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| author | Marc Zyngier <maz@kernel.org> | 2020-09-18 14:25:40 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-09-29 18:08:16 +0300 |
| commit | 29e8910a566aad3ee72f729e45842858d51ced8d (patch) | |
| tree | 24f724d8fc710a804931c0adcbe1418794491e56 /arch/arm64/include/asm/kvm_asm.h | |
| parent | c28762070ca651fe7a981b8f31d972c9b7d2c386 (diff) | |
| download | linux-29e8910a566aad3ee72f729e45842858d51ced8d.tar.xz | |
KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
Owing to the fact that the host kernel is always mitigated, we can
drastically simplify the WA2 handling by keeping the mitigation
state ON when entering the guest. This means the guest is either
unaffected or not mitigated.
This results in a nice simplification of the mitigation space,
and the removal of a lot of code that was never really used anyway.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/kvm_asm.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_asm.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index e9378cc8049d..abe02cf66880 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -9,9 +9,6 @@ #include <asm/virt.h> -#define VCPU_WORKAROUND_2_FLAG_SHIFT 0 -#define VCPU_WORKAROUND_2_FLAG (_AC(1, UL) << VCPU_WORKAROUND_2_FLAG_SHIFT) - #define ARM_EXIT_WITH_SERROR_BIT 31 #define ARM_EXCEPTION_CODE(x) ((x) & ~(1U << ARM_EXIT_WITH_SERROR_BIT)) #define ARM_EXCEPTION_IS_TRAP(x) (ARM_EXCEPTION_CODE((x)) == ARM_EXCEPTION_TRAP) |