Re: [PATCH v9 3/9] tee: implement protected DMA-heap

2025-06-02 Thread Jens Wiklander
Hi Amir, On Fri, May 30, 2025 at 4:13 AM Amirreza Zarrabi wrote: > > Hi Jens, > > On 5/21/2025 1:16 AM, Jens Wiklander wrote: > > Implement DMA heap for protected DMA-buf allocation in the TEE > > subsystem. > > > > Restricted memory refers to memory buffers behind a hardware enforced > > firewal

Re: [PATCH v9 3/9] tee: implement protected DMA-heap

2025-05-29 Thread Amirreza Zarrabi
Hi Jens, On 5/21/2025 1:16 AM, Jens Wiklander wrote: > Implement DMA heap for protected DMA-buf allocation in the TEE > subsystem. > > Restricted memory refers to memory buffers behind a hardware enforced > firewall. It is not accessible to the kernel during normal circumstances > but rather only

Re: [PATCH v9 3/9] tee: implement protected DMA-heap

2025-05-26 Thread Jens Wiklander
On Fri, May 23, 2025 at 3:03 PM Sumit Garg wrote: > > + Robin > > Jens, > > I suppose you missed to add Robin who has earlier reviewed this patch. Yes, you're right, sorry. Thanks for catching this. > > On Tue, May 20, 2025 at 05:16:46PM +0200, Jens Wiklander wrote: > > Implement DMA heap for pr

Re: [PATCH v9 3/9] tee: implement protected DMA-heap

2025-05-23 Thread Sumit Garg
+ Robin Jens, I suppose you missed to add Robin who has earlier reviewed this patch. On Tue, May 20, 2025 at 05:16:46PM +0200, Jens Wiklander wrote: > Implement DMA heap for protected DMA-buf allocation in the TEE > subsystem. > > Restricted memory refers to memory buffers behind a hardware enf

[PATCH v9 3/9] tee: implement protected DMA-heap

2025-05-20 Thread Jens Wiklander
Implement DMA heap for protected DMA-buf allocation in the TEE subsystem. Restricted memory refers to memory buffers behind a hardware enforced firewall. It is not accessible to the kernel during normal circumstances but rather only accessible to certain hardware IPs or CPUs executing in higher or