[PATCH] pl031: Update last RTCLR value on write in case it's read back

[Jessica Clarke <jrtc27@jrtc27.com>]

The PL031 allows you to read RTCLR, which is meant to give you the last
value written. PL031State has an lr field which is used when reading
from RTCLR, and is present in the VM migration state, but we never
actually update it, so it always reads as its initial 0 value.

Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
---
 hw/rtc/pl031.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/rtc/pl031.c b/hw/rtc/pl031.c
index 837b0bdf9b..563bb4b446 100644
--- a/hw/rtc/pl031.c
+++ b/hw/rtc/pl031.c
@@ -141,6 +141,7 @@ static void pl031_write(void * opaque, hwaddr offset,
         g_autofree const char *qom_path = object_get_canonical_path(opaque);
         struct tm tm;
 
+        s->lr = value;
         s->tick_offset += value - pl031_get_count(s);
 
         qemu_get_timedate(&tm, s->tick_offset);
-- 
2.34.1