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authorMarc Zyngier <marc.zyngier@arm.com>2018-05-29 13:11:18 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2018-05-31 18:00:59 +0100
commit5d81f7dc9bca4f4963092433e27b508cbe524a32 (patch)
treee31e1f9ca381c4bdbe67118b6e2dc79c634bd20c /arch/arm64/kvm
parentb4f18c063a13dfb33e3a63fe1844823e19c2265e (diff)
downloadtalos-obmc-linux-5d81f7dc9bca4f4963092433e27b508cbe524a32.tar.gz
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arm64: KVM: Add ARCH_WORKAROUND_2 discovery through ARCH_FEATURES_FUNC_ID
Now that all our infrastructure is in place, let's expose the availability of ARCH_WORKAROUND_2 to guests. We take this opportunity to tidy up a couple of SMCCC constants. Acked-by: Christoffer Dall <christoffer.dall@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kvm')
-rw-r--r--arch/arm64/kvm/reset.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 3256b9228e75..a74311beda35 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -122,6 +122,10 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
/* Reset PMU */
kvm_pmu_vcpu_reset(vcpu);
+ /* Default workaround setup is enabled (if supported) */
+ if (kvm_arm_have_ssbd() == KVM_SSBD_KERNEL)
+ vcpu->arch.workaround_flags |= VCPU_WORKAROUND_2_FLAG;
+
/* Reset timer */
return kvm_timer_vcpu_reset(vcpu);
}
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