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Re: [Qemu-arm] [Qemu-devel] [PATCH] target/arm: Allow to switch from MON

From: Peter Maydell
Subject: Re: [Qemu-arm] [Qemu-devel] [PATCH] target/arm: Allow to switch from MON->HYP on AArch32
Date: Wed, 9 Jan 2019 16:35:30 +0000

On Wed, 9 Jan 2019 at 16:11, Alex Bennée <address@hidden> wrote:
> Alexander Graf <address@hidden> writes:
> > In U-boot, we switch from S-SVC -> MON -> HYP when we want to enter
> > HYP mode. This dance seems to work ok (hence it's there in the code
> > base), but breaks with current QEMU.
> What EL is MON in this case? EL3?

Mon is an AArch32 term and EL is really AArch64, but in
practice Mon is always (Secure) EL3. Note that if EL3
is AArch32 then S-SVC is *also* EL3 !

-- PMM

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