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| author | Fuad Tabba <fuad.tabba@linux.dev> | 2026-08-25 09:59:47 +0100 |
|---|---|---|
| committer | Oliver Upton <oupton@kernel.org> | 2026-09-15 15:09:56 -0700 |
| commit | 0d62fbf34d8fe7a3ff56692d39fbb8e6e9bf15fb (patch) | |
| tree | 24554ac5e683105baef1b37932af58395c83c273 | |
| parent | a1b3c788ad31837e348075e93dbba3f447492776 (diff) | |
| download | linux-next-0d62fbf34d8fe7a3ff56692d39fbb8e6e9bf15fb.tar.gz linux-next-0d62fbf34d8fe7a3ff56692d39fbb8e6e9bf15fb.zip | |
KVM: arm64: Key unpin_host_sve_state() on the state it unpins
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>
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/pkvm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/pkvm.c b/arch/arm64/kvm/hyp/nvhe/pkvm.c index 4857a11d4292..453d3fa4a420 100644 --- a/arch/arm64/kvm/hyp/nvhe/pkvm.c +++ b/arch/arm64/kvm/hyp/nvhe/pkvm.c @@ -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)); } |