Patchwork [1/3] xen: add mapcache stubs

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Submitter Alexander Graf
Date July 17, 2011, 5:39 a.m.
Message ID <1310881151-31626-2-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/105277/
State New
Headers show

Comments

Alexander Graf - July 17, 2011, 5:39 a.m.
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 <agraf@suse.de>
---
 xen-stub.c |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)

Patch

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)
+{
+}