svn commit: r267096 - projects/bhyve_svm/sys/amd64/vmm/amd

[Peter Grehan]

Author: grehan
Date: Thu Jun  5 06:29:18 2014
New Revision: 267096
URL: http://svnweb.freebsd.org/changeset/base/267096

Log:
  Allow the guest's CR2 value to be read/written.
  This is required for page-fault injection.

Modified:
  projects/bhyve_svm/sys/amd64/vmm/amd/vmcb.c

Modified: projects/bhyve_svm/sys/amd64/vmm/amd/vmcb.c
==============================================================================
--- projects/bhyve_svm/sys/amd64/vmm/amd/vmcb.c	Thu Jun  5 06:00:08 2014	(r267095)
+++ projects/bhyve_svm/sys/amd64/vmm/amd/vmcb.c	Thu Jun  5 06:29:18 2014	(r267096)
@@ -152,6 +152,10 @@ vmcb_read(struct vmcb *vmcb, int ident, 
 		*retval = state->cr0;
 		break;
 
+	case VM_REG_GUEST_CR2:
+		*retval = state->cr2;
+		break;
+
 	case VM_REG_GUEST_CR3:
 		*retval = state->cr3;
 		break;
@@ -230,6 +234,10 @@ vmcb_write(struct vmcb *vmcb, int ident,
 		state->cr0 = val;
 		break;
 
+	case VM_REG_GUEST_CR2:
+		state->cr2 = val;
+		break;
+
 	case VM_REG_GUEST_CR3:
 		state->cr3 = val;
 		break;