Re: [Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream

2017-11-20 Thread Jan Beulich
>>> On 20.11.17 at 15:10, wrote: > On 17/11/17 12:10, Jan Beulich wrote: > On 16.11.17 at 20:15, wrote: >>> Doing so amounts to silent state corruption, and must be avoided. >> I think a little more explanation is needed on why the

Re: [Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream

2017-11-20 Thread Andrew Cooper
On 17/11/17 12:10, Jan Beulich wrote: On 16.11.17 at 20:15, wrote: >> Doing so amounts to silent state corruption, and must be avoided. > I think a little more explanation is needed on why the current code > is insufficient. Note specifically this > > for ( i =

Re: [Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream

2017-11-17 Thread Jan Beulich
>>> On 16.11.17 at 20:15, wrote: > Doing so amounts to silent state corruption, and must be avoided. I think a little more explanation is needed on why the current code is insufficient. Note specifically this for ( i = 0; !err && i < ctxt->count; ++i ) {

Re: [Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream

2017-11-17 Thread Wei Liu
On Thu, Nov 16, 2017 at 07:15:32PM +, Andrew Cooper wrote: > Doing so amounts to silent state corruption, and must be avoided. > > Signed-off-by: Andrew Cooper Reviewed-by: Wei Liu ___ Xen-devel

[Xen-devel] [PATCH for-4.10] x86/hvm: Don't ignore unknown MSRs in the migration stream

2017-11-16 Thread Andrew Cooper
Doing so amounts to silent state corruption, and must be avoided. Signed-off-by: Andrew Cooper --- CC: Jan Beulich CC: Wei Liu CC: Jun Nakajima CC: Kevin Tian CC: Boris Ostrovsky