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linux-zen-desktop/arch/sparc/include/asm/hypervisor.h

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SPARC64_HYPERVISOR_H
#define _SPARC64_HYPERVISOR_H
/* Sun4v hypervisor interfaces and defines.
*
* Hypervisor calls are made via traps to software traps number 0x80
* and above. Registers %o0 to %o5 serve as argument, status, and
* return value registers.
*
* There are two kinds of these traps. First there are the normal
* "fast traps" which use software trap 0x80 and encode the function
* to invoke by number in register %o5. Argument and return value
* handling is as follows:
*
* -----------------------------------------------
* | %o5 | function number | undefined |
* | %o0 | argument 0 | return status |
* | %o1 | argument 1 | return value 1 |
* | %o2 | argument 2 | return value 2 |
* | %o3 | argument 3 | return value 3 |
* | %o4 | argument 4 | return value 4 |
* -----------------------------------------------
*
* The second type are "hyper-fast traps" which encode the function
* number in the software trap number itself. So these use trap
* numbers > 0x80. The register usage for hyper-fast traps is as
* follows:
*
* -----------------------------------------------
* | %o0 | argument 0 | return status |
* | %o1 | argument 1 | return value 1 |
* | %o2 | argument 2 | return value 2 |
* | %o3 | argument 3 | return value 3 |
* | %o4 | argument 4 | return value 4 |
* -----------------------------------------------
*
* Registers providing explicit arguments to the hypervisor calls
* are volatile across the call. Upon return their values are
* undefined unless explicitly specified as containing a particular
* return value by the specific call. The return status is always
* returned in register %o0, zero indicates a successful execution of
* the hypervisor call and other values indicate an error status as
* defined below. So, for example, if a hyper-fast trap takes
* arguments 0, 1, and 2, then %o0, %o1, and %o2 are volatile across
* the call and %o3, %o4, and %o5 would be preserved.
*
* If the hypervisor trap is invalid, or the fast trap function number
* is invalid, HV_EBADTRAP will be returned in %o0. Also, all 64-bits
* of the argument and return values are significant.
*/
/* Trap numbers. */
#define HV_FAST_TRAP 0x80
#define HV_MMU_MAP_ADDR_TRAP 0x83
#define HV_MMU_UNMAP_ADDR_TRAP 0x84
#define HV_TTRACE_ADDENTRY_TRAP 0x85
#define HV_CORE_TRAP 0xff
/* Error codes. */
#define HV_EOK 0 /* Successful return */
#define HV_ENOCPU 1 /* Invalid CPU id */
#define HV_ENORADDR 2 /* Invalid real address */
#define HV_ENOINTR 3 /* Invalid interrupt id */
#define HV_EBADPGSZ 4 /* Invalid pagesize encoding */
#define HV_EBADTSB 5 /* Invalid TSB description */
#define HV_EINVAL 6 /* Invalid argument */
#define HV_EBADTRAP 7 /* Invalid function number */
#define HV_EBADALIGN 8 /* Invalid address alignment */
#define HV_EWOULDBLOCK 9 /* Cannot complete w/o blocking */
#define HV_ENOACCESS 10 /* No access to resource */
#define HV_EIO 11 /* I/O error */
#define HV_ECPUERROR 12 /* CPU in error state */
#define HV_ENOTSUPPORTED 13 /* Function not supported */
#define HV_ENOMAP 14 /* No mapping found */
#define HV_ETOOMANY 15 /* Too many items specified */
#define HV_ECHANNEL 16 /* Invalid LDC channel */
#define HV_EBUSY 17 /* Resource busy */
#define HV_EUNAVAILABLE 23 /* Resource or operation not
* currently available, but may
* become available in the future
*/
/* mach_exit()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_EXIT
* ARG0: exit code
* ERRORS: This service does not return.
*
* Stop all CPUs in the virtual domain and place them into the stopped
* state. The 64-bit exit code may be passed to a service entity as
* the domain's exit status. On systems without a service entity, the
* domain will undergo a reset, and the boot firmware will be
* reloaded.
*
* This function will never return to the guest that invokes it.
*
* Note: By convention an exit code of zero denotes a successful exit by
* the guest code. A non-zero exit code denotes a guest specific
* error indication.
*
*/
#define HV_FAST_MACH_EXIT 0x00
#ifndef __ASSEMBLY__
void sun4v_mach_exit(unsigned long exit_code);
#endif
/* Domain services. */
/* mach_desc()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_DESC
* ARG0: buffer
* ARG1: length
* RET0: status
* RET1: length
* ERRORS: HV_EBADALIGN Buffer is badly aligned
* HV_ENORADDR Buffer is to an illegal real address.
* HV_EINVAL Buffer length is too small for complete
* machine description.
*
* Copy the most current machine description into the buffer indicated
* by the real address in ARG0. The buffer provided must be 16 byte
* aligned. Upon success or HV_EINVAL, this service returns the
* actual size of the machine description in the RET1 return value.
*
* Note: A method of determining the appropriate buffer size for the
* machine description is to first call this service with a buffer
* length of 0 bytes.
*/
#define HV_FAST_MACH_DESC 0x01
#ifndef __ASSEMBLY__
unsigned long sun4v_mach_desc(unsigned long buffer_pa,
unsigned long buf_len,
unsigned long *real_buf_len);
#endif
/* mach_sir()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_SIR
* ERRORS: This service does not return.
*
* Perform a software initiated reset of the virtual machine domain.
* All CPUs are captured as soon as possible, all hardware devices are
* returned to the entry default state, and the domain is restarted at
* the SIR (trap type 0x04) real trap table (RTBA) entry point on one
* of the CPUs. The single CPU restarted is selected as determined by
* platform specific policy. Memory is preserved across this
* operation.
*/
#define HV_FAST_MACH_SIR 0x02
#ifndef __ASSEMBLY__
void sun4v_mach_sir(void);
#endif
/* mach_set_watchdog()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_SET_WATCHDOG
* ARG0: timeout in milliseconds
* RET0: status
* RET1: time remaining in milliseconds
*
* A guest uses this API to set a watchdog timer. Once the gues has set
* the timer, it must call the timer service again either to disable or
* postpone the expiration. If the timer expires before being reset or
* disabled, then the hypervisor take a platform specific action leading
* to guest termination within a bounded time period. The platform action
* may include recovery actions such as reporting the expiration to a
* Service Processor, and/or automatically restarting the gues.
*
* The 'timeout' parameter is specified in milliseconds, however the
* implementated granularity is given by the 'watchdog-resolution'
* property in the 'platform' node of the guest's machine description.
* The largest allowed timeout value is specified by the
* 'watchdog-max-timeout' property of the 'platform' node.
*
* If the 'timeout' argument is not zero, the watchdog timer is set to
* expire after a minimum of 'timeout' milliseconds.
*
* If the 'timeout' argument is zero, the watchdog timer is disabled.
*
* If the 'timeout' value exceeds the value of the 'max-watchdog-timeout'
* property, the hypervisor leaves the watchdog timer state unchanged,
* and returns a status of EINVAL.
*
* The 'time remaining' return value is valid regardless of whether the
* return status is EOK or EINVAL. A non-zero return value indicates the
* number of milliseconds that were remaining until the timer was to expire.
* If less than one millisecond remains, the return value is '1'. If the
* watchdog timer was disabled at the time of the call, the return value is
* zero.
*
* If the hypervisor cannot support the exact timeout value requested, but
* can support a larger timeout value, the hypervisor may round the actual
* timeout to a value larger than the requested timeout, consequently the
* 'time remaining' return value may be larger than the previously requested
* timeout value.
*
* Any guest OS debugger should be aware that the watchdog service may be in
* use. Consequently, it is recommended that the watchdog service is
* disabled upon debugger entry (e.g. reaching a breakpoint), and then
* re-enabled upon returning to normal execution. The API has been designed
* with this in mind, and the 'time remaining' result of the disable call may
* be used directly as the timeout argument of the re-enable call.
*/
#define HV_FAST_MACH_SET_WATCHDOG 0x05
#ifndef __ASSEMBLY__
unsigned long sun4v_mach_set_watchdog(unsigned long timeout,
unsigned long *orig_timeout);
#endif
/* CPU services.
*
* CPUs represent devices that can execute software threads. A single
* chip that contains multiple cores or strands is represented as
* multiple CPUs with unique CPU identifiers. CPUs are exported to
* OBP via the machine description (and to the OS via the OBP device
* tree). CPUs are always in one of three states: stopped, running,
* or error.
*
* A CPU ID is a pre-assigned 16-bit value that uniquely identifies a
* CPU within a logical domain. Operations that are to be performed
* on multiple CPUs specify them via a CPU list. A CPU list is an
* array in real memory, of which each 16-bit word is a CPU ID. CPU
* lists are passed through the API as two arguments. The first is
* the number of entries (16-bit words) in the CPU list, and the
* second is the (real address) pointer to the CPU ID list.
*/
/* cpu_start()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_START
* ARG0: CPU ID
* ARG1: PC
* ARG2: RTBA
* ARG3: target ARG0
* RET0: status
* ERRORS: ENOCPU Invalid CPU ID
* EINVAL Target CPU ID is not in the stopped state
* ENORADDR Invalid PC or RTBA real address
* EBADALIGN Unaligned PC or unaligned RTBA
* EWOULDBLOCK Starting resources are not available
*
* Start CPU with given CPU ID with PC in %pc and with a real trap
* base address value of RTBA. The indicated CPU must be in the
* stopped state. The supplied RTBA must be aligned on a 256 byte
* boundary. On successful completion, the specified CPU will be in
* the running state and will be supplied with "target ARG0" in %o0
* and RTBA in %tba.
*/
#define HV_FAST_CPU_START 0x10
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_start(unsigned long cpuid,
unsigned long pc,
unsigned long rtba,
unsigned long arg0);
#endif
/* cpu_stop()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_STOP
* ARG0: CPU ID
* RET0: status
* ERRORS: ENOCPU Invalid CPU ID
* EINVAL Target CPU ID is the current cpu
* EINVAL Target CPU ID is not in the running state
* EWOULDBLOCK Stopping resources are not available
* ENOTSUPPORTED Not supported on this platform
*
* The specified CPU is stopped. The indicated CPU must be in the
* running state. On completion, it will be in the stopped state. It
* is not legal to stop the current CPU.
*
* Note: As this service cannot be used to stop the current cpu, this service
* may not be used to stop the last running CPU in a domain. To stop
* and exit a running domain, a guest must use the mach_exit() service.
*/
#define HV_FAST_CPU_STOP 0x11
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_stop(unsigned long cpuid);
#endif
/* cpu_yield()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_YIELD
* RET0: status
* ERRORS: No possible error.
*
* Suspend execution on the current CPU. Execution will resume when
* an interrupt (device, %stick_compare, or cross-call) is targeted to
* the CPU. On some CPUs, this API may be used by the hypervisor to
* save power by disabling hardware strands.
*/
#define HV_FAST_CPU_YIELD 0x12
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_yield(void);
#endif
/* cpu_poke()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_POKE
* RET0: status
* ERRORS: ENOCPU cpuid refers to a CPU that does not exist
* EINVAL cpuid is current CPU
*
* Poke CPU cpuid. If the target CPU is currently suspended having
* invoked the cpu-yield service, that vCPU will be resumed.
* Poke interrupts may only be sent to valid, non-local CPUs.
* It is not legal to poke the current vCPU.
*/
#define HV_FAST_CPU_POKE 0x13
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_poke(unsigned long cpuid);
#endif
/* cpu_qconf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_QCONF
* ARG0: queue
* ARG1: base real address
* ARG2: number of entries
* RET0: status
* ERRORS: ENORADDR Invalid base real address
* EINVAL Invalid queue or number of entries is less
* than 2 or too large.
* EBADALIGN Base real address is not correctly aligned
* for size.
*
* Configure the given queue to be placed at the given base real
* address, with the given number of entries. The number of entries
* must be a power of 2. The base real address must be aligned
* exactly to match the queue size. Each queue entry is 64 bytes
* long, so for example a 32 entry queue must be aligned on a 2048
* byte real address boundary.
*
* The specified queue is unconfigured if the number of entries is given
* as zero.
*
* For the current version of this API service, the argument queue is defined
* as follows:
*
* queue description
* ----- -------------------------
* 0x3c cpu mondo queue
* 0x3d device mondo queue
* 0x3e resumable error queue
* 0x3f non-resumable error queue
*
* Note: The maximum number of entries for each queue for a specific cpu may
* be determined from the machine description.
*/
#define HV_FAST_CPU_QCONF 0x14
#define HV_CPU_QUEUE_CPU_MONDO 0x3c
#define HV_CPU_QUEUE_DEVICE_MONDO 0x3d
#define HV_CPU_QUEUE_RES_ERROR 0x3e
#define HV_CPU_QUEUE_NONRES_ERROR 0x3f
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_qconf(unsigned long type,
unsigned long queue_paddr,
unsigned long num_queue_entries);
#endif
/* cpu_qinfo()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_QINFO
* ARG0: queue
* RET0: status
* RET1: base real address
* RET1: number of entries
* ERRORS: EINVAL Invalid queue
*
* Return the configuration info for the given queue. The base real
* address and number of entries of the defined queue are returned.
* The queue argument values are the same as for cpu_qconf() above.
*
* If the specified queue is a valid queue number, but no queue has
* been defined, the number of entries will be set to zero and the
* base real address returned is undefined.
*/
#define HV_FAST_CPU_QINFO 0x15
/* cpu_mondo_send()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_MONDO_SEND
* ARG0-1: CPU list
* ARG2: data real address
* RET0: status
* ERRORS: EBADALIGN Mondo data is not 64-byte aligned or CPU list
* is not 2-byte aligned.
* ENORADDR Invalid data mondo address, or invalid cpu list
* address.
* ENOCPU Invalid cpu in CPU list
* EWOULDBLOCK Some or all of the listed CPUs did not receive
* the mondo
* ECPUERROR One or more of the listed CPUs are in error
* state, use HV_FAST_CPU_STATE to see which ones
* EINVAL CPU list includes caller's CPU ID
*
* Send a mondo interrupt to the CPUs in the given CPU list with the
* 64-bytes at the given data real address. The data must be 64-byte
* aligned. The mondo data will be delivered to the cpu_mondo queues
* of the recipient CPUs.
*
* In all cases, error or not, the CPUs in the CPU list to which the
* mondo has been successfully delivered will be indicated by having
* their entry in CPU list updated with the value 0xffff.
*/
#define HV_FAST_CPU_MONDO_SEND 0x42
#ifndef __ASSEMBLY__
unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count,
unsigned long cpu_list_pa,
unsigned long mondo_block_pa);
#endif
/* cpu_myid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_MYID
* RET0: status
* RET1: CPU ID
* ERRORS: No errors defined.
*
* Return the hypervisor ID handle for the current CPU. Use by a
* virtual CPU to discover it's own identity.
