On Mon, Nov 14, 2022 at 09:39:50PM +, Andrew Cooper wrote:
> On 03/11/2022 17:02, Roger Pau Monne wrote:
> > The current logic for AMD SSBD context switches it on every
> > vm{entry,exit} if the Xen and guest selections don't match. This is
> > expensive when not using SPEC_CTRL, and hence sho
On 03/11/2022 17:02, Roger Pau Monne wrote:
> The current logic for AMD SSBD context switches it on every
> vm{entry,exit} if the Xen and guest selections don't match. This is
> expensive when not using SPEC_CTRL, and hence should be avoided as
> much as possible.
>
> When SSBD is not being set fr
Hi Andrew,
> Subject: Re: [PATCH for-4.17 v3 1/2] amd/virt_ssbd: set SSBD at vCPU context
> switch
> > Signed-off-by: Roger Pau Monné
>
> Reviewed-by: Jan Beulich
> with one further remark:
>
> Is "cleared" in the comment correct when "spec-ctrl=ssbd&
On Fri, Nov 04, 2022 at 09:10:21AM +0100, Jan Beulich wrote:
> On 03.11.2022 18:02, Roger Pau Monne wrote:
> > The current logic for AMD SSBD context switches it on every
> > vm{entry,exit} if the Xen and guest selections don't match. This is
> > expensive when not using SPEC_CTRL, and hence shoul
On 03.11.2022 18:02, Roger Pau Monne wrote:
> The current logic for AMD SSBD context switches it on every
> vm{entry,exit} if the Xen and guest selections don't match. This is
> expensive when not using SPEC_CTRL, and hence should be avoided as
> much as possible.
>
> When SSBD is not being set f
Hi Roger,
> -Original Message-
> From: Roger Pau Monne
> Subject: [PATCH for-4.17 v3 1/2] amd/virt_ssbd: set SSBD at vCPU context
> switch
>
> The current logic for AMD SSBD context switches it on every
> vm{entry,exit} if the Xen and guest selections don't match. This is
> expensive wh
