KVM: Ignore DEBUGCTL MSRs with no effect

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Netware writes to DEBUGCTL and reads from the DEBUGCTL and LAST*IP MSRs
without further checks and is really confused to receive a #GP during that.
To make it happy we should just make them stubs, which is exactly what SVM
already does.

Writes to DEBUGCTL that are vendor-specific are resembled to behave as if the
virtual CPU does not know them.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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Alexander Graf 2008-07-22 08:00:45 +02:00 • committed by Avi Kivity

parent 313dbd49dc

commit b5e2fec0eb

1 changed files with 17 additions and 0 deletions

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arch/x86/kvm/x86.c

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