KVM: nVMX: WARN on attempt to switch the currently loaded VMCS

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WARN if KVM attempts to switch to the currently loaded VMCS.  Now that
nested_vmx_free_vcpu() doesn't blindly call vmx_switch_vmcs(), all paths
that lead to vmx_switch_vmcs() are implicitly guarded by guest vs. host
mode, e.g. KVM should never emulate VMX instructions when guest mode is
active, and nested_vmx_vmexit() should never be called when host mode is
active.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200923184452.980-8-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Sean Christopherson 2020-09-23 11:44:52 -07:00 • committed by Paolo Bonzini

parent ebec153a05

commit 138534a810

1 changed files with 1 additions and 1 deletions

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arch/x86/kvm/vmx/nested.c

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