Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-08 Thread Paolo Bonzini
On 08/03/19 17:28, Sean Christopherson wrote: > On Mon, Mar 04, 2019 at 08:36:55PM +0800, Yang Weijiang wrote: >> On Mon, Mar 04, 2019 at 07:12:02PM -0800, Sean Christopherson wrote: >>> On Mon, Mar 04, 2019 at 05:56:40PM +0800, Yang Weijiang wrote: Cannot agree with you more! This is som

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-08 Thread Sean Christopherson
On Mon, Mar 04, 2019 at 08:36:55PM +0800, Yang Weijiang wrote: > On Mon, Mar 04, 2019 at 07:12:02PM -0800, Sean Christopherson wrote: > > On Mon, Mar 04, 2019 at 05:56:40PM +0800, Yang Weijiang wrote: > > > Cannot agree with you more! > > > This is some design limitation, but from my point of view,

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-04 Thread Yang Weijiang
On Mon, Mar 04, 2019 at 07:12:02PM -0800, Sean Christopherson wrote: > On Mon, Mar 04, 2019 at 05:56:40PM +0800, Yang Weijiang wrote: > > On Mon, Mar 04, 2019 at 10:43:07AM -0800, Sean Christopherson wrote: > > > On Sun, Mar 03, 2019 at 08:26:08PM +0800, Yang Weijiang wrote: > > > > On Fri, Mar 01,

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-04 Thread Sean Christopherson
On Mon, Mar 04, 2019 at 05:56:40PM +0800, Yang Weijiang wrote: > On Mon, Mar 04, 2019 at 10:43:07AM -0800, Sean Christopherson wrote: > > On Sun, Mar 03, 2019 at 08:26:08PM +0800, Yang Weijiang wrote: > > > On Fri, Mar 01, 2019 at 06:58:19AM -0800, Sean Christopherson wrote: > > > > On Thu, Feb 28,

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-04 Thread Yang Weijiang
On Mon, Mar 04, 2019 at 10:43:07AM -0800, Sean Christopherson wrote: > On Sun, Mar 03, 2019 at 08:26:08PM +0800, Yang Weijiang wrote: > > On Fri, Mar 01, 2019 at 06:58:19AM -0800, Sean Christopherson wrote: > > > On Thu, Feb 28, 2019 at 04:38:44PM +0800, Yang Weijiang wrote: > > > > On Thu, Feb 28,

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-04 Thread Sean Christopherson
On Sun, Mar 03, 2019 at 08:26:08PM +0800, Yang Weijiang wrote: > On Fri, Mar 01, 2019 at 06:58:19AM -0800, Sean Christopherson wrote: > > On Thu, Feb 28, 2019 at 04:38:44PM +0800, Yang Weijiang wrote: > > > On Thu, Feb 28, 2019 at 08:17:15AM -0800, Sean Christopherson wrote: > > > > On Mon, Feb 25,

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-03 Thread Yang Weijiang
On Fri, Mar 01, 2019 at 06:58:19AM -0800, Sean Christopherson wrote: > On Thu, Feb 28, 2019 at 04:38:44PM +0800, Yang Weijiang wrote: > > On Thu, Feb 28, 2019 at 08:17:15AM -0800, Sean Christopherson wrote: > > > On Mon, Feb 25, 2019 at 09:27:14PM +0800, Yang Weijiang wrote: > > > > "Load Guest CET

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-03-01 Thread Sean Christopherson
On Thu, Feb 28, 2019 at 04:38:44PM +0800, Yang Weijiang wrote: > On Thu, Feb 28, 2019 at 08:17:15AM -0800, Sean Christopherson wrote: > > On Mon, Feb 25, 2019 at 09:27:14PM +0800, Yang Weijiang wrote: > > > "Load Guest CET state" bit controls whether guest CET states > > > will be loaded at Guest e

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-02-28 Thread Yang Weijiang
On Thu, Feb 28, 2019 at 08:17:15AM -0800, Sean Christopherson wrote: > On Mon, Feb 25, 2019 at 09:27:14PM +0800, Yang Weijiang wrote: > > "Load Guest CET state" bit controls whether guest CET states > > will be loaded at Guest entry. Before doing that, KVM needs > > to check if CPU CET feature is a

Re: [PATCH v3 6/8] KVM:VMX: Load Guest CET via VMCS when CET is enabled in Guest

2019-02-28 Thread Sean Christopherson
On Mon, Feb 25, 2019 at 09:27:14PM +0800, Yang Weijiang wrote: > "Load Guest CET state" bit controls whether guest CET states > will be loaded at Guest entry. Before doing that, KVM needs > to check if CPU CET feature is available. > > Signed-off-by: Zhang Yi Z > Signed-off-by: Yang Weijiang > -