| commit | 8246bf52c75aa9b9b336a84f31ed2248754d0f71 | |
| author | Jan Kiszka <jan.kiszka@siemens.com> | |
| Sat, 4 Jan 2014 17:47:17 +0000 (4 18:47 +0100) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Fri, 17 Jan 2014 09:22:12 +0000 (17 10:22 +0100) | ||
| tree | 099477dbaefe4a61c5c117097b54cf922acdd23d | treesnapshot (tar.gz zip) |
| parent | 73aaf249ee2287b4686ff079dcbdbbb658156e64 | commitdiff |
KVM: VMX: Fix DR6 update on #DB exception
According to the SDM, only bits 0-3 of DR6 "may" be cleared by "certain"
debug exception. So do update them on #DB exception in KVM, but leave
the rest alone, only setting BD and BS in addition to already set bits
in DR6. This also aligns us with kvm_vcpu_check_singlestep.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
According to the SDM, only bits 0-3 of DR6 "may" be cleared by "certain"
debug exception. So do update them on #DB exception in KVM, but leave
the rest alone, only setting BD and BS in addition to already set bits
in DR6. This also aligns us with kvm_vcpu_check_singlestep.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| arch/x86/kvm/vmx.c | diffblobblamehistory |