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KVM: x86: check DR6/7 high-bits are clear only on long-mode
authorNadav Amit <nadav.amit@gmail.com>
Wed, 18 Jun 2014 14:19:23 +0000 (17:19 +0300)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 19 Jun 2014 10:52:14 +0000 (12:52 +0200)
commit5777392e83c96e3a0799dd2985598e0fc76cf4aa
treeb9b9d7ee6afe5d0e1864750b292abd2bb11fea53tree | snapshot
parent5381417f6a51293e7b8af1eb18aefa5d47976a71commit | diff
KVM: x86: check DR6/7 high-bits are clear only on long-mode

When the guest sets DR6 and DR7, KVM asserts the high 32-bits are clear, and
otherwise injects a #GP exception. This exception should only be injected only
if running in long-mode.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx.c diff | blob | history
arch/x86/kvm/x86.h diff | blob | history
Domain: System / Kernel;