On Thu, Feb 04, 2021 at 09:30:08AM +, Marc Zyngier wrote:
> Hi Will,
>
> On 2021-02-03 21:13, Will Deacon wrote:
> > Hi Marc,
> >
> > On Mon, Feb 01, 2021 at 11:56:22AM +, Marc Zyngier wrote:
> > > There isn't much that a VHE kernel needs on top of whatever has
> > > been done for nVHE,
Hi Will,
On 2021-02-03 21:13, Will Deacon wrote:
Hi Marc,
On Mon, Feb 01, 2021 at 11:56:22AM +, Marc Zyngier wrote:
There isn't much that a VHE kernel needs on top of whatever has
been done for nVHE, so let's move the little we need to the
VHE stub (the SPE setup), and drop the
On 2021-02-04 09:34, Will Deacon wrote:
On Thu, Feb 04, 2021 at 09:30:08AM +, Marc Zyngier wrote:
[...]
I think the following patch addresses the above issue, which I'll
squash
with the original patch. Please shout if I missed anything.
Thanks,
M.
diff --git
Hi,
On 2/3/21 1:28 PM, Marc Zyngier wrote:
> On 2021-02-03 12:39, Auger Eric wrote:
>> Hi,
>>
>> On 2/3/21 12:20 PM, Marc Zyngier wrote:
>>> On 2021-02-03 11:07, Auger Eric wrote:
Hi Marc,
On 2/3/21 11:36 AM, Marc Zyngier wrote:
> Hi Eric,
>
> On 2021-01-27 17:53, Auger Eric
On 02/02/2021 17:12, Marc Zyngier wrote:
On 2021-01-15 15:28, Steven Price wrote:
Add a new VM feature 'KVM_ARM_CAP_MTE' which enables memory tagging
for a VM. This exposes the feature to the guest and automatically tags
memory pages touched by the VM as PG_mte_tagged (and clears the tags
On 02/02/2021 15:36, Marc Zyngier wrote:
On 2021-01-15 15:28, Steven Price wrote:
Define the new system registers that MTE introduces and context switch
them. The MTE feature is still hidden from the ID register as it isn't
supported in a VM yet.
Signed-off-by: Steven Price
---
On 2021-02-04 12:32, Alexandru Elisei wrote:
Hi,
On 2/3/21 1:28 PM, Marc Zyngier wrote:
On 2021-02-03 12:39, Auger Eric wrote:
Hi,
On 2/3/21 12:20 PM, Marc Zyngier wrote:
On 2021-02-03 11:07, Auger Eric wrote:
Hi Marc,
On 2/3/21 11:36 AM, Marc Zyngier wrote:
Hi Eric,
On 2021-01-27 17:53,
On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> On Tuesday 02 Feb 2021 at 18:13:08 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:10PM +, Quentin Perret wrote:
> > > + * __find_buddy(pool, page 0, order 0) => page 1
> > > + * __find_buddy(pool, page 0,
On Wednesday 03 Feb 2021 at 15:31:39 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:15PM +, Quentin Perret wrote:
> > Previous commits have introduced infrastructure at EL2 to enable the Hyp
> > code to manage its own memory, and more specifically its stage 1 page
> > tables.
On Thu, Feb 04, 2021 at 02:24:44PM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 15:59:44 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:22PM +, Quentin Perret wrote:
> > > The current stage2 page-table allocator uses a memcache to get
> > > pre-allocated pages when
On Thu, Feb 04, 2021 at 02:26:35PM +, Quentin Perret wrote:
> On Wednesday 03 Feb 2021 at 16:11:47 (+), Will Deacon wrote:
> > On Fri, Jan 08, 2021 at 12:15:24PM +, Quentin Perret wrote:
> > > When KVM runs in protected nVHE mode, make use of a stage 2 page-table
> > > to give the
On Wednesday 03 Feb 2021 at 14:37:10 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:14PM +, Quentin Perret wrote:
> > +static inline unsigned long __hyp_pgtable_max_pages(unsigned long nr_pages)
> > +{
> > + unsigned long total = 0, i;
> > +
> > + /* Provision the worst case
On 2021-02-04 14:33, Steven Price wrote:
On 02/02/2021 15:36, Marc Zyngier wrote:
On 2021-01-15 15:28, Steven Price wrote:
Define the new system registers that MTE introduces and context
switch
them. The MTE feature is still hidden from the ID register as it
isn't
supported in a VM yet.
Hi Jean and Kevin,
FYI, I have send out the SMMUv3 HTTU support for DMA dirty tracking[1] a week
ago.
Thanks,
Keqian
[1]
https://lore.kernel.org/linux-iommu/20210128151742.18840-1-zhukeqi...@huawei.com/
On 2020/5/27 17:14, Jean-Philippe Brucker wrote:
> On Wed, May 27, 2020 at 08:40:47AM
> From: Keqian Zhu
> Sent: Friday, February 5, 2021 11:31 AM
>
> Hi Jean and Kevin,
>
> FYI, I have send out the SMMUv3 HTTU support for DMA dirty tracking[1] a
> week ago.
