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From: Jingyi Wang <wangjingyi11@huawei.com>
To: Marc Zyngier <maz@kernel.org>
Cc: kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Subject: Re: [kvm-unit-tests PATCH v2 3/8] arm64: microbench: gic: Add gicv4.1 support for ipi latency test.
Date: Thu, 2 Jul 2020 17:02:18 +0800	[thread overview]
Message-ID: <a570c59c-965f-8832-b0c3-4cfc342f18fe@huawei.com> (raw)
In-Reply-To: <fe9699e3ee2131fe800911aea1425af4@kernel.org>

Hi Marc,

On 7/2/2020 4:22 PM, Marc Zyngier wrote:
> On 2020-07-02 04:01, Jingyi Wang wrote:
>> If gicv4.1(sgi hardware injection) supported, we test ipi injection
>> via hw/sw way separately.
> 
> nit: active-less SGIs are not strictly a feature of GICv4.1 (you could
> imagine a GIC emulation offering the same thing). Furthermore, GICv4.1
> isn't as such visible to the guest itself (it only sees a GICv3).
> 
> Thanks,
> 
>          M.

Yes, but to measure the performance difference of hw/sw SGI injection,
do you think it is acceptable to make it visible to guest and let it
switch SGI injection mode?

Thanks,
Jingyi

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  reply	other threads:[~2020-07-02  9:02 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-02  3:01 [kvm-unit-tests PATCH v2 0/8] arm/arm64: Add IPI/LPI/vtimer latency test Jingyi Wang
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 1/8] arm64: microbench: get correct ipi received num Jingyi Wang
2020-07-02 12:36   ` Auger Eric
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 2/8] arm64: microbench: Use the funcions for ipi test as the general functions for gic(ipi/lpi/timer) test Jingyi Wang
2020-07-02  5:25   ` Andrew Jones
2020-07-02  8:21     ` Jingyi Wang
2020-07-02 12:36   ` Auger Eric
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 3/8] arm64: microbench: gic: Add gicv4.1 support for ipi latency test Jingyi Wang
2020-07-02  8:22   ` Marc Zyngier
2020-07-02  9:02     ` Jingyi Wang [this message]
2020-07-02  9:17       ` Marc Zyngier
2020-07-02  9:29         ` Jingyi Wang
2020-07-02 12:36     ` Auger Eric
2020-07-02 13:03       ` Marc Zyngier
2020-07-02 12:57   ` Auger Eric
2020-07-02 13:08     ` Marc Zyngier
2020-07-02 13:42       ` Auger Eric
2020-07-03  3:39         ` Jingyi Wang
2020-07-02 21:33     ` Andrew Jones
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 4/8] arm64: its: Handle its command queue wrapping Jingyi Wang
2020-07-02 13:01   ` Auger Eric
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 5/8] arm64: microbench: its: Add LPI latency test Jingyi Wang
2020-07-02 13:13   ` Auger Eric
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 6/8] arm64: microbench: Allow each test to specify its running times Jingyi Wang
2020-07-02  5:29   ` Andrew Jones
2020-07-02  8:46     ` Jingyi Wang
2020-07-02 13:17     ` Auger Eric
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 7/8] arm64: microbench: Add time limit for each individual test Jingyi Wang
2020-07-02  5:48   ` Andrew Jones
2020-07-02  8:47     ` Jingyi Wang
2020-07-02 13:23   ` Auger Eric
2020-07-03  3:42     ` Jingyi Wang
2020-07-02  3:01 ` [kvm-unit-tests PATCH v2 8/8] arm64: microbench: Add vtimer latency test Jingyi Wang
2020-07-02  5:44   ` Andrew Jones
2020-07-02  8:56     ` Jingyi Wang
2020-07-02 13:36   ` Auger Eric
2020-07-03  7:41     ` Jingyi Wang
2020-07-03  7:45       ` Auger Eric
2020-07-06 12:23         ` Jingyi Wang

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