On Fri, 21 Aug 2015, David Vrabel wrote:
> On 21/08/15 17:05, Konrad Rzeszutek Wilk wrote:
> >
> > I have to concur with that. We can't mandate that ARM 64k page MUST use
> > indirect descriptors.
>
> Then it has to be fixed in the block layer to allow < PAGE_SIZE segments
> and to get the block
On Thu, Aug 20, 2015 at 06:30:17PM -0700, Julien Grall wrote:
>
>
> On 20/08/2015 10:42, David Vrabel wrote:
> >>When using 64KB page, a Linux block request (struct *request) may
> >>contain up to 64KB of data. This is because the block segment size
> >>must at least be the size of a Linux page.
On 21/08/15 17:05, Konrad Rzeszutek Wilk wrote:
>
> I have to concur with that. We can't mandate that ARM 64k page MUST use
> indirect descriptors.
Then it has to be fixed in the block layer to allow < PAGE_SIZE segments
and to get the block layer to split requests for blkfront.
David
_
On Thu, Aug 20, 2015 at 06:23:16PM +0100, Stefano Stabellini wrote:
> On Thu, 20 Aug 2015, David Vrabel wrote:
> > On 20/08/15 09:31, Roger Pau Monné wrote:
> > > El 20/08/15 a les 1.44, Stefano Stabellini ha escrit:
> > >> On Wed, 19 Aug 2015, Roger Pau Monné wrote:
> > >>> My opinion is that we h
On 20/08/2015 10:42, David Vrabel wrote:
When using 64KB page, a Linux block request (struct *request) may
contain up to 64KB of data. This is because the block segment size
must at least be the size of a Linux page.
You should ensure you configure the request queue with the limits that
are c
On 18/08/15 07:29, Julien Grall wrote:
> Hi,
>
> Firstly, this patch is not ready at all and mostly here for
> collecting comment about the way to do it. It's not clean so no need
> to complain about the coding style.
>
> The qdisk backend in QEMU is not supporting indirect grant, this is
> means
On Thu, 20 Aug 2015, David Vrabel wrote:
> On 20/08/15 09:31, Roger Pau Monné wrote:
> > El 20/08/15 a les 1.44, Stefano Stabellini ha escrit:
> >> On Wed, 19 Aug 2015, Roger Pau Monné wrote:
> >>> My opinion is that we have already merged quite a lot of this mess in
> >>> order to support guests w
On 20/08/2015 02:43, David Vrabel wrote:
On 20/08/15 09:31, Roger Pau Monné wrote:
El 20/08/15 a les 1.44, Stefano Stabellini ha escrit:
On Wed, 19 Aug 2015, Roger Pau Monné wrote:
My opinion is that we have already merged quite a lot of this mess in
order to support guests with different pa
On 20/08/15 09:31, Roger Pau Monné wrote:
> El 20/08/15 a les 1.44, Stefano Stabellini ha escrit:
>> On Wed, 19 Aug 2015, Roger Pau Monné wrote:
>>> My opinion is that we have already merged quite a lot of this mess in
>>> order to support guests with different page sizes. And in this case, the
>>>
>>> On 20.08.15 at 01:44, wrote:
> On Wed, 19 Aug 2015, Roger Pau Monné wrote:
>> My opinion is that we have already merged quite a lot of this mess in
>> order to support guests with different page sizes. And in this case, the
>> addition of code can be done to a userspace component, which is muc
El 20/08/15 a les 1.44, Stefano Stabellini ha escrit:
> On Wed, 19 Aug 2015, Roger Pau Monné wrote:
>> My opinion is that we have already merged quite a lot of this mess in
>> order to support guests with different page sizes. And in this case, the
>> addition of code can be done to a userspace com
On Wed, 19 Aug 2015, Roger Pau Monné wrote:
> My opinion is that we have already merged quite a lot of this mess in
> order to support guests with different page sizes. And in this case, the
> addition of code can be done to a userspace component, which is much
> less risky than adding it to blkfro
On 19/08/2015 08:17, Roger Pau Monné wrote:
Hello,
El 19/08/15 a les 16.54, Julien Grall ha escrit:
On 19/08/2015 01:50, Roger Pau Monné wrote:
Why can this be fixed in the Qemu side and the fix backported to 4.6.1?
And what about any other backend not supporting indirect grant?
The only
On 19/08/2015 01:58, Jan Beulich wrote:
On 18.08.15 at 20:45, wrote:
Hi Roger,
On 18/08/2015 00:09, Roger Pau Monné wrote:
Hello,
El 18/08/15 a les 8.29, Julien Grall ha escrit:
Hi,
Firstly, this patch is not ready at all and mostly here for collecting
comment about the way to do it. It's
Hello,
El 19/08/15 a les 16.54, Julien Grall ha escrit:
> On 19/08/2015 01:50, Roger Pau Monné wrote:
>> Why can this be fixed in the Qemu side and the fix backported to 4.6.1?
>
> And what about any other backend not supporting indirect grant?
The only other backend I know of is tapdisk/blktap,
On 19/08/2015 01:50, Roger Pau Monné wrote:
El 18/08/15 a les 20.45, Julien Grall ha escrit:
Hi Roger,
On 18/08/2015 00:09, Roger Pau Monné wrote:
Hello,
El 18/08/15 a les 8.29, Julien Grall ha escrit:
Hi,
Firstly, this patch is not ready at all and mostly here for
collecting comment abou
>>> On 18.08.15 at 20:45, wrote:
> Hi Roger,
>
> On 18/08/2015 00:09, Roger Pau Monné wrote:
>> Hello,
>>
>> El 18/08/15 a les 8.29, Julien Grall ha escrit:
>>> Hi,
>>>
>>> Firstly, this patch is not ready at all and mostly here for collecting
> comment about the way to do it. It's not clean so
El 18/08/15 a les 20.45, Julien Grall ha escrit:
> Hi Roger,
>
> On 18/08/2015 00:09, Roger Pau Monné wrote:
>> Hello,
>>
>> El 18/08/15 a les 8.29, Julien Grall ha escrit:
>>> Hi,
>>>
>>> Firstly, this patch is not ready at all and mostly here for
>>> collecting comment about the way to do it. It
Hi Roger,
On 18/08/2015 00:09, Roger Pau Monné wrote:
Hello,
El 18/08/15 a les 8.29, Julien Grall ha escrit:
Hi,
Firstly, this patch is not ready at all and mostly here for collecting comment
about the way to do it. It's not clean so no need to complain about the coding
style.
The qdisk ba
>>> On 18.08.15 at 09:09, wrote:
> Hello,
>
> El 18/08/15 a les 8.29, Julien Grall ha escrit:
>> Hi,
>>
>> Firstly, this patch is not ready at all and mostly here for collecting
> comment about the way to do it. It's not clean so no need to complain about
> the coding style.
>>
>> The qdisk b
Hello,
El 18/08/15 a les 8.29, Julien Grall ha escrit:
> Hi,
>
> Firstly, this patch is not ready at all and mostly here for collecting
> comment about the way to do it. It's not clean so no need to complain about
> the coding style.
>
> The qdisk backend in QEMU is not supporting indirect gra
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