>
> Thanks,
> Keqian
>
> [1] https://lore.kernel.org/linux-iommu/20210128151742.18840-1-
> zhukeqi...@huawei.com/
On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> Just feels a bit backwards having __find_buddy() take an order parameter,
> yet then return a page of the wrong order! __hyp_extract_page() always
> passes the p->order as the order,
Gotcha, so maybe this is just a naming problem.
On Thursday 04 Feb 2021 at 18:24:05 (+), Will Deacon wrote:
> On Thu, Feb 04, 2021 at 06:19:36PM +, Quentin Perret wrote:
> > On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > > Just feels a bit backwards having __find_buddy() take an order parameter,
> > > yet then
On Thursday 04 Feb 2021 at 17:48:49 (+), Will Deacon wrote:
> On Thu, Feb 04, 2021 at 02:52:52PM +, Quentin Perret wrote:
> > On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > > On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> > > > On Tuesday 02 Feb 2021
On Thursday 04 Feb 2021 at 18:13:18 (+), Will Deacon wrote:
> I was going from memory, but the loop in __hyp_alloc_pages() searches up to
> HYP_MAX_ORDER, whereas this is _never_ going to succeed beyond some per-pool
> order determined by the size of the pool. But I doubt it matters -- I
>
On Wednesday 03 Feb 2021 at 15:53:54 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:19PM +, Quentin Perret wrote:
> > In order to re-use some of the stage 2 setup at EL2, factor parts of
> > kvm_arm_setup_stage2() out into static inline functions.
> >
> > No functional change
On Thu, Feb 04, 2021 at 06:01:12PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 17:48:49 (+), Will Deacon wrote:
> > On Thu, Feb 04, 2021 at 02:52:52PM +, Quentin Perret wrote:
> > > On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > > > On Wed, Feb 03, 2021
On Wednesday 03 Feb 2021 at 15:58:32 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:21PM +, Quentin Perret wrote:
> > Refactor __populate_fault_info() to introduce __get_fault_info() which
> > will be used once the host is wrapped in a stage 2.
> >
> > Signed-off-by: Quentin
On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> > On Tuesday 02 Feb 2021 at 18:13:08 (+), Will Deacon wrote:
> > > On Fri, Jan 08, 2021 at 12:15:10PM +, Quentin Perret wrote:
> > > > + *
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
During dirty log tracking, user will try to retrieve dirty log from
iommu if it supports hardware dirty log. This adds a new interface
named sync_dirty_log in iommu layer and arm smmuv3 implements it,
which scans leaf TTD and treats it's
On Thu, Feb 04, 2021 at 06:19:36PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > Just feels a bit backwards having __find_buddy() take an order parameter,
> > yet then return a page of the wrong order! __hyp_extract_page() always
> > passes the
On Wednesday 03 Feb 2021 at 15:59:44 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:22PM +, Quentin Perret wrote:
> > The current stage2 page-table allocator uses a memcache to get
> > pre-allocated pages when it needs any. To allow re-using this code at
> > EL2 which uses a
On Tue, Feb 02, 2021 at 07:52:54PM +0100, Daniel Kiss wrote:
> CPUs that support SVE are architecturally required to support the
> Virtualization Host Extensions (VHE), so far the kernel supported
> SVE alongside KVM with VHE enabled. In same cases it is desired to
> run nVHE config even when VHE
On Thu, Feb 04, 2021 at 02:52:52PM +, Quentin Perret wrote:
> On Thursday 04 Feb 2021 at 14:31:08 (+), Will Deacon wrote:
> > On Wed, Feb 03, 2021 at 06:33:30PM +, Quentin Perret wrote:
> > > On Tuesday 02 Feb 2021 at 18:13:08 (+), Will Deacon wrote:
> > > > On Fri, Jan 08, 2021 at
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
Block descriptor is not a proper granule for dirty log tracking. This
adds a new interface named split_block in iommu layer and arm smmuv3
implements it, which splits block descriptor to an equivalent span of
page descriptors.
During
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
The SMMU which supports HTTU (Hardware Translation Table Update) can
update the access flag and the dirty state of TTD by hardware. It is
essential to track dirty pages of DMA.
This adds feature detection, none functional change.
On Wednesday 03 Feb 2021 at 16:11:47 (+), Will Deacon wrote:
> On Fri, Jan 08, 2021 at 12:15:24PM +, Quentin Perret wrote:
> > When KVM runs in protected nVHE mode, make use of a stage 2 page-table
> > to give the hypervisor some control over the host memory accesses. At
> > the moment all
On 2021-01-28 15:17, Keqian Zhu wrote:
From: jiangkunkun
When stop dirty log tracking, we need to recover all block descriptors
which are splited when start dirty log tracking. This adds a new
interface named merge_page in iommu layer and arm smmuv3 implements it,
which reinstall block
32 matches
Mail list logo
