Re: [Qemu-devel] [v7 Patch 4/5]Qemu: Add commandline -drive option 'hostcache'

[Supriya Kannery]

On 10/12/2011 08:00 PM, Kevin Wolf wrote:
> Am 11.10.2011 05:11, schrieb Supriya Kannery:
> > qemu command option 'hostcache' added to -drive for block devices.
> > While starting a VM from qemu commandline, this option can be used
> > for setting host cache usage for block data access. Simultaneous
> > use of 'hostcache' and 'cache' options not allowed.
> >
> > Signed-off-by: Supriya Kannery<address@hidden>
>
> I'm not sure if introducing this alone makes sense. I think I would only
> do it when we introduce more options that allow replacing all cache=...
> options by other parameters.

Can we do transition to alternatives for 'cache=' in a phased manner?
Until all other params are ready, we can allow hostcache (as well
as other params as and when they are ready) in cmdline with the
condition that 'cache=x', if specified, overrides these params.
Once we have all other params ready, 'cache=' can be replaced completely.

thanks, Supriya