diff options
| author | Christoph Hellwig <hch@lst.de> | 2011-05-19 10:58:19 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-06-15 14:36:16 +0200 |
| commit | d353fb72f59cd0e1f67baf773e74719cda761a89 (patch) | |
| tree | 994311cabf1fd896af097c7165fa4176b991c09c /hw/ide/qdev.c | |
| parent | 4e1e00515e2522bbae98a0653ea2692ec20851ac (diff) | |
| download | qemu-d353fb72f59cd0e1f67baf773e74719cda761a89.zip qemu-d353fb72f59cd0e1f67baf773e74719cda761a89.tar.gz qemu-d353fb72f59cd0e1f67baf773e74719cda761a89.tar.bz2 | |
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 <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/ide/qdev.c')
| -rw-r--r-- | hw/ide/qdev.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c index 3f9dc89..d9b8f24 100644 --- a/hw/ide/qdev.c +++ b/hw/ide/qdev.c @@ -125,6 +125,11 @@ static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind) const char *serial; DriveInfo *dinfo; + if (dev->conf.discard_granularity && dev->conf.discard_granularity != 512) { + error_report("discard_granularity must be 512 for ide"); + return -1; + } + serial = dev->serial; if (!serial) { /* try to fall back to value set with legacy -drive serial=... */ |