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memory: make section size a 128-bit integer

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So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes

An IOMMU however cannot be eliminated by the memory core, and may have
an artificial size, hence we may need 65 bits to represent its size.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-05-27 10:08:27 +02:00
parent 733d5ef527
commit 052e87b073
15 changed files with 85 additions and 52 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/exec/memory.h
View file

@ -26,6 +26,9 @@
#include "exec/ioport.h"
#include "qemu/int128.h"
#define MAX_PHYS_ADDR_SPACE_BITS 62
#define MAX_PHYS_ADDR (((hwaddr)1 << MAX_PHYS_ADDR_SPACE_BITS) - 1)
typedef struct MemoryRegionOps MemoryRegionOps;
typedef struct MemoryRegionPortio MemoryRegionPortio;
typedef struct MemoryRegionMmio MemoryRegionMmio;
@ -185,7 +188,7 @@ struct MemoryRegionSection {
MemoryRegion *mr;
AddressSpace *address_space;
hwaddr offset_within_region;
uint64_t size;
Int128 size;
hwaddr offset_within_address_space;
bool readonly;
};