From: Xiang Chen
The issue is reported by tool TscanCode, and it is possible to deference
null pointer when prev is NULL which is the initial value.
Signed-off-by: Xiang Chen
---
drivers/iommu/dma-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
From: Xingang Wang
When booting with devicetree, the pci_request_acs() is called after the
enumeration and initialization of PCI devices, thus the ACS is not
enabled. And ACS should be enabled when IOMMU is detected for the
PCI host bridge, so add check for IOMMU before probe of PCI host and
On Fri, Apr 23, 2021 at 06:32:30PM +0200, Thierry Reding wrote:
> From: Thierry Reding
>
> Reserved memory region phandle references can be accompanied by a
> specifier that provides additional information about how that specific
> reference should be treated.
>
> One use-case is to mark a
On Mon, May 10, 2021 at 05:25:25PM +0200, Christoph Hellwig wrote:
> Hi all,
>
> swiotlb_max_segment is a rather strange "API" export by swiotlb.c,
> and i915 is the only (remaining) user.
>
> swiotlb_max_segment returns 0 if swiotlb is not in use, 1 if
> SWIOTLB_FORCE is set or swiotlb-zen is
On Thu, May 20, 2021 at 03:13:55PM +0100, Robin Murphy wrote:
> By "mdev-like" I mean it's very similar in shape to the general SIOV-style
> mediated device concept - i.e. a physical device with an awareness of
> operating on multiple contexts at once, using a Substream ID/PASID for each
> one -
On 2021-05-20 00:24, Jason Gunthorpe wrote:
On Wed, May 19, 2021 at 11:12:46PM +, Tian, Kevin wrote:
From: Jason Gunthorpe
Sent: Thursday, May 20, 2021 2:07 AM
On Wed, May 19, 2021 at 04:23:21PM +0100, Robin Murphy wrote:
On 2021-05-17 16:35, Joerg Roedel wrote:
On Mon, May 17, 2021 at
On Thu, May 20, 2021 at 2:28 AM Wang Xingang wrote:
>
> From: Xingang Wang
>
> When booting with devicetree, the pci_request_acs() is called after the
> enumeration and initialization of PCI devices, thus the ACS is not
> enabled. And ACS should be enabled when IOMMU is detected for the
> PCI
On Mon 2021-05-17 08:21:12, Geert Uytterhoeven wrote:
> On Wed, Mar 31, 2021 at 11:59 AM Geert Uytterhoeven
> wrote:
> > While long fancy messages have a higher probability of being seen than
> > small messages, they may scroll of the screen fast, if visible at all,
> > and may still be missed.
On Thu, May 20, 2021 at 2:06 PM Michael S. Tsirkin wrote:
>
> On Mon, May 17, 2021 at 05:55:01PM +0800, Xie Yongji wrote:
> > This series introduces a framework, which can be used to implement
> > vDPA Devices in a userspace program. The work consist of two parts:
> > control path forwarding and
On 10/05/2021 15:17, John Garry wrote:
Hi Robin, guys,
A friendly reminder on this one...
Thanks
For streaming DMA mappings involving an IOMMU and whose IOVA len regularly
exceeds the IOVA rcache upper limit (meaning that they are not cached),
performance can be reduced.
This is much more
From: Xingang Wang
When booting with devicetree, the pci_request_acs() is called after the
enumeration and initialization of PCI devices, thus the ACS is not
enabled. And ACS should be enabled when IOMMU is detected for the
PCI host bridge, so add check for IOMMU before probe of PCI host and
Fixes checkpatch warnings in arm-smmu-v3.c:
WARNING: Missing a blank line after declarations
Signed-off-by: Bixuan Cui
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
Clean up some code style issues.
Bixuan Cui (3):
iommu/arm-smmu-v3: fix missing a blank line after declarations
iommu/arm-smmu-v3: Change *array into *const array
iommu/arm-smmu-v3: Prefer unsigned int to bare use of unsigned
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 9 +++--
1
Fix checkpatch warning in arm-smmu-v3.c:
Prefer 'unsigned int' to bare use of 'unsigned'
Signed-off-by: Bixuan Cui
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
Fix checkpatch warning in arm-smmu-v3.c:
static const char * array should probably be static const char * const
Signed-off-by: Bixuan Cui
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
On Thu, May 20, 2021 at 1:43 PM Michael S. Tsirkin wrote:
>
> On Thu, May 20, 2021 at 01:25:16PM +0800, Yongji Xie wrote:
> > On Wed, May 19, 2021 at 10:42 PM Dan Carpenter
> > wrote:
> > >
> > > On Wed, May 19, 2021 at 09:39:20PM +0800, Yongji Xie wrote:
> > > > On Mon, May 17, 2021 at 5:56 PM
On Thu, May 20, 2021 at 2:28 PM Al Viro wrote:
>
> On Mon, May 17, 2021 at 05:55:12PM +0800, Xie Yongji wrote:
>
> > + case VDUSE_IOTLB_GET_FD: {
> > + struct vduse_iotlb_entry entry;
> > + struct vhost_iotlb_map *map;
> > + struct vdpa_map_file *map_file;
On Thu, May 20, 2021 at 2:50 AM Florian Fainelli wrote:
>
>
>
> On 5/17/2021 11:42 PM, Claire Chang wrote:
> > Add a new function, swiotlb_init_io_tlb_mem, for the io_tlb_mem struct
> > initialization to make the code reusable.
> >
> > Note that we now also call set_memory_decrypted in
On Thu, May 20, 2021 at 2:54 AM Florian Fainelli wrote:
>
>
>
> On 5/17/2021 11:42 PM, Claire Chang wrote:
> > Add the initialization function to create restricted DMA pools from
> > matching reserved-memory nodes.
> >
> > Signed-off-by: Claire Chang
> > ---
> > include/linux/device.h | 4 +++
On Thu, May 20, 2021 at 2:18 PM Al Viro wrote:
>
> On Mon, May 17, 2021 at 05:55:03PM +0800, Xie Yongji wrote:
> > Export receive_fd() so that some modules can use
> > it to pass file descriptor between processes without
> > missing any security stuffs.
>
> Which tree is that against? Because in
On Mon, May 17, 2021 at 05:55:12PM +0800, Xie Yongji wrote:
> + case VDUSE_IOTLB_GET_FD: {
> + struct vduse_iotlb_entry entry;
> + struct vhost_iotlb_map *map;
> + struct vdpa_map_file *map_file;
> + struct vduse_iova_domain *domain =
On Mon, May 17, 2021 at 05:55:03PM +0800, Xie Yongji wrote:
> Export receive_fd() so that some modules can use
> it to pass file descriptor between processes without
> missing any security stuffs.
Which tree is that against? Because in mainline this won't even build, let
alone work.
> ---
On Mon, May 17, 2021 at 05:55:01PM +0800, Xie Yongji wrote:
> This series introduces a framework, which can be used to implement
> vDPA Devices in a userspace program. The work consist of two parts:
> control path forwarding and data path offloading.
>
> In the control path, the VDUSE driver will
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