Re: [Xen-devel] [PATCH v9 3/9] xen/x86: support per-domain flag for xpti

2018-05-04 Thread Wei Liu
On Fri, Apr 27, 2018 at 02:15:25AM -0600, Jan Beulich wrote: > >>> On 27.04.18 at 09:59, wrote: > > On 27/04/18 09:55, Sergey Dyasli wrote: > >> On Thu, 2018-04-26 at 13:33 +0200, Juergen Gross wrote: > >>> index b353352adf..220d1ba020 100644 > >>> --- a/docs/misc/xen-command-line.markdown > >>> +

Re: [Xen-devel] [PATCH v9 3/9] xen/x86: support per-domain flag for xpti

2018-04-27 Thread Jan Beulich
>>> On 27.04.18 at 09:59, wrote: > On 27/04/18 09:55, Sergey Dyasli wrote: >> On Thu, 2018-04-26 at 13:33 +0200, Juergen Gross wrote: >>> index b353352adf..220d1ba020 100644 >>> --- a/docs/misc/xen-command-line.markdown >>> +++ b/docs/misc/xen-command-line.markdown >>> @@ -1955,14 +1955,24 @@ clus

Re: [Xen-devel] [PATCH v9 3/9] xen/x86: support per-domain flag for xpti

2018-04-27 Thread Juergen Gross
On 27/04/18 09:55, Sergey Dyasli wrote: > On Thu, 2018-04-26 at 13:33 +0200, Juergen Gross wrote: >> Instead of switching XPTI globally on or off add a per-domain flag for >> that purpose. This allows to modify the xpti boot parameter to support >> running dom0 without Meltdown mitigations. Using "

Re: [Xen-devel] [PATCH v9 3/9] xen/x86: support per-domain flag for xpti

2018-04-27 Thread Sergey Dyasli
On Thu, 2018-04-26 at 13:33 +0200, Juergen Gross wrote: > Instead of switching XPTI globally on or off add a per-domain flag for > that purpose. This allows to modify the xpti boot parameter to support > running dom0 without Meltdown mitigations. Using "xpti=no-dom0" as boot "xpti=dom0=0" > param