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(parent: ebae871) | patch
KVM: x86: trap AMD MSRs for the TSeg base and mask
authorPaolo Bonzini <pbonzini@redhat.com>
Fri, 18 Sep 2015 15:33:04 +0000 (17:33 +0200)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 21 Sep 2015 05:41:22 +0000 (07:41 +0200)
commit3afb1121800128aae9f5722e50097fcf1a9d4d88
tree6bf23ea486d09f71f6f0ef5369a04feead1746a8tree | snapshot
parentebae871a509d3c24b32ff67af2671dadffc58770commit | diff
KVM: x86: trap AMD MSRs for the TSeg base and mask

These have roughly the same purpose as the SMRR, which we do not need
to implement in KVM.  However, Linux accesses MSR_K8_TSEG_ADDR at
boot, which causes problems when running a Xen dom0 under KVM.
Just return 0, meaning that processor protection of SMRAM is not
in effect.

Reported-by: M A Young <m.a.young@durham.ac.uk>
Cc: stable@vger.kernel.org
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/include/asm/msr-index.h diff | blob | history
arch/x86/kvm/x86.c diff | blob | history
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