Hi Stefano/Andre/All,
Thanks for the feedback.
On 22/01/2022 01:04, Stefano Stabellini wrote:
On Thu, 20 Jan 2022, Ayan Kumar Halder wrote:
At the moment, Xen is only handling data abort with valid syndrome (i.e.
ISV=0). Unfortunately, this doesn't cover all the instructions a domain
could
On Mon, 24 Jan 2022 17:58:55 +
Julien Grall wrote:
Hi Julien,
> Hi Andre,
>
> On 24/01/2022 14:36, Andre Przywara wrote:
> > On Mon, 24 Jan 2022 12:07:42 +
> >> Also, if an instruction is being modified by the guest (after it has
> >> been loaded in the I cache), and if the guest
Hi Jan/All,
On 25/01/2022 08:55, Jan Beulich wrote:
On 24.01.2022 19:41, Stefano Stabellini wrote:
On Mon, 24 Jan 2022, Ayan Kumar Halder wrote:
As for the patch, I will mention this issue (as a comment in the code) where
we are loading the instruction from PC.
On 24.01.2022 19:41, Stefano Stabellini wrote:
> On Mon, 24 Jan 2022, Ayan Kumar Halder wrote:
>> As for the patch, I will mention this issue (as a comment in the code) where
>> we are loading the instruction from PC. Stefano/Julien/Bertrand/Volodymyr:-
>> Does it look fine with you ?
>
> As this
On Mon, 24 Jan 2022, Ayan Kumar Halder wrote:
> Hi Andre,
>
> Thanks forn your comments.
>
> On 24/01/2022 14:36, Andre Przywara wrote:
> > On Mon, 24 Jan 2022 12:07:42 +
> > Ayan Kumar Halder wrote:
> >
> > Hi Ayan,
> >
> > > Many thanks for your feedback. I have one clarification :-
> >
Hi,
On 24/01/2022 17:27, Ayan Kumar Halder wrote:
Thanks forn your comments.
On 24/01/2022 14:36, Andre Przywara wrote:
On Mon, 24 Jan 2022 12:07:42 +
Ayan Kumar Halder wrote:
Hi Ayan,
Many thanks for your feedback. I have one clarification :-
On 22/01/2022 01:30, Andre Przywara
Hi Andre,
On 24/01/2022 14:36, Andre Przywara wrote:
On Mon, 24 Jan 2022 12:07:42 +
Also, if an instruction is being modified by the guest (after it has
been loaded in the I cache), and if the guest does not invalidate the I
cache + ISB, then this is a malicious behavior by the guest. Is
Hi Andre,
Thanks forn your comments.
On 24/01/2022 14:36, Andre Przywara wrote:
On Mon, 24 Jan 2022 12:07:42 +
Ayan Kumar Halder wrote:
Hi Ayan,
Many thanks for your feedback. I have one clarification :-
On 22/01/2022 01:30, Andre Przywara wrote:
On Thu, 20 Jan 2022 21:55:27 +
On Mon, 24 Jan 2022 12:07:42 +
Ayan Kumar Halder wrote:
Hi Ayan,
> Many thanks for your feedback. I have one clarification :-
>
> On 22/01/2022 01:30, Andre Przywara wrote:
> > On Thu, 20 Jan 2022 21:55:27 +
> > Ayan Kumar Halder wrote:
> >
> > Hi,
> >
> >> At the moment, Xen is
Hi Andre,
Many thanks for your feedback. I have one clarification :-
On 22/01/2022 01:30, Andre Przywara wrote:
On Thu, 20 Jan 2022 21:55:27 +
Ayan Kumar Halder wrote:
Hi,
At the moment, Xen is only handling data abort with valid syndrome (i.e.
ISV=0). Unfortunately, this doesn't cover
On Thu, 20 Jan 2022 21:55:27 +
Ayan Kumar Halder wrote:
Hi,
> At the moment, Xen is only handling data abort with valid syndrome (i.e.
> ISV=0). Unfortunately, this doesn't cover all the instructions a domain
> could use to access MMIO regions.
>
> For instance, a baremetal OS can use any
On Thu, 20 Jan 2022, Ayan Kumar Halder wrote:
> At the moment, Xen is only handling data abort with valid syndrome (i.e.
> ISV=0). Unfortunately, this doesn't cover all the instructions a domain
> could use to access MMIO regions.
>
> For instance, a baremetal OS can use any of the following
At the moment, Xen is only handling data abort with valid syndrome (i.e.
ISV=0). Unfortunately, this doesn't cover all the instructions a domain
could use to access MMIO regions.
For instance, a baremetal OS can use any of the following instructions, where
x1 contains the address of the MMIO
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