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From: | Paolo Bonzini |
Subject: | Re: [Qemu-devel] [Qemu-stable] [PATCH] target-i386: do not read/write MSR_TSC_AUX from KVM if CPUID bit is not set |
Date: | Thu, 31 Mar 2016 15:23:05 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 |
On 31/03/2016 15:12, Peter Lieven wrote: >> >>> KVM does not let you read or write this MSR if the corresponding CPUID >>> bit is not set. This in turn causes MSRs that come after MSR_TSC_AUX >>> to be ignored by KVM_SET_MRSS. > > Is it possible that this causes a freeze when migrating vom qemu 2.2.0 > to 2.5.1? I wouldn't exclude it if the CPU model is Westmere or earlier. Paolo
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