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Re: [Qemu-devel] [v9 Patch 4/6]Qemu: Add commandline -drive option 'host


From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [v9 Patch 4/6]Qemu: Add commandline -drive option 'hostcache'
Date: Tue, 22 Nov 2011 11:17:21 +0000

On Tue, Nov 22, 2011 at 9:55 AM, Kevin Wolf <address@hidden> wrote:
> Am 22.11.2011 09:10, schrieb supriya kannery:
>> Let us have the implementation for hostcache= as command line option, with
>> the condition that if both cache= and hostcache= are specified together,
>> then depending upon enable/disable value specified for hostcache,
>> corresponding
>> bit in cache flags can be set/reset. That way, there is a value add on
>> specifying
>> hostcache in cmdline as well as user will be able to control hostcache
>> value from cmdline
>> itself.
>
> The additional thing this would introduce is cache=unsafe hostcache=off.
> Probably not the most common thing to have, but why not allow it now.

QEMU's command-line is hairy enough already.  I don't think this
option is helpful until we can replace cache= completely.

This is a subjective issue though so if you want to take this option,
Kevin, then please do.

Stefan



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