KVM: nVMX: Fix switching of debug state

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First of all, do not blindly overwrite GUEST_DR7 on L2 entry. The host
may have guest debugging enabled. Then properly reset DR7 and DEBUG_CTL
on L2->L1 switch as specified in the SDM.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

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Jan Kiszka 2013-03-03 13:05:44 +01:00 • committed by Marcelo Tosatti

parent 16014753b1

commit 503cd0c50a

1 changed files with 4 additions and 1 deletions

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arch/x86/kvm/vmx.c

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