Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Florian Fainelli
On 7/17/2020 2:45 AM, Sudeep Holla wrote: > On Wed, Jul 15, 2020 at 03:43:24PM -0700, Florian Fainelli wrote: >> >> >> On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: >>> From: Daniele Alessandrelli >>> >>> Currently, when SMC/HVC is used as transport, the base address of the >>> shared memo

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Daniele Alessandrelli
On Fri, 2020-07-17 at 11:31 +0100, Sudeep Holla wrote: > On Thu, Jul 16, 2020 at 12:57:23PM -0700, Florian Fainelli wrote: > > > > On 7/16/2020 7:13 AM, Daniele Alessandrelli wrote: > > > Hi Florian, > > > > > > Thanks for you feedback. > > > > > > On Wed, 2020-07-15 at 15:43 -0700, Florian Fain

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Daniele Alessandrelli
On Thu, 2020-07-16 at 12:57 -0700, Florian Fainelli wrote: > > On 7/16/2020 7:13 AM, Daniele Alessandrelli wrote: > > Hi Florian, > > > > Thanks for you feedback. > > > > On Wed, 2020-07-15 at 15:43 -0700, Florian Fainelli wrote: > > > On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: > > > > F

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Paul Murphy
Hi Florian On 7/16/20 20:57, Florian Fainelli wrote: Given that the kernel must somehow reserve this memory as a shared memory area for obvious reasons, and the trusted firmware must also ensure it treats this memory region with specific permissions in its translation regime, does it really m

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Sudeep Holla
On Thu, Jul 16, 2020 at 12:57:23PM -0700, Florian Fainelli wrote: > > > On 7/16/2020 7:13 AM, Daniele Alessandrelli wrote: > > Hi Florian, > > > > Thanks for you feedback. > > > > On Wed, 2020-07-15 at 15:43 -0700, Florian Fainelli wrote: > >> > >> On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote:

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Sudeep Holla
On Thu, Jul 16, 2020 at 03:13:03PM +0100, Daniele Alessandrelli wrote: > Hi Florian, > > Thanks for you feedback. > > On Wed, 2020-07-15 at 15:43 -0700, Florian Fainelli wrote: > > > > On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: > > > From: Daniele Alessandrelli > > > > > > Currently, when

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-17 Thread Sudeep Holla
On Wed, Jul 15, 2020 at 03:43:24PM -0700, Florian Fainelli wrote: > > > On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: > > From: Daniele Alessandrelli > > > > Currently, when SMC/HVC is used as transport, the base address of the > > shared memory used for communication is not passed to the SMC

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-16 Thread Florian Fainelli
On 7/16/2020 7:13 AM, Daniele Alessandrelli wrote: > Hi Florian, > > Thanks for you feedback. > > On Wed, 2020-07-15 at 15:43 -0700, Florian Fainelli wrote: >> >> On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: >>> From: Daniele Alessandrelli >>> >>> Currently, when SMC/HVC is used as tran

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-16 Thread Daniele Alessandrelli
Hi Florian, Thanks for you feedback. On Wed, 2020-07-15 at 15:43 -0700, Florian Fainelli wrote: > > On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: > > From: Daniele Alessandrelli > > > > Currently, when SMC/HVC is used as transport, the base address of > > the > > shared memory used for co

Re: [PATCH] firmware: arm_scmi: Pass shmem address to SMCCC call

2020-07-15 Thread Florian Fainelli
On 7/15/2020 9:55 AM, Daniele Alessandrelli wrote: > From: Daniele Alessandrelli > > Currently, when SMC/HVC is used as transport, the base address of the > shared memory used for communication is not passed to the SMCCC call. > This means that such an address must be hard-coded into the bootl