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Re: [Qemu-devel] [PATCH v6 02/11] Add uleb encoding/decoding functions
From: |
Orit Wasserman |
Subject: |
Re: [Qemu-devel] [PATCH v6 02/11] Add uleb encoding/decoding functions |
Date: |
Wed, 25 Jan 2012 14:22:23 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 |
On 01/25/2012 01:48 PM, Avi Kivity wrote:
> On 01/25/2012 01:26 PM, Orit Wasserman wrote:
>> Implement Unsigned Little Endian Base 128.
>>
>>
>> +/* ULEB128 */
>> +int uleb128_encode_small(uint8_t *out, uint32_t n);
>> +int uleb128_decode_small(const uint8 *in, uint32_t *n);
>> +
>> #endif
>> diff --git a/savevm.c b/savevm.c
>> index 80be1ff..304db31 100644
>> --- a/savevm.c
>> +++ b/savevm.c
>> @@ -2297,3 +2297,29 @@ void vmstate_register_ram_global(MemoryRegion *mr)
>> {
>> vmstate_register_ram(mr, NULL);
>> }
>> +
>> +/* ULEB128 */
>> +int uleb128_encode_small(uint8_t *out, uint32_t n)
>> +{
>
> assert(n <= 0x3fff);
>
>> + if (n < 0x80) {
>> + *out++ = n;
>> + return 1;
>> + } else {
>> + *out++ = (n & 0x7f) | 0x80;
>> + *out++ = n >> 7;
>
> return 2?
oops , where did it go ...
I will fix it asp.
>
>> + }
>> + return 0;
>> +}
>> +
>> +int uleb128_decode_small(const uint8 *in, uint32_t *n)
>> +{
>> + if (!(*in & 0x80)) {
>> + *n = *in++;
>> + return 1;
>> + } else {
>> + *n = *in++ & 0x7f;
>
> assert(!(*in & 0x80));
>
>> + *n |= *in++ << 7;
>> + return 0;
>
> return 2?
>
>> + }
>> +}
>> +
>
>
- [Qemu-devel] [PATCH v6 00/11] XBRLE delta for live migration of large memory app, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 03/11] Add save_block_hdr function, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 04/11] Add host_from_stream_offset_versioned function, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 05/11] Add XBZRLE to ram_save_block and ram_save_live, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 06/11] Add MigrationParams structure, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 07/11] Add XBZRLE parameters to MigrationState, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 08/11] Add migration capabilties, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 09/11] Add set_cachesize command, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 10/11] Add XBZRLE option to migrate command, Orit Wasserman, 2012/01/25
- [Qemu-devel] [PATCH v6 11/11] Add XBZRLE statstics information, Orit Wasserman, 2012/01/25