[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 01/22] memory: add memory_region_ram_resize
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 01/22] memory: add memory_region_ram_resize |
Date: |
Thu, 26 Mar 2015 18:38:19 +0100 |
This is a simple MemoryRegion wrapper for qemu_ram_resize.
Cc: Michael S. Tsirkin <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
include/exec/memory.h | 12 ++++++++++++
memory.c | 7 +++++++
2 files changed, 19 insertions(+)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 06ffa1d..a2ea587 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -605,6 +605,18 @@ int memory_region_get_fd(MemoryRegion *mr);
*/
void *memory_region_get_ram_ptr(MemoryRegion *mr);
+/* memory_region_ram_resize: Resize a RAM region.
+ *
+ * Only legal before guest might have detected the memory size: e.g. on
+ * incoming migration, or right after reset.
+ *
+ * @mr: a memory region created with @memory_region_init_resizeable_ram.
+ * @newsize: the new size the region
+ * @errp: pointer to Error*, to store an error if it happens.
+ */
+void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize,
+ Error **errp);
+
/**
* memory_region_set_log: Turn dirty logging on or off for a region.
*
diff --git a/memory.c b/memory.c
index ee3f2a8..a11e9bf 100644
--- a/memory.c
+++ b/memory.c
@@ -1452,6 +1452,13 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr)
return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK);
}
+void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error
**errp)
+{
+ assert(mr->terminates);
+
+ qemu_ram_resize(mr->ram_addr, newsize, errp);
+}
+
static void memory_region_update_coalesced_range_as(MemoryRegion *mr,
AddressSpace *as)
{
FlatView *view;
--
2.3.3
- [Qemu-devel] [PATCH 00/22] Dirty bitmap atomic access and optimizations, Paolo Bonzini, 2015/03/26
- [Qemu-devel] [PATCH 01/22] memory: add memory_region_ram_resize,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 02/22] acpi-build: remove dependency from ram_addr.h, Paolo Bonzini, 2015/03/26
- [Qemu-devel] [PATCH 03/22] memory: the only dirty memory flag for users is DIRTY_MEMORY_VGA, Paolo Bonzini, 2015/03/26
- [Qemu-devel] [PATCH 04/22] display: enable DIRTY_MEMORY_VGA tracking explicitly, Paolo Bonzini, 2015/03/26
- [Qemu-devel] [PATCH 07/22] ui/console: check memory_region_is_logging, Paolo Bonzini, 2015/03/26
- [Qemu-devel] [PATCH 05/22] memory: return bitmap from memory_region_is_logging, Paolo Bonzini, 2015/03/26