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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2010-01-20 18:20:20 +0100 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-03-01 12:36:02 -0300 |
| commit | 727f5a23e2080b19da392f17fa3158a0941f81f5 (patch) | |
| tree | a8be1259e0f31509e7c40a773711e7815f327ee0 | |
| parent | c76de350c8a3ba770becc17eaa744dc3c7642295 (diff) | |
| download | op-kernel-dev-727f5a23e2080b19da392f17fa3158a0941f81f5.zip op-kernel-dev-727f5a23e2080b19da392f17fa3158a0941f81f5.tar.gz | |
KVM: SVM: Trap all debug register accesses
To enable proper debug register emulation under all conditions, trap
access to all DR0..7. This may be optimized later on.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| -rw-r--r-- | arch/x86/kvm/svm.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4295dfc..a281368 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -554,13 +554,19 @@ static void init_vmcb(struct vcpu_svm *svm) control->intercept_dr_read = INTERCEPT_DR0_MASK | INTERCEPT_DR1_MASK | INTERCEPT_DR2_MASK | - INTERCEPT_DR3_MASK; + INTERCEPT_DR3_MASK | + INTERCEPT_DR4_MASK | + INTERCEPT_DR5_MASK | + INTERCEPT_DR6_MASK | + INTERCEPT_DR7_MASK; control->intercept_dr_write = INTERCEPT_DR0_MASK | INTERCEPT_DR1_MASK | INTERCEPT_DR2_MASK | INTERCEPT_DR3_MASK | + INTERCEPT_DR4_MASK | INTERCEPT_DR5_MASK | + INTERCEPT_DR6_MASK | INTERCEPT_DR7_MASK; control->intercept_exceptions = (1 << PF_VECTOR) | @@ -2319,11 +2325,17 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm) = { [SVM_EXIT_READ_DR1] = emulate_on_interception, [SVM_EXIT_READ_DR2] = emulate_on_interception, [SVM_EXIT_READ_DR3] = emulate_on_interception, + [SVM_EXIT_READ_DR4] = emulate_on_interception, + [SVM_EXIT_READ_DR5] = emulate_on_interception, + [SVM_EXIT_READ_DR6] = emulate_on_interception, + [SVM_EXIT_READ_DR7] = emulate_on_interception, [SVM_EXIT_WRITE_DR0] = emulate_on_interception, [SVM_EXIT_WRITE_DR1] = emulate_on_interception, [SVM_EXIT_WRITE_DR2] = emulate_on_interception, [SVM_EXIT_WRITE_DR3] = emulate_on_interception, + [SVM_EXIT_WRITE_DR4] = emulate_on_interception, [SVM_EXIT_WRITE_DR5] = emulate_on_interception, + [SVM_EXIT_WRITE_DR6] = emulate_on_interception, [SVM_EXIT_WRITE_DR7] = emulate_on_interception, [SVM_EXIT_EXCP_BASE + DB_VECTOR] = db_interception, [SVM_EXIT_EXCP_BASE + BP_VECTOR] = bp_interception, |
