One 4K-byte page at most contains 128 'ioreq_t'. In order to remove the vcpu
number constraint imposed by one IOREQ page, bump the number of IOREQ page to
4 pages. With this patch, multiple pages can be used as IOREQ page.
Basically, this patch extends 'ioreq' field in struct hvm_ioreq_server to a
>>> On 06.12.17 at 08:50, wrote:
> One 4K-byte page at most contains 128 'ioreq_t'. In order to remove the vcpu
> number constraint imposed by one IOREQ page, bump the number of IOREQ page to
> 4 pages. With this patch, multiple pages can be used as IOREQ page.
In case I didn't say so before - I'
> -Original Message-
> From: Chao Gao [mailto:chao@intel.com]
> Sent: 06 December 2017 07:50
> To: xen-de...@lists.xen.org
> Cc: Chao Gao ; Paul Durrant
> ; Tim (Xen.org) ; Stefano Stabellini
> ; Konrad Rzeszutek Wilk
> ; Jan Beulich ; George
> Dunlap ; Andrew Cooper
> ; Wei Liu ; Ian J
On Wed, Dec 06, 2017 at 03:04:11PM +, Paul Durrant wrote:
>> -Original Message-
>> From: Chao Gao [mailto:chao@intel.com]
>> Sent: 06 December 2017 07:50
>> To: xen-de...@lists.xen.org
>> Cc: Chao Gao ; Paul Durrant
>> ; Tim (Xen.org) ; Stefano Stabellini
>> ; Konrad Rzeszutek Wilk
> -Original Message-
> From: Chao Gao [mailto:chao@intel.com]
> Sent: 06 December 2017 09:02
> To: Paul Durrant
> Cc: xen-de...@lists.xen.org; Tim (Xen.org) ; Stefano
> Stabellini ; Konrad Rzeszutek Wilk
> ; Jan Beulich ; George
> Dunlap ; Andrew Cooper
> ; Wei Liu ; Ian Jackson
>
> S
p ;
> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>
> Subject: Re: [Xen-devel] [RFC Patch v4 2/8] ioreq: bump the number of
> IOREQ page to 4 pages
>
> > -Original Message-
> > From: Chao Gao [mailto:chao@intel.com]
> > Sent: 06 December 2017 09:02
tefano Stabellini ; Wei Liu
>> ; Andrew Cooper ; Tim
>> (Xen.org) ; George Dunlap ;
>> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>>
>> Subject: Re: [Xen-devel] [RFC Patch v4 2/8] ioreq: bump the number of
>> IOREQ page to 4 pages
>>
>> > -
t; >> Of Paul Durrant
> >> Sent: 06 December 2017 16:10
> >> To: 'Chao Gao'
> >> Cc: Stefano Stabellini ; Wei Liu
> >> ; Andrew Cooper ;
> Tim
> >> (Xen.org) ; George Dunlap ;
> >> xen-de...@lists.xen.or
u
>> >> ; Andrew Cooper ;
>> Tim
>> >> (Xen.org) ; George Dunlap ;
>> >> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>> >>
>> >> Subject: Re: [Xen-devel] [RFC Patch v4 2/8] ioreq: bump the number of
>> >> IOREQ page t
> -Original Message-
[snip]
>
> Hi, Paul.
>
> I merged the two qemu patches, the privcmd patch [1] and did some tests.
> I encountered a small issue and report it to you, so you can pay more
> attention to it when doing some tests. The symptom is that using the new
> interface to map gran
On Tue, Dec 12, 2017 at 09:07:46AM +, Paul Durrant wrote:
>> -Original Message-
>[snip]
>>
>> Hi, Paul.
>>
>> I merged the two qemu patches, the privcmd patch [1] and did some tests.
>> I encountered a small issue and report it to you, so you can pay more
>> attention to it when doing
> -Original Message-
> From: Chao Gao [mailto:chao@intel.com]
> Sent: 12 December 2017 23:39
> To: Paul Durrant
> Cc: Stefano Stabellini ; Wei Liu
> ; Andrew Cooper ; Tim
> (Xen.org) ; George Dunlap ;
> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>
> Subject: Re: [RFC Patch v4
p ;
> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>
> Subject: Re: [Xen-devel] [RFC Patch v4 2/8] ioreq: bump the number of
> IOREQ page to 4 pages
>
> > -Original Message-
> > From: Chao Gao [mailto:chao@intel.com]
> > Sent: 12 December 2017 23:39
>
> -Original Message-
> >
> > Hmm. That looks like it is because the ioreq server pages are not owned by
> > the correct domain. The Xen patch series underwent some changes later in
> > review and I did not re-test my QEMU patch after that so I wonder if
> > mapping IOREQ pages has simply be
On Thu, Dec 14, 2017 at 02:50:17PM +, Paul Durrant wrote:
>> -Original Message-
>> >
>> > Hmm. That looks like it is because the ioreq server pages are not owned by
>> > the correct domain. The Xen patch series underwent some changes later in
>> > review and I did not re-test my QEMU pa
> -Original Message-
> From: Chao Gao [mailto:chao@intel.com]
> Sent: 15 December 2017 00:36
> To: Paul Durrant
> Cc: Stefano Stabellini ; Wei Liu
> ; Andrew Cooper ; Tim
> (Xen.org) ; George Dunlap ;
> xen-de...@lists.xen.org; Jan Beulich ; Ian Jackson
>
> Subject: Re: [RFC Patch v4
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