*/
#define HV_FAST_CPU_MYID 0x16
/* cpu_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_STATE
* ARG0: CPU ID
* RET0: status
* RET1: state
* ERRORS: ENOCPU Invalid CPU ID
*
* Retrieve the current state of the CPU with the given CPU ID.
*/
#define HV_FAST_CPU_STATE 0x17
#define HV_CPU_STATE_STOPPED 0x01
#define HV_CPU_STATE_RUNNING 0x02
#define HV_CPU_STATE_ERROR 0x03
#ifndef __ASSEMBLY__
long sun4v_cpu_state(unsigned long cpuid);
#endif
/* cpu_set_rtba()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_SET_RTBA
* ARG0: RTBA
* RET0: status
* RET1: previous RTBA
* ERRORS: ENORADDR Invalid RTBA real address
* EBADALIGN RTBA is incorrectly aligned for a trap table
*
* Set the real trap base address of the local cpu to the given RTBA.
* The supplied RTBA must be aligned on a 256 byte boundary. Upon
* success the previous value of the RTBA is returned in RET1.
*
* Note: This service does not affect %tba
*/
#define HV_FAST_CPU_SET_RTBA 0x18
/* cpu_set_rtba()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CPU_GET_RTBA
* RET0: status
* RET1: previous RTBA
* ERRORS: No possible error.
*
* Returns the current value of RTBA in RET1.
*/
#define HV_FAST_CPU_GET_RTBA 0x19
/* MMU services.
*
* Layout of a TSB description for mmu_tsb_ctx{,non}0() calls.
*/
#ifndef __ASSEMBLY__
struct hv_tsb_descr {
unsigned short pgsz_idx;
unsigned short assoc;
unsigned int num_ttes; /* in TTEs */
unsigned int ctx_idx;
unsigned int pgsz_mask;
unsigned long tsb_base;
unsigned long resv;
};
#endif
#define HV_TSB_DESCR_PGSZ_IDX_OFFSET 0x00
#define HV_TSB_DESCR_ASSOC_OFFSET 0x02
#define HV_TSB_DESCR_NUM_TTES_OFFSET 0x04
#define HV_TSB_DESCR_CTX_IDX_OFFSET 0x08
#define HV_TSB_DESCR_PGSZ_MASK_OFFSET 0x0c
#define HV_TSB_DESCR_TSB_BASE_OFFSET 0x10
#define HV_TSB_DESCR_RESV_OFFSET 0x18
/* Page size bitmask. */
#define HV_PGSZ_MASK_8K (1 << 0)
#define HV_PGSZ_MASK_64K (1 << 1)
#define HV_PGSZ_MASK_512K (1 << 2)
#define HV_PGSZ_MASK_4MB (1 << 3)
#define HV_PGSZ_MASK_32MB (1 << 4)
#define HV_PGSZ_MASK_256MB (1 << 5)
#define HV_PGSZ_MASK_2GB (1 << 6)
#define HV_PGSZ_MASK_16GB (1 << 7)
/* Page size index. The value given in the TSB descriptor must correspond
* to the smallest page size specified in the pgsz_mask page size bitmask.
*/
#define HV_PGSZ_IDX_8K 0
#define HV_PGSZ_IDX_64K 1
#define HV_PGSZ_IDX_512K 2
#define HV_PGSZ_IDX_4MB 3
#define HV_PGSZ_IDX_32MB 4
#define HV_PGSZ_IDX_256MB 5
#define HV_PGSZ_IDX_2GB 6
#define HV_PGSZ_IDX_16GB 7
/* MMU fault status area.
*
* MMU related faults have their status and fault address information
* placed into a memory region made available by privileged code. Each
* virtual processor must make a mmu_fault_area_conf() call to tell the
* hypervisor where that processor's fault status should be stored.
*
* The fault status block is a multiple of 64-bytes and must be aligned
* on a 64-byte boundary.
*/
#ifndef __ASSEMBLY__
struct hv_fault_status {
unsigned long i_fault_type;
unsigned long i_fault_addr;
unsigned long i_fault_ctx;
unsigned long i_reserved[5];
unsigned long d_fault_type;
unsigned long d_fault_addr;
unsigned long d_fault_ctx;
unsigned long d_reserved[5];
};
#endif
#define HV_FAULT_I_TYPE_OFFSET 0x00
#define HV_FAULT_I_ADDR_OFFSET 0x08
#define HV_FAULT_I_CTX_OFFSET 0x10
#define HV_FAULT_D_TYPE_OFFSET 0x40
#define HV_FAULT_D_ADDR_OFFSET 0x48
#define HV_FAULT_D_CTX_OFFSET 0x50
#define HV_FAULT_TYPE_FAST_MISS 1
#define HV_FAULT_TYPE_FAST_PROT 2
#define HV_FAULT_TYPE_MMU_MISS 3
#define HV_FAULT_TYPE_INV_RA 4
#define HV_FAULT_TYPE_PRIV_VIOL 5
#define HV_FAULT_TYPE_PROT_VIOL 6
#define HV_FAULT_TYPE_NFO 7
#define HV_FAULT_TYPE_NFO_SEFF 8
#define HV_FAULT_TYPE_INV_VA 9
#define HV_FAULT_TYPE_INV_ASI 10
#define HV_FAULT_TYPE_NC_ATOMIC 11
#define HV_FAULT_TYPE_PRIV_ACT 12
#define HV_FAULT_TYPE_RESV1 13
#define HV_FAULT_TYPE_UNALIGNED 14
#define HV_FAULT_TYPE_INV_PGSZ 15
#define HV_FAULT_TYPE_MCD 17
#define HV_FAULT_TYPE_MCD_DIS 18
/* Values 16 --> -2 are reserved. */
#define HV_FAULT_TYPE_MULTIPLE -1
/* Flags argument for mmu_{map,unmap}_addr(), mmu_demap_{page,context,all}(),
* and mmu_{map,unmap}_perm_addr().
*/
#define HV_MMU_DMMU 0x01
#define HV_MMU_IMMU 0x02
#define HV_MMU_ALL (HV_MMU_DMMU | HV_MMU_IMMU)
/* mmu_map_addr()
* TRAP: HV_MMU_MAP_ADDR_TRAP
* ARG0: virtual address
* ARG1: mmu context
* ARG2: TTE
* ARG3: flags (HV_MMU_{IMMU,DMMU})
* ERRORS: EINVAL Invalid virtual address, mmu context, or flags
* EBADPGSZ Invalid page size value
* ENORADDR Invalid real address in TTE
*
* Create a non-permanent mapping using the given TTE, virtual
* address, and mmu context. The flags argument determines which
* (data, or instruction, or both) TLB the mapping gets loaded into.
*
* The behavior is undefined if the valid bit is clear in the TTE.
*
* Note: This API call is for privileged code to specify temporary translation
* mappings without the need to create and manage a TSB.
*/
/* mmu_unmap_addr()
* TRAP: HV_MMU_UNMAP_ADDR_TRAP
* ARG0: virtual address
* ARG1: mmu context
* ARG2: flags (HV_MMU_{IMMU,DMMU})
* ERRORS: EINVAL Invalid virtual address, mmu context, or flags
*
* Demaps the given virtual address in the given mmu context on this
* CPU. This function is intended to be used to demap pages mapped
* with mmu_map_addr. This service is equivalent to invoking
* mmu_demap_page() with only the current CPU in the CPU list. The
* flags argument determines which (data, or instruction, or both) TLB
* the mapping gets unmapped from.
*
* Attempting to perform an unmap operation for a previously defined
* permanent mapping will have undefined results.
*/
/* mmu_tsb_ctx0()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_TSB_CTX0
* ARG0: number of TSB descriptions
* ARG1: TSB descriptions pointer
* RET0: status
* ERRORS: ENORADDR Invalid TSB descriptions pointer or
* TSB base within a descriptor
* EBADALIGN TSB descriptions pointer is not aligned
* to an 8-byte boundary, or TSB base
* within a descriptor is not aligned for
* the given TSB size
* EBADPGSZ Invalid page size in a TSB descriptor
* EBADTSB Invalid associativity or size in a TSB
* descriptor
* EINVAL Invalid number of TSB descriptions, or
* invalid context index in a TSB
* descriptor, or index page size not
* equal to smallest page size in page
* size bitmask field.
*
* Configures the TSBs for the current CPU for virtual addresses with
* context zero. The TSB descriptions pointer is a pointer to an
* array of the given number of TSB descriptions.
*
* Note: The maximum number of TSBs available to a virtual CPU is given by the
* mmu-max-#tsbs property of the cpu's corresponding "cpu" node in the
* machine description.
*/
#define HV_FAST_MMU_TSB_CTX0 0x20
#ifndef __ASSEMBLY__
unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
unsigned long tsb_desc_ra);
#endif
/* mmu_tsb_ctxnon0()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_TSB_CTXNON0
* ARG0: number of TSB descriptions
* ARG1: TSB descriptions pointer
* RET0: status
* ERRORS: Same as for mmu_tsb_ctx0() above.
*
* Configures the TSBs for the current CPU for virtual addresses with
* non-zero contexts. The TSB descriptions pointer is a pointer to an
* array of the given number of TSB descriptions.
*
* Note: A maximum of 16 TSBs may be specified in the TSB description list.
*/
#define HV_FAST_MMU_TSB_CTXNON0 0x21
/* mmu_demap_page()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_DEMAP_PAGE
* ARG0: reserved, must be zero
* ARG1: reserved, must be zero
* ARG2: virtual address
* ARG3: mmu context
* ARG4: flags (HV_MMU_{IMMU,DMMU})
* RET0: status
* ERRORS: EINVAL Invalid virtual address, context, or
* flags value
* ENOTSUPPORTED ARG0 or ARG1 is non-zero
*
* Demaps any page mapping of the given virtual address in the given
* mmu context for the current virtual CPU. Any virtually tagged
* caches are guaranteed to be kept consistent. The flags argument
* determines which TLB (instruction, or data, or both) participate in
* the operation.
*
* ARG0 and ARG1 are both reserved and must be set to zero.
*/
#define HV_FAST_MMU_DEMAP_PAGE 0x22
/* mmu_demap_ctx()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_DEMAP_CTX
* ARG0: reserved, must be zero
* ARG1: reserved, must be zero
* ARG2: mmu context
* ARG3: flags (HV_MMU_{IMMU,DMMU})
* RET0: status
* ERRORS: EINVAL Invalid context or flags value
* ENOTSUPPORTED ARG0 or ARG1 is non-zero
*
* Demaps all non-permanent virtual page mappings previously specified
* for the given context for the current virtual CPU. Any virtual
* tagged caches are guaranteed to be kept consistent. The flags
* argument determines which TLB (instruction, or data, or both)
* participate in the operation.
*
* ARG0 and ARG1 are both reserved and must be set to zero.
*/
#define HV_FAST_MMU_DEMAP_CTX 0x23
/* mmu_demap_all()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_DEMAP_ALL
* ARG0: reserved, must be zero
* ARG1: reserved, must be zero
* ARG2: flags (HV_MMU_{IMMU,DMMU})
* RET0: status
* ERRORS: EINVAL Invalid flags value
* ENOTSUPPORTED ARG0 or ARG1 is non-zero
*
* Demaps all non-permanent virtual page mappings previously specified
* for the current virtual CPU. Any virtual tagged caches are
* guaranteed to be kept consistent. The flags argument determines
* which TLB (instruction, or data, or both) participate in the
* operation.
*
* ARG0 and ARG1 are both reserved and must be set to zero.
*/
#define HV_FAST_MMU_DEMAP_ALL 0x24
#ifndef __ASSEMBLY__
void sun4v_mmu_demap_all(void);
#endif
/* mmu_map_perm_addr()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR
* ARG0: virtual address
* ARG1: reserved, must be zero
* ARG2: TTE
* ARG3: flags (HV_MMU_{IMMU,DMMU})
* RET0: status
* ERRORS: EINVAL Invalid virtual address or flags value
* EBADPGSZ Invalid page size value
* ENORADDR Invalid real address in TTE
* ETOOMANY Too many mappings (max of 8 reached)
*
* Create a permanent mapping using the given TTE and virtual address
* for context 0 on the calling virtual CPU. A maximum of 8 such
* permanent mappings may be specified by privileged code. Mappings
* may be removed with mmu_unmap_perm_addr().
*
* The behavior is undefined if a TTE with the valid bit clear is given.
*
* Note: This call is used to specify address space mappings for which
* privileged code does not expect to receive misses. For example,
* this mechanism can be used to map kernel nucleus code and data.
*/
#define HV_FAST_MMU_MAP_PERM_ADDR 0x25
#ifndef __ASSEMBLY__
unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
unsigned long set_to_zero,
unsigned long tte,
unsigned long flags);
#endif
/* mmu_fault_area_conf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_FAULT_AREA_CONF
* ARG0: real address
* RET0: status
* RET1: previous mmu fault area real address
* ERRORS: ENORADDR Invalid real address
* EBADALIGN Invalid alignment for fault area
*
* Configure the MMU fault status area for the calling CPU. A 64-byte
* aligned real address specifies where MMU fault status information
* is placed. The return value is the previously specified area, or 0
* for the first invocation. Specifying a fault area at real address
* 0 is not allowed.
*/
#define HV_FAST_MMU_FAULT_AREA_CONF 0x26
/* mmu_enable()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_ENABLE
* ARG0: enable flag
* ARG1: return target address
* RET0: status
* ERRORS: ENORADDR Invalid real address when disabling
* translation.
* EBADALIGN The return target address is not
* aligned to an instruction.
* EINVAL The enable flag request the current
* operating mode (e.g. disable if already
* disabled)
*
* Enable or disable virtual address translation for the calling CPU
* within the virtual machine domain. If the enable flag is zero,
* translation is disabled, any non-zero value will enable
* translation.
*
* When this function returns, the newly selected translation mode
* will be active. If the mmu is being enabled, then the return
* target address is a virtual address else it is a real address.
*
* Upon successful completion, control will be returned to the given
* return target address (ie. the cpu will jump to that address). On
* failure, the previous mmu mode remains and the trap simply returns
* as normal with the appropriate error code in RET0.
*/
#define HV_FAST_MMU_ENABLE 0x27
/* mmu_unmap_perm_addr()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_UNMAP_PERM_ADDR
* ARG0: virtual address
* ARG1: reserved, must be zero
* ARG2: flags (HV_MMU_{IMMU,DMMU})
* RET0: status
* ERRORS: EINVAL Invalid virtual address or flags value
* ENOMAP Specified mapping was not found
*
* Demaps any permanent page mapping (established via
* mmu_map_perm_addr()) at the given virtual address for context 0 on
* the current virtual CPU. Any virtual tagged caches are guaranteed
* to be kept consistent.
*/
#define HV_FAST_MMU_UNMAP_PERM_ADDR 0x28
/* mmu_tsb_ctx0_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_TSB_CTX0_INFO
* ARG0: max TSBs
* ARG1: buffer pointer
* RET0: status
* RET1: number of TSBs
* ERRORS: EINVAL Supplied buffer is too small
* EBADALIGN The buffer pointer is badly aligned
* ENORADDR Invalid real address for buffer pointer
*
* Return the TSB configuration as previous defined by mmu_tsb_ctx0()
* into the provided buffer. The size of the buffer is given in ARG1
* in terms of the number of TSB description entries.
*
* Upon return, RET1 always contains the number of TSB descriptions
* previously configured. If zero TSBs were configured, EOK is
* returned with RET1 containing 0.
*/
#define HV_FAST_MMU_TSB_CTX0_INFO 0x29
/* mmu_tsb_ctxnon0_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_TSB_CTXNON0_INFO
* ARG0: max TSBs
* ARG1: buffer pointer
* RET0: status
* RET1: number of TSBs
* ERRORS: EINVAL Supplied buffer is too small
* EBADALIGN The buffer pointer is badly aligned
* ENORADDR Invalid real address for buffer pointer
*
* Return the TSB configuration as previous defined by
* mmu_tsb_ctxnon0() into the provided buffer. The size of the buffer
* is given in ARG1 in terms of the number of TSB description entries.
*
* Upon return, RET1 always contains the number of TSB descriptions
* previously configured. If zero TSBs were configured, EOK is
* returned with RET1 containing 0.
*/
#define HV_FAST_MMU_TSB_CTXNON0_INFO 0x2a
/* mmu_fault_area_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_FAULT_AREA_INFO
* RET0: status
* RET1: fault area real address
* ERRORS: No errors defined.
*
* Return the currently defined MMU fault status area for the current
* CPU. The real address of the fault status area is returned in
* RET1, or 0 is returned in RET1 if no fault status area is defined.
*
* Note: mmu_fault_area_conf() may be called with the return value (RET1)
* from this service if there is a need to save and restore the fault
* area for a cpu.
*/
#define HV_FAST_MMU_FAULT_AREA_INFO 0x2b
/* Cache and Memory services. */
/* mem_scrub()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MEM_SCRUB
* ARG0: real address
* ARG1: length
* RET0: status
* RET1: length scrubbed
* ERRORS: ENORADDR Invalid real address
* EBADALIGN Start address or length are not correctly
* aligned
* EINVAL Length is zero
*
* Zero the memory contents in the range real address to real address
* plus length minus 1. Also, valid ECC will be generated for that
* memory address range. Scrubbing is started at the given real
* address, but may not scrub the entire given length. The actual
* length scrubbed will be returned in RET1.
*
* The real address and length must be aligned on an 8K boundary, or
* contain the start address and length from a sun4v error report.
*
* Note: There are two uses for this function. The first use is to block clear
* and initialize memory and the second is to scrub an u ncorrectable
* error reported via a resumable or non-resumable trap. The second
* use requires the arguments to be equal to the real address and length
* provided in a sun4v memory error report.
*/
#define HV_FAST_MEM_SCRUB 0x31
/* mem_sync()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MEM_SYNC
* ARG0: real address
* ARG1: length
* RET0: status
* RET1: length synced
* ERRORS: ENORADDR Invalid real address
* EBADALIGN Start address or length are not correctly
* aligned
* EINVAL Length is zero
*
* Force the next access within the real address to real address plus
* length minus 1 to be fetches from main system memory. Less than
* the given length may be synced, the actual amount synced is
* returned in RET1. The real address and length must be aligned on
* an 8K boundary.
*/
#define HV_FAST_MEM_SYNC 0x32
/* Coprocessor services
*
* M7 and later processors provide an on-chip coprocessor which
* accelerates database operations, and is known internally as
* DAX.
*/
/* ccb_submit()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_CCB_SUBMIT
* ARG0: address of CCB array
* ARG1: size (in bytes) of CCB array being submitted
* ARG2: flags
* ARG3: reserved
* RET0: status (success or error code)
* RET1: size (in bytes) of CCB array that was accepted (might be less
* than arg1)
* RET2: status data
* if status == ENOMAP or ENOACCESS, identifies the VA in question
* if status == EUNAVAILBLE, unavailable code
* RET3: reserved
*
* ERRORS: EOK successful submission (check size)
* EWOULDBLOCK could not finish submissions, try again
* EBADALIGN array not 64B aligned or size not 64B multiple
* ENORADDR invalid RA for array or in CCB
* ENOMAP could not translate address (see status data)
* EINVAL invalid ccb or arguments
* ETOOMANY too many ccbs with all-or-nothing flag
* ENOACCESS guest has no access to submit ccbs or address
* in CCB does not have correct permissions (check
* status data)
* EUNAVAILABLE ccb operation could not be performed at this
* time (check status data)
* Status data codes:
* 0 - exact CCB could not be executed
* 1 - CCB opcode cannot be executed
* 2 - CCB version cannot be executed
* 3 - vcpu cannot execute CCBs
* 4 - no CCBs can be executed
*/
#define HV_CCB_SUBMIT 0x34
#ifndef __ASSEMBLY__
unsigned long sun4v_ccb_submit(unsigned long ccb_buf,
unsigned long len,
unsigned long flags,
unsigned long reserved,
void *submitted_len,
void *status_data);
#endif
/* flags (ARG2) */
#define HV_CCB_QUERY_CMD BIT(1)
#define HV_CCB_ARG0_TYPE_REAL 0UL
#define HV_CCB_ARG0_TYPE_PRIMARY BIT(4)
#define HV_CCB_ARG0_TYPE_SECONDARY BIT(5)
#define HV_CCB_ARG0_TYPE_NUCLEUS GENMASK(5, 4)
#define HV_CCB_ARG0_PRIVILEGED BIT(6)
#define HV_CCB_ALL_OR_NOTHING BIT(7)
#define HV_CCB_QUEUE_INFO BIT(8)
#define HV_CCB_VA_REJECT 0UL
#define HV_CCB_VA_SECONDARY BIT(13)
#define HV_CCB_VA_NUCLEUS GENMASK(13, 12)
#define HV_CCB_VA_PRIVILEGED BIT(14)
#define HV_CCB_VA_READ_ADI_DISABLE BIT(15) /* DAX2 only */
/* ccb_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_CCB_INFO
* ARG0: real address of CCB completion area
* RET0: status (success or error code)
* RET1: info array
* - RET1[0]: CCB state
* - RET1[1]: dax unit
* - RET1[2]: queue number
* - RET1[3]: queue position
*
* ERRORS: EOK operation successful
* EBADALIGN address not 64B aligned
* ENORADDR RA in address not valid
* EINVAL CA not valid
* EWOULDBLOCK info not available for this CCB currently, try
* again
* ENOACCESS guest cannot use dax
*/
#define HV_CCB_INFO 0x35
#ifndef __ASSEMBLY__
unsigned long sun4v_ccb_info(unsigned long ca,
void *info_arr);
#endif
/* info array byte offsets (RET1) */
#define CCB_INFO_OFFSET_CCB_STATE 0
#define CCB_INFO_OFFSET_DAX_UNIT 2
#define CCB_INFO_OFFSET_QUEUE_NUM 4
#define CCB_INFO_OFFSET_QUEUE_POS 6
/* CCB state (RET1[0]) */
#define HV_CCB_STATE_COMPLETED 0
#define HV_CCB_STATE_ENQUEUED 1
#define HV_CCB_STATE_INPROGRESS 2
#define HV_CCB_STATE_NOTFOUND 3
/* ccb_kill()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_CCB_KILL
* ARG0: real address of CCB completion area
* RET0: status (success or error code)
* RET1: CCB kill status
*
* ERRORS: EOK operation successful
* EBADALIGN address not 64B aligned
* ENORADDR RA in address not valid
* EINVAL CA not valid
* EWOULDBLOCK kill not available for this CCB currently, try
* again
* ENOACCESS guest cannot use dax
*/
#define HV_CCB_KILL 0x36
#ifndef __ASSEMBLY__
unsigned long sun4v_ccb_kill(unsigned long ca,
void *kill_status);
#endif
/* CCB kill status (RET1) */
#define HV_CCB_KILL_COMPLETED 0
#define HV_CCB_KILL_DEQUEUED 1
#define HV_CCB_KILL_KILLED 2
#define HV_CCB_KILL_NOTFOUND 3
/* Time of day services.
*
* The hypervisor maintains the time of day on a per-domain basis.
* Changing the time of day in one domain does not affect the time of
* day on any other domain.
*
* Time is described by a single unsigned 64-bit word which is the
* number of seconds since the UNIX Epoch (00:00:00 UTC, January 1,
* 1970).
*/
/* tod_get()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TOD_GET
* RET0: status
* RET1: TOD
* ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable
* ENOTSUPPORTED If TOD not supported on this platform
*
* Return the current time of day. May block if TOD access is
* temporarily not possible.
*/
#define HV_FAST_TOD_GET 0x50
#ifndef __ASSEMBLY__
unsigned long sun4v_tod_get(unsigned long *time);
#endif
/* tod_set()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TOD_SET
* ARG0: TOD
* RET0: status
* ERRORS: EWOULDBLOCK TOD resource is temporarily unavailable
* ENOTSUPPORTED If TOD not supported on this platform
*
* The current time of day is set to the value specified in ARG0. May
* block if TOD access is temporarily not possible.
*/
#define HV_FAST_TOD_SET 0x51
#ifndef __ASSEMBLY__
unsigned long sun4v_tod_set(unsigned long time);
#endif
/* Console services */
/* con_getchar()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CONS_GETCHAR
* RET0: status
* RET1: character
* ERRORS: EWOULDBLOCK No character available.
*
* Returns a character from the console device. If no character is
* available then an EWOULDBLOCK error is returned. If a character is
* available, then the returned status is EOK and the character value
* is in RET1.
*
* A virtual BREAK is represented by the 64-bit value -1.
*
* A virtual HUP signal is represented by the 64-bit value -2.
*/
#define HV_FAST_CONS_GETCHAR 0x60
/* con_putchar()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CONS_PUTCHAR
* ARG0: character
* RET0: status
* ERRORS: EINVAL Illegal character
* EWOULDBLOCK Output buffer currently full, would block
*
* Send a character to the console device. Only character values
* between 0 and 255 may be used. Values outside this range are
* invalid except for the 64-bit value -1 which is used to send a
* virtual BREAK.
*/
#define HV_FAST_CONS_PUTCHAR 0x61
/* con_read()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CONS_READ
* ARG0: buffer real address
* ARG1: buffer size in bytes
* RET0: status
* RET1: bytes read or BREAK or HUP
* ERRORS: EWOULDBLOCK No character available.
*
* Reads characters into a buffer from the console device. If no
* character is available then an EWOULDBLOCK error is returned.
* If a character is available, then the returned status is EOK
* and the number of bytes read into the given buffer is provided
* in RET1.
*
* A virtual BREAK is represented by the 64-bit RET1 value -1.
*
* A virtual HUP signal is represented by the 64-bit RET1 value -2.
*
* If BREAK or HUP are indicated, no bytes were read into buffer.
*/
#define HV_FAST_CONS_READ 0x62
/* con_write()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_CONS_WRITE
* ARG0: buffer real address
* ARG1: buffer size in bytes
* RET0: status
* RET1: bytes written
* ERRORS: EWOULDBLOCK Output buffer currently full, would block
*
* Send a characters in buffer to the console device. Breaks must be
* sent using con_putchar().
*/
#define HV_FAST_CONS_WRITE 0x63
#ifndef __ASSEMBLY__
long sun4v_con_getchar(long *status);
long sun4v_con_putchar(long c);
long sun4v_con_read(unsigned long buffer,
unsigned long size,
unsigned long *bytes_read);
unsigned long sun4v_con_write(unsigned long buffer,
unsigned long size,
unsigned long *bytes_written);
#endif
/* mach_set_soft_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_SET_SOFT_STATE
* ARG0: software state
* ARG1: software state description pointer
* RET0: status
* ERRORS: EINVAL software state not valid or software state
* description is not NULL terminated
* ENORADDR software state description pointer is not a
* valid real address
* EBADALIGNED software state description is not correctly
* aligned
*
* This allows the guest to report it's soft state to the hypervisor. There
* are two primary components to this state. The first part states whether
* the guest software is running or not. The second containts optional
* details specific to the software.
*
* The software state argument is defined below in HV_SOFT_STATE_*, and
* indicates whether the guest is operating normally or in a transitional
* state.
*
* The software state description argument is a real address of a data buffer
* of size 32-bytes aligned on a 32-byte boundary. It is treated as a NULL
* terminated 7-bit ASCII string of up to 31 characters not including the
* NULL termination.
*/
#define HV_FAST_MACH_SET_SOFT_STATE 0x70
#define HV_SOFT_STATE_NORMAL 0x01
#define HV_SOFT_STATE_TRANSITION 0x02
#ifndef __ASSEMBLY__
unsigned long sun4v_mach_set_soft_state(unsigned long soft_state,
unsigned long msg_string_ra);
#endif
/* mach_get_soft_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MACH_GET_SOFT_STATE
* ARG0: software state description pointer
* RET0: status
* RET1: software state
* ERRORS: ENORADDR software state description pointer is not a
* valid real address
* EBADALIGNED software state description is not correctly
* aligned
*
* Retrieve the current value of the guest's software state. The rules
* for the software state pointer are the same as for mach_set_soft_state()
* above.
*/
#define HV_FAST_MACH_GET_SOFT_STATE 0x71
/* svc_send()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SVC_SEND
* ARG0: service ID
* ARG1: buffer real address
* ARG2: buffer size
* RET0: STATUS
* RET1: sent_bytes
*
* Be careful, all output registers are clobbered by this operation,
* so for example it is not possible to save away a value in %o4
* across the trap.
*/
#define HV_FAST_SVC_SEND 0x80
/* svc_recv()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SVC_RECV
* ARG0: service ID
* ARG1: buffer real address
* ARG2: buffer size
* RET0: STATUS
* RET1: recv_bytes
*
* Be careful, all output registers are clobbered by this operation,
* so for example it is not possible to save away a value in %o4
* across the trap.
