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authorMichael S. Tsirkin <mst@redhat.com>2014-12-15 22:55:32 +0200
committerMichael S. Tsirkin <mst@redhat.com>2015-01-08 13:17:54 +0200
commit9b8424d5735278ca382f11adc7c63072b632ab83 (patch)
treea7320e19b3418258eebda8d2b2164e9a9b830d3a /include/exec/cpu-all.h
parentc8d6f66ae7d0ce5f3622c19e29a2333d28dc1e9a (diff)
downloadqemu-9b8424d5735278ca382f11adc7c63072b632ab83.tar.gz
exec: split length -> used_length/max_length
This patch allows us to distinguish between two length values for each block: max_length - length of memory block that was allocated used_length - length of block used by QEMU/guest Currently, we set used_length - max_length, unconditionally. Follow-up patches allow used_length <= max_length. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/cpu-all.h')
-rw-r--r--include/exec/cpu-all.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 62f558103d..6f2130eab2 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -303,7 +303,8 @@ typedef struct RAMBlock {
struct MemoryRegion *mr;
uint8_t *host;
ram_addr_t offset;
- ram_addr_t length;
+ ram_addr_t used_length;
+ ram_addr_t max_length;
uint32_t flags;
char idstr[256];
/* Reads can take either the iothread or the ramlist lock.