[Qemu-devel] Re: [PATCH 4/6] qemu-kvm: Introduce cpu_physical_memory_get_dirty_range().

[Avi Kivity]

On 03/16/2010 12:53 PM, Yoshiaki Tamura wrote:
> Introduces cpu_physical_memory_get_dirty_range().
> It checks the first row and puts dirty addr in the array.
> If the first row is empty, it skips to the first non-dirty row
> or the end addr, and put the length in the first entry of the array.
>
>
>
> +/* It checks the first row and puts dirty addrs in the array.
> +   If the first row is empty, it skips to the first non-dirty row
> +   or the end addr, and put the length in the first entry of the array. */
> +int cpu_physical_memory_get_dirty_range(ram_addr_t start, ram_addr_t end,
> +                                        ram_addr_t *dirty_rams, int length,
> +                                        int dirty_flag)
> +{
> +    unsigned long phys_ram_dirty, page_number, *p;
> +    ram_addr_t addr;
> +    int s_idx = (start>>  TARGET_PAGE_BITS) / HOST_LONG_BITS;
> +    int e_idx = (end>>  TARGET_PAGE_BITS) / HOST_LONG_BITS;
> +    int i, j, offset;
> +
> +    switch (dirty_flag) {
> +    case VGA_DIRTY_FLAG:
> +        p = phys_ram_vga_dirty;
> +        break;
> +    case CODE_DIRTY_FLAG:
> +        p = phys_ram_code_dirty;
> +        break;
> +    case MIGRATION_DIRTY_FLAG:
> +        p = phys_ram_migration_dirty;
> +        break;
> +    default:
> +        abort();
> +    }
>    

This bit would be improved by switching to an array of bitmaps.


--
error compiling committee.c: too many arguments to function