*/
#define HV_FAST_SVC_RECV 0x81
/* svc_getstatus()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SVC_GETSTATUS
* ARG0: service ID
* RET0: STATUS
* RET1: status bits
*/
#define HV_FAST_SVC_GETSTATUS 0x82
/* svc_setstatus()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SVC_SETSTATUS
* ARG0: service ID
* ARG1: bits to set
* RET0: STATUS
*/
#define HV_FAST_SVC_SETSTATUS 0x83
/* svc_clrstatus()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SVC_CLRSTATUS
* ARG0: service ID
* ARG1: bits to clear
* RET0: STATUS
*/
#define HV_FAST_SVC_CLRSTATUS 0x84
#ifndef __ASSEMBLY__
unsigned long sun4v_svc_send(unsigned long svc_id,
unsigned long buffer,
unsigned long buffer_size,
unsigned long *sent_bytes);
unsigned long sun4v_svc_recv(unsigned long svc_id,
unsigned long buffer,
unsigned long buffer_size,
unsigned long *recv_bytes);
unsigned long sun4v_svc_getstatus(unsigned long svc_id,
unsigned long *status_bits);
unsigned long sun4v_svc_setstatus(unsigned long svc_id,
unsigned long status_bits);
unsigned long sun4v_svc_clrstatus(unsigned long svc_id,
unsigned long status_bits);
#endif
/* Trap trace services.
*
* The hypervisor provides a trap tracing capability for privileged
* code running on each virtual CPU. Privileged code provides a
* round-robin trap trace queue within which the hypervisor writes
* 64-byte entries detailing hyperprivileged traps taken n behalf of
* privileged code. This is provided as a debugging capability for
* privileged code.
*
* The trap trace control structure is 64-bytes long and placed at the
* start (offset 0) of the trap trace buffer, and is described as
* follows:
*/
#ifndef __ASSEMBLY__
struct hv_trap_trace_control {
unsigned long head_offset;
unsigned long tail_offset;
unsigned long __reserved[0x30 / sizeof(unsigned long)];
};
#endif
#define HV_TRAP_TRACE_CTRL_HEAD_OFFSET 0x00
#define HV_TRAP_TRACE_CTRL_TAIL_OFFSET 0x08
/* The head offset is the offset of the most recently completed entry
* in the trap-trace buffer. The tail offset is the offset of the
* next entry to be written. The control structure is owned and
* modified by the hypervisor. A guest may not modify the control
* structure contents. Attempts to do so will result in undefined
* behavior for the guest.
*
* Each trap trace buffer entry is laid out as follows:
*/
#ifndef __ASSEMBLY__
struct hv_trap_trace_entry {
unsigned char type; /* Hypervisor or guest entry? */
unsigned char hpstate; /* Hyper-privileged state */
unsigned char tl; /* Trap level */
unsigned char gl; /* Global register level */
unsigned short tt; /* Trap type */
unsigned short tag; /* Extended trap identifier */
unsigned long tstate; /* Trap state */
unsigned long tick; /* Tick */
unsigned long tpc; /* Trap PC */
unsigned long f1; /* Entry specific */
unsigned long f2; /* Entry specific */
unsigned long f3; /* Entry specific */
unsigned long f4; /* Entry specific */
};
#endif
#define HV_TRAP_TRACE_ENTRY_TYPE 0x00
#define HV_TRAP_TRACE_ENTRY_HPSTATE 0x01
#define HV_TRAP_TRACE_ENTRY_TL 0x02
#define HV_TRAP_TRACE_ENTRY_GL 0x03
#define HV_TRAP_TRACE_ENTRY_TT 0x04
#define HV_TRAP_TRACE_ENTRY_TAG 0x06
#define HV_TRAP_TRACE_ENTRY_TSTATE 0x08
#define HV_TRAP_TRACE_ENTRY_TICK 0x10
#define HV_TRAP_TRACE_ENTRY_TPC 0x18
#define HV_TRAP_TRACE_ENTRY_F1 0x20
#define HV_TRAP_TRACE_ENTRY_F2 0x28
#define HV_TRAP_TRACE_ENTRY_F3 0x30
#define HV_TRAP_TRACE_ENTRY_F4 0x38
/* The type field is encoded as follows. */
#define HV_TRAP_TYPE_UNDEF 0x00 /* Entry content undefined */
#define HV_TRAP_TYPE_HV 0x01 /* Hypervisor trap entry */
#define HV_TRAP_TYPE_GUEST 0xff /* Added via ttrace_addentry() */
/* ttrace_buf_conf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TTRACE_BUF_CONF
* ARG0: real address
* ARG1: number of entries
* RET0: status
* RET1: number of entries
* ERRORS: ENORADDR Invalid real address
* EINVAL Size is too small
* EBADALIGN Real address not aligned on 64-byte boundary
*
* Requests hypervisor trap tracing and declares a virtual CPU's trap
* trace buffer to the hypervisor. The real address supplies the real
* base address of the trap trace queue and must be 64-byte aligned.
* Specifying a value of 0 for the number of entries disables trap
* tracing for the calling virtual CPU. The buffer allocated must be
* sized for a power of two number of 64-byte trap trace entries plus
* an initial 64-byte control structure.
*
* This may be invoked any number of times so that a virtual CPU may
* relocate a trap trace buffer or create "snapshots" of information.
*
* If the real address is illegal or badly aligned, then trap tracing
* is disabled and an error is returned.
*
* Upon failure with EINVAL, this service call returns in RET1 the
* minimum number of buffer entries required. Upon other failures
* RET1 is undefined.
*/
#define HV_FAST_TTRACE_BUF_CONF 0x90
/* ttrace_buf_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TTRACE_BUF_INFO
* RET0: status
* RET1: real address
* RET2: size
* ERRORS: None defined.
*
* Returns the size and location of the previously declared trap-trace
* buffer. In the event that no buffer was previously defined, or the
* buffer is disabled, this call will return a size of zero bytes.
*/
#define HV_FAST_TTRACE_BUF_INFO 0x91
/* ttrace_enable()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TTRACE_ENABLE
* ARG0: enable
* RET0: status
* RET1: previous enable state
* ERRORS: EINVAL No trap trace buffer currently defined
*
* Enable or disable trap tracing, and return the previous enabled
* state in RET1. Future systems may define various flags for the
* enable argument (ARG0), for the moment a guest should pass
* "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all
* tracing - which will ensure future compatibility.
*/
#define HV_FAST_TTRACE_ENABLE 0x92
/* ttrace_freeze()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_TTRACE_FREEZE
* ARG0: freeze
* RET0: status
* RET1: previous freeze state
* ERRORS: EINVAL No trap trace buffer currently defined
*
* Freeze or unfreeze trap tracing, returning the previous freeze
* state in RET1. A guest should pass a non-zero value to freeze and
* a zero value to unfreeze all tracing. The returned previous state
* is 0 for not frozen and 1 for frozen.
*/
#define HV_FAST_TTRACE_FREEZE 0x93
/* ttrace_addentry()
* TRAP: HV_TTRACE_ADDENTRY_TRAP
* ARG0: tag (16-bits)
* ARG1: data word 0
* ARG2: data word 1
* ARG3: data word 2
* ARG4: data word 3
* RET0: status
* ERRORS: EINVAL No trap trace buffer currently defined
*
* Add an entry to the trap trace buffer. Upon return only ARG0/RET0
* is modified - none of the other registers holding arguments are
* volatile across this hypervisor service.
*/
/* Core dump services.
*
* Since the hypervisor viraulizes and thus obscures a lot of the
* physical machine layout and state, traditional OS crash dumps can
* be difficult to diagnose especially when the problem is a
* configuration error of some sort.
*
* The dump services provide an opaque buffer into which the
* hypervisor can place it's internal state in order to assist in
* debugging such situations. The contents are opaque and extremely
* platform and hypervisor implementation specific. The guest, during
* a core dump, requests that the hypervisor update any information in
* the dump buffer in preparation to being dumped as part of the
* domain's memory image.
*/
/* dump_buf_update()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_DUMP_BUF_UPDATE
* ARG0: real address
* ARG1: size
* RET0: status
* RET1: required size of dump buffer
* ERRORS: ENORADDR Invalid real address
* EBADALIGN Real address is not aligned on a 64-byte
* boundary
* EINVAL Size is non-zero but less than minimum size
* required
* ENOTSUPPORTED Operation not supported on current logical
* domain
*
* Declare a domain dump buffer to the hypervisor. The real address
* provided for the domain dump buffer must be 64-byte aligned. The
* size specifies the size of the dump buffer and may be larger than
* the minimum size specified in the machine description. The
* hypervisor will fill the dump buffer with opaque data.
*
* Note: A guest may elect to include dump buffer contents as part of a crash
* dump to assist with debugging. This function may be called any number
* of times so that a guest may relocate a dump buffer, or create
* "snapshots" of any dump-buffer information. Each call to
* dump_buf_update() atomically declares the new dump buffer to the
* hypervisor.
*
* A specified size of 0 unconfigures the dump buffer. If the real
* address is illegal or badly aligned, then any currently active dump
* buffer is disabled and an error is returned.
*
* In the event that the call fails with EINVAL, RET1 contains the
* minimum size requires by the hypervisor for a valid dump buffer.
*/
#define HV_FAST_DUMP_BUF_UPDATE 0x94
/* dump_buf_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_DUMP_BUF_INFO
* RET0: status
* RET1: real address of current dump buffer
* RET2: size of current dump buffer
* ERRORS: No errors defined.
*
* Return the currently configures dump buffer description. A
* returned size of 0 bytes indicates an undefined dump buffer. In
* this case the return address in RET1 is undefined.
*/
#define HV_FAST_DUMP_BUF_INFO 0x95
/* Device interrupt services.
*
* Device interrupts are allocated to system bus bridges by the hypervisor,
* and described to OBP in the machine description. OBP then describes
* these interrupts to the OS via properties in the device tree.
*
* Terminology:
*
* cpuid Unique opaque value which represents a target cpu.
*
* devhandle Device handle. It uniquely identifies a device, and
* consistes of the lower 28-bits of the hi-cell of the
* first entry of the device's "reg" property in the
* OBP device tree.
*
* devino Device interrupt number. Specifies the relative
* interrupt number within the device. The unique
* combination of devhandle and devino are used to
* identify a specific device interrupt.
*
* Note: The devino value is the same as the values in the
* "interrupts" property or "interrupt-map" property
* in the OBP device tree for that device.
*
* sysino System interrupt number. A 64-bit unsigned interger
* representing a unique interrupt within a virtual
* machine.
*
* intr_state A flag representing the interrupt state for a given
* sysino. The state values are defined below.
*
* intr_enabled A flag representing the 'enabled' state for a given
* sysino. The enable values are defined below.
*/
#define HV_INTR_STATE_IDLE 0 /* Nothing pending */
#define HV_INTR_STATE_RECEIVED 1 /* Interrupt received by hardware */
#define HV_INTR_STATE_DELIVERED 2 /* Interrupt delivered to queue */
#define HV_INTR_DISABLED 0 /* sysino not enabled */
#define HV_INTR_ENABLED 1 /* sysino enabled */
/* intr_devino_to_sysino()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_DEVINO2SYSINO
* ARG0: devhandle
* ARG1: devino
* RET0: status
* RET1: sysino
* ERRORS: EINVAL Invalid devhandle/devino
*
* Converts a device specific interrupt number of the given
* devhandle/devino into a system specific ino (sysino).
*/
#define HV_FAST_INTR_DEVINO2SYSINO 0xa0
#ifndef __ASSEMBLY__
unsigned long sun4v_devino_to_sysino(unsigned long devhandle,
unsigned long devino);
#endif
/* intr_getenabled()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_GETENABLED
* ARG0: sysino
* RET0: status
* RET1: intr_enabled (HV_INTR_{DISABLED,ENABLED})
* ERRORS: EINVAL Invalid sysino
*
* Returns interrupt enabled state in RET1 for the interrupt defined
* by the given sysino.
*/
#define HV_FAST_INTR_GETENABLED 0xa1
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_getenabled(unsigned long sysino);
#endif
/* intr_setenabled()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_SETENABLED
* ARG0: sysino
* ARG1: intr_enabled (HV_INTR_{DISABLED,ENABLED})
* RET0: status
* ERRORS: EINVAL Invalid sysino or intr_enabled value
*
* Set the 'enabled' state of the interrupt sysino.
*/
#define HV_FAST_INTR_SETENABLED 0xa2
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_setenabled(unsigned long sysino,
unsigned long intr_enabled);
#endif
/* intr_getstate()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_GETSTATE
* ARG0: sysino
* RET0: status
* RET1: intr_state (HV_INTR_STATE_*)
* ERRORS: EINVAL Invalid sysino
*
* Returns current state of the interrupt defined by the given sysino.
*/
#define HV_FAST_INTR_GETSTATE 0xa3
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_getstate(unsigned long sysino);
#endif
/* intr_setstate()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_SETSTATE
* ARG0: sysino
* ARG1: intr_state (HV_INTR_STATE_*)
* RET0: status
* ERRORS: EINVAL Invalid sysino or intr_state value
*
* Sets the current state of the interrupt described by the given sysino
* value.
*
* Note: Setting the state to HV_INTR_STATE_IDLE clears any pending
* interrupt for sysino.
*/
#define HV_FAST_INTR_SETSTATE 0xa4
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state);
#endif
/* intr_gettarget()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_GETTARGET
* ARG0: sysino
* RET0: status
* RET1: cpuid
* ERRORS: EINVAL Invalid sysino
*
* Returns CPU that is the current target of the interrupt defined by
* the given sysino. The CPU value returned is undefined if the target
* has not been set via intr_settarget().
*/
#define HV_FAST_INTR_GETTARGET 0xa5
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_gettarget(unsigned long sysino);
#endif
/* intr_settarget()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_INTR_SETTARGET
* ARG0: sysino
* ARG1: cpuid
* RET0: status
* ERRORS: EINVAL Invalid sysino
* ENOCPU Invalid cpuid
*
* Set the target CPU for the interrupt defined by the given sysino.
*/
#define HV_FAST_INTR_SETTARGET 0xa6
#ifndef __ASSEMBLY__
unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid);
#endif
/* vintr_get_cookie()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_GET_COOKIE
* ARG0: device handle
* ARG1: device ino
* RET0: status
* RET1: cookie
*/
#define HV_FAST_VINTR_GET_COOKIE 0xa7
/* vintr_set_cookie()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_SET_COOKIE
* ARG0: device handle
* ARG1: device ino
* ARG2: cookie
* RET0: status
*/
#define HV_FAST_VINTR_SET_COOKIE 0xa8
/* vintr_get_valid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_GET_VALID
* ARG0: device handle
* ARG1: device ino
* RET0: status
* RET1: valid state
*/
#define HV_FAST_VINTR_GET_VALID 0xa9
/* vintr_set_valid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_SET_VALID
* ARG0: device handle
* ARG1: device ino
* ARG2: valid state
* RET0: status
*/
#define HV_FAST_VINTR_SET_VALID 0xaa
/* vintr_get_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_GET_STATE
* ARG0: device handle
* ARG1: device ino
* RET0: status
* RET1: state
*/
#define HV_FAST_VINTR_GET_STATE 0xab
/* vintr_set_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_SET_STATE
* ARG0: device handle
* ARG1: device ino
* ARG2: state
* RET0: status
*/
#define HV_FAST_VINTR_SET_STATE 0xac
/* vintr_get_target()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_GET_TARGET
* ARG0: device handle
* ARG1: device ino
* RET0: status
* RET1: cpuid
*/
#define HV_FAST_VINTR_GET_TARGET 0xad
/* vintr_set_target()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_VINTR_SET_TARGET
* ARG0: device handle
* ARG1: device ino
* ARG2: cpuid
* RET0: status
*/
#define HV_FAST_VINTR_SET_TARGET 0xae
#ifndef __ASSEMBLY__
unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long *cookie);
unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long cookie);
unsigned long sun4v_vintr_get_valid(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long *valid);
unsigned long sun4v_vintr_set_valid(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long valid);
unsigned long sun4v_vintr_get_state(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long *state);
unsigned long sun4v_vintr_set_state(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long state);
unsigned long sun4v_vintr_get_target(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long *cpuid);
unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
unsigned long dev_ino,
unsigned long cpuid);
#endif
/* PCI IO services.
