KVM: SVM: support writing 0 to K8 performance counter control registers

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This lets SVM ignore writes of the value 0 to the performance counter control
registers.  Thus enabling them will still fail in the guest, but a write of 0
which keeps them disabled is accepted.  This is required to boot Windows
Vista 64bit.

[avi: avoid fall-thru in switch statement]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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Joerg Roedel 2007-12-11 15:36:57 +01:00 • committed by Avi Kivity

parent 722f6ecbcf

commit 62b9abaaf8

1 changed files with 13 additions and 0 deletions

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drivers/kvm/svm.c

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