> From: Jean-Philippe Brucker [mailto:jean-philippe.bruc...@arm.com]
> Sent: Tuesday, September 4, 2018 5:53 PM
>
> On 04/09/2018 09:41, Auger Eric wrote:
> > I think the confusion comes from the different terminology used in VTD
> > and ARM SMMU spec.
> >
> > Your PASID table ~ ARM SMMU Context
Userspace can create a memslot with memory backed by (transparent)
hugepages, but with bounds that do not align with hugepages.
In that case, we cannot map the entire region in the guest as hugepages
without exposing additional host memory to the guest and potentially
interfering with other
From: Shih-Wei Li
Signed-off-by: Shih-Wei Li
Signed-off-by: Andrew Jones
---
lib/arm/asm/gic.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/arm/asm/gic.h b/lib/arm/asm/gic.h
index 2eb4af8d6c81..3b9982b0e7b5 100644
--- a/lib/arm/asm/gic.h
+++ b/lib/arm/asm/gic.h
@@ -10,6 +10,7 @@
I dropped the version numbers, but this is v4 of Shih-Wei Li's series of
the same name, last posted in January. I took the liberty of
incorporating all the comments v3 had, plus making some other cleanup
tweaks. These tests are too nice to let them slip away, let's get them
reviewed and merged.
From: Shih-Wei Li
Here we provide the support for measuring various micro level
operations on arm64. Measurements are currently obtained using
timer counters. Further modifications in KVM will be required
to support timestamping using cycle counters, as KVM now disables
accesses to the PMU
On Tue, Sep 04, 2018 at 11:02:43AM -0400, Shih-Wei Li wrote:
> I've tested patch v2 along with the fix in the switch case. The
> performance numbers look sane on my seattle server.
>
> Tested-by: Shih-Wei Li
Thanks Shih-Wei. I'll send v3 now with the breaks and add yours
and Christoffer's
I've tested patch v2 along with the fix in the switch case. The
performance numbers look sane on my seattle server.
Tested-by: Shih-Wei Li
Thanks,
Shih-Wei
On Mon, Sep 3, 2018 at 11:38 PM, Shih-Wei Li wrote:
> On Mon, Sep 3, 2018 at 12:31 PM, Andrew Jones wrote:
>> On Mon, Sep 03, 2018 at
On Tue, Sep 04, 2018 at 03:29:26PM +0200, Christoffer Dall wrote:
> On Tue, Sep 04, 2018 at 10:13:36AM +0200, Andrew Jones wrote:
> > We need to support at least two redistributor regions in order to
> > support more than 123 vcpus (we select 8 because that should be
> > plenty). Also bump NR_CPUS
On Tue, Sep 04, 2018 at 12:07:37PM +0100, Punit Agrawal wrote:
> Christoffer Dall writes:
>
> > On Mon, Sep 03, 2018 at 06:29:30PM +0100, Punit Agrawal wrote:
> >> Christoffer Dall writes:
> >>
> >> > [Adding Andrea and Steve in CC]
> >> >
> >> > On Thu, Aug 23, 2018 at 04:33:42PM +0100, Marc
On Mon, Sep 03, 2018 at 02:20:00PM +0200, Andrew Jones wrote:
> I dropped the version numbers, but this is v4 of Shih-Wei Li's series of
> the same name, last posted in January. I took the liberty of
> incorporating all the comments v3 had, plus making some other cleanup
> tweaks. These tests are
On Tue, Sep 04, 2018 at 10:13:36AM +0200, Andrew Jones wrote:
> We need to support at least two redistributor regions in order to
> support more than 123 vcpus (we select 8 because that should be
> plenty). Also bump NR_CPUS to 512, since that's what KVM currently
> supports.
>
> Signed-off-by:
On Tue, Sep 04, 2018 at 12:39:54PM +0100, Dave Martin wrote:
> On Mon, Sep 03, 2018 at 03:45:14PM +0200, Christoffer Dall wrote:
> > From: Marc Zyngier
> >
> > If trapping FPSIMD in the context of an AArch32 guest, it is critical
> > to set FPEXC32_EL2.EN to 1 so that the trapping is taken to
On Mon, Sep 03, 2018 at 03:45:14PM +0200, Christoffer Dall wrote:
> From: Marc Zyngier
>
> If trapping FPSIMD in the context of an AArch32 guest, it is critical
> to set FPEXC32_EL2.EN to 1 so that the trapping is taken to EL2 and
> not EL1.
