updated to support secure dma heap with Kernel
version 5.11 and higher. the userland allocation could be find here:
https://github.com/OP-TEE/optee_test/blob/3.20.0/host/xtest/sdp_basic.c#L153
This upgrade need a Linux dma-buf patch:
https://lore.kernel.org/all/20220805154139.2qkqxwklufjpsfd
to register a list of pages.
Our solution use a fixed protected reserved memory region and do not
rely on a dynamic protection managed in secure.
The scope of this implementation rely on a static memory region handled
by a specific DMA Heap type.
Best regards,
Olivier MASSE
On ven., 2022-08-12 at 16:3
Hi Sumit
On ven., 2022-08-19 at 13:54 +0530, Sumit Garg wrote:
> Caution: EXT Email
>
> Hi Olivier,
>
> On Fri, 12 Aug 2022 at 20:01, Olivier Masse
> wrote:
> >
> > Add a new ioctl called TEE_IOC_SHM_REGISTER_FD to register a
> > shared memory from a dmabuf
+Cyrille
Hi Nicolas,
On mer., 2022-08-17 at 10:29 -0400, Nicolas Dufresne wrote:
> Caution: EXT Email
>
> Hi Folks,
>
> Le mardi 16 août 2022 à 11:20 +, Olivier Masse a écrit :
> > Hi Brian,
> >
> >
> > On ven., 2022-08-12 at 17:39 +0100, Bria
02 août 2022 à 11:58 +0200, Olivier Masse a écrit :
> > add Linaro secure heap bindings: linaro,secure-heap
>
> Just a curiosity, how is this specific to Linaro OPTEE OS ? Shouldn't
> it be "de-
> linaro-ified" somehow ?
>
> regards,
> Nicolas
>
>
Hi Brian,
On ven., 2022-08-12 at 17:39 +0100, Brian Starkey wrote:
> Caution: EXT Email
>
> Hi,
>
> On Mon, Aug 08, 2022 at 02:39:53PM +, Olivier Masse wrote:
> > Hi Brian,
> >
> > On ven., 2022-08-05 at 16:41 +0100, Brian Starkey wrote:
> > >
Hi Jens,
On mar., 2022-08-16 at 10:17 +0200, Jens Wiklander wrote:
> Caution: EXT Email
>
> Hi Olivier,
>
> On Fri, Aug 12, 2022 at 4:31 PM Olivier Masse
> wrote:
> >
> > Add a new ioctl called TEE_IOC_SHM_REGISTER_FD to register a
> > shared memory from a
support dmabuf references that relates to physically
contiguous memory buffers.
New tee_shm flag to identify tee_shm objects built from a registered
dmabuf: TEE_SHM_EXT_DMA_BUF. Such tee_shm structures are flagged with
TEE_SHM_EXT_DMA_BUF.
Co-Developed-by: Etienne Carriere
Signed-off-by: Olivier
Add a new ioctl called TEE_IOC_SHM_REGISTER_FD to register a
shared memory from a dmabuf file descriptor.
This new ioctl will allow the Linux Kernel to register a buffer
to be used by the Secure Data Path OPTEE OS feature.
Please find more information here:
https://static.linaro.org/connect/san19/
Hi Sumit,
Thanks for your comments, please find my answer below.
On ven., 2022-08-12 at 19:36 +0530, Sumit Garg wrote:
> Caution: EXT Email
>
> Hi Olivier,
>
> On Thu, 11 Aug 2022 at 19:26, Olivier Masse
> wrote:
> >
> > From: Etienne Carriere
> >
>
r words does
> the
> tee driver has a concept of buffers moving around?
I'm not sure to understand what you mean by a moving buffer ?
For information the TEE need to map the buffer in secure which is done
when calling the invoke operation function.
>
> Am 11.08.22 um 15:56 schri
support dmabuf references that relates to physically
contiguous memory buffers.
New tee_shm flag to identify tee_shm objects built from a registered
dmabuf: TEE_SHM_EXT_DMA_BUF. Such tee_shm structures are flagged with
TEE_SHM_EXT_DMA_BUF.
Co-Developed-by: Etienne Carriere
Signed-off-by: Olivier
Add a new ioctl called TEE_IOC_SHM_REGISTER_FD to register a
shared memory from a dmabuf file descriptor.
Etienne Carriere (1):
tee: new ioctl to a register tee_shm from a dmabuf file descriptor
drivers/tee/tee_core.c | 38 +++
drivers/tee/tee_shm.c| 99 ++
Hi Christian,
Thanks for your comments, please find my answer below.
