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memory: add a readonly attribute to MemoryRegionSection

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.readonly cannot be obtained from the MemoryRegion, since it is
inherited from aliases (so you can have a MemoryRegion mapped RW
at one address and RO at another).  Record it in a MemoryRegionSection
for listeners.

Signed-off-by: Avi Kivity <avi@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Avi Kivity 2012-02-08 17:01:23 +02:00
parent 80a1ea3748
commit 7a8499e88b
2 changed files with 7 additions and 0 deletions
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2
memory.h
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@ -160,6 +160,7 @@ typedef struct MemoryRegionSection MemoryRegionSection;
* @size: the size of the section; will not exceed @mr's boundaries
* @offset_within_address_space: the address of the first byte of the section
* relative to the region's address space
* @readonly: writes to this section are ignored
*/
struct MemoryRegionSection {
MemoryRegion *mr;
@ -167,6 +168,7 @@ struct MemoryRegionSection {
target_phys_addr_t offset_within_region;
uint64_t size;
target_phys_addr_t offset_within_address_space;
bool readonly;
};
typedef struct MemoryListener MemoryListener;