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| author | Kevin Wolf <kwolf@redhat.com> | 2010-11-26 16:36:16 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-11-29 16:15:04 +0100 |
| commit | b76876e602ca09ff848d99595a506feb1fd54ff4 (patch) | |
| tree | 858d01d505b6c24042ca9f7d4637fb909cd3401f /tcg/tcg-op.h | |
| parent | c29947bbb0978d312074ec73be968bfab1b6c977 (diff) | |
| download | qemu-b76876e602ca09ff848d99595a506feb1fd54ff4.zip qemu-b76876e602ca09ff848d99595a506feb1fd54ff4.tar.gz qemu-b76876e602ca09ff848d99595a506feb1fd54ff4.tar.bz2 | |
ide: Reset current_addr after stopping DMA
Whenever SSBM is reset in the command register all state information is lost.
Restarting DMA means that current_addr must be reset to the base address of the
PRD table. The OS is not required to change the base address register before
starting a DMA operation, it can reuse the value it wrote for an earlier
request.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Diffstat (limited to 'tcg/tcg-op.h')
0 files changed, 0 insertions, 0 deletions