*
* See the terminology descriptions in the device interrupt services
* section above as those apply here too. Here are terminology
* definitions specific to these PCI IO services:
*
* tsbnum TSB number. Indentifies which io-tsb is used.
* For this version of the specification, tsbnum
* must be zero.
*
* tsbindex TSB index. Identifies which entry in the TSB
* is used. The first entry is zero.
*
* tsbid A 64-bit aligned data structure which contains
* a tsbnum and a tsbindex. Bits 63:32 contain the
* tsbnum and bits 31:00 contain the tsbindex.
*
* Use the HV_PCI_TSBID() macro to construct such
* values.
*
* io_attributes IO attributes for IOMMU mappings. One of more
* of the attritbute bits are stores in a 64-bit
* value. The values are defined below.
*
* r_addr 64-bit real address
*
* pci_device PCI device address. A PCI device address identifies
* a specific device on a specific PCI bus segment.
* A PCI device address ia a 32-bit unsigned integer
* with the following format:
*
* 00000000.bbbbbbbb.dddddfff.00000000
*
* Use the HV_PCI_DEVICE_BUILD() macro to construct
* such values.
*
* pci_config_offset
* PCI configureation space offset. For conventional
* PCI a value between 0 and 255. For extended
* configuration space, a value between 0 and 4095.
*
* Note: For PCI configuration space accesses, the offset
* must be aligned to the access size.
*
* error_flag A return value which specifies if the action succeeded
* or failed. 0 means no error, non-0 means some error
* occurred while performing the service.
*
* io_sync_direction
* Direction definition for pci_dma_sync(), defined
* below in HV_PCI_SYNC_*.
*
* io_page_list A list of io_page_addresses, an io_page_address is
* a real address.
*
* io_page_list_p A pointer to an io_page_list.
*
* "size based byte swap" - Some functions do size based byte swapping
* which allows sw to access pointers and
* counters in native form when the processor
* operates in a different endianness than the
* IO bus. Size-based byte swapping converts a
* multi-byte field between big-endian and
* little-endian format.
*/
#define HV_PCI_MAP_ATTR_READ 0x01
#define HV_PCI_MAP_ATTR_WRITE 0x02
#define HV_PCI_MAP_ATTR_RELAXED_ORDER 0x04
#define HV_PCI_DEVICE_BUILD(b,d,f) \
((((b) & 0xff) << 16) | \
(((d) & 0x1f) << 11) | \
(((f) & 0x07) << 8))
#define HV_PCI_TSBID(__tsb_num, __tsb_index) \
((((u64)(__tsb_num)) << 32UL) | ((u64)(__tsb_index)))
#define HV_PCI_SYNC_FOR_DEVICE 0x01
#define HV_PCI_SYNC_FOR_CPU 0x02
/* pci_iommu_map()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOMMU_MAP
* ARG0: devhandle
* ARG1: tsbid
* ARG2: #ttes
* ARG3: io_attributes
* ARG4: io_page_list_p
* RET0: status
* RET1: #ttes mapped
* ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex/io_attributes
* EBADALIGN Improperly aligned real address
* ENORADDR Invalid real address
*
* Create IOMMU mappings in the sun4v device defined by the given
* devhandle. The mappings are created in the TSB defined by the
* tsbnum component of the given tsbid. The first mapping is created
* in the TSB i ndex defined by the tsbindex component of the given tsbid.
* The call creates up to #ttes mappings, the first one at tsbnum, tsbindex,
* the second at tsbnum, tsbindex + 1, etc.
*
* All mappings are created with the attributes defined by the io_attributes
* argument. The page mapping addresses are described in the io_page_list
* defined by the given io_page_list_p, which is a pointer to the io_page_list.
* The first entry in the io_page_list is the address for the first iotte, the
* 2nd for the 2nd iotte, and so on.
*
* Each io_page_address in the io_page_list must be appropriately aligned.
* #ttes must be greater than zero. For this version of the spec, the tsbnum
* component of the given tsbid must be zero.
*
* Returns the actual number of mappings creates, which may be less than
* or equal to the argument #ttes. If the function returns a value which
* is less than the #ttes, the caller may continus to call the function with
* an updated tsbid, #ttes, io_page_list_p arguments until all pages are
* mapped.
*
* Note: This function does not imply an iotte cache flush. The guest must
* demap an entry before re-mapping it.
*/
#define HV_FAST_PCI_IOMMU_MAP 0xb0
/* pci_iommu_demap()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOMMU_DEMAP
* ARG0: devhandle
* ARG1: tsbid
* ARG2: #ttes
* RET0: status
* RET1: #ttes demapped
* ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex
*
* Demap and flush IOMMU mappings in the device defined by the given
* devhandle. Demaps up to #ttes entries in the TSB defined by the tsbnum
* component of the given tsbid, starting at the TSB index defined by the
* tsbindex component of the given tsbid.
*
* For this version of the spec, the tsbnum of the given tsbid must be zero.
* #ttes must be greater than zero.
*
* Returns the actual number of ttes demapped, which may be less than or equal
* to the argument #ttes. If #ttes demapped is less than #ttes, the caller
* may continue to call this function with updated tsbid and #ttes arguments
* until all pages are demapped.
*
* Note: Entries do not have to be mapped to be demapped. A demap of an
* unmapped page will flush the entry from the tte cache.
*/
#define HV_FAST_PCI_IOMMU_DEMAP 0xb1
/* pci_iommu_getmap()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOMMU_GETMAP
* ARG0: devhandle
* ARG1: tsbid
* RET0: status
* RET1: io_attributes
* RET2: real address
* ERRORS: EINVAL Invalid devhandle/tsbnum/tsbindex
* ENOMAP Mapping is not valid, no translation exists
*
* Read and return the mapping in the device described by the given devhandle
* and tsbid. If successful, the io_attributes shall be returned in RET1
* and the page address of the mapping shall be returned in RET2.
*
* For this version of the spec, the tsbnum component of the given tsbid
* must be zero.
*/
#define HV_FAST_PCI_IOMMU_GETMAP 0xb2
/* pci_iommu_getbypass()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOMMU_GETBYPASS
* ARG0: devhandle
* ARG1: real address
* ARG2: io_attributes
* RET0: status
* RET1: io_addr
* ERRORS: EINVAL Invalid devhandle/io_attributes
* ENORADDR Invalid real address
* ENOTSUPPORTED Function not supported in this implementation.
*
* Create a "special" mapping in the device described by the given devhandle,
* for the given real address and attributes. Return the IO address in RET1
* if successful.
*/
#define HV_FAST_PCI_IOMMU_GETBYPASS 0xb3
/* pci_config_get()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_CONFIG_GET
* ARG0: devhandle
* ARG1: pci_device
* ARG2: pci_config_offset
* ARG3: size
* RET0: status
* RET1: error_flag
* RET2: data
* ERRORS: EINVAL Invalid devhandle/pci_device/offset/size
* EBADALIGN pci_config_offset not size aligned
* ENOACCESS Access to this offset is not permitted
*
* Read PCI configuration space for the adapter described by the given
* devhandle. Read size (1, 2, or 4) bytes of data from the given
* pci_device, at pci_config_offset from the beginning of the device's
* configuration space. If there was no error, RET1 is set to zero and
* RET2 is set to the data read. Insignificant bits in RET2 are not
* guaranteed to have any specific value and therefore must be ignored.
*
* The data returned in RET2 is size based byte swapped.
*
* If an error occurs during the read, set RET1 to a non-zero value. The
* given pci_config_offset must be 'size' aligned.
*/
#define HV_FAST_PCI_CONFIG_GET 0xb4
/* pci_config_put()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_CONFIG_PUT
* ARG0: devhandle
* ARG1: pci_device
* ARG2: pci_config_offset
* ARG3: size
* ARG4: data
* RET0: status
* RET1: error_flag
* ERRORS: EINVAL Invalid devhandle/pci_device/offset/size
* EBADALIGN pci_config_offset not size aligned
* ENOACCESS Access to this offset is not permitted
*
* Write PCI configuration space for the adapter described by the given
* devhandle. Write size (1, 2, or 4) bytes of data in a single operation,
* at pci_config_offset from the beginning of the device's configuration
* space. The data argument contains the data to be written to configuration
* space. Prior to writing, the data is size based byte swapped.
*
* If an error occurs during the write access, do not generate an error
* report, do set RET1 to a non-zero value. Otherwise RET1 is zero.
* The given pci_config_offset must be 'size' aligned.
*
* This function is permitted to read from offset zero in the configuration
* space described by the given pci_device if necessary to ensure that the
* write access to config space completes.
*/
#define HV_FAST_PCI_CONFIG_PUT 0xb5
/* pci_peek()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_PEEK
* ARG0: devhandle
* ARG1: real address
* ARG2: size
* RET0: status
* RET1: error_flag
* RET2: data
* ERRORS: EINVAL Invalid devhandle or size
* EBADALIGN Improperly aligned real address
* ENORADDR Bad real address
* ENOACCESS Guest access prohibited
*
* Attempt to read the IO address given by the given devhandle, real address,
* and size. Size must be 1, 2, 4, or 8. The read is performed as a single
* access operation using the given size. If an error occurs when reading
* from the given location, do not generate an error report, but return a
* non-zero value in RET1. If the read was successful, return zero in RET1
* and return the actual data read in RET2. The data returned is size based
* byte swapped.
*
* Non-significant bits in RET2 are not guaranteed to have any specific value
* and therefore must be ignored. If RET1 is returned as non-zero, the data
* value is not guaranteed to have any specific value and should be ignored.
*
* The caller must have permission to read from the given devhandle, real
* address, which must be an IO address. The argument real address must be a
* size aligned address.
*
* The hypervisor implementation of this function must block access to any
* IO address that the guest does not have explicit permission to access.
*/
#define HV_FAST_PCI_PEEK 0xb6
/* pci_poke()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_POKE
* ARG0: devhandle
* ARG1: real address
* ARG2: size
* ARG3: data
* ARG4: pci_device
* RET0: status
* RET1: error_flag
* ERRORS: EINVAL Invalid devhandle, size, or pci_device
* EBADALIGN Improperly aligned real address
* ENORADDR Bad real address
* ENOACCESS Guest access prohibited
* ENOTSUPPORTED Function is not supported by implementation
*
* Attempt to write data to the IO address given by the given devhandle,
* real address, and size. Size must be 1, 2, 4, or 8. The write is
* performed as a single access operation using the given size. Prior to
* writing the data is size based swapped.
*
* If an error occurs when writing to the given location, do not generate an
* error report, but return a non-zero value in RET1. If the write was
* successful, return zero in RET1.
*
* pci_device describes the configuration address of the device being
* written to. The implementation may safely read from offset 0 with
* the configuration space of the device described by devhandle and
* pci_device in order to guarantee that the write portion of the operation
* completes
*
* Any error that occurs due to the read shall be reported using the normal
* error reporting mechanisms .. the read error is not suppressed.
*
* The caller must have permission to write to the given devhandle, real
* address, which must be an IO address. The argument real address must be a
* size aligned address. The caller must have permission to read from
* the given devhandle, pci_device cofiguration space offset 0.
*
* The hypervisor implementation of this function must block access to any
* IO address that the guest does not have explicit permission to access.
*/
#define HV_FAST_PCI_POKE 0xb7
/* pci_dma_sync()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_DMA_SYNC
* ARG0: devhandle
* ARG1: real address
* ARG2: size
* ARG3: io_sync_direction
* RET0: status
* RET1: #synced
* ERRORS: EINVAL Invalid devhandle or io_sync_direction
* ENORADDR Bad real address
*
* Synchronize a memory region described by the given real address and size,
* for the device defined by the given devhandle using the direction(s)
* defined by the given io_sync_direction. The argument size is the size of
* the memory region in bytes.
*
* Return the actual number of bytes synchronized in the return value #synced,
* which may be less than or equal to the argument size. If the return
* value #synced is less than size, the caller must continue to call this
* function with updated real address and size arguments until the entire
* memory region is synchronized.
*/
#define HV_FAST_PCI_DMA_SYNC 0xb8
/* PCI MSI services. */
#define HV_MSITYPE_MSI32 0x00
#define HV_MSITYPE_MSI64 0x01
#define HV_MSIQSTATE_IDLE 0x00
#define HV_MSIQSTATE_ERROR 0x01
#define HV_MSIQ_INVALID 0x00
#define HV_MSIQ_VALID 0x01
#define HV_MSISTATE_IDLE 0x00
#define HV_MSISTATE_DELIVERED 0x01
#define HV_MSIVALID_INVALID 0x00
#define HV_MSIVALID_VALID 0x01
#define HV_PCIE_MSGTYPE_PME_MSG 0x18
#define HV_PCIE_MSGTYPE_PME_ACK_MSG 0x1b
#define HV_PCIE_MSGTYPE_CORR_MSG 0x30
#define HV_PCIE_MSGTYPE_NONFATAL_MSG 0x31
#define HV_PCIE_MSGTYPE_FATAL_MSG 0x33
#define HV_MSG_INVALID 0x00
#define HV_MSG_VALID 0x01
/* pci_msiq_conf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_CONF
* ARG0: devhandle
* ARG1: msiqid
* ARG2: real address
* ARG3: number of entries
* RET0: status
* ERRORS: EINVAL Invalid devhandle, msiqid or nentries
* EBADALIGN Improperly aligned real address
* ENORADDR Bad real address
*
* Configure the MSI queue given by the devhandle and msiqid arguments,
* and to be placed at the given real address and be of the given
* number of entries. The real address must be aligned exactly to match
* the queue size. Each queue entry is 64-bytes long, so f.e. a 32 entry
* queue must be aligned on a 2048 byte real address boundary. The MSI-EQ
* Head and Tail are initialized so that the MSI-EQ is 'empty'.
*
* Implementation Note: Certain implementations have fixed sized queues. In
* that case, number of entries must contain the correct
* value.
