DM: vrtc code cleanup

- Move the variable local_time from main.c to rtc.c
- Change vrtc_init to return int instead of pointer to vrtc. We do
  track vrtc in struct vmctx.

Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>

Author: fyin1

devicemodel/core/main.c

@@ -577,7 +577,6 @@ main(int argc, char *argv[])
 {
 	int c, error, gdb_port, err;
 	int max_vcpus, mptgen, memflags;
-	int rtc_localtime;
 	struct vmctx *ctx;
 	size_t memsize;
 	char *optstr;
@@ -588,7 +587,6 @@ main(int argc, char *argv[])
 	guest_ncpus = 1;
 	memsize = 256 * MB;
 	mptgen = 1;
-	rtc_localtime = 1;
 	memflags = 0;
 	quit_vm_loop = 0;
 	hugetlb = 0;
@@ -669,7 +667,7 @@ main(int argc, char *argv[])
 			strictio = 1;
 			break;
 		case 'u':
-			rtc_localtime = 0;
+			vrtc_enable_localtime(0);
 			break;
 		case 'U':
 			guest_uuid_str = optarg;
@@ -785,7 +783,7 @@ main(int argc, char *argv[])
 		ioapic_init(ctx);
 		ioc_init();
 
-		vrtc_init(ctx, rtc_localtime);
+		vrtc_init(ctx);
 		sci_init(ctx);
 		init_bvmcons();
 		monitor_init(ctx);

devicemodel/hw/platform/rtc.c

@@ -144,6 +144,8 @@ static const int month_days[12] = {
 	31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
 };
 
+static int local_time = 1;
+
 /*
  * This inline avoids some unnecessary modulo operations
  * as compared with the usual macro:
@@ -1096,8 +1098,14 @@ vrtc_reset(struct vrtc *vrtc)
 	pthread_mutex_unlock(&vrtc->mtx);
 }
 
-struct vrtc *
-vrtc_init(struct vmctx *ctx, int local_time)
+void
+vrtc_enable_localtime(int l_time)
+{
+	local_time = l_time;
+}
+
+int
+vrtc_init(struct vmctx *ctx)
 {
 	struct vrtc *vrtc;
 	struct rtcdev *rtc;
@@ -1158,7 +1166,7 @@ vrtc_init(struct vmctx *ctx, int local_time)
 	secs_to_rtc(curtime, vrtc, 0);
 	pthread_mutex_unlock(&vrtc->mtx);
 
-	return vrtc;
+	return 0;
 }
 
 void

devicemodel/include/rtc.h

@@ -36,7 +36,8 @@
 struct vrtc;
 struct vmctx;
 
-struct vrtc  *vrtc_init(struct vmctx *ctx, int local_time);
+int vrtc_init(struct vmctx *ctx);
+void vrtc_enable_localtime(int l_time);
 void vrtc_deinit(struct vmctx *ctx);
 void vrtc_reset(struct vrtc *vrtc);
 time_t vrtc_get_time(struct vrtc *vrtc);

devicemodel/include/vmmapi.h

@@ -34,8 +34,6 @@
 #include "types.h"
 #include "vmm.h"
 
-#include "atkbdc.h"
-
 /*
  * API version for out-of-tree consumers for making compile time decisions.
  */
@@ -47,8 +45,6 @@
 #define ALIGN_UP(x, align)	(((x) + ((align)-1)) & ~((align)-1))
 #define ALIGN_DOWN(x, align)	((x) & ~((align)-1))
 
-struct iovec;
-
 struct vmctx {
 	int     fd;
 	int     vmid;
@@ -64,8 +60,8 @@ struct vmctx {
 	uuid_t	vm_uuid;
 
 	/* fields to track virtual devices */
-	struct atkbdc_base *atkbdc_base;
-	struct vrtc *vrtc;
+	void *atkbdc_base;
+	void *vrtc;
 };
 
 /*