physmem: qemu_ram_get_fd_offset

Define qemu_ram_get_fd_offset, so CPR can map a memory region using
IOMMU_IOAS_MAP_FILE in a subsequent patch.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-8-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index a68485547d5002e84306f5d82185fa7c6b2c2fcd..9b658a3f48f78ecd9ac49464c44d7e3dc3e5644c 100644 (file)
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -85,6 +85,7 @@ void qemu_ram_unset_idstr(RAMBlock *block);
 const char *qemu_ram_get_idstr(RAMBlock *rb);
 void *qemu_ram_get_host_addr(RAMBlock *rb);
 ram_addr_t qemu_ram_get_offset(RAMBlock *rb);
+ram_addr_t qemu_ram_get_fd_offset(RAMBlock *rb);
 ram_addr_t qemu_ram_get_used_length(RAMBlock *rb);
 ram_addr_t qemu_ram_get_max_length(RAMBlock *rb);
 bool qemu_ram_is_shared(RAMBlock *rb);

diff --git a/system/physmem.c b/system/physmem.c
index ff0ca40222d3471f746632a21195dab1783e8345..130c148ffb5c1f8336bef0d346ee1e8035771fcf 100644 (file)
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -1593,6 +1593,11 @@ ram_addr_t qemu_ram_get_offset(RAMBlock *rb)
     return rb->offset;
 }
 
+ram_addr_t qemu_ram_get_fd_offset(RAMBlock *rb)
+{
+    return rb->fd_offset;
+}
+
 ram_addr_t qemu_ram_get_used_length(RAMBlock *rb)
 {
     return rb->used_length;