*/
#define HV_FAST_PCI_MSIQ_CONF 0xc0
/* pci_msiq_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_INFO
* ARG0: devhandle
* ARG1: msiqid
* RET0: status
* RET1: real address
* RET2: number of entries
* ERRORS: EINVAL Invalid devhandle or msiqid
*
* Return the configuration information for the MSI queue described
* by the given devhandle and msiqid. The base address of the queue
* is returned in ARG1 and the number of entries is returned in ARG2.
* If the queue is unconfigured, the real address is undefined and the
* number of entries will be returned as zero.
*/
#define HV_FAST_PCI_MSIQ_INFO 0xc1
/* pci_msiq_getvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_GETVALID
* ARG0: devhandle
* ARG1: msiqid
* RET0: status
* RET1: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID)
* ERRORS: EINVAL Invalid devhandle or msiqid
*
* Get the valid state of the MSI-EQ described by the given devhandle and
* msiqid.
*/
#define HV_FAST_PCI_MSIQ_GETVALID 0xc2
/* pci_msiq_setvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_SETVALID
* ARG0: devhandle
* ARG1: msiqid
* ARG2: msiqvalid (HV_MSIQ_VALID or HV_MSIQ_INVALID)
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msiqid or msiqvalid
* value or MSI EQ is uninitialized
*
* Set the valid state of the MSI-EQ described by the given devhandle and
* msiqid to the given msiqvalid.
*/
#define HV_FAST_PCI_MSIQ_SETVALID 0xc3
/* pci_msiq_getstate()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_GETSTATE
* ARG0: devhandle
* ARG1: msiqid
* RET0: status
* RET1: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR)
* ERRORS: EINVAL Invalid devhandle or msiqid
*
* Get the state of the MSI-EQ described by the given devhandle and
* msiqid.
*/
#define HV_FAST_PCI_MSIQ_GETSTATE 0xc4
/* pci_msiq_getvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_GETVALID
* ARG0: devhandle
* ARG1: msiqid
* ARG2: msiqstate (HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR)
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msiqid or msiqstate
* value or MSI EQ is uninitialized
*
* Set the state of the MSI-EQ described by the given devhandle and
* msiqid to the given msiqvalid.
*/
#define HV_FAST_PCI_MSIQ_SETSTATE 0xc5
/* pci_msiq_gethead()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_GETHEAD
* ARG0: devhandle
* ARG1: msiqid
* RET0: status
* RET1: msiqhead
* ERRORS: EINVAL Invalid devhandle or msiqid
*
* Get the current MSI EQ queue head for the MSI-EQ described by the
* given devhandle and msiqid.
*/
#define HV_FAST_PCI_MSIQ_GETHEAD 0xc6
/* pci_msiq_sethead()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_SETHEAD
* ARG0: devhandle
* ARG1: msiqid
* ARG2: msiqhead
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msiqid or msiqhead,
* or MSI EQ is uninitialized
*
* Set the current MSI EQ queue head for the MSI-EQ described by the
* given devhandle and msiqid.
*/
#define HV_FAST_PCI_MSIQ_SETHEAD 0xc7
/* pci_msiq_gettail()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSIQ_GETTAIL
* ARG0: devhandle
* ARG1: msiqid
* RET0: status
* RET1: msiqtail
* ERRORS: EINVAL Invalid devhandle or msiqid
*
* Get the current MSI EQ queue tail for the MSI-EQ described by the
* given devhandle and msiqid.
*/
#define HV_FAST_PCI_MSIQ_GETTAIL 0xc8
/* pci_msi_getvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_GETVALID
* ARG0: devhandle
* ARG1: msinum
* RET0: status
* RET1: msivalidstate
* ERRORS: EINVAL Invalid devhandle or msinum
*
* Get the current valid/enabled state for the MSI defined by the
* given devhandle and msinum.
*/
#define HV_FAST_PCI_MSI_GETVALID 0xc9
/* pci_msi_setvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_SETVALID
* ARG0: devhandle
* ARG1: msinum
* ARG2: msivalidstate
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msinum or msivalidstate
*
* Set the current valid/enabled state for the MSI defined by the
* given devhandle and msinum.
*/
#define HV_FAST_PCI_MSI_SETVALID 0xca
/* pci_msi_getmsiq()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_GETMSIQ
* ARG0: devhandle
* ARG1: msinum
* RET0: status
* RET1: msiqid
* ERRORS: EINVAL Invalid devhandle or msinum or MSI is unbound
*
* Get the MSI EQ that the MSI defined by the given devhandle and
* msinum is bound to.
*/
#define HV_FAST_PCI_MSI_GETMSIQ 0xcb
/* pci_msi_setmsiq()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_SETMSIQ
* ARG0: devhandle
* ARG1: msinum
* ARG2: msitype
* ARG3: msiqid
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msinum or msiqid
*
* Set the MSI EQ that the MSI defined by the given devhandle and
* msinum is bound to.
*/
#define HV_FAST_PCI_MSI_SETMSIQ 0xcc
/* pci_msi_getstate()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_GETSTATE
* ARG0: devhandle
* ARG1: msinum
* RET0: status
* RET1: msistate
* ERRORS: EINVAL Invalid devhandle or msinum
*
* Get the state of the MSI defined by the given devhandle and msinum.
* If not initialized, return HV_MSISTATE_IDLE.
*/
#define HV_FAST_PCI_MSI_GETSTATE 0xcd
/* pci_msi_setstate()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSI_SETSTATE
* ARG0: devhandle
* ARG1: msinum
* ARG2: msistate
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msinum or msistate
*
* Set the state of the MSI defined by the given devhandle and msinum.
*/
#define HV_FAST_PCI_MSI_SETSTATE 0xce
/* pci_msg_getmsiq()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSG_GETMSIQ
* ARG0: devhandle
* ARG1: msgtype
* RET0: status
* RET1: msiqid
* ERRORS: EINVAL Invalid devhandle or msgtype
*
* Get the MSI EQ of the MSG defined by the given devhandle and msgtype.
*/
#define HV_FAST_PCI_MSG_GETMSIQ 0xd0
/* pci_msg_setmsiq()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSG_SETMSIQ
* ARG0: devhandle
* ARG1: msgtype
* ARG2: msiqid
* RET0: status
* ERRORS: EINVAL Invalid devhandle, msgtype, or msiqid
*
* Set the MSI EQ of the MSG defined by the given devhandle and msgtype.
*/
#define HV_FAST_PCI_MSG_SETMSIQ 0xd1
/* pci_msg_getvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSG_GETVALID
* ARG0: devhandle
* ARG1: msgtype
* RET0: status
* RET1: msgvalidstate
* ERRORS: EINVAL Invalid devhandle or msgtype
*
* Get the valid/enabled state of the MSG defined by the given
* devhandle and msgtype.
*/
#define HV_FAST_PCI_MSG_GETVALID 0xd2
/* pci_msg_setvalid()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_MSG_SETVALID
* ARG0: devhandle
* ARG1: msgtype
* ARG2: msgvalidstate
* RET0: status
* ERRORS: EINVAL Invalid devhandle or msgtype or msgvalidstate
*
* Set the valid/enabled state of the MSG defined by the given
* devhandle and msgtype.
*/
#define HV_FAST_PCI_MSG_SETVALID 0xd3
/* PCI IOMMU v2 definitions and services
*
* While the PCI IO definitions above is valid IOMMU v2 adds new PCI IO
* definitions and services.
*
* CTE Clump Table Entry. First level table entry in the ATU.
*
* pci_device_list
* A 32-bit aligned list of pci_devices.
*
* pci_device_listp
* real address of a pci_device_list. 32-bit aligned.
*
* iotte IOMMU translation table entry.
*
* iotte_attributes
* IO Attributes for IOMMU v2 mappings. In addition to
* read, write IOMMU v2 supports relax ordering
*
* io_page_list A 64-bit aligned list of real addresses. Each real
* address in an io_page_list must be properly aligned
* to the pagesize of the given IOTSB.
*
* io_page_list_p Real address of an io_page_list, 64-bit aligned.
*
* IOTSB IO Translation Storage Buffer. An aligned table of
* IOTTEs. Each IOTSB has a pagesize, table size, and
* virtual address associated with it that must match
* a pagesize and table size supported by the un-derlying
* hardware implementation. The alignment requirements
* for an IOTSB depend on the pagesize used for that IOTSB.
* Each IOTTE in an IOTSB maps one pagesize-sized page.
* The size of the IOTSB dictates how large of a virtual
* address space the IOTSB is capable of mapping.
*
* iotsb_handle An opaque identifier for an IOTSB. A devhandle plus
* iotsb_handle represents a binding of an IOTSB to a
* PCI root complex.
*
* iotsb_index Zero-based IOTTE number within an IOTSB.
*/
/* The index_count argument consists of two fields:
* bits 63:48 #iottes and bits 47:0 iotsb_index
*/
#define HV_PCI_IOTSB_INDEX_COUNT(__iottes, __iotsb_index) \
(((u64)(__iottes) << 48UL) | ((u64)(__iotsb_index)))
/* pci_iotsb_conf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_CONF
* ARG0: devhandle
* ARG1: r_addr
* ARG2: size
* ARG3: pagesize
* ARG4: iova
* RET0: status
* RET1: iotsb_handle
* ERRORS: EINVAL Invalid devhandle, size, iova, or pagesize
* EBADALIGN r_addr is not properly aligned
* ENORADDR r_addr is not a valid real address
* ETOOMANY No further IOTSBs may be configured
* EBUSY Duplicate devhandle, raddir, iova combination
*
* Create an IOTSB suitable for the PCI root complex identified by devhandle,
* for the DMA virtual address defined by the argument iova.
*
* r_addr is the properly aligned base address of the IOTSB and size is the
* IOTSB (table) size in bytes.The IOTSB is required to be zeroed prior to
* being configured. If it contains any values other than zeros then the
* behavior is undefined.
*
* pagesize is the size of each page in the IOTSB. Note that the combination of
* size (table size) and pagesize must be valid.
*
* virt is the DMA virtual address this IOTSB will map.
*
* If successful, the opaque 64-bit handle iotsb_handle is returned in ret1.
* Once configured, privileged access to the IOTSB memory is prohibited and
* creates undefined behavior. The only permitted access is indirect via these
* services.
*/
#define HV_FAST_PCI_IOTSB_CONF 0x190
/* pci_iotsb_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_INFO
* ARG0: devhandle
* ARG1: iotsb_handle
* RET0: status
* RET1: r_addr
* RET2: size
* RET3: pagesize
* RET4: iova
* RET5: #bound
* ERRORS: EINVAL Invalid devhandle or iotsb_handle
*
* This service returns configuration information about an IOTSB previously
* created with pci_iotsb_conf.
*
* iotsb_handle value 0 may be used with this service to inquire about the
* legacy IOTSB that may or may not exist. If the service succeeds, the return
* values describe the legacy IOTSB and I/O virtual addresses mapped by that
* table. However, the table base address r_addr may contain the value -1 which
* indicates a memory range that cannot be accessed or be reclaimed.
*
* The return value #bound contains the number of PCI devices that iotsb_handle
* is currently bound to.
*/
#define HV_FAST_PCI_IOTSB_INFO 0x191
/* pci_iotsb_unconf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_UNCONF
* ARG0: devhandle
* ARG1: iotsb_handle
* RET0: status
* ERRORS: EINVAL Invalid devhandle or iotsb_handle
* EBUSY The IOTSB is bound and may not be unconfigured
*
* This service unconfigures the IOTSB identified by the devhandle and
* iotsb_handle arguments, previously created with pci_iotsb_conf.
* The IOTSB must not be currently bound to any device or the service will fail
*
* If the call succeeds, iotsb_handle is no longer valid.
*/
#define HV_FAST_PCI_IOTSB_UNCONF 0x192
/* pci_iotsb_bind()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_BIND
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: pci_device
* RET0: status
* ERRORS: EINVAL Invalid devhandle, iotsb_handle, or pci_device
* EBUSY A PCI function is already bound to an IOTSB at the same
* address range as specified by devhandle, iotsb_handle.
*
* This service binds the PCI function specified by the argument pci_device to
* the IOTSB specified by the arguments devhandle and iotsb_handle.
*
* The PCI device function is bound to the specified IOTSB with the IOVA range
* specified when the IOTSB was configured via pci_iotsb_conf. If the function
* is already bound then it is unbound first.
*/
#define HV_FAST_PCI_IOTSB_BIND 0x193
/* pci_iotsb_unbind()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_UNBIND
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: pci_device
* RET0: status
* ERRORS: EINVAL Invalid devhandle, iotsb_handle, or pci_device
* ENOMAP The PCI function was not bound to the specified IOTSB
*
* This service unbinds the PCI device specified by the argument pci_device
* from the IOTSB identified * by the arguments devhandle and iotsb_handle.
*
* If the PCI device is not bound to the specified IOTSB then this service will
* fail with status ENOMAP
*/
#define HV_FAST_PCI_IOTSB_UNBIND 0x194
/* pci_iotsb_get_binding()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_GET_BINDING
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: iova
* RET0: status
* RET1: iotsb_handle
* ERRORS: EINVAL Invalid devhandle, pci_device, or iova
* ENOMAP The PCI function is not bound to an IOTSB at iova
*
* This service returns the IOTSB binding, iotsb_handle, for a given pci_device
* and DMA virtual address, iova.
*
* iova must be the base address of a DMA virtual address range as defined by
* the iommu-address-ranges property in the root complex device node defined
* by the argument devhandle.
*/
#define HV_FAST_PCI_IOTSB_GET_BINDING 0x195
/* pci_iotsb_map()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_MAP
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: index_count
* ARG3: iotte_attributes
* ARG4: io_page_list_p
* RET0: status
* RET1: #mapped
* ERRORS: EINVAL Invalid devhandle, iotsb_handle, #iottes,
* iotsb_index or iotte_attributes
* EBADALIGN Improperly aligned io_page_list_p or I/O page
* address in the I/O page list.
* ENORADDR Invalid io_page_list_p or I/O page address in
* the I/O page list.
*
* This service creates and flushes mappings in the IOTSB defined by the
* arguments devhandle, iotsb.
*
* The index_count argument consists of two fields. Bits 63:48 contain #iotte
* and bits 47:0 contain iotsb_index
*
* The first mapping is created in the IOTSB index specified by iotsb_index.
* Subsequent mappings are created at iotsb_index+1 and so on.
*
* The attributes of each mapping are defined by the argument iotte_attributes.
*
* The io_page_list_p specifies the real address of the 64-bit-aligned list of
* #iottes I/O page addresses. Each page address must be a properly aligned
* real address of a page to be mapped in the IOTSB. The first entry in the I/O
* page list contains the real address of the first page, the 2nd entry for the
* 2nd page, and so on.
*
* #iottes must be greater than zero.
*
* The return value #mapped is the actual number of mappings created, which may
* be less than or equal to the argument #iottes. If the function returns
* successfully with a #mapped value less than the requested #iottes then the
* caller should continue to invoke the service with updated iotsb_index,
* #iottes, and io_page_list_p arguments until all pages are mapped.
