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| author | Marc Zyngier <maz@kernel.org> | 2020-09-15 13:42:18 +0300 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-09-18 20:01:48 +0300 |
| commit | 620cf45f7a516bf5fe9e5dce675a652e935c8bde (patch) | |
| tree | 891908d846bbfcf26c8e7023b27dd0c2ff86d7db /arch | |
| parent | c4ad98e4b72cb5be30ea282fce935248f2300e62 (diff) | |
| download | linux-620cf45f7a516bf5fe9e5dce675a652e935c8bde.tar.xz | |
KVM: arm64: Remove S1PTW check from kvm_vcpu_dabt_iswrite()
Now that kvm_vcpu_trap_is_write_fault() checks for S1PTW, there
is no need for kvm_vcpu_dabt_iswrite() to do the same thing, as
we already check for this condition on all existing paths.
Drop the check and add a comment instead.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200915104218.1284701-3-maz@kernel.org
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index 4f618af660ba..1cc5f5f72d0b 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -303,10 +303,10 @@ static __always_inline bool kvm_vcpu_abt_iss1tw(const struct kvm_vcpu *vcpu) return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_S1PTW); } +/* Always check for S1PTW *before* using this. */ static __always_inline bool kvm_vcpu_dabt_iswrite(const struct kvm_vcpu *vcpu) { - return !!(kvm_vcpu_get_esr(vcpu) & ESR_ELx_WNR) || - kvm_vcpu_abt_iss1tw(vcpu); /* AF/DBM update */ + return kvm_vcpu_get_esr(vcpu) & ESR_ELx_WNR; } static inline bool kvm_vcpu_dabt_is_cm(const struct kvm_vcpu *vcpu) |