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From: Keith Packard via <qemu-devel@nongnu.org>
To: Peter Maydell <peter.maydell@linaro.org>,
	Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [PATCH 4/5] target/rx: Load reset vector from memory after first run
Date: Tue, 18 Feb 2025 12:22:13 -0800	[thread overview]
Message-ID: <87ldu3ype2.fsf@keithp.com> (raw)
In-Reply-To: <CAFEAcA9uGeJoVGpHBU=830ZrNBojsVT6fER6OBkDw0vDfxXU8g@mail.gmail.com>

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> So I'm OK with this patch doing this the way it does,
> except that I have one question: what's that
> process_queued_cpu_work() call doing? We don't need
> that on the Arm equivalent...

Yup, I needed that because I was running this bit at cpu_reset_hold
time, not waiting until after cpu reset was finished. At cpu_reset_hold
time, the re-initialization of memory_dispatch hadn't been executed yet,
so attempts to resolve addresses crashed unless I synchronously flushed
the work queue where the call to tcg_commit_cpu was pending.

All fixed now that I'm setting the pc after the call to cpu_reset has
completed.

> Also, if() statements always have braces in QEMU, even
> if the body of the if is a single statement. But since
> if you don't set env->pc it is zero anyway, you don't
> need the if() at all I think and can directly set
> env->pc unconditionally.

Thanks for the formatting advice; I'll get it cleaned up.

-- 
-keith

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  reply	other threads:[~2025-02-18 20:23 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-02-15  2:16 [PATCH 0/5] Renesas RX target fixes Keith Packard via
2025-02-15  2:16 ` [PATCH 1/5] hw/rx: Allow execution without either bios or kernel Keith Packard via
2025-02-15 18:12   ` Richard Henderson
2025-02-15  2:16 ` [PATCH 2/5] target/rx: Set exception vector base to 0xffffff80 Keith Packard via
2025-02-15 18:12   ` Richard Henderson
2025-02-15  2:16 ` [PATCH 3/5] target/rx: Reset the CPU at qemu reset time Keith Packard via
2025-02-17  7:41   ` Philippe Mathieu-Daudé
2025-02-17  9:53   ` Peter Maydell
2025-02-18 20:09     ` Keith Packard via
2025-02-15  2:16 ` [PATCH 4/5] target/rx: Load reset vector from memory after first run Keith Packard via
2025-02-15 18:24   ` Richard Henderson
2025-02-17  9:49     ` Peter Maydell
2025-02-18 20:22       ` Keith Packard via [this message]
2025-02-18 20:11     ` Keith Packard via
2025-02-18 20:18       ` Keith Packard via
2025-02-15  2:16 ` [PATCH 5/5] target/rx: Remove TCG_CALL_NO_WG from helpers which write env Keith Packard via
2025-02-15  9:21   ` Keith Packard via
2025-02-15 17:09     ` Richard Henderson
2025-02-15 18:42       ` Richard Henderson
2025-02-18 21:20 ` [PATCH 0/4] Renesas RX target fixes (v2) Keith Packard via
2025-02-18 21:21   ` [PATCH 1/4] target/rx: Set exception vector base to 0xffffff80 Keith Packard via
2025-03-07 11:26     ` Peter Maydell
2025-02-18 21:21   ` [PATCH 2/4] target/rx: Remove TCG_CALL_NO_WG from helpers which write env Keith Packard via
2025-03-07 11:22     ` Peter Maydell
2025-02-18 21:21   ` [PATCH 3/4] hw/rx: Reset the CPU at qemu reset time Keith Packard via
2025-03-07 13:26     ` Peter Maydell
2025-06-01  1:13       ` Keith Packard via
2025-02-18 21:21   ` [PATCH 4/4] rx: Support loading of ELF files too Keith Packard via
2025-03-07 13:38     ` Peter Maydell
2025-06-01  0:35       ` Keith Packard via
2025-03-07 13:51   ` [PATCH 0/4] Renesas RX target fixes (v2) Peter Maydell

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