KVM: x86: BSP in MSR_IA32_APICBASE is writable

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After reset, the CPU can change the BSP, which will be used upon INIT.  Reset
should return the BSP which QEMU asked for, and therefore handled accordingly.

To quote: "If the MP protocol has completed and a BSP is chosen, subsequent
INITs (either to a specific processor or system wide) do not cause the MP
protocol to be repeated."
[Intel SDM 8.4.2: MP Initialization Protocol Requirements and Restrictions]

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427933438-12782-3-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

...

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Nadav Amit 2015-04-02 03:10:36 +03:00 • committed by Paolo Bonzini

parent 3b5a5ffa92

commit 58d269d8cc

5 changed files with 9 additions and 6 deletions

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2

arch/x86/kvm/lapic.c

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2

arch/x86/kvm/svm.c

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2

arch/x86/kvm/vmx.c

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2

arch/x86/kvm/x86.c

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include/linux/kvm_host.h

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