KVM: x86: Prevent host from panicking on shared MSR writes.

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commit 8b3c3104c3 upstream.

The previous patch blocked invalid writes directly when the MSR
is written.  As a precaution, prevent future similar mistakes by
gracefulling handle GPs caused by writes to shared MSRs.

Signed-off-by: Andrew Honig <ahonig@google.com>
[Remove parts obsoleted by Nadav's patch. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

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Andy Honig 2014-08-27 11:16:44 -07:00 • committed by Luis Henriques

parent 604acafa52

commit 78c4e45457

3 changed files with 14 additions and 6 deletions

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2

arch/x86/include/asm/kvm_host.h

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7

arch/x86/kvm/vmx.c

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11

arch/x86/kvm/x86.c

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