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Date: Mon, 23 Mar 2020 16:18:16 +1000
From: Nicholas Piggin <npiggin@gmail.com>
Subject: Re: [PATCH v4 00/16] Initial Prefixed Instruction support
To: Jordan Niethe <jniethe5@gmail.com>, linuxppc-dev@lists.ozlabs.org
References: <20200320051809.24332-1-jniethe5@gmail.com>
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Jordan Niethe's on March 20, 2020 3:17 pm:
> A future revision of the ISA will introduce prefixed instructions. A
> prefixed instruction is composed of a 4-byte prefix followed by a
> 4-byte suffix.
>=20
> All prefixes have the major opcode 1. A prefix will never be a valid
> word instruction. A suffix may be an existing word instruction or a
> new instruction.
>=20
> This series enables prefixed instructions and extends the instruction
> emulation to support them. Then the places where prefixed instructions
> might need to be emulated are updated.
>=20
> The series is based on top of:
> https://patchwork.ozlabs.org/patch/1232619/ as this will effect
> kprobes.
>=20
> v4 is based on feedback from Nick Piggins, Christophe Leroy and Daniel Ax=
tens.
> The major changes:
>     - Move xmon breakpoints from data section to text section
>     - Introduce a data type for instructions on powerpc

Thanks for doing this, looks like a lot of work, I hope it works out :)

Thanks,
Nick
=