system: Pass RAM MemoryRegion and is_write in xen_map_cache()

Propagate MR and is_write to xen_map_cache().
This is in preparation for adding support for grant mappings.

No functional change.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-ID: <20240430164939.925307-14-edgar.iglesias@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/hw/xen/xen-mapcache.c b/hw/xen/xen-mapcache.c
index 6fb2db2612..fa6813b1ad 100644
--- a/hw/xen/xen-mapcache.c
+++ b/hw/xen/xen-mapcache.c
@@ -254,7 +254,7 @@ static void xen_remap_bucket(MapCache *mc,
 
 static uint8_t *xen_map_cache_unlocked(MapCache *mc,
                                        hwaddr phys_addr, hwaddr size,
-                                       uint8_t lock, bool dma)
+                                       uint8_t lock, bool dma, bool is_write)
 {
     MapCacheEntry *entry, *pentry = NULL,
                   *free_entry = NULL, *free_pentry = NULL;
@@ -377,13 +377,15 @@ tryagain:
     return mc->last_entry->vaddr_base + address_offset;
 }
 
-uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size,
-                       uint8_t lock, bool dma)
+uint8_t *xen_map_cache(MemoryRegion *mr,
+                       hwaddr phys_addr, hwaddr size,
+                       uint8_t lock, bool dma,
+                       bool is_write)
 {
     uint8_t *p;
 
     mapcache_lock(mapcache);
-    p = xen_map_cache_unlocked(mapcache, phys_addr, size, lock, dma);
+    p = xen_map_cache_unlocked(mapcache, phys_addr, size, lock, dma, is_write);
     mapcache_unlock(mapcache);
     return p;
 }