Revision d17b5288 exec.c
| b/exec.c | ||
|---|---|---|
| 2767 | 2767 |
} |
| 2768 | 2768 |
#endif |
| 2769 | 2769 |
|
| 2770 |
static ram_addr_t find_ram_offset(ram_addr_t size) |
|
| 2771 |
{
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| 2772 |
RAMBlock *block; |
|
| 2773 |
ram_addr_t last = 0; |
|
| 2774 |
|
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| 2775 |
QLIST_FOREACH(block, &ram_list.blocks, next) |
|
| 2776 |
last = MAX(last, block->offset + block->length); |
|
| 2777 |
|
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| 2778 |
return last; |
|
| 2779 |
} |
|
| 2780 |
|
|
| 2770 | 2781 |
ram_addr_t qemu_ram_alloc(ram_addr_t size) |
| 2771 | 2782 |
{
|
| 2772 | 2783 |
RAMBlock *new_block; |
| ... | ... | |
| 2800 | 2811 |
madvise(new_block->host, size, MADV_MERGEABLE); |
| 2801 | 2812 |
#endif |
| 2802 | 2813 |
} |
| 2803 |
new_block->offset = ram_list.last_offset;
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| 2814 |
new_block->offset = find_ram_offset(size);
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|
| 2804 | 2815 |
new_block->length = size; |
| 2805 | 2816 |
|
| 2806 | 2817 |
QLIST_INSERT_HEAD(&ram_list.blocks, new_block, next); |
| 2807 | 2818 |
|
| 2808 | 2819 |
ram_list.phys_dirty = qemu_realloc(ram_list.phys_dirty, |
| 2809 |
(ram_list.last_offset + size) >> TARGET_PAGE_BITS);
|
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| 2810 |
memset(ram_list.phys_dirty + (ram_list.last_offset >> TARGET_PAGE_BITS),
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| 2820 |
(new_block->offset + size) >> TARGET_PAGE_BITS);
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| 2821 |
memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS),
|
|
| 2811 | 2822 |
0xff, size >> TARGET_PAGE_BITS); |
| 2812 | 2823 |
|
| 2813 |
ram_list.last_offset += size; |
|
| 2814 |
|
|
| 2815 | 2824 |
if (kvm_enabled()) |
| 2816 | 2825 |
kvm_setup_guest_memory(new_block->host, size); |
| 2817 | 2826 |
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