Re: [PATCH v8 09/12] arm64: disable SCS for hypervisor code

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Subject: Re: [PATCH v8 09/12] arm64: disable SCS for hypervisor code
From: Marc Zyngier <maz@xxxxxxxxxx>
Date: Wed, 19 Feb 2020 07:50:17 +0000
Cc: Will Deacon <will@xxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, james.morse@xxxxxxx, Dave Martin <Dave.Martin@xxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Laura Abbott <labbott@xxxxxxxxxx>, Nick Desaulniers <ndesaulniers@xxxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx>, Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>, clang-built-linux@xxxxxxxxxxxxxxxx, kernel-hardening@xxxxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
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In-reply-to: <20200219000817.195049-10-samitolvanen@google.com>
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On Tue, 18 Feb 2020 16:08:14 -0800
Sami Tolvanen <samitolvanen@xxxxxxxxxx> wrote:

> Disable SCS for code that runs at a different exception level by
> adding __noscs to __hyp_text.
> 
> Suggested-by: James Morse <james.morse@xxxxxxx>
> Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx>

Acked-by: Marc Zyngier <maz@xxxxxxxxxx>

	M.
-- 
Jazz is not dead. It just smells funny...

References:
- [PATCH 00/18] add support for Clang's Shadow Call Stack
  - From: Sami Tolvanen
- [PATCH v8 00/12] add support for Clang's Shadow Call Stack
  - From: Sami Tolvanen
- [PATCH v8 09/12] arm64: disable SCS for hypervisor code
  - From: Sami Tolvanen

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