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| author | Eduardo Habkost <ehabkost@redhat.com> | 2018-12-18 03:34:18 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-19 00:15:44 +0300 |
| commit | 0e1b869fff60c81b510c2d00602d778f8f59dd9a (patch) | |
| tree | 60368e72c7054beb43b0bf402a4169cad7b10f3a /arch/x86/include/asm/msr-index.h | |
| parent | dcbd3e49c2f0b2c2d8a321507ff8f3de4af76d7c (diff) | |
| download | linux-0e1b869fff60c81b510c2d00602d778f8f59dd9a.tar.xz | |
kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs
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>
Diffstat (limited to 'arch/x86/include/asm/msr-index.h')
| -rw-r--r-- | arch/x86/include/asm/msr-index.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index c8f73efb4ece..9e39cc8bd989 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -390,6 +390,7 @@ #define MSR_F15H_NB_PERF_CTR 0xc0010241 #define MSR_F15H_PTSC 0xc0010280 #define MSR_F15H_IC_CFG 0xc0011021 +#define MSR_F15H_EX_CFG 0xc001102c /* Fam 10h MSRs */ #define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058 |