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| author | Pasha Tatashin <pasha.tatashin@soleen.com> | 2021-09-30 14:31:00 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-10-01 13:30:59 +0100 |
| commit | 788bfdd97434982b6d575062581e8e72eea755af (patch) | |
| tree | 16c538a07d47ee67cbc7b4833a521345d7f444cc /arch/arm64/kernel/hibernate-asm.S | |
| parent | 094a3684b9b67758ccedf0e6068d90f22f2942d9 (diff) | |
| download | linux-788bfdd97434982b6d575062581e8e72eea755af.tar.bz2 | |
arm64: trans_pgd: hibernate: Add trans_pgd_copy_el2_vectors
Users of trans_pgd may also need a copy of vector table because it is
also may be overwritten if a linear map can be overwritten.
Move setup of EL2 vectors from hibernate to trans_pgd, so it can be
later shared with kexec as well.
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210930143113.1502553-3-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/hibernate-asm.S')
| -rw-r--r-- | arch/arm64/kernel/hibernate-asm.S | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/arm64/kernel/hibernate-asm.S b/arch/arm64/kernel/hibernate-asm.S index 81c0186a5e32..a30a2c3f905e 100644 --- a/arch/arm64/kernel/hibernate-asm.S +++ b/arch/arm64/kernel/hibernate-asm.S @@ -112,56 +112,4 @@ alternative_insn "dc cvau, x4", "dc civac, x4", ARM64_WORKAROUND_CLEAN_CACHE hvc #0 3: ret SYM_CODE_END(swsusp_arch_suspend_exit) - -/* - * Restore the hyp stub. - * This must be done before the hibernate page is unmapped by _cpu_resume(), - * but happens before any of the hyp-stub's code is cleaned to PoC. - * - * x24: The physical address of __hyp_stub_vectors - */ -SYM_CODE_START_LOCAL(el1_sync) - msr vbar_el2, x24 - eret -SYM_CODE_END(el1_sync) - -.macro invalid_vector label -SYM_CODE_START_LOCAL(\label) - b \label -SYM_CODE_END(\label) -.endm - - invalid_vector el2_sync_invalid - invalid_vector el2_irq_invalid - invalid_vector el2_fiq_invalid - invalid_vector el2_error_invalid - invalid_vector el1_sync_invalid - invalid_vector el1_irq_invalid - invalid_vector el1_fiq_invalid - invalid_vector el1_error_invalid - -/* el2 vectors - switch el2 here while we restore the memory image. */ - .align 11 -SYM_CODE_START(hibernate_el2_vectors) - ventry el2_sync_invalid // Synchronous EL2t - ventry el2_irq_invalid // IRQ EL2t - ventry el2_fiq_invalid // FIQ EL2t - ventry el2_error_invalid // Error EL2t - - ventry el2_sync_invalid // Synchronous EL2h - ventry el2_irq_invalid // IRQ EL2h - ventry el2_fiq_invalid // FIQ EL2h - ventry el2_error_invalid // Error EL2h - - ventry el1_sync // Synchronous 64-bit EL1 - ventry el1_irq_invalid // IRQ 64-bit EL1 - ventry el1_fiq_invalid // FIQ 64-bit EL1 - ventry el1_error_invalid // Error 64-bit EL1 - - ventry el1_sync_invalid // Synchronous 32-bit EL1 - ventry el1_irq_invalid // IRQ 32-bit EL1 - ventry el1_fiq_invalid // FIQ 32-bit EL1 - ventry el1_error_invalid // Error 32-bit EL1 -SYM_CODE_END(hibernate_el2_vectors) - .popsection |