Il 04/07/2012 14:50, Kevin Wolf ha scritto:
> Before merging the patches (or actually this patch, I think patch 1 is
> fairly independent),
Yes, it is.
> I'd like to hear more opinions on whether we need
> the cache parameter split first
Ok, let's discuss it next week on the KVM/QEMU call. Gett
Am 04.07.2012 14:21, schrieb Paolo Bonzini:
> Il 04/07/2012 12:16, Kevin Wolf ha scritto:
Yes. It doesn't override cache=unsafe though.
>> When the guest doesn't support flushes, cache=writeback is equivalent to
>> cache=unsafe, so if you want the old behaviour back you can switch to
>> cache
Il 04/07/2012 12:16, Kevin Wolf ha scritto:
>> > Yes. It doesn't override cache=unsafe though.
> When the guest doesn't support flushes, cache=writeback is equivalent to
> cache=unsafe, so if you want the old behaviour back you can switch to
> cache=unsafe without additional risks.
>
> We don't h
Am 03.07.2012 15:51, schrieb Paolo Bonzini:
> Il 03/07/2012 15:49, Kevin Wolf ha scritto:
>>> If the guest does not support flushes, we should run in writethrough mode.
The setting is temporary until the next reset, so that for example the
BIOS will run in writethrough mode while Linux wi
Il 03/07/2012 15:49, Kevin Wolf ha scritto:
>> If the guest does not support flushes, we should run in writethrough mode.
>> > The setting is temporary until the next reset, so that for example the
>> > BIOS will run in writethrough mode while Linux will run with a writeback
>> > cache.
>> >
>> >
Am 03.07.2012 15:20, schrieb Paolo Bonzini:
> If the guest does not support flushes, we should run in writethrough mode.
> The setting is temporary until the next reset, so that for example the
> BIOS will run in writethrough mode while Linux will run with a writeback
> cache.
>
> VIRTIO_BLK_F_FLU
If the guest does not support flushes, we should run in writethrough mode.
The setting is temporary until the next reset, so that for example the
BIOS will run in writethrough mode while Linux will run with a writeback
cache.
VIRTIO_BLK_F_FLUSH has been introduced in Linux 2.6.32 (in 2009) and
was