On 2017年03月09日 19:07, Cornelia Huck wrote:
On Thu, 9 Mar 2017 10:19:47 +0800
Jason Wang wrote:
On 2017年03月08日 18:12, Cornelia Huck wrote:
On Wed, 8 Mar 2017 17:51:22 +0800
Jason Wang wrote:
On 2017年03月08日 17:19, Cornelia Huck wrote:
On Wed, 8 Mar 2017 11:18:27 +0800
Jason Wang wrote:
t;> To: "Paolo Bonzini" , m...@redhat.com,
> >>> qemu-devel@nongnu.org
> >>> Cc: pet...@redhat.com
> >>> Sent: Wednesday, March 8, 2017 7:22:06 AM
> >>> Subject: Re: [Qemu-devel] [PATCH] virtio: destroy region cache during
> >>> rese
On Thu, 9 Mar 2017 12:12:00 +0100
Paolo Bonzini wrote:
> On 09/03/2017 12:07, Cornelia Huck wrote:
> >>> - Driver #2 uses the device without doing a reset or proper setup
> >> Without this patch, even if driver #2 do a reset, it can still use the
> >> old map if it don't set queue pfn.
> >
> >
On 09/03/2017 12:07, Cornelia Huck wrote:
>>> - Driver #2 uses the device without doing a reset or proper setup
>> Without this patch, even if driver #2 do a reset, it can still use the
>> old map if it don't set queue pfn.
>
> Yes, the cleanup-on-reset is definetly needed.
It is good to have
;>> Cc: pet...@redhat.com
>>> Sent: Wednesday, March 8, 2017 7:22:06 AM
>>> Subject: Re: [Qemu-devel] [PATCH] virtio: destroy region cache during
>>> reset
>>>
>>>
>>>
>>> On 2017年03月08日 11:21, Jason Wang wrote:
>>>> On 2017年0
On Thu, 9 Mar 2017 10:19:47 +0800
Jason Wang wrote:
> On 2017年03月08日 18:12, Cornelia Huck wrote:
> > On Wed, 8 Mar 2017 17:51:22 +0800
> > Jason Wang wrote:
> >
> >> On 2017年03月08日 17:19, Cornelia Huck wrote:
> >>> On Wed, 8 Mar 2017 11:18:27 +0800
> >>> Jason Wang wrote:
> >>>
> On 2017年0
On 2017年03月08日 18:12, Cornelia Huck wrote:
On Wed, 8 Mar 2017 17:51:22 +0800
Jason Wang wrote:
On 2017年03月08日 17:19, Cornelia Huck wrote:
On Wed, 8 Mar 2017 11:18:27 +0800
Jason Wang wrote:
On 2017年03月07日 18:16, Cornelia Huck wrote:
On Tue, 7 Mar 2017 16:47:58 +0800
Jason Wang wrote:
On Wed, 8 Mar 2017 17:53:23 +0800
Jason Wang wrote:
> On 2017年03月08日 17:30, Cornelia Huck wrote:
> > On Wed, 8 Mar 2017 14:22:06 +0800
> > Jason Wang wrote:
> >> there may be even more. So you want to fix them all?
> > Obviously not speaking for Paolo, but I think the virtio core should
> > hav
On Wed, 8 Mar 2017 17:51:22 +0800
Jason Wang wrote:
> On 2017年03月08日 17:19, Cornelia Huck wrote:
> > On Wed, 8 Mar 2017 11:18:27 +0800
> > Jason Wang wrote:
> >
> >> On 2017年03月07日 18:16, Cornelia Huck wrote:
> >>> On Tue, 7 Mar 2017 16:47:58 +0800
> >>> Jason Wang wrote:
> >>>
> We don't
On 2017年03月08日 17:30, Cornelia Huck wrote:
On Wed, 8 Mar 2017 14:22:06 +0800
Jason Wang wrote:
On 2017年03月08日 11:21, Jason Wang wrote:
On 2017年03月07日 18:55, Paolo Bonzini wrote:
On 07/03/2017 09:47, Jason Wang wrote:
We don't destroy region cache during reset which can make the maps
of pr
On 2017年03月08日 17:19, Cornelia Huck wrote:
On Wed, 8 Mar 2017 11:18:27 +0800
Jason Wang wrote:
On 2017年03月07日 18:16, Cornelia Huck wrote:
On Tue, 7 Mar 2017 16:47:58 +0800
Jason Wang wrote:
We don't destroy region cache during reset which can make the maps
of previous driver leaked to a
On 2017年03月08日 17:10, Paolo Bonzini wrote:
- Original Message -
From: "Jason Wang"
To: "Paolo Bonzini" , m...@redhat.com,
qemu-devel@nongnu.org
Cc: pet...@redhat.com
Sent: Wednesday, March 8, 2017 7:22:06 AM
Subject: Re: [Qemu-devel] [PATCH] virtio: destroy
On Wed, 8 Mar 2017 14:22:06 +0800
Jason Wang wrote:
> On 2017年03月08日 11:21, Jason Wang wrote:
> >
> > On 2017年03月07日 18:55, Paolo Bonzini wrote:
> >>
> >> On 07/03/2017 09:47, Jason Wang wrote:
> >>> We don't destroy region cache during reset which can make the maps
> >>> of previous driver leake
On Wed, 8 Mar 2017 11:18:27 +0800
Jason Wang wrote:
> On 2017年03月07日 18:16, Cornelia Huck wrote:
> > On Tue, 7 Mar 2017 16:47:58 +0800
> > Jason Wang wrote:
> >
> >> We don't destroy region cache during reset which can make the maps
> >> of previous driver leaked to a buggy or malicious driver
- Original Message -
> From: "Jason Wang"
> To: "Paolo Bonzini" , m...@redhat.com,
> qemu-devel@nongnu.org
> Cc: pet...@redhat.com
> Sent: Wednesday, March 8, 2017 7:22:06 AM
> Subject: Re: [Qemu-devel] [PATCH] virtio: destroy region cache during
On 2017年03月08日 11:21, Jason Wang wrote:
On 2017年03月07日 18:55, Paolo Bonzini wrote:
On 07/03/2017 09:47, Jason Wang wrote:
We don't destroy region cache during reset which can make the maps
of previous driver leaked to a buggy or malicious driver that don't
set vring address before starting
On 2017年03月07日 18:55, Paolo Bonzini wrote:
On 07/03/2017 09:47, Jason Wang wrote:
We don't destroy region cache during reset which can make the maps
of previous driver leaked to a buggy or malicious driver that don't
set vring address before starting to use the device.
I'm still not sure as
On 2017年03月07日 18:16, Cornelia Huck wrote:
On Tue, 7 Mar 2017 16:47:58 +0800
Jason Wang wrote:
We don't destroy region cache during reset which can make the maps
of previous driver leaked to a buggy or malicious driver that don't
set vring address before starting to use the device. Fix this
On 07/03/2017 09:47, Jason Wang wrote:
> We don't destroy region cache during reset which can make the maps
> of previous driver leaked to a buggy or malicious driver that don't
> set vring address before starting to use the device.
I'm still not sure as to how this can happen. Reset does clear
On Tue, 7 Mar 2017 16:47:58 +0800
Jason Wang wrote:
> We don't destroy region cache during reset which can make the maps
> of previous driver leaked to a buggy or malicious driver that don't
> set vring address before starting to use the device. Fix this by
> destroy the region cache during rese
We don't destroy region cache during reset which can make the maps
of previous driver leaked to a buggy or malicious driver that don't
set vring address before starting to use the device. Fix this by
destroy the region cache during reset and validate it before trying to
use them. While at it, also
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