Re: [kvm-unit-tests PATCH v10 4/7] arm/tlbflush-code: TLB flush during code execution

From: "Alex Bennée" <alex.bennee@linaro.org>
To: Andrew Jones <andrew.jones@linux.dev>
Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
	qemu-devel@nongnu.org, Thomas Huth <thuth@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	kvmarm@lists.linux.dev, qemu-arm@nongnu.org,
	Mark Rutland <mark.rutland@arm.com>
Subject: Re: [kvm-unit-tests PATCH v10 4/7] arm/tlbflush-code: TLB flush during code execution
Date: Tue, 11 Apr 2023 09:26:56 +0100	[thread overview]
Message-ID: <87ile2rffl.fsf@linaro.org> (raw)
In-Reply-To: <20230321150220.mfrvgxg3ebju5e6k@orel>

Andrew Jones <andrew.jones@linux.dev> writes:

> On Tue, Mar 07, 2023 at 11:28:42AM +0000, Alex Bennée wrote:
>> This adds a fairly brain dead torture test for TLB flushes intended
>> for stressing the MTTCG QEMU build. It takes the usual -smp option for
>> multiple CPUs.
>> 
<snip>
>
> BTW, have you tried running these tests as standalone? Since they're
> 'nodefault' it'd be good if they work that way.

It works but I couldn't get it to skip pass the nodefault check
automaticaly:

  env run_all_tests=1 QEMU=$HOME/lsrc/qemu.git/builds/arm.all/qemu-system-aarch64 ./tests/tcg.computed 
  BUILD_HEAD=c9cf6e90
  Test marked not to be run by default, are you sure (y/N)?

>
>> +file = tlbflush-code.flat
>> +smp = $(($MAX_SMP>4?4:$MAX_SMP))
>> +groups = nodefault mttcg
>> +
>> +[tlbflush-code::page_other]
>> +file = tlbflush-code.flat
>> +smp = $(($MAX_SMP>4?4:$MAX_SMP))
>> +extra_params = -append 'page'
>> +groups = nodefault mttcg
>> +
>> +[tlbflush-code::all_self]
>> +file = tlbflush-code.flat
>> +smp = $(($MAX_SMP>4?4:$MAX_SMP))
>> +extra_params = -append 'self'
>> +groups = nodefault mttcg
>> +
>> +[tlbflush-code::page_self]
>> +file = tlbflush-code.flat
>> +smp = $(($MAX_SMP>4?4:$MAX_SMP))
>> +extra_params = -append 'page self'
>> +groups = nodefault mttcg
>> +
>> -- 
>> 2.39.2
>>
>
> Thanks,
> drew

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro