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(parent: 1f03b2b) | patch
KVM: x86: Mask off reserved bit from #DB exception payload
authorOliver Upton <oupton@google.com>
Fri, 7 Feb 2020 10:36:04 +0000 (02:36 -0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Wed, 12 Feb 2020 11:34:09 +0000 (12:34 +0100)
commit307f1cfa269657c63cfe2c932386fcc24684d9dd
treea4f9f25d765671602fc6c28db0333348eb47fa9ctree | snapshot
parent1f03b2bcd0d7cad4af107339cdef80ed377fe2a8commit | diff
KVM: x86: Mask off reserved bit from #DB exception payload

KVM defines the #DB payload as compatible with the 'pending debug
exceptions' field under VMX, not DR6. Mask off bit 12 when applying the
payload to DR6, as it is reserved on DR6 but not the 'pending debug
exceptions' field.

Fixes: f10c729ff965 ("kvm: vmx: Defer setting of DR6 until #DB delivery")
Signed-off-by: Oliver Upton <oupton@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/x86.c diff | blob | history
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