Revision 8ab934f9
b/cpu-common.h | ||
---|---|---|
65 | 65 |
void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); |
66 | 66 |
/* This should only be used for ram local to a device. */ |
67 | 67 |
void *qemu_get_ram_ptr(ram_addr_t addr); |
68 |
void *qemu_ram_ptr_length(target_phys_addr_t addr, target_phys_addr_t *size);
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|
68 |
void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size);
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|
69 | 69 |
/* Same but slower, to use for migration, where the order of |
70 | 70 |
* RAMBlocks must not change. */ |
71 | 71 |
void *qemu_safe_ram_ptr(ram_addr_t addr); |
b/exec.c | ||
---|---|---|
3167 | 3167 |
|
3168 | 3168 |
/* Return a host pointer to guest's ram. Similar to qemu_get_ram_ptr |
3169 | 3169 |
* but takes a size argument */ |
3170 |
void *qemu_ram_ptr_length(target_phys_addr_t addr, target_phys_addr_t *size)
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|
3170 |
void *qemu_ram_ptr_length(ram_addr_t addr, ram_addr_t *size)
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|
3171 | 3171 |
{ |
3172 |
if (*size == 0) { |
|
3173 |
return NULL; |
|
3174 |
} |
|
3172 | 3175 |
if (xen_enabled()) { |
3173 | 3176 |
return xen_map_cache(addr, *size, 1); |
3174 | 3177 |
} else { |
... | ... | |
3184 | 3187 |
|
3185 | 3188 |
fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
3186 | 3189 |
abort(); |
3187 |
|
|
3188 |
*size = 0; |
|
3189 |
return NULL; |
|
3190 | 3190 |
} |
3191 | 3191 |
} |
3192 | 3192 |
|
... | ... | |
4052 | 4052 |
target_phys_addr_t page; |
4053 | 4053 |
unsigned long pd; |
4054 | 4054 |
PhysPageDesc *p; |
4055 |
target_phys_addr_t addr1 = addr; |
|
4055 |
ram_addr_t raddr = ULONG_MAX; |
|
4056 |
ram_addr_t rlen; |
|
4057 |
void *ret; |
|
4056 | 4058 |
|
4057 | 4059 |
while (len > 0) { |
4058 | 4060 |
page = addr & TARGET_PAGE_MASK; |
... | ... | |
4080 | 4082 |
*plen = l; |
4081 | 4083 |
return bounce.buffer; |
4082 | 4084 |
} |
4085 |
if (!todo) { |
|
4086 |
raddr = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
|
4087 |
} |
|
4083 | 4088 |
|
4084 | 4089 |
len -= l; |
4085 | 4090 |
addr += l; |
4086 | 4091 |
todo += l; |
4087 | 4092 |
} |
4088 |
*plen = todo; |
|
4089 |
return qemu_ram_ptr_length(addr1, plen); |
|
4093 |
rlen = todo; |
|
4094 |
ret = qemu_ram_ptr_length(raddr, &rlen); |
|
4095 |
*plen = rlen; |
|
4096 |
return ret; |
|
4090 | 4097 |
} |
4091 | 4098 |
|
4092 | 4099 |
/* Unmaps a memory region previously mapped by cpu_physical_memory_map(). |
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