From: Alistair Francis <alistair23@gmail.com>
To: Vladimir Isaev <vladimir.isaev@syntacore.com>
Cc: richard.henderson@linaro.org, palmer@dabbelt.com,
alistair.francis@wdc.com, bmeng.cn@gmail.com,
liwei1518@gmail.com, dbarboza@ventanamicro.com,
zhiwei_liu@linux.alibaba.com, qemu-riscv@nongnu.org,
qemu-devel@nongnu.org
Subject: Re: [PATCH] target/riscv: do not use translator_ldl in opcode_at
Date: Mon, 29 Sep 2025 10:42:27 +1000 [thread overview]
Message-ID: <CAKmqyKN0Ro9nLvq7MqYHf3byFBCyMHTvy=sJf0Epqh0E4pwhdg@mail.gmail.com> (raw)
In-Reply-To: <20250815140633.86920-1-vladimir.isaev@syntacore.com>
On Sat, Aug 16, 2025 at 12:08 AM Vladimir Isaev
<vladimir.isaev@syntacore.com> wrote:
>
> opcode_at is used only in semihosting checks to match opcodes with expected pattern.
>
> This is not a translator and if we got following assert if page is not in TLB:
> qemu-system-riscv64: ../accel/tcg/translator.c:363: record_save: Assertion `offset == db->record_start + db->record_len' failed.
>
> Fixes: 1f9c4462334f ("target/riscv: Use translator_ld* for everything")
> Signed-off-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
Thanks!
Applied to riscv-to-apply.next
Alistair
> ---
> target/riscv/translate.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/target/riscv/translate.c b/target/riscv/translate.c
> index b1e41cdbf1f6..980a67ea855e 100644
> --- a/target/riscv/translate.c
> +++ b/target/riscv/translate.c
> @@ -25,6 +25,7 @@
> #include "exec/helper-gen.h"
>
> #include "exec/translator.h"
> +#include "exec/cpu_ldst.h"
> #include "exec/log.h"
> #include "semihosting/semihost.h"
>
> @@ -1143,7 +1144,7 @@ static uint32_t opcode_at(DisasContextBase *dcbase, target_ulong pc)
> CPUState *cpu = ctx->cs;
> CPURISCVState *env = cpu_env(cpu);
>
> - return translator_ldl(env, &ctx->base, pc);
> + return cpu_ldl_code(env, pc);
> }
>
> #define SS_MMU_INDEX(ctx) (ctx->mem_idx | MMU_IDX_SS_WRITE)
> --
> 2.50.1
>
>
next prev parent reply other threads:[~2025-09-29 0:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-15 14:06 [PATCH] target/riscv: do not use translator_ldl in opcode_at Vladimir Isaev
2025-08-27 4:51 ` Richard Henderson
2025-09-29 0:42 ` Alistair Francis [this message]
2025-10-04 7:29 ` Michael Tokarev
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