Re: [Xen-devel] [PATCH 8/8] x86/cpuid: Enable CPUID Faulting for the control domain

2019-09-12 Thread Andrew Cooper
On 12/09/2019 10:07, Jan Beulich wrote: > On 11.09.2019 22:05, Andrew Cooper wrote: >> The domain builder no longer uses CPUID instructions for policy decisions. > How certain are we that there are no other components left relying > on being able to see raw CPUID output in Dom0? Cstates and Turbo

Re: [Xen-devel] [PATCH 8/8] x86/cpuid: Enable CPUID Faulting for the control domain

2019-09-12 Thread Jan Beulich
On 11.09.2019 22:05, Andrew Cooper wrote: > The domain builder no longer uses CPUID instructions for policy decisions. How certain are we that there are no other components left relying on being able to see raw CPUID output in Dom0? Sadly customers are often doing strange things, insisting that

[Xen-devel] [PATCH 8/8] x86/cpuid: Enable CPUID Faulting for the control domain

2019-09-11 Thread Andrew Cooper
The domain builder no longer uses CPUID instructions for policy decisions. Signed-off-by: Andrew Cooper --- CC: Jan Beulich CC: Wei Liu CC: Roger Pau Monné --- xen/arch/x86/cpu/common.c | 19 ++- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git