From: Richard Henderson <richard.henderson@linaro.org>
To: Leandro Lupori <leandro.lupori@eldorado.org.br>,
qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: danielhb413@gmail.com, groug@kaod.org, clg@kaod.org,
pbonzini@redhat.com, alex.bennee@linaro.org,
david@gibson.dropbear.id.au
Subject: Re: [RFC PATCH 0/6] Port PPC64/PowerNV MMU tests to QEMU
Date: Sat, 26 Mar 2022 07:13:17 -0600 [thread overview]
Message-ID: <b232c4e6-61ba-0dc9-e2d0-53b4ad7cc93a@linaro.org> (raw)
In-Reply-To: <20220324190854.156898-1-leandro.lupori@eldorado.org.br>
On 3/24/22 13:08, Leandro Lupori wrote:
> To be able to finish the test and return an exit code to the
> calling process, the Processor Attention instruction is used.
> As its behavior is implementation dependent, in QEMU PowerNV
> it just calls exit with GPR[3] value, truncated to an uint8_t.
I think you're simply thinking too small here, and should consider using the attn
instruction to implement a full -semihosting interface. You might as well join arm and
riscv with CONFIG_ARM_COMPATIBLE_SEMIHOSTING.
r~
next prev parent reply other threads:[~2022-03-26 13:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-24 19:08 [RFC PATCH 0/6] Port PPC64/PowerNV MMU tests to QEMU Leandro Lupori
2022-03-24 19:08 ` [RFC PATCH 1/6] target/ppc: Add support for the Processor Attention instruction Leandro Lupori
2022-03-25 15:11 ` Fabiano Rosas
2022-03-26 3:15 ` David Gibson
2022-03-26 13:04 ` Richard Henderson
2022-03-28 15:46 ` Cédric Le Goater
2022-03-24 19:08 ` [RFC PATCH 2/6] ppc/pnv: Activate " Leandro Lupori
2022-03-24 19:08 ` [RFC PATCH 3/6] tests/tcg/ppc64: add basic softmmu test support Leandro Lupori
2022-03-24 19:08 ` [RFC PATCH 4/6] tests/tcg: add support for ppc64le softmmu tests Leandro Lupori
2022-03-24 20:34 ` Alex Bennée
2022-03-24 21:11 ` Leandro Lupori
2022-03-25 9:50 ` Alex Bennée
2022-03-31 14:27 ` Leandro Lupori
2022-03-24 19:08 ` [RFC PATCH 5/6] tests/tcg/ppc64: add MMU test sources Leandro Lupori
2022-03-24 19:08 ` [RFC PATCH 6/6] tests/tcg/ppc64: add rules to build PowerNV tests Leandro Lupori
2022-03-26 13:13 ` Richard Henderson [this message]
2022-03-28 14:54 ` [RFC PATCH 0/6] Port PPC64/PowerNV MMU tests to QEMU Fabiano Rosas
2022-03-28 14:59 ` Richard Henderson
2022-03-28 16:24 ` Cédric Le Goater
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