From d353fb72f59cd0e1f67baf773e74719cda761a89 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 19 May 2011 10:58:19 +0200 Subject: ide: add TRIM support Add support for TRIM sub function of the data set management command, and wire it up to the qemu discard infrastructure. Signed-off-by: Christoph Hellwig Signed-off-by: Kevin Wolf --- hw/ide/macio.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'hw/ide/macio.c') diff --git a/hw/ide/macio.c b/hw/ide/macio.c index 099b8cbfe9..7daeb31ec3 100644 --- a/hw/ide/macio.c +++ b/hw/ide/macio.c @@ -154,6 +154,10 @@ static void pmac_ide_transfer_cb(void *opaque, int ret) m->aiocb = dma_bdrv_write(s->bs, &s->sg, sector_num, pmac_ide_transfer_cb, io); break; + case IDE_DMA_TRIM: + m->aiocb = dma_bdrv_io(s->bs, &s->sg, sector_num, + ide_issue_trim, pmac_ide_transfer_cb, s, 1); + break; } if (!m->aiocb) -- cgit 1.4.1