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| author | Eduardo Habkost <ehabkost@redhat.com> | 2018-12-18 03:34:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-29 15:39:10 +0300 |
| commit | df4ee073061999ebaed0d2ce0a6cd3380a2ed67f (patch) | |
| tree | 1636f71cebb4b1e1e0f70042f6f7c6a1ed36bb8d /firmware | |
| parent | 2f8f9e280abcb7b2a933091b65ceb19549d85e3e (diff) | |
| download | linux-df4ee073061999ebaed0d2ce0a6cd3380a2ed67f.tar.xz | |
kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs
commit 0e1b869fff60c81b510c2d00602d778f8f59dd9a upstream.
Some guests OSes (including Windows 10) write to MSR 0xc001102c
on some cases (possibly while trying to apply a CPU errata).
Make KVM ignore reads and writes to that MSR, so the guest won't
crash.
The MSR is documented as "Execution Unit Configuration (EX_CFG)",
at AMD's "BIOS and Kernel Developer's Guide (BKDG) for AMD Family
15h Models 00h-0Fh Processors".
Cc: stable@vger.kernel.org
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'firmware')
0 files changed, 0 insertions, 0 deletions