[PATCH v3 0/2] This patch updates runtime check of AVX512

[ling xu]

This patch updates runtime check of AVX512 and update avx512 support for
xbzrle_encode_buffer function to accelerate xbzrle encoding speed.

The runtime check is updated in meson.build and meson_options.txt.

The updated AVX512 algorithm is provided in ram.c, xbzrle.c and
xbzrle.h.

The test code is provided in test-xbzrle.c.

Previous discussion is refered below:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg903520.html

ling xu (2):
  Update AVX512 support for xbzrle_encode_buffer function
  Test code for AVX512 support for xbzrle_encode_buffer

 meson.build              |  16 ++
 meson_options.txt        |   2 +
 migration/ram.c          |  41 ++++++
 migration/xbzrle.c       | 181 +++++++++++++++++++++++
 migration/xbzrle.h       |   4 +
 tests/unit/test-xbzrle.c | 307 ++++++++++++++++++++++++++++++++++++---
 6 files changed, 534 insertions(+), 17 deletions(-)

-- 
2.25.1