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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 14:27:53 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:9.0) Gecko/20111222 Thunderbird/9.0 |
On 01/25/2012 02:22 PM, Orit Wasserman wrote:
> 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 ...
for some reason it is in patch 5
I will fix the patch series ..
> 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