Displaying 20 results from an estimated 600 matches similar to: "[PATCH 0/2] *** BUG Fix for Nouveau Memory***"
2024 Oct 08
3
[PATCH v4 0/2] drm/nouveau/dmem: Fix Vulnerability and Device Channels configuration
From: Yonatan Maman <Ymaman at Nvidia.com>
This patch series addresses two critical issues in the Nouveau driver
related to device channels, error handling, and sensitive data leaks.
- Vulnerability in migrate_to_ram: The migrate_to_ram function might
return a dirty HIGH_USER page when a copy push command (FW channel)
fails, potentially exposing sensitive data and posing a security
2024 Oct 08
2
[PATCH v3 0/2] drm/nouveau/dmem: Fix Vulnerability and Device Channels configuration
From: Yonatan Maman <Ymaman at Nvidia.com>
This patch series addresses two critical issues in the Nouveau driver
related to device channels, error handling, and sensitive data leaks.
- Vulnerability in migrate_to_ram: The migrate_to_ram function might
return a dirty HIGH_USER page when a copy push command (FW channel)
fails, potentially exposing sensitive data and posing a security
2024 Sep 23
1
[PATCH 2/2] nouveau/dmem: Fix memory leak in `migrate_to_ram` upon copy error
A copy push command might fail, causing `migrate_to_ram` to return a
dirty HIGH_USER page to the user.
This exposes a security vulnerability in the nouveau driver. To prevent
memory leaks in `migrate_to_ram` upon a copy error, allocate a zero
page for the destination page.
Signed-off-by: Yonatan Maman <Ymaman at Nvidia.com>
Signed-off-by: Gal Shalom <GalShalom at Nvidia.com>
---
2024 Oct 08
1
[PATCH v3 1/2] nouveau/dmem: Fix privileged error in copy engine channel
From: Yonatan Maman <Ymaman at Nvidia.com>
When `nouveau_dmem_copy_one` is called, the following error occurs:
[272146.675156] nouveau 0000:06:00.0: fifo: PBDMA9: 00000004 [HCE_PRIV]
ch 1 00000300 00003386
This indicates that a copy push command triggered a Host Copy Engine
Privileged error on channel 1 (Copy Engine channel). To address this
issue, modify the Copy Engine channel to allow
2024 Sep 23
1
[PATCH 1/2] nouveau/dmem: Fix privileged error in copy engine channel
When `nouveau_dmem_copy_one` is called, the following error occurs:
[272146.675156] nouveau 0000:06:00.0: fifo: PBDMA9: 00000004 [HCE_PRIV]
ch 1 00000300 00003386
This indicates that a copy push command triggered a Host Copy Engine
Privileged error on channel 1 (Copy Engine channel). To address this
issue, modify the Copy Engine channel to allow privileged push commands
Fixes: 6de125383a5cc
2024 Oct 15
5
[PATCH v1 0/4] GPU Direct RDMA (P2P DMA) for Device Private Pages
From: Yonatan Maman <Ymaman at Nvidia.com>
This patch series aims to enable Peer-to-Peer (P2P) DMA access in
GPU-centric applications that utilize RDMA and private device pages. This
enhancement is crucial for minimizing data transfer overhead by allowing
the GPU to directly expose device private page data to devices such as
NICs, eliminating the need to traverse system RAM, which is the
2024 Oct 16
2
[PATCH v1 0/4] GPU Direct RDMA (P2P DMA) for Device Private Pages
On 16/10/2024 7:23, Christoph Hellwig wrote:
> On Tue, Oct 15, 2024 at 06:23:44PM +0300, Yonatan Maman wrote:
>> From: Yonatan Maman <Ymaman at Nvidia.com>
>>
>> This patch series aims to enable Peer-to-Peer (P2P) DMA access in
>> GPU-centric applications that utilize RDMA and private device pages. This
>> enhancement is crucial for minimizing data transfer
2024 Oct 18
1
[PATCH v1 0/4] GPU Direct RDMA (P2P DMA) for Device Private Pages
? 2024/10/16 17:16, Yonatan Maman ??:
>
>
> On 16/10/2024 7:23, Christoph Hellwig wrote:
>> On Tue, Oct 15, 2024 at 06:23:44PM +0300, Yonatan Maman wrote:
>>> From: Yonatan Maman <Ymaman at Nvidia.com>
>>>
>>> This patch series aims to enable Peer-to-Peer (P2P) DMA access in
>>> GPU-centric applications that utilize RDMA and private device
2014 Mar 24
3
[PATCH 11/12] drm/nouveau: support GK20A in nouveau_accel_init()
On Mon, Mar 24, 2014 at 05:42:33PM +0900, Alexandre Courbot wrote:
> GK20A does not embed a dedicated COPY engine and thus cannot allocate
> the copy channel that nouveau_accel_init() attempts to create. It also
> lacks any display hardware, so the creation of a software channel does
> not apply neither.
