[prev in list] [next in list] [prev in thread] [next in thread]
List: qemu-commits
Subject: [Qemu-commits] [COMMIT 1c7936e] Use 64bit pointer for dirty log
From: Anthony Liguori <aliguori () us ! ibm ! com>
Date: 2009-07-27 19:23:17
Message-ID: 200907271922.n6RJMm0o021742 () d01av01 ! pok ! ibm ! com
[Download RAW message or body]
From: Alexander Graf <agraf@suse.de>
Dirty logs currently get written with native "long" size. On little endian
it doesn't matter if we use uint64_t instead though, because we'd still end
up using the right bytes.
On big endian, this does become a bigger problem, so we need to ensure that
kernel and userspace talk the same language, which means getting rid of "long"
and using a defined size instead.
So I decided to use 64 bit types at all times. This doesn't break existing
targets but will in conjunction with a patch I'll send to the KVM ML make
dirty logs work with 32 bit userspace on 64 kernel with big endian.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/kvm-all.c b/kvm-all.c
index 824bb4c..9d02ce3 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -357,7 +357,7 @@ int kvm_physical_sync_dirty_bitmap(target_phys_addr_t start_addr,
for (phys_addr = mem->start_addr, addr = mem->phys_offset;
phys_addr < mem->start_addr + mem->memory_size;
phys_addr += TARGET_PAGE_SIZE, addr += TARGET_PAGE_SIZE) {
- unsigned long *bitmap = (unsigned long *)d.dirty_bitmap;
+ uint64_t *bitmap = (uint64_t *)d.dirty_bitmap;
unsigned nr = (phys_addr - mem->start_addr) >> TARGET_PAGE_BITS;
unsigned word = nr / (sizeof(*bitmap) * 8);
unsigned bit = nr % (sizeof(*bitmap) * 8);
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic