Hi, Huang-san (2010/11/25 14:44), Huang Ying wrote: > On Thu, 2010-11-25 at 13:30 +0800, Jin Dongming wrote: >> Hi, Huang-san >> >> (2010/11/25 10:27), Huang Ying wrote: >>> Hi, Dongming, >>> >>> On Thu, 2010-11-25 at 09:14 +0800, Jin Dongming wrote: >>>> In some case of mce test, the injected data can be remained >>>> in the registers and ca affect to the result of following test cases. >>>> So add codes for clearing mce registers of given VCPU. >>>> >>>> mce registers of give VCPU could be cleared from kernel by calling >>>> the function in this patch. What need to be paid attention is that >>>> the status and mcg_status of mce must be set with 0. If not, mce >>>> registers will not be cleared. >>> >>> Why do you need this? To use "mce=3" in guest Linux MCE testing? >> When I set fake_panic==1 on Guest OS and tested mce via qemu-monitor, >> I got the wrong result sometimes. The reason why I got the wrong result >> was that mce registers were not cleared. So I made this patch. > > This can be done in QEMU via KVM_SET_MSRS too. Yes, it could be done in Guest OS with APL. So I will cancel this patch. Best Regards, Jin Dongming > >>> If it is, why not use full reboot? MCE registers are not cleared in real >>> machine too. And it is not so pain to reboot the guest. >> Though we know that mce registers could be cleared by rebooting the Guest >> Machine and the reboot of Guest Machine could save much more time than >> the reboot of Host Machine, it is still slower than setting >> fake_panic==1 to mce test. > > Best Regards, > Huang Ying > > > -- > 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
