I reproduced the blue-screen. Let me to to figure it out. Nadav On Aug 18, 2014, at 11:11 AM, Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx> wrote: > On Mon, Aug 18, 2014 at 09:39:39AM +0300, Nadav Amit wrote: >> This should have been a benign patch. I'll try to get windows 7 installation disk and check ASAP. >> > > In addition, it just can be reproduced on 32bit win7 w/ MP enabled, in > case UP can't be reproduced. > > Regards, > Wanpeng Li > >> Nadav >> >>> On 18 Aug 2014, at 05:17, Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx> wrote: >>> >>> Hi Nadav, >>>> On Wed, Jun 18, 2014 at 05:21:19PM +0300, Nadav Amit wrote: >>>> Recent Intel CPUs have 10 variable range MTRRs. Since operating systems >>>> sometime make assumptions on CPUs while they ignore capability MSRs, it is >>>> better for KVM to be consistent with recent CPUs. Reporting more MTRRs than >>>> actually supported has no functional implications. >>>> >>>> Signed-off-by: Nadav Amit <namit@xxxxxxxxxxxxxxxxx> >>>> --- >>>> arch/x86/include/asm/kvm_host.h | 2 +- >>>> 1 file changed, 1 insertion(+), 1 deletion(-) >>>> >>>> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h >>>> index 4931415..0bab29d 100644 >>>> --- a/arch/x86/include/asm/kvm_host.h >>>> +++ b/arch/x86/include/asm/kvm_host.h >>>> @@ -95,7 +95,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) >>>> #define KVM_REFILL_PAGES 25 >>>> #define KVM_MAX_CPUID_ENTRIES 80 >>>> #define KVM_NR_FIXED_MTRR_REGION 88 >>>> -#define KVM_NR_VAR_MTRR 8 >>>> +#define KVM_NR_VAR_MTRR 10 >>> >>> We observed that there is obvious regression caused by this commit, 32bit >>> win7 guest show blue screen during boot. >>> >>> Regards, >>> Wanpeng Li >>> >>>> #define ASYNC_PF_PER_VCPU 64 >>>> >>>> -- >>>> 1.9.1 >>>> >>>> -- >>>> To unsubscribe from this list: send the line "unsubscribe kvm" in >>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> -- >>> To unsubscribe from this list: send the line "unsubscribe kvm" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
