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Re: [Qemu-devel] [PATCH 0/4] target-arm: Implement missing EL3 (and EL2)


From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH 0/4] target-arm: Implement missing EL3 (and EL2) registers
Date: Fri, 14 Aug 2015 11:12:55 +0100

Ping?

thanks
-- PMM

On 30 July 2015 at 19:36, Peter Maydell <address@hidden> wrote:
> This series adds a handful of EL3 system registers that
> we were missing. It also includes the EL2 flavours
> where there were obvious easy parallels. I think this
> means we now have all the EL3 sysregs we care about.
> (A previous series added missing address translation
> operations; I still have to do the missing TLB ops.)
>
> None of these registers are exciting; they're all either
> reads-as-written or RAZ/WI.
>
> A note for people who care about EL2: I notice that a
> lot of AArch32 EL2 registers have the access permission
> pattern of "accessible from EL2(NS) and from EL3 if
> SCR.NS==1, but traps if accessed from EL3 if SCR.NS==0".
> We don't implement this wrinkle (we won't trap the
> erroneous EL3 access). This is true of the EL2 regs I
> add here, but then it's true of all our existing ones...
>
> Peter Maydell (4):
>   target-arm: Add missing MAIR_EL3 and TPIDR_EL3 registers
>   target-arm: Implement missing AMAIR registers
>   target-arm: Implement missing AFSR registers
>   target-arm: Implement missing ACTLR registers
>
>  target-arm/helper.c | 74 
> ++++++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 68 insertions(+), 6 deletions(-)
>



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