*
* This service must not be used to demap a mapping. In other words, all
* mappings must be valid and have one or both of the RW attribute bits set.
*
* Note:
* It is implementation-defined whether I/O page real address validity checking
* is done at time mappings are established or deferred until they are
* accessed.
*/
#define HV_FAST_PCI_IOTSB_MAP 0x196
/* pci_iotsb_map_one()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_MAP_ONE
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: iotsb_index
* ARG3: iotte_attributes
* ARG4: r_addr
* RET0: status
* ERRORS: EINVAL Invalid devhandle,iotsb_handle, iotsb_index
* or iotte_attributes
* EBADALIGN Improperly aligned r_addr
* ENORADDR Invalid r_addr
*
* This service creates and flushes a single mapping in the IOTSB defined by the
* arguments devhandle, iotsb.
*
* The mapping for the page at r_addr is created at the IOTSB index specified by
* iotsb_index with the attributes iotte_attributes.
*
* This service must not be used to demap a mapping. In other words, the mapping
* must be valid and have one or both of the RW attribute bits set.
*
* Note:
* It is implementation-defined whether I/O page real address validity checking
* is done at time mappings are established or deferred until they are
* accessed.
*/
#define HV_FAST_PCI_IOTSB_MAP_ONE 0x197
/* pci_iotsb_demap()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_DEMAP
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: iotsb_index
* ARG3: #iottes
* RET0: status
* RET1: #unmapped
* ERRORS: EINVAL Invalid devhandle, iotsb_handle, iotsb_index or #iottes
*
* This service unmaps and flushes up to #iottes mappings starting at index
* iotsb_index from the IOTSB defined by the arguments devhandle, iotsb.
*
* #iottes must be greater than zero.
*
* The actual number of IOTTEs unmapped is returned in #unmapped and may be less
* than or equal to the requested number of IOTTEs, #iottes.
*
* If #unmapped is less than #iottes, the caller should continue to invoke this
* service with updated iotsb_index and #iottes arguments until all pages are
* demapped.
*/
#define HV_FAST_PCI_IOTSB_DEMAP 0x198
/* pci_iotsb_getmap()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_GETMAP
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: iotsb_index
* RET0: status
* RET1: r_addr
* RET2: iotte_attributes
* ERRORS: EINVAL Invalid devhandle, iotsb_handle, or iotsb_index
* ENOMAP No mapping was found
*
* This service returns the mapping specified by index iotsb_index from the
* IOTSB defined by the arguments devhandle, iotsb.
*
* Upon success, the real address of the mapping shall be returned in
* r_addr and thethe IOTTE mapping attributes shall be returned in
* iotte_attributes.
*
* The return value iotte_attributes may not include optional features used in
* the call to create the mapping.
*/
#define HV_FAST_PCI_IOTSB_GETMAP 0x199
/* pci_iotsb_sync_mappings()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_PCI_IOTSB_SYNC_MAPPINGS
* ARG0: devhandle
* ARG1: iotsb_handle
* ARG2: iotsb_index
* ARG3: #iottes
* RET0: status
* RET1: #synced
* ERROS: EINVAL Invalid devhandle, iotsb_handle, iotsb_index, or #iottes
*
* This service synchronizes #iottes mappings starting at index iotsb_index in
* the IOTSB defined by the arguments devhandle, iotsb.
*
* #iottes must be greater than zero.
*
* The actual number of IOTTEs synchronized is returned in #synced, which may
* be less than or equal to the requested number, #iottes.
*
* Upon a successful return, #synced is less than #iottes, the caller should
* continue to invoke this service with updated iotsb_index and #iottes
* arguments until all pages are synchronized.
*/
#define HV_FAST_PCI_IOTSB_SYNC_MAPPINGS 0x19a
/* Logical Domain Channel services. */
#define LDC_CHANNEL_DOWN 0
#define LDC_CHANNEL_UP 1
#define LDC_CHANNEL_RESETTING 2
/* ldc_tx_qconf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_TX_QCONF
* ARG0: channel ID
* ARG1: real address base of queue
* ARG2: num entries in queue
* RET0: status
*
* Configure transmit queue for the LDC endpoint specified by the
* given channel ID, to be placed at the given real address, and
* be of the given num entries. Num entries must be a power of two.
* The real address base of the queue must be aligned on the queue
* size. Each queue entry is 64-bytes, so for example, a 32 entry
* queue must be aligned on a 2048 byte real address boundary.
*
* Upon configuration of a valid transmit queue the head and tail
* pointers are set to a hypervisor specific identical value indicating
* that the queue initially is empty.
*
* The endpoint's transmit queue is un-configured if num entries is zero.
*
* The maximum number of entries for each queue for a specific cpu may be
* determined from the machine description. A transmit queue may be
* specified even in the event that the LDC is down (peer endpoint has no
* receive queue specified). Transmission will begin as soon as the peer
* endpoint defines a receive queue.
*
* It is recommended that a guest wait for a transmit queue to empty prior
* to reconfiguring it, or un-configuring it. Re or un-configuring of a
* non-empty transmit queue behaves exactly as defined above, however it
* is undefined as to how many of the pending entries in the original queue
* will be delivered prior to the re-configuration taking effect.
* Furthermore, as the queue configuration causes a reset of the head and
* tail pointers there is no way for a guest to determine how many entries
* have been sent after the configuration operation.
*/
#define HV_FAST_LDC_TX_QCONF 0xe0
/* ldc_tx_qinfo()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_TX_QINFO
* ARG0: channel ID
* RET0: status
* RET1: real address base of queue
* RET2: num entries in queue
*
* Return the configuration info for the transmit queue of LDC endpoint
* defined by the given channel ID. The real address is the currently
* defined real address base of the defined queue, and num entries is the
* size of the queue in terms of number of entries.
*
* If the specified channel ID is a valid endpoint number, but no transmit
* queue has been defined this service will return success, but with num
* entries set to zero and the real address will have an undefined value.
*/
#define HV_FAST_LDC_TX_QINFO 0xe1
/* ldc_tx_get_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_TX_GET_STATE
* ARG0: channel ID
* RET0: status
* RET1: head offset
* RET2: tail offset
* RET3: channel state
*
* Return the transmit state, and the head and tail queue pointers, for
* the transmit queue of the LDC endpoint defined by the given channel ID.
* The head and tail values are the byte offset of the head and tail
* positions of the transmit queue for the specified endpoint.
*/
#define HV_FAST_LDC_TX_GET_STATE 0xe2
/* ldc_tx_set_qtail()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_TX_SET_QTAIL
* ARG0: channel ID
* ARG1: tail offset
* RET0: status
*
* Update the tail pointer for the transmit queue associated with the LDC
* endpoint defined by the given channel ID. The tail offset specified
* must be aligned on a 64 byte boundary, and calculated so as to increase
* the number of pending entries on the transmit queue. Any attempt to
* decrease the number of pending transmit queue entires is considered
* an invalid tail offset and will result in an EINVAL error.
*
* Since the tail of the transmit queue may not be moved backwards, the
* transmit queue may be flushed by configuring a new transmit queue,
* whereupon the hypervisor will configure the initial transmit head and
* tail pointers to be equal.
*/
#define HV_FAST_LDC_TX_SET_QTAIL 0xe3
/* ldc_rx_qconf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_RX_QCONF
* ARG0: channel ID
* ARG1: real address base of queue
* ARG2: num entries in queue
* RET0: status
*
* Configure receive queue for the LDC endpoint specified by the
* given channel ID, to be placed at the given real address, and
* be of the given num entries. Num entries must be a power of two.
* The real address base of the queue must be aligned on the queue
* size. Each queue entry is 64-bytes, so for example, a 32 entry
* queue must be aligned on a 2048 byte real address boundary.
*
* The endpoint's transmit queue is un-configured if num entries is zero.
*
* If a valid receive queue is specified for a local endpoint the LDC is
* in the up state for the purpose of transmission to this endpoint.
*
* The maximum number of entries for each queue for a specific cpu may be
* determined from the machine description.
*
* As receive queue configuration causes a reset of the queue's head and
* tail pointers there is no way for a gues to determine how many entries
* have been received between a preceding ldc_get_rx_state() API call
* and the completion of the configuration operation. It should be noted
* that datagram delivery is not guaranteed via domain channels anyway,
* and therefore any higher protocol should be resilient to datagram
* loss if necessary. However, to overcome this specific race potential
* it is recommended, for example, that a higher level protocol be employed
* to ensure either retransmission, or ensure that no datagrams are pending
* on the peer endpoint's transmit queue prior to the configuration process.
*/
#define HV_FAST_LDC_RX_QCONF 0xe4
/* ldc_rx_qinfo()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_RX_QINFO
* ARG0: channel ID
* RET0: status
* RET1: real address base of queue
* RET2: num entries in queue
*
* Return the configuration info for the receive queue of LDC endpoint
* defined by the given channel ID. The real address is the currently
* defined real address base of the defined queue, and num entries is the
* size of the queue in terms of number of entries.
*
* If the specified channel ID is a valid endpoint number, but no receive
* queue has been defined this service will return success, but with num
* entries set to zero and the real address will have an undefined value.
*/
#define HV_FAST_LDC_RX_QINFO 0xe5
/* ldc_rx_get_state()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_RX_GET_STATE
* ARG0: channel ID
* RET0: status
* RET1: head offset
* RET2: tail offset
* RET3: channel state
*
* Return the receive state, and the head and tail queue pointers, for
* the receive queue of the LDC endpoint defined by the given channel ID.
* The head and tail values are the byte offset of the head and tail
* positions of the receive queue for the specified endpoint.
*/
#define HV_FAST_LDC_RX_GET_STATE 0xe6
/* ldc_rx_set_qhead()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_RX_SET_QHEAD
* ARG0: channel ID
* ARG1: head offset
* RET0: status
*
* Update the head pointer for the receive queue associated with the LDC
* endpoint defined by the given channel ID. The head offset specified
* must be aligned on a 64 byte boundary, and calculated so as to decrease
* the number of pending entries on the receive queue. Any attempt to
* increase the number of pending receive queue entires is considered
* an invalid head offset and will result in an EINVAL error.
*
* The receive queue may be flushed by setting the head offset equal
* to the current tail offset.
*/
#define HV_FAST_LDC_RX_SET_QHEAD 0xe7
/* LDC Map Table Entry. Each slot is defined by a translation table
* entry, as specified by the LDC_MTE_* bits below, and a 64-bit
* hypervisor invalidation cookie.
*/
#define LDC_MTE_PADDR 0x0fffffffffffe000 /* pa[55:13] */
#define LDC_MTE_COPY_W 0x0000000000000400 /* copy write access */
#define LDC_MTE_COPY_R 0x0000000000000200 /* copy read access */
#define LDC_MTE_IOMMU_W 0x0000000000000100 /* IOMMU write access */
#define LDC_MTE_IOMMU_R 0x0000000000000080 /* IOMMU read access */
#define LDC_MTE_EXEC 0x0000000000000040 /* execute */
#define LDC_MTE_WRITE 0x0000000000000020 /* read */
#define LDC_MTE_READ 0x0000000000000010 /* write */
#define LDC_MTE_SZALL 0x000000000000000f /* page size bits */
#define LDC_MTE_SZ16GB 0x0000000000000007 /* 16GB page */
#define LDC_MTE_SZ2GB 0x0000000000000006 /* 2GB page */
#define LDC_MTE_SZ256MB 0x0000000000000005 /* 256MB page */
#define LDC_MTE_SZ32MB 0x0000000000000004 /* 32MB page */
#define LDC_MTE_SZ4MB 0x0000000000000003 /* 4MB page */
#define LDC_MTE_SZ512K 0x0000000000000002 /* 512K page */
#define LDC_MTE_SZ64K 0x0000000000000001 /* 64K page */
#define LDC_MTE_SZ8K 0x0000000000000000 /* 8K page */
#ifndef __ASSEMBLY__
struct ldc_mtable_entry {
unsigned long mte;
unsigned long cookie;
};
#endif
/* ldc_set_map_table()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_SET_MAP_TABLE
* ARG0: channel ID
* ARG1: table real address
* ARG2: num entries
* RET0: status
*
* Register the MTE table at the given table real address, with the
* specified num entries, for the LDC indicated by the given channel
* ID.
*/
#define HV_FAST_LDC_SET_MAP_TABLE 0xea
/* ldc_get_map_table()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_GET_MAP_TABLE
* ARG0: channel ID
* RET0: status
* RET1: table real address
* RET2: num entries
*
* Return the configuration of the current mapping table registered
* for the given channel ID.
*/
#define HV_FAST_LDC_GET_MAP_TABLE 0xeb
#define LDC_COPY_IN 0
#define LDC_COPY_OUT 1
/* ldc_copy()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_COPY
* ARG0: channel ID
* ARG1: LDC_COPY_* direction code
* ARG2: target real address
* ARG3: local real address
* ARG4: length in bytes
* RET0: status
* RET1: actual length in bytes
*/
#define HV_FAST_LDC_COPY 0xec
#define LDC_MEM_READ 1
#define LDC_MEM_WRITE 2
#define LDC_MEM_EXEC 4
/* ldc_mapin()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_MAPIN
* ARG0: channel ID
* ARG1: cookie
* RET0: status
* RET1: real address
* RET2: LDC_MEM_* permissions
*/
#define HV_FAST_LDC_MAPIN 0xed
/* ldc_unmap()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_UNMAP
* ARG0: real address
* RET0: status
*/
#define HV_FAST_LDC_UNMAP 0xee
/* ldc_revoke()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_LDC_REVOKE
* ARG0: channel ID
* ARG1: cookie
* ARG2: ldc_mtable_entry cookie
* RET0: status
*/
#define HV_FAST_LDC_REVOKE 0xef
#ifndef __ASSEMBLY__
unsigned long sun4v_ldc_tx_qconf(unsigned long channel,
unsigned long ra,
unsigned long num_entries);
unsigned long sun4v_ldc_tx_qinfo(unsigned long channel,
unsigned long *ra,
unsigned long *num_entries);
unsigned long sun4v_ldc_tx_get_state(unsigned long channel,
unsigned long *head_off,
unsigned long *tail_off,
unsigned long *chan_state);
unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel,
unsigned long tail_off);
unsigned long sun4v_ldc_rx_qconf(unsigned long channel,
unsigned long ra,
unsigned long num_entries);
unsigned long sun4v_ldc_rx_qinfo(unsigned long channel,
unsigned long *ra,
unsigned long *num_entries);
unsigned long sun4v_ldc_rx_get_state(unsigned long channel,
unsigned long *head_off,
unsigned long *tail_off,
unsigned long *chan_state);
unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel,
unsigned long head_off);
unsigned long sun4v_ldc_set_map_table(unsigned long channel,
unsigned long ra,
unsigned long num_entries);
unsigned long sun4v_ldc_get_map_table(unsigned long channel,
unsigned long *ra,
unsigned long *num_entries);
unsigned long sun4v_ldc_copy(unsigned long channel,
unsigned long dir_code,
unsigned long tgt_raddr,
unsigned long lcl_raddr,
unsigned long len,
unsigned long *actual_len);
unsigned long sun4v_ldc_mapin(unsigned long channel,
unsigned long cookie,
unsigned long *ra,
unsigned long *perm);
unsigned long sun4v_ldc_unmap(unsigned long ra);
unsigned long sun4v_ldc_revoke(unsigned long channel,
unsigned long cookie,
unsigned long mte_cookie);
#endif
/* Performance counter services. */
#define HV_PERF_JBUS_PERF_CTRL_REG 0x00
#define HV_PERF_JBUS_PERF_CNT_REG 0x01
#define HV_PERF_DRAM_PERF_CTRL_REG_0 0x02
#define HV_PERF_DRAM_PERF_CNT_REG_0 0x03
#define HV_PERF_DRAM_PERF_CTRL_REG_1 0x04
#define HV_PERF_DRAM_PERF_CNT_REG_1 0x05
#define HV_PERF_DRAM_PERF_CTRL_REG_2 0x06
#define HV_PERF_DRAM_PERF_CNT_REG_2 0x07
#define HV_PERF_DRAM_PERF_CTRL_REG_3 0x08
#define HV_PERF_DRAM_PERF_CNT_REG_3 0x09
/* get_perfreg()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_GET_PERFREG
* ARG0: performance reg number
* RET0: status
* RET1: performance reg value
* ERRORS: EINVAL Invalid performance register number
* ENOACCESS No access allowed to performance counters
*
* Read the value of the given DRAM/JBUS performance counter/control register.
