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Eduardo Habkost caeabc24a6 kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs commit `0e1b869fff` 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". Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>	History 2019-02-11 17:54:28 +00:00
..
asm	KVM: x86: remove code for lazy FPU handling	2019-02-11 17:53:35 +00:00
uapi/asm	kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs	2019-02-11 17:54:28 +00:00

Eduardo Habkost caeabc24a6 kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs

commit 0e1b869fff 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".

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

History

2019-02-11 17:54:28 +00:00

asm KVM: x86: remove code for lazy FPU handling 2019-02-11 17:53:35 +00:00

uapi/asm kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs 2019-02-11 17:54:28 +00:00