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
