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| author | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-23 03:50:35 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-30 11:54:14 +0300 |
| commit | 10a37929efeb4c51a0069afdd537c4fa3831f6e5 (patch) | |
| tree | ef056b1ae7077a9352a201a3cf5f22bfdd9ea6ce /arch | |
| parent | 17d44a96f000fe1040d4ba1c34e458c63be6b7ce (diff) | |
| download | linux-10a37929efeb4c51a0069afdd537c4fa3831f6e5.tar.xz | |
KVM: SEV: do not take kvm->lock when destroying
Taking the lock is useless since there are no other references,
and there are already accesses (e.g. to sev->enc_context_owner)
that do not take it. So get rid of it.
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20211123005036.2954379-12-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 89a716290fac..bbbf980c7e40 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -2048,8 +2048,6 @@ void sev_vm_destroy(struct kvm *kvm) return; } - mutex_lock(&kvm->lock); - /* * Ensure that all guest tagged cache entries are flushed before * releasing the pages back to the system for use. CLFLUSH will @@ -2069,8 +2067,6 @@ void sev_vm_destroy(struct kvm *kvm) } } - mutex_unlock(&kvm->lock); - sev_unbind_asid(kvm, sev->handle); sev_asid_free(sev); } |