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KVM: arm64: pkvm: Don't mask already zeroed FEAT_SVE

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FEAT_SVE is already masked by the fixed configuration for
ID_AA64PFR0_EL1; don't try and mask it at runtime.

No functional change intended.

Signed-off-by: Oliver Upton <oupton@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220509162559.2387784-3-oupton@google.com
This commit is contained in:
Oliver Upton 2022-05-09 16:25:59 +00:00 committed by Marc Zyngier
parent 4d2e469e16
commit 249838b766
1 changed files with 0 additions and 3 deletions
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3
arch/arm64/kvm/hyp/nvhe/sys_regs.c
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@ -90,9 +90,6 @@ static u64 get_pvm_id_aa64pfr0(const struct kvm_vcpu *vcpu)
u64 set_mask = 0; u64 set_mask = 0;
u64 allow_mask = PVM_ID_AA64PFR0_ALLOW; u64 allow_mask = PVM_ID_AA64PFR0_ALLOW;
if (!vcpu_has_sve(vcpu))
allow_mask &= ~ARM64_FEATURE_MASK(ID_AA64PFR0_SVE);
set_mask |= get_restricted_features_unsigned(id_aa64pfr0_el1_sys_val, set_mask |= get_restricted_features_unsigned(id_aa64pfr0_el1_sys_val,
PVM_ID_AA64PFR0_RESTRICT_UNSIGNED); PVM_ID_AA64PFR0_RESTRICT_UNSIGNED);