linux-zen-server/arch/arm64/mm/trans_pgd-asm.S

66 lines
1.9 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2021, Microsoft Corporation.
* Pasha Tatashin <pasha.tatashin@soleen.com>
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/kvm_asm.h>
.macro invalid_vector label
SYM_CODE_START_LOCAL(\label)
.align 7
b \label
SYM_CODE_END(\label)
.endm
.macro el1_sync_vector
SYM_CODE_START_LOCAL(el1_sync)
.align 7
cmp x0, #HVC_SET_VECTORS /* Called from hibernate */
b.ne 1f
msr vbar_el2, x1
mov x0, xzr
eret
1: cmp x0, #HVC_SOFT_RESTART /* Called from kexec */
b.ne 2f
mov x0, x2
mov x2, x4
mov x4, x1
mov x1, x3
br x4
2: /* Unexpected argument, set an error */
mov_q x0, HVC_STUB_ERR
eret
SYM_CODE_END(el1_sync)
.endm
SYM_CODE_START(trans_pgd_stub_vectors)
invalid_vector hyp_stub_el2t_sync_invalid // Synchronous EL2t
invalid_vector hyp_stub_el2t_irq_invalid // IRQ EL2t
invalid_vector hyp_stub_el2t_fiq_invalid // FIQ EL2t
invalid_vector hyp_stub_el2t_error_invalid // Error EL2t
invalid_vector hyp_stub_el2h_sync_invalid // Synchronous EL2h
invalid_vector hyp_stub_el2h_irq_invalid // IRQ EL2h
invalid_vector hyp_stub_el2h_fiq_invalid // FIQ EL2h
invalid_vector hyp_stub_el2h_error_invalid // Error EL2h
el1_sync_vector // Synchronous 64-bit EL1
invalid_vector hyp_stub_el1_irq_invalid // IRQ 64-bit EL1
invalid_vector hyp_stub_el1_fiq_invalid // FIQ 64-bit EL1
invalid_vector hyp_stub_el1_error_invalid // Error 64-bit EL1
invalid_vector hyp_stub_32b_el1_sync_invalid // Synchronous 32-bit EL1
invalid_vector hyp_stub_32b_el1_irq_invalid // IRQ 32-bit EL1
invalid_vector hyp_stub_32b_el1_fiq_invalid // FIQ 32-bit EL1
invalid_vector hyp_stub_32b_el1_error_invalid // Error 32-bit EL1
.align 11
SYM_INNER_LABEL(__trans_pgd_stub_vectors_end, SYM_L_LOCAL)
SYM_CODE_END(trans_pgd_stub_vectors)
# Check the trans_pgd_stub_vectors didn't overflow
.org . - (__trans_pgd_stub_vectors_end - trans_pgd_stub_vectors) + SZ_2K