On mer., 2022-08-10 at 11:43 +0200, Christian König wrote:
> Caution: EXT Email
>
> Hi guys,
>
> Am 05.08.22 um 15:53 schrieb Olivier Masse:
> > add Linaro secure heap bindings: linaro,secure-heap
> &g
Hi Brian,
> > +
> > + rmem->ops = &rmem_dma_ops;
> > + pr_info("Reserved memory: DMA buf secure pool %s at
> > %pa, size %ld MiB\n",
> > + secure_data[secure_data_count].name,
> > + &rmem->base, (unsigned long)rmem->size /
> > SZ_1M);
> I don't know if this should be "linaro" or something more generic,
> and also where previous discussions got to about DMA heaps in DT.
>
> Cheers,
> -Brian
>
> On Fri, Aug 05, 2022 at 03:53:29PM +0200, Olivier Masse wrote:
> > DMABUF Reserved memo
add Linaro secure heap compatible reserved mem: linaro,secure-heap
use genalloc to allocate/free buffer from buffer pool.
buffer pool info is defined from a dts reserved memory.
Signed-off-by: Olivier Masse
---
drivers/dma-buf/heaps/Kconfig | 9 +
drivers/dma-buf/heaps/Makefile
e past about heaps in device-tree and discussions
> around how "custom" heaps should be treated (though IMO this is quite
> a generic one).
>
> On Fri, Aug 05, 2022 at 03:53:28PM +0200, Olivier Masse wrote:
> > add Linaro secure heap bindings: linaro,secure-heap
> > use gen
22-08-03 at 13:37 +0100, Brian Starkey wrote:
> Caution: EXT Email
>
> Hi,
>
> On Wed, Aug 03, 2022 at 11:07:54AM +, Olivier Masse wrote:
> > Hi Brian,
> >
> > Thanks for your comments, please find my reply below.
> >
> > On mar., 2022-08-02 at 15
Add DMABUF_HEAPS_SECURE in defconfig
Signed-off-by: Olivier Masse
---
arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 11 +++
arch/arm64/configs/defconfig | 2 ++
2 files changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
b/arch
the shared buffer. In the kernel this is done by calling
dma_buf_map_attachment()
3. get sg_table with dma_buf_map_attachment in difference device.
Signed-off-by: Olivier Masse
---
drivers/dma-buf/heaps/Kconfig | 9 +
drivers/dma-buf/heaps/Makefile | 1 +
drivers/dma-buf/h
DMABUF Reserved memory definition for OP-TEE SDP feaure.
Signed-off-by: Olivier Masse
---
.../reserved-memory/linaro,secure-heap.yaml | 56 +++
1 file changed, 56 insertions(+)
create mode 100644
Documentation/devicetree/bindings/reserved-memory/linaro,secure-heap.yaml
diff
Purpose of these patches is to add a new dma-buf heap: linaro,secure-heap
Linaro OPTEE OS Secure Data Path feature is relying on a reserved memory
defined at Linux Kernel level and OPTEE OS level.
>From Linux Kernel side, heap management is using dma-buf heaps interface.
Olivier Masse (3):
become optional for such buffer ?
> On Tue, Aug 02, 2022 at 11:58:41AM +0200, Olivier Masse wrote:
> > add Linaro secure heap bindings: linaro,secure-heap
> > use genalloc to allocate/free buffer from buffer pool.
> > buffer pool info is from dts.
> > use sg_
DMABUF Reserved memory definition for OP-TEE SDP feaure.
Signed-off-by: Olivier Masse
---
.../reserved-memory/linaro,secure-heap.yaml | 56 +++
1 file changed, 56 insertions(+)
create mode 100644
Documentation/devicetree/bindings/reserved-memory/linaro,secure-heap.yaml
diff
(2):
ANDROID: dma-buf: heaps: Add deferred-free-helper library code
ANDROID: dma-buf: heaps: Add a shrinker controlled page pool
Olivier Masse (3):
dma-buf: heaps: add Linaro secure dmabuf heap support
dt-bindings: reserved-memory: add linaro,secure-heap
plat-hikey: Add linaro,secure-heap compati
Add DMABUF_HEAPS_SECURE in defconfig
Signed-off-by: Olivier Masse
---
arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 11 +++
arch/arm64/configs/defconfig | 4
2 files changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
b/arch
From: John Stultz
This patch provides infrastructure for deferring buffer frees.
This is a feature ION provided which when used with some form
of a page pool, provides a nice performance boost in an
allocation microbenchmark. The reason it helps is it allows the
page-zeroing to be done out of th
the shared buffer. In the kernel this is done by calling
dma_buf_map_attachment()
3. get sg_table with dma_buf_map_attachment in difference device.
Signed-off-by: Olivier Masse
---
drivers/dma-buf/heaps/Kconfig | 21 +-
drivers/dma-buf/heaps/Makefile | 1 +
drivers/dma-buf/h
: Ezequiel Garcia
Cc: Simon Ser
Cc: James Jones
Cc: Andrew Morton
Cc: Dave Hansen
Cc: linux...@kvack.org
Cc: linux-me...@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: John Stultz
Signed-off-by: Olivier Masse
Bug: 168742043
---
drivers/dma-buf/heaps/Kconfig | 3
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