Home Explore Help
Register Sign In
phyus
/
linux-vybrid_public
8
0
Fork 0
Files Issues 0 Pull Requests 0 Wiki
Browse Source

KVM: Communicate cr8 changes to userspace

This allows running 64-bit Windows.

Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Yang, Sheng 18 years ago
parent
7e66f350cf
commit
253abdee5e
2 changed files with 3 additions and 1 deletions
Unified View Show Diff Stats
  1. 2 1
      drivers/kvm/vmx.c
  2. 1 0
      include/linux/kvm.h

+ 2 - 1
drivers/kvm/vmx.c
View File 

@@ -1831,7 +1831,8 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 
 			vcpu_load_rsp_rip(vcpu);
 
 			vcpu_load_rsp_rip(vcpu);
 
 			set_cr8(vcpu, vcpu->regs[reg]);
 
 			set_cr8(vcpu, vcpu->regs[reg]);
 
 			skip_emulated_instruction(vcpu);
 
 			skip_emulated_instruction(vcpu);
 
-			return 1;
 
+			kvm_run->exit_reason = KVM_EXIT_SET_TPR;
 
+			return 0;
 
 		};
 
 		};
 
 		break;
 
 		break;
 
 	case 2: /* clts */
 
 	case 2: /* clts */

+ 1 - 0
include/linux/kvm.h
View File 

@@ -46,6 +46,7 @@ enum kvm_exit_reason {
 
 	KVM_EXIT_SHUTDOWN         = 8,
 
 	KVM_EXIT_SHUTDOWN         = 8,
 
 	KVM_EXIT_FAIL_ENTRY       = 9,
 
 	KVM_EXIT_FAIL_ENTRY       = 9,
 
 	KVM_EXIT_INTR             = 10,
 
 	KVM_EXIT_INTR             = 10,
 
+	KVM_EXIT_SET_TPR          = 11
 
 };
 
 };
 
 
 
 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
 
 /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */