On 2019/4/2 18:20, Jan Beulich wrote:
On 02.04.19 at 08:46, <pu...@hygon.cn> wrote:
On 2019/4/1 16:41, Jan Beulich wrote:
On 30.03.19 at 11:42, <pu...@hygon.cn> wrote:
There is no MSR_INTEL_PLATFORM_INFO for AMD and Hygon families. So directly
return false in the function probe_cpuid_faulting() if !cpu_has_hypervisor.
I think it would have been nice if you had mentioned the real
reason why you want to bypass the MSR accesses. This way it
sounds as if the change was only cosmetic, and hence could be
left out.
Okay, how about the new description:
There is no MSR_INTEL_PLATFORM_INFO for AMD and Hygon families. Read
this MSR will stop the Xen initialization process
"... for some early Hygon steppings"(?). I'm unaware of AMD CPUs
Yes,for some early Hygon steppings.
having this issue - are you telling us otherwise?
I tested with an AMD CPU(Family 17h, Model 1, Stepping 1) today, and
it also stopped when reading the MSR_INTEL_PLATFORM_INFO instead of
producing #GP(0).
--
Regards,
Pu Wen
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