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-rw-r--r--target/i386/svm.h2
-rw-r--r--target/i386/tcg/sysemu/svm_helper.c9
2 files changed, 10 insertions, 1 deletions
diff --git a/target/i386/svm.h b/target/i386/svm.h
index adc058dc76..4bde9f3475 100644
--- a/target/i386/svm.h
+++ b/target/i386/svm.h
@@ -140,6 +140,8 @@
#define SVM_MSRPM_SIZE (1ULL << 13)
#define SVM_IOPM_SIZE ((1ULL << 13) + 1)
+#define SVM_DR_RESERVED_MASK 0xffffffff00000000ULL
+
struct QEMU_PACKED vmcb_control_area {
uint16_t intercept_cr_read;
uint16_t intercept_cr_write;
diff --git a/target/i386/tcg/sysemu/svm_helper.c b/target/i386/tcg/sysemu/svm_helper.c
index fa701829e5..047f31628e 100644
--- a/target/i386/tcg/sysemu/svm_helper.c
+++ b/target/i386/tcg/sysemu/svm_helper.c
@@ -269,7 +269,14 @@ void helper_vmrun(CPUX86State *env, int aflag, int next_eip_addend)
env->dr[6] = x86_ldq_phys(cs,
env->vm_vmcb + offsetof(struct vmcb, save.dr6));
- /* FIXME: guest state consistency checks */
+#ifdef TARGET_X86_64
+ if (env->dr[6] & SVM_DR_RESERVED_MASK) {
+ cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC());
+ }
+ if (env->dr[7] & SVM_DR_RESERVED_MASK) {
+ cpu_vmexit(env, SVM_EXIT_ERR, 0, GETPC());
+ }
+#endif
switch (x86_ldub_phys(cs,
env->vm_vmcb + offsetof(struct vmcb, control.tlb_ctl))) {