*/
#define HV_FAST_GET_PERFREG 0x100
/* set_perfreg()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_SET_PERFREG
* ARG0: performance reg number
* ARG1: performance reg value
* RET0: status
* ERRORS: EINVAL Invalid performance register number
* ENOACCESS No access allowed to performance counters
*
* Write the given performance reg value to the given DRAM/JBUS
* performance counter/control register.
*/
#define HV_FAST_SET_PERFREG 0x101
#define HV_N2_PERF_SPARC_CTL 0x0
#define HV_N2_PERF_DRAM_CTL0 0x1
#define HV_N2_PERF_DRAM_CNT0 0x2
#define HV_N2_PERF_DRAM_CTL1 0x3
#define HV_N2_PERF_DRAM_CNT1 0x4
#define HV_N2_PERF_DRAM_CTL2 0x5
#define HV_N2_PERF_DRAM_CNT2 0x6
#define HV_N2_PERF_DRAM_CTL3 0x7
#define HV_N2_PERF_DRAM_CNT3 0x8
#define HV_FAST_N2_GET_PERFREG 0x104
#define HV_FAST_N2_SET_PERFREG 0x105
#ifndef __ASSEMBLY__
unsigned long sun4v_niagara_getperf(unsigned long reg,
unsigned long *val);
unsigned long sun4v_niagara_setperf(unsigned long reg,
unsigned long val);
unsigned long sun4v_niagara2_getperf(unsigned long reg,
unsigned long *val);
unsigned long sun4v_niagara2_setperf(unsigned long reg,
unsigned long val);
#endif
/* MMU statistics services.
*
* The hypervisor maintains MMU statistics and privileged code provides
* a buffer where these statistics can be collected. It is continually
* updated once configured. The layout is as follows:
*/
#ifndef __ASSEMBLY__
struct hv_mmu_statistics {
unsigned long immu_tsb_hits_ctx0_8k_tte;
unsigned long immu_tsb_ticks_ctx0_8k_tte;
unsigned long immu_tsb_hits_ctx0_64k_tte;
unsigned long immu_tsb_ticks_ctx0_64k_tte;
unsigned long __reserved1[2];
unsigned long immu_tsb_hits_ctx0_4mb_tte;
unsigned long immu_tsb_ticks_ctx0_4mb_tte;
unsigned long __reserved2[2];
unsigned long immu_tsb_hits_ctx0_256mb_tte;
unsigned long immu_tsb_ticks_ctx0_256mb_tte;
unsigned long __reserved3[4];
unsigned long immu_tsb_hits_ctxnon0_8k_tte;
unsigned long immu_tsb_ticks_ctxnon0_8k_tte;
unsigned long immu_tsb_hits_ctxnon0_64k_tte;
unsigned long immu_tsb_ticks_ctxnon0_64k_tte;
unsigned long __reserved4[2];
unsigned long immu_tsb_hits_ctxnon0_4mb_tte;
unsigned long immu_tsb_ticks_ctxnon0_4mb_tte;
unsigned long __reserved5[2];
unsigned long immu_tsb_hits_ctxnon0_256mb_tte;
unsigned long immu_tsb_ticks_ctxnon0_256mb_tte;
unsigned long __reserved6[4];
unsigned long dmmu_tsb_hits_ctx0_8k_tte;
unsigned long dmmu_tsb_ticks_ctx0_8k_tte;
unsigned long dmmu_tsb_hits_ctx0_64k_tte;
unsigned long dmmu_tsb_ticks_ctx0_64k_tte;
unsigned long __reserved7[2];
unsigned long dmmu_tsb_hits_ctx0_4mb_tte;
unsigned long dmmu_tsb_ticks_ctx0_4mb_tte;
unsigned long __reserved8[2];
unsigned long dmmu_tsb_hits_ctx0_256mb_tte;
unsigned long dmmu_tsb_ticks_ctx0_256mb_tte;
unsigned long __reserved9[4];
unsigned long dmmu_tsb_hits_ctxnon0_8k_tte;
unsigned long dmmu_tsb_ticks_ctxnon0_8k_tte;
unsigned long dmmu_tsb_hits_ctxnon0_64k_tte;
unsigned long dmmu_tsb_ticks_ctxnon0_64k_tte;
unsigned long __reserved10[2];
unsigned long dmmu_tsb_hits_ctxnon0_4mb_tte;
unsigned long dmmu_tsb_ticks_ctxnon0_4mb_tte;
unsigned long __reserved11[2];
unsigned long dmmu_tsb_hits_ctxnon0_256mb_tte;
unsigned long dmmu_tsb_ticks_ctxnon0_256mb_tte;
unsigned long __reserved12[4];
};
#endif
/* mmustat_conf()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMUSTAT_CONF
* ARG0: real address
* RET0: status
* RET1: real address
* ERRORS: ENORADDR Invalid real address
* EBADALIGN Real address not aligned on 64-byte boundary
* EBADTRAP API not supported on this processor
*
* Enable MMU statistic gathering using the buffer at the given real
* address on the current virtual CPU. The new buffer real address
* is given in ARG1, and the previously specified buffer real address
* is returned in RET1, or is returned as zero for the first invocation.
*
* If the passed in real address argument is zero, this will disable
* MMU statistic collection on the current virtual CPU. If an error is
* returned then no statistics are collected.
*
* The buffer contents should be initialized to all zeros before being
* given to the hypervisor or else the statistics will be meaningless.
*/
#define HV_FAST_MMUSTAT_CONF 0x102
/* mmustat_info()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMUSTAT_INFO
* RET0: status
* RET1: real address
* ERRORS: EBADTRAP API not supported on this processor
*
* Return the current state and real address of the currently configured
* MMU statistics buffer on the current virtual CPU.
*/
#define HV_FAST_MMUSTAT_INFO 0x103
#ifndef __ASSEMBLY__
unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra);
unsigned long sun4v_mmustat_info(unsigned long *ra);
#endif
/* NCS crypto services */
/* ncs_request() sub-function numbers */
#define HV_NCS_QCONF 0x01
#define HV_NCS_QTAIL_UPDATE 0x02
#ifndef __ASSEMBLY__
struct hv_ncs_queue_entry {
/* MAU Control Register */
unsigned long mau_control;
#define MAU_CONTROL_INV_PARITY 0x0000000000002000
#define MAU_CONTROL_STRAND 0x0000000000001800
#define MAU_CONTROL_BUSY 0x0000000000000400
#define MAU_CONTROL_INT 0x0000000000000200
#define MAU_CONTROL_OP 0x00000000000001c0
#define MAU_CONTROL_OP_SHIFT 6
#define MAU_OP_LOAD_MA_MEMORY 0x0
#define MAU_OP_STORE_MA_MEMORY 0x1
#define MAU_OP_MODULAR_MULT 0x2
#define MAU_OP_MODULAR_REDUCE 0x3
#define MAU_OP_MODULAR_EXP_LOOP 0x4
#define MAU_CONTROL_LEN 0x000000000000003f
#define MAU_CONTROL_LEN_SHIFT 0
/* Real address of bytes to load or store bytes
* into/out-of the MAU.
*/
unsigned long mau_mpa;
/* Modular Arithmetic MA Offset Register. */
unsigned long mau_ma;
/* Modular Arithmetic N Prime Register. */
unsigned long mau_np;
};
struct hv_ncs_qconf_arg {
unsigned long mid; /* MAU ID, 1 per core on Niagara */
unsigned long base; /* Real address base of queue */
unsigned long end; /* Real address end of queue */
unsigned long num_ents; /* Number of entries in queue */
};
struct hv_ncs_qtail_update_arg {
unsigned long mid; /* MAU ID, 1 per core on Niagara */
unsigned long tail; /* New tail index to use */
unsigned long syncflag; /* only SYNCFLAG_SYNC is implemented */
#define HV_NCS_SYNCFLAG_SYNC 0x00
#define HV_NCS_SYNCFLAG_ASYNC 0x01
};
#endif
/* ncs_request()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_NCS_REQUEST
* ARG0: NCS sub-function
* ARG1: sub-function argument real address
* ARG2: size in bytes of sub-function argument
* RET0: status
*
* The MAU chip of the Niagara processor is not directly accessible
* to privileged code, instead it is programmed indirectly via this
* hypervisor API.
*
* The interfaces defines a queue of MAU operations to perform.
* Privileged code registers a queue with the hypervisor by invoking
* this HVAPI with the HV_NCS_QCONF sub-function, which defines the
* base, end, and number of entries of the queue. Each queue entry
* contains a MAU register struct block.
*
* The privileged code then proceeds to add entries to the queue and
* then invoke the HV_NCS_QTAIL_UPDATE sub-function. Since only
* synchronous operations are supported by the current hypervisor,
* HV_NCS_QTAIL_UPDATE will run all the pending queue entries to
* completion and return HV_EOK, or return an error code.
*
* The real address of the sub-function argument must be aligned on at
* least an 8-byte boundary.
*
* The tail argument of HV_NCS_QTAIL_UPDATE is an index, not a byte
* offset, into the queue and must be less than or equal the 'num_ents'
* argument given in the HV_NCS_QCONF call.
*/
#define HV_FAST_NCS_REQUEST 0x110
#ifndef __ASSEMBLY__
unsigned long sun4v_ncs_request(unsigned long request,
unsigned long arg_ra,
unsigned long arg_size);
#endif
#define HV_FAST_FIRE_GET_PERFREG 0x120
#define HV_FAST_FIRE_SET_PERFREG 0x121
#define HV_FAST_REBOOT_DATA_SET 0x172
#ifndef __ASSEMBLY__
unsigned long sun4v_reboot_data_set(unsigned long ra,
unsigned long len);
#endif
#define HV_FAST_VT_GET_PERFREG 0x184
#define HV_FAST_VT_SET_PERFREG 0x185
#ifndef __ASSEMBLY__
unsigned long sun4v_vt_get_perfreg(unsigned long reg_num,
unsigned long *reg_val);
unsigned long sun4v_vt_set_perfreg(unsigned long reg_num,
unsigned long reg_val);
#endif
#define HV_FAST_T5_GET_PERFREG 0x1a8
#define HV_FAST_T5_SET_PERFREG 0x1a9
#ifndef __ASSEMBLY__
unsigned long sun4v_t5_get_perfreg(unsigned long reg_num,
unsigned long *reg_val);
unsigned long sun4v_t5_set_perfreg(unsigned long reg_num,
unsigned long reg_val);
#endif
#define HV_FAST_M7_GET_PERFREG 0x43
#define HV_FAST_M7_SET_PERFREG 0x44
#ifndef __ASSEMBLY__
unsigned long sun4v_m7_get_perfreg(unsigned long reg_num,
unsigned long *reg_val);
unsigned long sun4v_m7_set_perfreg(unsigned long reg_num,
unsigned long reg_val);
#endif
/* Function numbers for HV_CORE_TRAP. */
#define HV_CORE_SET_VER 0x00
#define HV_CORE_PUTCHAR 0x01
#define HV_CORE_EXIT 0x02
#define HV_CORE_GET_VER 0x03
/* Hypervisor API groups for use with HV_CORE_SET_VER and
* HV_CORE_GET_VER.
*/
#define HV_GRP_SUN4V 0x0000
#define HV_GRP_CORE 0x0001
#define HV_GRP_INTR 0x0002
#define HV_GRP_SOFT_STATE 0x0003
#define HV_GRP_TM 0x0080
#define HV_GRP_PCI 0x0100
#define HV_GRP_LDOM 0x0101
#define HV_GRP_SVC_CHAN 0x0102
#define HV_GRP_NCS 0x0103
#define HV_GRP_RNG 0x0104
#define HV_GRP_PBOOT 0x0105
#define HV_GRP_TPM 0x0107
#define HV_GRP_SDIO 0x0108
#define HV_GRP_SDIO_ERR 0x0109
#define HV_GRP_REBOOT_DATA 0x0110
#define HV_GRP_ATU 0x0111
#define HV_GRP_DAX 0x0113
#define HV_GRP_M7_PERF 0x0114
#define HV_GRP_NIAG_PERF 0x0200
#define HV_GRP_FIRE_PERF 0x0201
#define HV_GRP_N2_CPU 0x0202
#define HV_GRP_NIU 0x0204
#define HV_GRP_VF_CPU 0x0205
#define HV_GRP_KT_CPU 0x0209
#define HV_GRP_VT_CPU 0x020c
#define HV_GRP_T5_CPU 0x0211
#define HV_GRP_DIAG 0x0300
#ifndef __ASSEMBLY__
unsigned long sun4v_get_version(unsigned long group,
unsigned long *major,
unsigned long *minor);
unsigned long sun4v_set_version(unsigned long group,
unsigned long major,
unsigned long minor,
unsigned long *actual_minor);
int sun4v_hvapi_register(unsigned long group, unsigned long major,
unsigned long *minor);
void sun4v_hvapi_unregister(unsigned long group);
int sun4v_hvapi_get(unsigned long group,
unsigned long *major,
unsigned long *minor);
void sun4v_hvapi_init(void);
#endif
#endif /* !(_SPARC64_HYPERVISOR_H) */
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