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[Qemu-devel] [PATCH 07/10] memory: add a readonly attribute to MemoryReg
From: |
Avi Kivity |
Subject: |
[Qemu-devel] [PATCH 07/10] memory: add a readonly attribute to MemoryRegionSection |
Date: |
Wed, 8 Feb 2012 17:27:56 +0200 |
.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 <address@hidden>
---
memory.c | 5 +++++
memory.h | 2 ++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/memory.c b/memory.c
index e1a31d4..4f37152 100644
--- a/memory.c
+++ b/memory.c
@@ -112,6 +112,7 @@ static AddrRange addrrange_intersection(AddrRange r1,
AddrRange r2)
.offset_within_region = (fr)->offset_in_region, \
.size = int128_get64((fr)->addr.size), \
.offset_within_address_space = int128_get64((fr)->addr.start), \
+ .readonly = (fr)->readonly, \
})
struct CoalescedMemoryRange {
@@ -342,6 +343,7 @@ static void as_memory_range_add(AddressSpace *as, FlatRange
*fr)
.offset_within_address_space = int128_get64(fr->addr.start),
.offset_within_region = fr->offset_in_region,
.size = int128_get64(fr->addr.size),
+ .readonly = fr->readonly,
};
cpu_register_physical_memory_log(§ion, fr->readable, fr->readonly);
@@ -354,6 +356,7 @@ static void as_memory_range_del(AddressSpace *as, FlatRange
*fr)
.offset_within_address_space = int128_get64(fr->addr.start),
.offset_within_region = int128_get64(fr->addr.start),
.size = int128_get64(fr->addr.size),
+ .readonly = fr->readonly,
};
cpu_register_physical_memory_log(§ion, true, false);
@@ -1437,6 +1440,7 @@ MemoryRegionSection memory_region_find(MemoryRegion
*address_space,
fr->addr.start));
ret.size = int128_get64(range.size);
ret.offset_within_address_space = int128_get64(range.start);
+ ret.readonly = fr->readonly;
return ret;
}
@@ -1479,6 +1483,7 @@ static void listener_add_address_space(MemoryListener
*listener,
.offset_within_region = fr->offset_in_region,
.size = int128_get64(fr->addr.size),
.offset_within_address_space = int128_get64(fr->addr.start),
+ .readonly = fr->readonly,
};
listener->region_add(listener, §ion);
}
diff --git a/memory.h b/memory.h
index 84bb67c..1d99cee 100644
--- a/memory.h
+++ b/memory.h
@@ -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;
--
1.7.9
- [Qemu-devel] [PATCH 00/10] Remove AddressSpaceOps, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 06/10] memory: move ioeventfd ops to MemoryListener, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 05/10] memory: code motion: move MEMORY_LISTENER_CALL(), Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 04/10] memory: switch memory listeners to a QTAILQ, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 02/10] memory: remove memory_region_set_offset(), Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 03/10] memory: add shorthand for invoking a callback on all listeners, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 08/10] memory: don't pass ->readable attribute to cpu_register_physical_memory_log, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 07/10] memory: add a readonly attribute to MemoryRegionSection,
Avi Kivity <=
- [Qemu-devel] [PATCH 01/10] ioport: change portio_list not to use memory_region_set_offset(), Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 10/10] memory: drop AddressSpaceOps, Avi Kivity, 2012/02/08
- [Qemu-devel] [PATCH 09/10] memory: use a MemoryListener for core memory map updates too, Avi Kivity, 2012/02/08
- Re: [Qemu-devel] [PATCH 00/10] Remove AddressSpaceOps, Avi Kivity, 2012/02/08
- Re: [Qemu-devel] [PATCH 00/10] Remove AddressSpaceOps, Richard Henderson, 2012/02/08