2 files changed, 58 insertions, 0 deletions

diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index 93955c7c233ee..bca117436cc83 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -1146,3 +1146,55 @@ vm_set_intinfo(struct vmctx *ctx, int vcpu, uint64_t info1)
 	error = ioctl(ctx->fd, VM_SET_INTINFO, &vmii);
 	return (error);
 }
+
+int
+vm_rtc_write(struct vmctx *ctx, int offset, uint8_t value)
+{
+	struct vm_rtc_data rtcdata;
+	int error;
+
+	bzero(&rtcdata, sizeof(struct vm_rtc_data));
+	rtcdata.offset = offset;
+	rtcdata.value = value;
+	error = ioctl(ctx->fd, VM_RTC_WRITE, &rtcdata);
+	return (error);
+}
+
+int
+vm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval)
+{
+	struct vm_rtc_data rtcdata;
+	int error;
+
+	bzero(&rtcdata, sizeof(struct vm_rtc_data));
+	rtcdata.offset = offset;
+	error = ioctl(ctx->fd, VM_RTC_READ, &rtcdata);
+	if (error == 0)
+		*retval = rtcdata.value;
+	return (error);
+}
+
+int
+vm_rtc_settime(struct vmctx *ctx, time_t secs)
+{
+	struct vm_rtc_time rtctime;
+	int error;
+
+	bzero(&rtctime, sizeof(struct vm_rtc_time));
+	rtctime.secs = secs;
+	error = ioctl(ctx->fd, VM_RTC_SETTIME, &rtctime);
+	return (error);
+}
+
+int
+vm_rtc_gettime(struct vmctx *ctx, time_t *secs)
+{
+	struct vm_rtc_time rtctime;
+	int error;
+
+	bzero(&rtctime, sizeof(struct vm_rtc_time));
+	error = ioctl(ctx->fd, VM_RTC_GETTIME, &rtctime);
+	if (error == 0)
+		*secs = rtctime.secs;
+	return (error);
+}
diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h
index fbb6ddd3acfbb..b13443125a05c 100644
--- a/lib/libvmmapi/vmmapi.h
+++ b/lib/libvmmapi/vmmapi.h
@@ -133,6 +133,12 @@ void	vm_copyin(struct vmctx *ctx, int vcpu, struct iovec *guest_iov,
 void	vm_copyout(struct vmctx *ctx, int vcpu, const void *host_src,
 	    struct iovec *guest_iov, size_t len);
 
+/* RTC */
+int	vm_rtc_write(struct vmctx *ctx, int offset, uint8_t value);
+int	vm_rtc_read(struct vmctx *ctx, int offset, uint8_t *retval);
+int	vm_rtc_settime(struct vmctx *ctx, time_t secs);
+int	vm_rtc_gettime(struct vmctx *ctx, time_t *secs);
+
 /* Reset vcpu register state */
 int	vcpu_reset(struct vmctx *ctx, int vcpu);