[RFC PATCH 22/26] hw/isa/lpc_ich9: Allow updating an already-running VM

[Dov Murik]

The post_load function crashed when we were loading the device state in
to an already-running guest.  This was because an existing memory region
as not deleted in ich9_lpc_rcba_update.

Signed-off-by: Dov Murik <dovmu...@linux.vnet.ibm.com>
---
 hw/isa/lpc_ich9.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index d3145bf014..1fc1af3491 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -529,9 +529,10 @@ ich9_lpc_pmcon_update(ICH9LPCState *lpc)
 static int ich9_lpc_post_load(void *opaque, int version_id)
 {
     ICH9LPCState *lpc = opaque;
+    uint32_t rcba_old = pci_get_long(lpc->d.config + ICH9_LPC_RCBA);
 
     ich9_lpc_pmbase_sci_update(lpc);
-    ich9_lpc_rcba_update(lpc, 0 /* disabled ICH9_LPC_RCBA_EN */);
+    ich9_lpc_rcba_update(lpc, rcba_old);
     ich9_lpc_pmcon_update(lpc);
     return 0;
 }
-- 
2.20.1