From a2b257d6212ade772473f86bf0637480b2578a7e Mon Sep 17 00:00:00 2001
From: Igor Mammedov
Date: Fri, 31 Oct 2014 16:38:37 +0000
Subject: memory: expose alignment used for allocating RAM as MemoryRegion API

introduce memory_region_get_alignment() that returns
underlying memory block alignment or 0 if it's not
relevant/implemented for backend.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/exec/exec-all.h | 2 +-
 include/exec/memory.h   | 2 ++
 include/qemu/osdep.h    | 3 ++-
 3 files changed, 5 insertions(+), 2 deletions(-)

(limited to 'include')

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 421a142a0d..0844885edd 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -333,7 +333,7 @@ extern uintptr_t tci_tb_ptr;
 
 #if !defined(CONFIG_USER_ONLY)
 
-void phys_mem_set_alloc(void *(*alloc)(size_t));
+void phys_mem_set_alloc(void *(*alloc)(size_t, uint64_t *align));
 
 struct MemoryRegion *iotlb_to_region(AddressSpace *as, hwaddr index);
 bool io_mem_read(struct MemoryRegion *mr, hwaddr addr,
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 74a58b4883..f64ab5e3e5 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -146,6 +146,7 @@ struct MemoryRegion {
     hwaddr addr;
     void (*destructor)(MemoryRegion *mr);
     ram_addr_t ram_addr;
+    uint64_t align;
     bool subpage;
     bool terminates;
     bool romd_mode;
@@ -838,6 +839,7 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr,
  */
 ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr);
 
+uint64_t memory_region_get_alignment(const MemoryRegion *mr);
 /**
  * memory_region_del_subregion: Remove a subregion.
  *
diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h
index c0324344d5..b3300cc239 100644
--- a/include/qemu/osdep.h
+++ b/include/qemu/osdep.h
@@ -5,6 +5,7 @@
 #include <stdarg.h>
 #include <stddef.h>
 #include <stdbool.h>
+#include <stdint.h>
 #include <sys/types.h>
 #ifdef __OpenBSD__
 #include <sys/signal.h>
@@ -103,7 +104,7 @@ typedef signed int              int_fast16_t;
 int qemu_daemon(int nochdir, int noclose);
 void *qemu_try_memalign(size_t alignment, size_t size);
 void *qemu_memalign(size_t alignment, size_t size);
-void *qemu_anon_ram_alloc(size_t size);
+void *qemu_anon_ram_alloc(size_t size, uint64_t *align);
 void qemu_vfree(void *ptr);
 void qemu_anon_ram_free(void *ptr, size_t size);
 
-- 
cgit v1.2.3-55-g7522