>
> Conversely, it is just as critical *not* to set
Christoffer Dall writes:
> On Mon, Sep 03, 2018 at 06:29:30PM +0100, Punit Agrawal wrote:
>> Christoffer Dall writes:
>>
>> > [Adding Andrea and Steve in CC]
>> >
>> > On Thu, Aug 23, 2018 at 04:33:42PM +0100, Marc Zyngier wrote:
>> >> When triggering a CoW, we unmap the RO page via an MMU
On 04/09/2018 09:41, Auger Eric wrote:
> I think the confusion comes from the different terminology used in VTD
> and ARM SMMU spec.
>
> Your PASID table ~ ARM SMMU Context Descriptor (CD) table
> Your Root Entry/Context Entry ~ ARM SMMU Stream Table Entry (STE)
In past discussions we used
On Mon, Sep 03, 2018 at 06:29:30PM +0100, Punit Agrawal wrote:
> Christoffer Dall writes:
>
> > [Adding Andrea and Steve in CC]
> >
> > On Thu, Aug 23, 2018 at 04:33:42PM +0100, Marc Zyngier wrote:
> >> When triggering a CoW, we unmap the RO page via an MMU notifier
> >>
> From: Auger Eric
> Sent: Tuesday, September 4, 2018 4:11 PM
>
> Hi Kevin,
> On 09/04/2018 09:57 AM, Tian, Kevin wrote:
> >> From: Auger Eric
> >> Sent: Friday, August 31, 2018 9:52 PM
> >>
> >> Hi Jean-Philippe,
> >>
> >> On 08/31/2018 03:11 PM, Jean-Philippe Brucker wrote:
> >>> Hi Eric,
> >>>
> From: Auger Eric
> Sent: Tuesday, September 4, 2018 4:41 PM
>
> Hi Kevin,
>
> On 09/04/2018 10:34 AM, Tian, Kevin wrote:
> >> From: Auger Eric
> >> Sent: Tuesday, September 4, 2018 4:11 PM
> >>
> >> Hi Kevin,
> >> On 09/04/2018 09:57 AM, Tian, Kevin wrote:
> From: Auger Eric
> Sent:
> From: Auger Eric
> Sent: Friday, August 31, 2018 9:52 PM
>
> Hi Jean-Philippe,
>
> On 08/31/2018 03:11 PM, Jean-Philippe Brucker wrote:
> > Hi Eric,
> >
> > On 23/08/18 16:25, Auger Eric wrote:
> >>> +int iommu_bind_guest_stage(struct iommu_domain *domain, struct
> device *dev,
> >>> +
Hi Kevin,
On 09/04/2018 10:34 AM, Tian, Kevin wrote:
>> From: Auger Eric
>> Sent: Tuesday, September 4, 2018 4:11 PM
>>
>> Hi Kevin,
>> On 09/04/2018 09:57 AM, Tian, Kevin wrote:
From: Auger Eric
Sent: Friday, August 31, 2018 9:52 PM
Hi Jean-Philippe,
On 08/31/2018
We need to support at least two redistributor regions in order to
support more than 123 vcpus (we select 8 because that should be
plenty). Also bump NR_CPUS to 512, since that's what KVM currently
supports.
Signed-off-by: Andrew Jones
---
v2:
- Peter asked if it would be neater to be more
Hi Kevin,
On 09/04/2018 09:57 AM, Tian, Kevin wrote:
>> From: Auger Eric
>> Sent: Friday, August 31, 2018 9:52 PM
>>
>> Hi Jean-Philippe,
>>
>> On 08/31/2018 03:11 PM, Jean-Philippe Brucker wrote:
>>> Hi Eric,
>>>
>>> On 23/08/18 16:25, Auger Eric wrote:
> +int iommu_bind_guest_stage(struct
On Tue, Sep 04, 2018 at 01:49:11AM +0100, Peter Maydell wrote:
> On 3 September 2018 at 17:45, Andrew Jones wrote:
> > We need to support two redistributor regions in order to support
> > more than 123 vcpus. Also bump NR_CPUS to 512, since that's what
> > KVM currently supports.
>
> Wouldn't it
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