On Tue, 2019-03-19 at 17:09 -0700, Sean Christopherson wrote:
> On Wed, Mar 20, 2019 at 01:51:28AM +0800, Xiaoyao Li wrote:
> > On Tue, 2019-03-19 at 07:28 -0700, Sean Christopherson wrote:
> > > On Tue, Mar 19, 2019 at 12:37:23PM +0800, Xiaoyao Li wrote:
> > > > On Mon, 2019-03-18 at 09:38 -0700,
On Wed, Mar 20, 2019 at 01:51:28AM +0800, Xiaoyao Li wrote:
> On Tue, 2019-03-19 at 07:28 -0700, Sean Christopherson wrote:
> > On Tue, Mar 19, 2019 at 12:37:23PM +0800, Xiaoyao Li wrote:
> > > On Mon, 2019-03-18 at 09:38 -0700, Sean Christopherson wrote:
> > > > On Mon, Mar 18, 2019 at 07:43:24PM
On Tue, 2019-03-19 at 07:28 -0700, Sean Christopherson wrote:
> On Tue, Mar 19, 2019 at 12:37:23PM +0800, Xiaoyao Li wrote:
> > On Mon, 2019-03-18 at 09:38 -0700, Sean Christopherson wrote:
> > > On Mon, Mar 18, 2019 at 07:43:24PM +0800, Xiaoyao Li wrote:
> > > > Current cpuid faulting of guest is
On Tue, Mar 19, 2019 at 12:37:23PM +0800, Xiaoyao Li wrote:
> On Mon, 2019-03-18 at 09:38 -0700, Sean Christopherson wrote:
> > On Mon, Mar 18, 2019 at 07:43:24PM +0800, Xiaoyao Li wrote:
> > > Current cpuid faulting of guest is purely emulated in kvm, which exploits
> > > CPUID vm exit to inject
On Mon, 2019-03-18 at 09:38 -0700, Sean Christopherson wrote:
> On Mon, Mar 18, 2019 at 07:43:24PM +0800, Xiaoyao Li wrote:
> > Current cpuid faulting of guest is purely emulated in kvm, which exploits
> > CPUID vm exit to inject #GP to guest. However, if host hardware cpu has
> >
On Mon, Mar 18, 2019 at 07:43:24PM +0800, Xiaoyao Li wrote:
> Current cpuid faulting of guest is purely emulated in kvm, which exploits
> CPUID vm exit to inject #GP to guest. However, if host hardware cpu has
> X86_FEATURE_CPUID_FAULT, we can just use the hardware cpuid faulting for
> guest to
Current cpuid faulting of guest is purely emulated in kvm, which exploits
CPUID vm exit to inject #GP to guest. However, if host hardware cpu has
X86_FEATURE_CPUID_FAULT, we can just use the hardware cpuid faulting for
guest to avoid the vm exit overhead.
Note: cpuid faulting takes higher
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