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[Qemu-devel] [PULL 07/22] memory: add memory_region_ram_resize
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 07/22] memory: add memory_region_ram_resize |
Date: |
Tue, 28 Apr 2015 16:40:14 +0200 |
This is a simple MemoryRegion wrapper for qemu_ram_resize.
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;
--
2.3.5
- [Qemu-devel] [PULL 00/22] Memory, TCG, NBD, build system changes for 2015-04-27, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 01/22] translate-all: use glib for all page descriptor allocations, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 02/22] exec: Atomic access to bounce buffer, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 04/22] exec: Protect map_client_list with mutex, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 03/22] linux-user, bsd-user: Remove two calls to cpu_exec_init_all, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 05/22] exec: Notify cpu_register_map_client caller if the bounce buffer is available, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 06/22] dma-helpers: Fix race condition of continue_after_map_failure and dma_aio_cancel, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 07/22] memory: add memory_region_ram_resize,
Paolo Bonzini <=
- [Qemu-devel] [PULL 08/22] acpi-build: remove dependency from ram_addr.h, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 09/22] sun4m: fix slavio sysctrl and led register sizes, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 10/22] sb16: remove useless mixer_write_indexw, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 11/22] gus: clean up MemoryRegionPortio, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 12/22] ide: there is only one data port, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 13/22] ioport: remove wrong comment, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 14/22] ioport: loosen assertions on emulation of 16-bit ports, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 15/22] ioport: reserve the whole range of an I/O port in the AddressSpace, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 16/22] exec: Respect as_translate_internal length clamp, Paolo Bonzini, 2015/04/28
- [Qemu-devel] [PULL 18/22] milkymist: do not modify libs-softmmu, Paolo Bonzini, 2015/04/28