[Qemu-devel] [PATCH 2/6] xen: add mapcache stubs

[Alexander Graf]

During the transition to get rid of CONFIG_XEN_MAPCACHE we lost the mapcache
stubs along the way. Nobody realized it because the commands were guarded by
if (xen_enabled()) clauses that made gcc optimize out the respective calls.

This patch adds the stubs again - this time in the generic xen-stubs.c

Signed-off-by: Alexander Graf <address@hidden>
---
 xen-stub.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)

diff --git a/xen-stub.c b/xen-stub.c
index efe2ab5..76d80e9 100644
--- a/xen-stub.c
+++ b/xen-stub.c
@@ -8,6 +8,7 @@
 
 #include "qemu-common.h"
 #include "hw/xen.h"
+#include "xen-mapcache.h"
 
 void xenstore_store_pv_console_info(int i, CharDriverState *chr)
 {
@@ -43,3 +44,28 @@ int xen_init(void)
 {
     return -ENOSYS;
 }
+
+/******* mapcache stubs *******/
+
+void xen_map_cache_init(void)
+{
+}
+
+uint8_t *xen_map_cache(target_phys_addr_t phys_addr, target_phys_addr_t size,
+                       uint8_t lock)
+{
+    return qemu_get_ram_ptr(phys_addr);
+}
+
+ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
+{
+    return -1;
+}
+
+void xen_invalidate_map_cache(void)
+{
+}
+
+void xen_invalidate_map_cache_entry(uint8_t *buffer)
+{
+}
-- 
1.6.0.2