Perhaps this should be two separate patches?
> diff --git
2020 Sep 14
5
[PATCH] mm: remove extra ZONE_DEVICE struct page refcount
ZONE_DEVICE struct pages have an extra reference count that complicates the
code for put_page() and several places in the kernel that need to check the
reference count to see that a page is not being used (gup, compaction,
migration, etc.). Clean up the code so the reference count doesn't need to
be treated specially for ZONE_DEVICE.
Signed-off-by: Ralph Campbell <rcampbell at
2019 Jun 17
34
dev_pagemap related cleanups v2
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of the rdma/hmm branch + the dev_pagemap
releas fix series from Dan that went into 5.2-rc5.
Git tree:
git://git.infradead.org/users/hch/misc.git
2020 Nov 06
12
[PATCH v3 0/6] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
Earlier versions were posted previously [1] and [2].
The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a
lot of other THP patches being posted. I don't think there are any
semantic conflicts but there may be some merge conflicts depending on
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
An earlier version was posted previously [1]. This version now
supports splitting a THP midway in the migration process which
led to a number of changes.
The patches apply cleanly to the current linux-mm tree. Since there
are a couple of patches in linux-mm from Dan
2019 Jun 27
1
[PATCH 12/25] memremap: add a migrate_to_ram method to struct dev_pagemap_ops
On Wed, Jun 26, 2019 at 02:27:11PM +0200, Christoph Hellwig wrote:
> This replaces the hacky ->fault callback, which is currently directly
> called from common code through a hmm specific data structure as an
> exercise in layering violations.
>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> Reviewed-by: Ralph Campbell <rcampbell at nvidia.com>
> ---
>
2020 Jun 19
22
[PATCH 00/16] mm/hmm/nouveau: THP mapping and migration
These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go
into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM
self tests. Patch 7-8 prepare nouveau for the meat of this series which
adds support and testing for compound page mapping of system memory
(patches 9-11) and compound page migration to device private memory
(patches 12-16). Since these changes are split
2020 Oct 01
8
[RFC PATCH v3 0/2] mm: remove extra ZONE_DEVICE struct page refcount
This is still an RFC because after looking at the pmem/dax code some
more, I realized that the ZONE_DEVICE struct pages are being inserted
into the process' page tables with vmf_insert_mixed() and a zero
refcount on the ZONE_DEVICE struct page. This is sort of OK because
insert_pfn() increments the reference count on the pgmap which is what
prevents memunmap_pages() from freeing the struct
2019 Jun 26
41
dev_pagemap related cleanups v3
Hi Dan, Jérôme and Jason,
below is a series that cleans up the dev_pagemap interface so that
it is more easily usable, which removes the need to wrap it in hmm
and thus allowing to kill a lot of code
Note: this series is on top of Linux 5.2-rc5 and has some minor
conflicts with the hmm tree that are easy to resolve.
Diffstat summary:
32 files changed, 361 insertions(+), 1012 deletions(-)
Git
2019 Aug 08
10
turn hmm migrate_vma upside down v2
Hi Jérôme, Ben and Jason,
below is a series against the hmm tree which starts revamping the
migrate_vma functionality. The prime idea is to export three slightly
lower level functions and thus avoid the need for migrate_vma_ops
callbacks.
Diffstat:
5 files changed, 281 insertions(+), 607 deletions(-)
A git tree is also available at:
git://git.infradead.org/users/hch/misc.git
2019 Jun 26
0
[PATCH 12/25] memremap: add a migrate_to_ram method to struct dev_pagemap_ops
This replaces the hacky ->fault callback, which is currently directly
called from common code through a hmm specific data structure as an
exercise in layering violations.
Signed-off-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Ralph Campbell <rcampbell at nvidia.com>
---
include/linux/hmm.h | 6 ------
include/linux/memremap.h | 6 ++++++
include/linux/swapops.h | 15
2019 Jul 29
24
turn the hmm migrate_vma upside down
Hi Jérôme, Ben and Jason,
below is a series against the hmm tree which starts revamping the
migrate_vma functionality. The prime idea is to export three slightly
lower level functions and thus avoid the need for migrate_vma_ops
callbacks.
Diffstat:
4 files changed, 285 insertions(+), 602 deletions(-)
A git tree is also available at:
git://git.infradead.org/users/hch/misc.git