Hi,
On 07/05/18 at 01:00am, kbuild test robot wrote:
> Hi Baoquan,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on linus/master]
> [also build test ERROR on v4.18-rc3 next-20180704]
> [if your patch is applied to the wrong git tree, please drop us a note to
> help
On 07/07/2018 05:13 AM, Nicholas Piggin wrote:
> On Fri, 6 Jul 2018 21:58:29 -0700
> Randy Dunlap wrote:
>
>> On 07/06/2018 06:45 PM, Benjamin Herrenschmidt wrote:
>>> On Thu, 2018-07-05 at 14:30 -0700, Randy Dunlap wrote:
Hi,
Is there a good way (or a shortcut) to do something l
On Sat, 7 Jul 2018 22:44:45 +1000
Alexey Kardashevskiy wrote:
> On Sat, 7 Jul 2018 21:43:03 +1000
> Nicholas Piggin wrote:
>
> > On Sat, 7 Jul 2018 20:44:10 +1000
> > Alexey Kardashevskiy wrote:
> >
> > > A VM which has:
> > > - a DMA capable device passed through to it (eg. network card)
On Sat, 7 Jul 2018 21:43:03 +1000
Nicholas Piggin wrote:
> On Sat, 7 Jul 2018 20:44:10 +1000
> Alexey Kardashevskiy wrote:
>
> > A VM which has:
> > - a DMA capable device passed through to it (eg. network card);
> > - running a malicious kernel that ignores H_PUT_TCE failure;
> > - capabil
On Fri, 6 Jul 2018 21:58:29 -0700
Randy Dunlap wrote:
> On 07/06/2018 06:45 PM, Benjamin Herrenschmidt wrote:
> > On Thu, 2018-07-05 at 14:30 -0700, Randy Dunlap wrote:
> >> Hi,
> >>
> >> Is there a good way (or a shortcut) to do something like:
> >>
> >> $ make ARCH=powerpc O=PPC32 [other_opti
On Sat, 7 Jul 2018 20:44:10 +1000
Alexey Kardashevskiy wrote:
> A VM which has:
> - a DMA capable device passed through to it (eg. network card);
> - running a malicious kernel that ignores H_PUT_TCE failure;
> - capability of using IOMMU pages bigger that physical pages
> can create an IOMMU
The size is always equal to 1 page so let's use this. Later on this will
be used for other checks which use page shifts to check the granularity
of access.
This should cause no behavioral change.
Reviewed-by: David Gibson
Acked-by: Alex Williamson
Signed-off-by: Alexey Kardashevskiy
---
As Al
A VM which has:
- a DMA capable device passed through to it (eg. network card);
- running a malicious kernel that ignores H_PUT_TCE failure;
- capability of using IOMMU pages bigger that physical pages
can create an IOMMU mapping that exposes (for example) 16MB of
the host physical memory to the
This is to improve page boundaries checking and should probably
be cc:stable. I came accross this while debugging nvlink2 passthrough
but the lack of checking might be exploited by the existing userspace.
The get_user_pages() comment says it should be "phased out" but the only
alternative seems to
The constants are 64bit but not explicitly declared UL resulting
in sparse warnings. Fixed by declaring the constants UL.
Signed-off-by: Nicholas Mc Guire
---
sparse fallout from compile checking book3s_hv.c:
arch/powerpc/kvm/book3s_hv.c:141:9: warning: constant 0x164520C62609AECA is so
big it
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