> > static bool vmx_has_high_real_mode_segbase(void)
> > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> > index 7e3041ef050f..cc741b68139c 100644
> > --- a/arch/x86/kvm/x86.c
> > +++ b/arch/x86/kvm/x86.c
> > @@ -6706,21 +6706,13 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
> >
>
...
> static bool vmx_has_high_real_mode_segbase(void)
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 7e3041ef050f..cc741b68139c 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -6706,21 +6706,13 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
>
> kvm
On 16/06/2016 19:03, David Matlack wrote:
> > > If you make the else case the same as svm_handle_external_intr, can we
> > > avoid requiring ack-intr-on-exit?
> >
> > Yes, but the sti/nop/cli would be useless if ack-intr-on-exit is
> > available. It's a bit ugly, so I RFCed the bold thing instea
On Thu, Jun 16, 2016 at 9:47 AM, Paolo Bonzini wrote:
> On 16/06/2016 18:43, David Matlack wrote:
>> On Thu, Jun 16, 2016 at 1:21 AM, Paolo Bonzini wrote:
>>> This gains ~20 clock cycles per vmexit. On Intel there is no need
>>> anymore to enable the interrupts in vmx_handle_external_intr, since
On 16/06/2016 18:43, David Matlack wrote:
> On Thu, Jun 16, 2016 at 1:21 AM, Paolo Bonzini wrote:
>> This gains ~20 clock cycles per vmexit. On Intel there is no need
>> anymore to enable the interrupts in vmx_handle_external_intr, since we
>> are using the "acknowledge interrupt on exit" featu
On Thu, Jun 16, 2016 at 1:21 AM, Paolo Bonzini wrote:
> This gains ~20 clock cycles per vmexit. On Intel there is no need
> anymore to enable the interrupts in vmx_handle_external_intr, since we
> are using the "acknowledge interrupt on exit" feature. AMD needs to do
> that temporarily, and must
This gains ~20 clock cycles per vmexit. On Intel there is no need
anymore to enable the interrupts in vmx_handle_external_intr, since we
are using the "acknowledge interrupt on exit" feature. AMD needs to do
that temporarily, and must be careful to avoid the interrupt shadow.
Signed-off-by: Paol
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