Fix "MOVS" instruction memory to MMIO emulation. Currently updates to

%rdi, %rsi, etc are inadvertently bypassed along with the check to
see if the instruction needs to be repeated per the 'rep' prefix.

Add "MOVS" instruction support for the 'MMIO to MMIO' case.

Reviewed by:	neel

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index 9828876..0c15845 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -979,6 +979,18 @@ gla2gpa(struct vmctx *ctx, int vcpu, struct vm_guest_paging *paging,
 	return (error);
 }
 
+int
+vm_gla2gpa(struct vmctx *ctx, int vcpu, struct vm_guest_paging *paging,
+    uint64_t gla, int prot, uint64_t *gpa)
+{
+	int error, fault;
+
+	error = gla2gpa(ctx, vcpu, paging, gla, prot, &fault, gpa);
+	if (fault)
+		error = fault;
+	return (error);
+}
+
 #ifndef min
 #define	min(a,b)	(((a) < (b)) ? (a) : (b))
 #endif