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| author | gibbs <gibbs@FreeBSD.org> | 2009-12-28 18:59:13 +0000 |
|---|---|---|
| committer | gibbs <gibbs@FreeBSD.org> | 2009-12-28 18:59:13 +0000 |
| commit | 504913dcc8db18d78e4d44060377ba5ffe9f99b1 (patch) | |
| tree | 110e11e5ea7cd647f89ee701eecc26527dc3df68 /usr.bin | |
| parent | 2443a07e4fd77fa70ce0d5a98d1675ef55f53664 (diff) | |
| download | FreeBSD-src-504913dcc8db18d78e4d44060377ba5ffe9f99b1.zip FreeBSD-src-504913dcc8db18d78e4d44060377ba5ffe9f99b1.tar.gz | |
Correct alignment and boundary constraints in blkfront's bus dma tag. The
blkif interface in Xen requires all I/O to be 512 byte aligned with each
segment bounded by a 4k page.
Note: This submission only documents the proper contraints for blkif I/O.
The alignment code in busdma does not yet handle alignment constraints
correctly in all cases.
Diffstat (limited to 'usr.bin')
0 files changed, 0 insertions, 0 deletions
