[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 32/38] kvm: use directly cpu_physical_memory_* api f
From: |
Juan Quintela |
Subject: |
[Qemu-devel] [PATCH 32/38] kvm: use directly cpu_physical_memory_* api for tracking dirty pages |
Date: |
Tue, 17 Dec 2013 16:26:08 +0100 |
Performance is important in this function, and we want to optimize even further.
Signed-off-by: Juan Quintela <address@hidden>
---
kvm-all.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 3937754..308dfba 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -31,6 +31,7 @@
#include "sysemu/kvm.h"
#include "qemu/bswap.h"
#include "exec/memory.h"
+#include "exec/ram_addr.h"
#include "exec/address-spaces.h"
#include "qemu/event_notifier.h"
#include "trace.h"
@@ -382,6 +383,7 @@ static int
kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
unsigned int i, j;
unsigned long page_number, c;
hwaddr addr, addr1;
+ ram_addr_t ram_addr;
unsigned int pages = int128_get64(section->size) / getpagesize();
unsigned int len = (pages + HOST_LONG_BITS - 1) / HOST_LONG_BITS;
unsigned long hpratio = getpagesize() / TARGET_PAGE_SIZE;
@@ -399,8 +401,9 @@ static int
kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
page_number = (i * HOST_LONG_BITS + j) * hpratio;
addr1 = page_number * TARGET_PAGE_SIZE;
addr = section->offset_within_region + addr1;
- memory_region_set_dirty(section->mr, addr,
- TARGET_PAGE_SIZE * hpratio);
+ ram_addr = section->mr->ram_addr + addr;
+ cpu_physical_memory_set_dirty_range(ram_addr,
+ TARGET_PAGE_SIZE *
hpratio);
} while (c != 0);
}
}
--
1.8.3.1
- [Qemu-devel] [PATCH 29/38] memory: cpu_physical_memory_set_dirty_tracking() should return void, (continued)
- [Qemu-devel] [PATCH 29/38] memory: cpu_physical_memory_set_dirty_tracking() should return void, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 26/38] memory: cpu_physical_memory_clear_dirty_range() now uses bitmap operations, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 28/38] memory: make cpu_physical_memory_reset_dirty() take a length parameter, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 30/38] memory: split cpu_physical_memory_* functions to its own include, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 31/38] memory: unfold memory_region_test_and_clear(), Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 32/38] kvm: use directly cpu_physical_memory_* api for tracking dirty pages,
Juan Quintela <=
- [Qemu-devel] [PATCH 33/38] kvm: refactor start address calculation, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 34/38] memory: move bitmap synchronization to its own function, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 35/38] memory: syncronize kvm bitmap using bitmaps operations, Juan Quintela, 2013/12/17
- [Qemu-devel] [PATCH 36/38] ram: split function that synchronizes a range, Juan Quintela, 2013/12/17