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From: Peter Maydell <peter.maydell@linaro.org>
To: Alexander Graf <agraf@csgraf.de>
Cc: "Eduardo Habkost" <ehabkost@redhat.com>,
	"Sergio Lopez" <slp@redhat.com>,
	"Peter Collingbourne" <pcc@google.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"QEMU Developers" <qemu-devel@nongnu.org>,
	"Cameron Esfahani" <dirty@apple.com>,
	"Roman Bolshakov" <r.bolshakov@yadro.com>,
	qemu-arm <qemu-arm@nongnu.org>, "Frank Yang" <lfy@google.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: Re: [PATCH v11 10/10] arm: tcg: Adhere to SMCCC 1.3 section 5.2
Date: Thu, 16 Sep 2021 13:29:04 +0100	[thread overview]
Message-ID: <CAFEAcA-QE0V4wkQeor0jZm3n13GkrHzT3z_2xwWwGnhHpYo2Pg@mail.gmail.com> (raw)
In-Reply-To: <20210915181049.27597-11-agraf@csgraf.de>

On Wed, 15 Sept 2021 at 19:10, Alexander Graf <agraf@csgraf.de> wrote:
>
> The SMCCC 1.3 spec section 5.2 says
>
>   The Unknown SMC Function Identifier is a sign-extended value of (-1)
>   that is returned in the R0, W0 or X0 registers. An implementation must
>   return this error code when it receives:
>
>     * An SMC or HVC call with an unknown Function Identifier
>     * An SMC or HVC call for a removed Function Identifier
>     * An SMC64/HVC64 call from AArch32 state
>
> To comply with these statements, let's always return -1 when we encounter
> an unknown HVC or SMC call.
>
> Signed-off-by: Alexander Graf <agraf@csgraf.de>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM


      reply	other threads:[~2021-09-16 12:33 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15 18:10 [PATCH v11 00/10] hvf: Implement Apple Silicon Support Alexander Graf
2021-09-15 18:10 ` [PATCH v11 01/10] arm: Move PMC register definitions to cpu.h Alexander Graf
2021-09-16 10:38   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 02/10] hvf: Add execute to dirty log permission bitmap Alexander Graf
2021-09-16 11:59   ` Peter Maydell
2021-09-16 14:04     ` Alexander Graf
2021-09-16 14:05       ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 03/10] hvf: Introduce hvf_arch_init() callback Alexander Graf
2021-09-16 10:45   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 04/10] hvf: Add Apple Silicon support Alexander Graf
2021-09-16 12:16   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 05/10] arm/hvf: Add a WFI handler Alexander Graf
2021-09-16  4:49   ` Philippe Mathieu-Daudé
2021-09-16 15:02     ` Alexander Graf
2021-09-16 12:18   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 06/10] hvf: arm: Implement -cpu host Alexander Graf
2021-09-16 12:24   ` Peter Maydell
2021-09-16 15:30     ` Alexander Graf
2021-09-16 15:55       ` Peter Maydell
2021-09-16 16:05         ` Ard Biesheuvel
2021-09-16 16:16           ` Peter Maydell
2021-09-22 11:41             ` Ard Biesheuvel
2021-09-22 12:44               ` Peter Maydell
2021-09-22 16:10                 ` Ard Biesheuvel
2021-09-16 17:47         ` Alexander Graf
2021-09-15 18:10 ` [PATCH v11 07/10] hvf: arm: Implement PSCI handling Alexander Graf
2021-09-16 12:27   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 08/10] arm: Add Hypervisor.framework build target Alexander Graf
2021-09-15 18:10 ` [PATCH v11 09/10] hvf: arm: Add rudimentary PMC support Alexander Graf
2021-09-16 12:32   ` Peter Maydell
2021-09-15 18:10 ` [PATCH v11 10/10] arm: tcg: Adhere to SMCCC 1.3 section 5.2 Alexander Graf
2021-09-16 12:29   ` Peter Maydell [this message]

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