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[Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory.
From: |
Anthony PERARD |
Subject: |
[Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory. |
Date: |
Tue, 17 Jul 2012 14:30:04 +0100 |
This patch add some calls to xen_modified_memory to notify Xen about dirtybits
during migration.
Signed-off-by: Anthony PERARD <address@hidden>
---
exec.c | 4 ++++
memory.c | 2 ++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/exec.c b/exec.c
index c9fa17d..9f7a4f7 100644
--- a/exec.c
+++ b/exec.c
@@ -3438,6 +3438,7 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
uint8_t *buf,
cpu_physical_memory_set_dirty_flags(
addr1, (0xff & ~CODE_DIRTY_FLAG));
}
+ xen_modified_memory(addr1, TARGET_PAGE_SIZE);
qemu_put_ram_ptr(ptr);
}
} else {
@@ -3623,6 +3624,7 @@ void cpu_physical_memory_unmap(void *buffer,
target_phys_addr_t len,
if (buffer != bounce.buffer) {
if (is_write) {
ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer);
+ xen_modified_memory(addr1, access_len);
while (access_len) {
unsigned l;
l = TARGET_PAGE_SIZE;
@@ -3947,6 +3949,7 @@ static inline void stl_phys_internal(target_phys_addr_t
addr, uint32_t val,
cpu_physical_memory_set_dirty_flags(addr1,
(0xff & ~CODE_DIRTY_FLAG));
}
+ xen_modified_memory(addr1, 4);
}
}
@@ -4020,6 +4023,7 @@ static inline void stw_phys_internal(target_phys_addr_t
addr, uint32_t val,
cpu_physical_memory_set_dirty_flags(addr1,
(0xff & ~CODE_DIRTY_FLAG));
}
+ xen_modified_memory(addr1, 2);
}
}
diff --git a/memory.c b/memory.c
index aab4a31..4d004e2 100644
--- a/memory.c
+++ b/memory.c
@@ -19,6 +19,7 @@
#include "bitops.h"
#include "kvm.h"
#include <assert.h>
+#include "hw/xen.h"
#define WANT_EXEC_OBSOLETE
#include "exec-obsolete.h"
@@ -1085,6 +1086,7 @@ void memory_region_set_dirty(MemoryRegion *mr,
target_phys_addr_t addr,
target_phys_addr_t size)
{
assert(mr->terminates);
+ xen_modified_memory(mr->ram_addr + addr, size);
return cpu_physical_memory_set_dirty_range(mr->ram_addr + addr, size, -1);
}
--
Anthony PERARD
- [Qemu-devel] [PATCH 0/4] Xen, introducing dirty log for migration., Anthony PERARD, 2012/07/17
- [Qemu-devel] [PATCH 2/4] xen: Introduce xen_modified_memory., Anthony PERARD, 2012/07/17
- [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory.,
Anthony PERARD <=
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Avi Kivity, 2012/07/17
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Anthony PERARD, 2012/07/17
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Avi Kivity, 2012/07/17
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Stefano Stabellini, 2012/07/17
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Avi Kivity, 2012/07/18
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Anthony PERARD, 2012/07/19
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Avi Kivity, 2012/07/19
- Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Anthony PERARD, 2012/07/19
Re: [Qemu-devel] [PATCH 3/4] exec, memory: Call to xen_modified_memory., Stefano Stabellini, 2012/07/17