physmem: Always pass offset + addr to xen_map_cache

Always pass address with offset to xen_map_cache().
This is in preparation for support for grant mappings.

Since this is within a block that checks for offset == 0,
this has no functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240529140739.1387692-5-edgar.iglesias@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

diff --git a/system/physmem.c b/system/physmem.c
index 342b7a8fd4388aedc3437d36c796a44a0a8ea7bf..5e6257ef659b70f05fc7570d1ac78bcba4419c13 100644 (file)
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -2230,7 +2230,8 @@ static void *qemu_ram_ptr_length(RAMBlock *block, ram_addr_t addr,
          * In that case just map the requested area.
          */
         if (block->offset == 0) {
-            return xen_map_cache(block->mr, addr, len, lock, lock,
+            return xen_map_cache(block->mr, block->offset + addr,
+                                 len, lock, lock,
                                  is_write);
         }