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| author | Nadav Amit <namit@cs.technion.ac.il> | 2014-11-02 11:54:45 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-11-07 15:44:04 +0100 |
| commit | 82b32774c2d00c0a12ab182c67e32e0b5e5e580a (patch) | |
| tree | 4952f26cbee010060c1b447216cc60961b9edee5 /arch/x86/include | |
| parent | 7305eb5d8cf147ce4178e723c95de15e2f001429 (diff) | |
| download | linux-82b32774c2d00c0a12ab182c67e32e0b5e5e580a.tar.gz linux-82b32774c2d00c0a12ab182c67e32e0b5e5e580a.tar.bz2 linux-82b32774c2d00c0a12ab182c67e32e0b5e5e580a.zip | |
KVM: x86: Breakpoints do not consider CS.base
x86 debug registers hold a linear address. Therefore, breakpoints detection
should consider CS.base, and check whether instruction linear address equals
(CS.base + RIP). This patch introduces a function to evaluate RIP linear
address and uses it for breakpoints detection.
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 3ac807646911..904535fe825e 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1067,6 +1067,7 @@ void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm, void kvm_define_shared_msr(unsigned index, u32 msr); int kvm_set_shared_msr(unsigned index, u64 val, u64 mask); +unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu); bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip); void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu, |