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kvm: vmx: Fix typos comment in __loaded_vmcs_clear()

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Fix a comment documenting the memory barrier related to clearing a
loaded_vmcs; loaded_vmcs tracks the host CPU the VMCS is loaded on via
the field 'cpu', it doesn't have a 'vcpu' field.

Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
Message-Id: <20220222104029.70129-1-flyingpeng@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Peng Hao 2022-02-22 18:40:29 +08:00 committed by Paolo Bonzini
parent fbc2dfe53a
commit 105e0c441a
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kvm/vmx/vmx.c
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@ -640,10 +640,10 @@ static void __loaded_vmcs_clear(void *arg)
/*
* Ensure all writes to loaded_vmcs, including deleting it from its
* current percpu list, complete before setting loaded_vmcs->vcpu to
* -1, otherwise a different cpu can see vcpu == -1 first and add
* loaded_vmcs to its percpu list before it's deleted from this cpu's
* list. Pairs with the smp_rmb() in vmx_vcpu_load_vmcs().
* current percpu list, complete before setting loaded_vmcs->cpu to
* -1, otherwise a different cpu can see loaded_vmcs->cpu == -1 first
* and add loaded_vmcs to its percpu list before it's deleted from this
* cpu's list. Pairs with the smp_rmb() in vmx_vcpu_load_vmcs().
*/
smp_wmb();