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KVM: arm64: Key unpin_host_sve_state() on the state it unpins

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unpin_host_sve_state() gates on the VM's SVE feature bit, but what it
unpins is the state pkvm_vcpu_init_sve() pinned. A vCPU that completed
init has sve_state set exactly when that bit is set, so the two agree.
Gate on sve_state, which is what is being unpinned.

Signed-off-by: Fuad Tabba <fuad.tabba@linux.dev>
Link: https://patch.msgid.link/20260825085948.1674721-4-fuad.tabba@linux.dev
Signed-off-by: Oliver Upton <oupton@kernel.org>
This commit is contained in:
Fuad Tabba 2026-08-25 09:59:47 +01:00 committed by Oliver Upton
parent a1b3c788ad
commit 0d62fbf34d
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/kvm/hyp/nvhe/pkvm.c
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@ -398,10 +398,10 @@ static void unpin_host_sve_state(struct pkvm_hyp_vcpu *hyp_vcpu)
{
void *sve_state;
if (!vcpu_has_feature(&hyp_vcpu->vcpu, KVM_ARM_VCPU_SVE))
sve_state = hyp_vcpu->vcpu.arch.sve_state;
if (!sve_state)
return;
sve_state = hyp_vcpu->vcpu.arch.sve_state;
hyp_unpin_shared_mem(sve_state,
sve_state + vcpu_sve_state_size(&hyp_vcpu->vcpu));
}