From: Richard Henderson <richard.henderson@linaro.org>
To: "Brian Cain" <bcain@quicinc.com>, "Alex Bennée" <alex.bennee@linaro.org>
Cc: Sid Manning <sidneym@quicinc.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"Matheus Bernardino (QUIC)" <quic_mathbern@quicinc.com>
Subject: Re: testing without the translation cache
Date: Tue, 9 Jan 2024 21:10:04 +1100 [thread overview]
Message-ID: <dbeaf8b4-8b5f-43ca-9360-606f99da7ed9@linaro.org> (raw)
In-Reply-To: <SN6PR02MB420583215DEF63E921BBB758B86B2@SN6PR02MB4205.namprd02.prod.outlook.com>
On 1/9/24 09:34, Brian Cain wrote:
> Alex,
>
> A very long time ago QEMU supported disabling the translation cache via “-translation
> no-cache”. That option was deliberately removed. We are looking into a hexagon-specific
> failure when there’s a TB lookup miss from a cpu_loop_exit_restore(). I’d like to test
> our fix for this failure and was wondering if there’s any mechanism to disable the cache.
> There’s a “-accel tcg,tb-size=0” – but this won’t accomplish what I’m looking to do – will
> it? If not, is there another way to disable the cache?
There is no way to disable the cache, only to make it small so that it overflows often.
r~
prev parent reply other threads:[~2024-01-09 10:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-08 22:34 testing without the translation cache Brian Cain
2024-01-09 10:10 ` Richard Henderson [this message]
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