x86/kvm: Enable MCE injection in the guest
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- v1 Latest3 patches 7 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | kvm/x86: Move MSR_K7_HWCR to svm.carch/ arch/ | +14 | 0 replies | |
| 2/3 | x86/kvm: Implement MSR_HWCR supportarch/ arch/ | +40 | 3 replies | |
| 3/3 | x86/kvm: Handle all MCA banksarch/ | +3 | 4 replies |
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Cover letter [PATCH 0/3] x86/kvm: Enable MCE injection in the guest
From: Borislav Petkov <[email protected]>
Hi all,
there's this mce-inject.ko module in the kernel which allows for injecting real MCEs and thus test the MCE handling code.
It is doubly useful to be able to inject same MCEs in a guest so that testing of the MCE handling code can happen even easier/faster. In order to be able to do that on an AMD guest, we need to emulate some bits and pieces like the HWCR[McStatusWrEn] bit which allows writes to the MCi_STATUS registers without a #GP.
The below does that and with it I'm able to properly inject MCEs in said guest.
Thx.
Borislav Petkov (3):
kvm/x86: Move MSR_K7_HWCR to svm.c
x86/kvm: Implement MSR_HWCR support
x86/kvm: Handle all MCA banks
arch/x86/kvm/svm.c | 20 ++++++++++++++++++ arch/x86/kvm/x86.c | 51 ++++++++++++++++++++++++++++++---------------- 2 files changed, 54 insertions(+), 17 deletions(-)
Signature · 1 line
2.17.0.582.gccdcbd54c