I agree With the current design there is no way for the supervisor software to reclaim the memory once it has shared it with OpenSBI. We can add a close() call, but it seems simpler and safer to inste

Reviewed-by: Alistair Francis <alistair.francis@...> Alistair

Why do these have 64 at the end? Alistair

Reviewed-by: Alistair Francis <alistair.francis@...> Alistair

Reviewed-by: Alistair Francis <alistair.francis@...> Alistair

Reviewed-by: Alistair Francis <alistair.francis@...> Alistair

Acked-by: Alistair Francis <alistair.francis@...> Alistair

Yep that's great for Linux systems. I haven't seen any embedded systems besides SiFive that use the CLINT though. For example SweRVolf uses a specific system controller: https://github.com/chipsallian

You have removed the original example, but not the original description. If we aren't supporting the adjancent addresses the paragraph above this should be removed. I still prefer to allow either adja

It probably makes more sense to add a timer section and put the CLNIT there instead of forcing it into the interrupt controller section, when it isn't really an interrupt controller. I meant you didn'

I agree, but if this is included inside a system controller (as mtime and mtimecmp sometimes are) I'm worried that HW vendors will then just put them next to each other to condense the address space a

I don't think this is a contrast to the PLIC, it's just a different functionality. I'm also not sure the CLINT should be in the interrupt controller section. It is the Core Local INTerruptor (CLINT),

But we don't want it required in the next one either. The idea is to allow vendors to be flexible and share IP between their current ISA offering and thir RISC-V chips. Look at the latest Espressif RI

Why are we removing recommendations? For the embedded spec we don't want to force vendors to meet certain requirements if they have a good reason not to. For example if they share IP or memory maps ac

We shouldn't be requiring a CLINT for embedded systems. That is too strenuous of a requirement. Instead I think we should leave the embedded section as is as it maps the register layout in memory. Thi

Is the CLINT also deprecated? From what I can tell in the AIA spec it doesn't include a replacement for the CLINT. What should be used for mtime/mtimecmp instead? Alistair

Ping! >

Isn't this the Linux and other Rich OS spec though? Alistair

Signed-off-by: Alistair Francis <alistair.francis@...> Reviewed-by: Sunil V L <sunilvl@...> --- contributors.adoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/c

This is the initial attempt at writing an Embedded-2022 specification. This includes some required and recommended components to ease software development and porting while not being too burdensome on