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(parent: 1601475) | patch
KVM: nVMX: Fix switching of debug state
authorJan Kiszka <jan.kiszka@siemens.com>
Sun, 3 Mar 2013 12:05:44 +0000 (13:05 +0100)
committerMarcelo Tosatti <mtosatti@redhat.com>
Tue, 5 Mar 2013 00:37:28 +0000 (21:37 -0300)
commit503cd0c50ac7161eb5c3891b48b620cb0a5521cd
tree6376b4be8ae4a6df2e972b497b48bcac032aaa96tree | snapshot
parent16014753b10b76385600cd59450a70b8650c72cbcommit | diff
KVM: nVMX: Fix switching of debug state

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>
arch/x86/kvm/vmx.c diff | blob | history
John Crispins staging tree