On Thu, Jun 17, 2010, Gleb Natapov wrote about "Re: [PATCH 16/24] Implement VMLAUNCH and VMRESUME":
> > +static int handle_launch_or_resume(struct kvm_vcpu *vcpu, bool launch)
> > +{
> > + if (!nested_vmx_check_permission(vcpu))
>...
> Should also check MOV SS blocking. Why Intel decided that vm entry
> should fail in this case? How knows, but spec says so.
Thanks. Added the check:
if (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & GUEST_INTR_STATE_MOV_SS){
nested_vmx_failValid(vcpu,
VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS);
skip_emulated_instruction(vcpu);
return 1;
}
Like you, I don't understand why this test is at all necessary...
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Nadav Har'El | Thursday, Sep 16 2010, 8 Tishri 5771
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