Michal Orzel f9ce66ea9d docs: fusa: Add Assumption of Use (AOU) ...

AoU are the assumptions that Xen relies on other components (eg platform
platform, domains) to fulfill its requirements. In our case, platform means
a combination of hardware, firmware and bootloader.

We have defined AoU in the intro.rst and added AoU for the generic
timer.

Also, fixed a requirement to denote that Xen shall **not** expose the
system counter frequency via the "clock-frequency" device tree property.
The reason being the device tree documentation strongly discourages the
use of this peoperty. Further if the "clock-frequency" is exposed, then
it overrides the value programmed in the CNTFRQ_EL0 register.

So, the frequency shall be exposed via the CNTFRQ_EL0 register only and
consequently there is an assumption on the platform to program the
register correctly.

Signed-off-by: Michal Orzel <michal.orzel@amd.com>
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Reviewed-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>

2024-10-01 17:32:15 -07:00

..

reqs

docs: fusa: Add Assumption of Use (AOU)

2024-10-01 17:32:15 -07:00

index.rst

docs: Introduce Fusa Requirement and define maintainers

2024-08-09 16:58:04 -07:00