From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CE3D9C47082 for ; Wed, 26 May 2021 15:06:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B04FD613CA for ; Wed, 26 May 2021 15:06:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235276AbhEZPHw (ORCPT ); Wed, 26 May 2021 11:07:52 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:60076 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233472AbhEZPHu (ORCPT ); Wed, 26 May 2021 11:07:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1622041579; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PjLovZI7QWiNVj3Yel3XdwAUC8rzUPkP/bc1/f02aIQ=; b=aSfmyRpV9ZKor/R2p2aAn3/wfDcrpRlVHbPQl0yaTIVR8qlErYcCBgogneDwgZ0aC3fWKd U9Sw6GfI8cNMQ40jgahevaTkSV0m2TAjtL5AoT4HHJg+6MotOSf0XVfQ+TR/3mifVO8/GR l19OCL1LOX68qnxEIzvOZDv7H31tPyw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-42-gZN-IZcqPomryu_2wOp4Lw-1; Wed, 26 May 2021 11:06:14 -0400 X-MC-Unique: gZN-IZcqPomryu_2wOp4Lw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BEFC7107ACE3; Wed, 26 May 2021 15:06:12 +0000 (UTC) Received: from [10.36.112.15] (ovpn-112-15.ams2.redhat.com [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D716419D9D; Wed, 26 May 2021 15:06:09 +0000 (UTC) Subject: Re: [kvm-unit-tests PATCH v2 1/4] arm64: remove invalid check from its-trigger test To: =?UTF-8?Q?Alex_Benn=c3=a9e?= , kvm@vger.kernel.org Cc: shashi.mallela@linaro.org, alexandru.elisei@arm.com, qemu-arm@nongnu.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@arm.com, maz@kernel.org References: <20210525172628.2088-1-alex.bennee@linaro.org> <20210525172628.2088-2-alex.bennee@linaro.org> From: Auger Eric Message-ID: <70b9dbfb-2b0f-f77b-d779-09dc1f766c7c@redhat.com> Date: Wed, 26 May 2021 17:06:08 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210525172628.2088-2-alex.bennee@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Hi Alex, On 5/25/21 7:26 PM, Alex Bennée wrote: > While an IRQ is not "guaranteed to be visible until an appropriate > invalidation" it doesn't stop the actual implementation delivering it > earlier if it wants to. This is the case for QEMU's TCG and as tests > should only be checking architectural compliance this check is > invalid. > > Signed-off-by: Alex Bennée > Cc: Shashi Mallela > --- > arm/gic.c | 14 ++++++-------- > 1 file changed, 6 insertions(+), 8 deletions(-) > > diff --git a/arm/gic.c b/arm/gic.c > index 98135ef..bef061a 100644 > --- a/arm/gic.c > +++ b/arm/gic.c > @@ -732,21 +732,19 @@ static void test_its_trigger(void) > "dev2/eventid=20 does not trigger any LPI"); > > /* > - * re-enable the LPI but willingly do not call invall > - * so the change in config is not taken into account. > - * The LPI should not hit > + * re-enable the LPI but willingly do not call invall so the > + * change in config is not taken into account. While "A change So you may need to remove the above comment, ie. "but willingly do not call invall so the change in config is not taken into account." as the conclusion of this thread is it can be taken into account immediatly. and also concat the comment below, "/* Now call the invall and check the LPI hits */" This is an "atomic" test now? with that change Reviewed-by: Eric Auger Thanks Eric > + * to the LPI configuration is not guaranteed to be visible > + * until an appropriate invalidation operation has completed" > + * hardware that doesn't implement caches may have delivered > + * the event at any point after the enabling. > */ > gicv3_lpi_set_config(8195, LPI_PROP_DEFAULT); > stats_reset(); > cpumask_clear(&mask); > its_send_int(dev2, 20); > - wait_for_interrupts(&mask); > - report(check_acked(&mask, -1, -1), > - "dev2/eventid=20 still does not trigger any LPI"); > > /* Now call the invall and check the LPI hits */ > - stats_reset(); > - cpumask_clear(&mask); > cpumask_set_cpu(3, &mask); > its_send_invall(col3); > wait_for_interrupts(&mask); > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50C88C47089 for ; Wed, 26 May 2021 15:06:23 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id E6A0D613CA for ; Wed, 26 May 2021 15:06:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E6A0D613CA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 89A0340569; 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bh=PjLovZI7QWiNVj3Yel3XdwAUC8rzUPkP/bc1/f02aIQ=; b=biJwZjz0Ba/BSzrYdvPJneyLBa0MyM7VqVJELC3DUK7tedwgnKs5gqSLvAcknhqB5DjG7O AalJLWyi0L/MVLSYOCJ96vqB6UprrmoRT8GMvykgacRdgGdhC3OcpIdXrAT6fEphhJszJ9 Ba7X00RJV9XeFFpgfG0nVvnpR2hiw3E= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-42-gZN-IZcqPomryu_2wOp4Lw-1; Wed, 26 May 2021 11:06:14 -0400 X-MC-Unique: gZN-IZcqPomryu_2wOp4Lw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id BEFC7107ACE3; Wed, 26 May 2021 15:06:12 +0000 (UTC) Received: from [10.36.112.15] (ovpn-112-15.ams2.redhat.com [10.36.112.15]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D716419D9D; Wed, 26 May 2021 15:06:09 +0000 (UTC) Subject: Re: [kvm-unit-tests PATCH v2 1/4] arm64: remove invalid check from its-trigger test To: =?UTF-8?Q?Alex_Benn=c3=a9e?= , kvm@vger.kernel.org Cc: shashi.mallela@linaro.org, alexandru.elisei@arm.com, qemu-arm@nongnu.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, christoffer.dall@arm.com, maz@kernel.org References: <20210525172628.2088-1-alex.bennee@linaro.org> <20210525172628.2088-2-alex.bennee@linaro.org> From: Auger Eric Message-ID: <70b9dbfb-2b0f-f77b-d779-09dc1f766c7c@redhat.com> Date: Wed, 26 May 2021 17:06:08 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.0 MIME-Version: 1.0 In-Reply-To: <20210525172628.2088-2-alex.bennee@linaro.org> Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210526_080618_274123_88479687 X-CRM114-Status: GOOD ( 26.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgQWxleCwKCk9uIDUvMjUvMjEgNzoyNiBQTSwgQWxleCBCZW5uw6llIHdyb3RlOgo+IFdoaWxl IGFuIElSUSBpcyBub3QgImd1YXJhbnRlZWQgdG8gYmUgdmlzaWJsZSB1bnRpbCBhbiBhcHByb3By aWF0ZQo+IGludmFsaWRhdGlvbiIgaXQgZG9lc24ndCBzdG9wIHRoZSBhY3R1YWwgaW1wbGVtZW50 YXRpb24gZGVsaXZlcmluZyBpdAo+IGVhcmxpZXIgaWYgaXQgd2FudHMgdG8uIFRoaXMgaXMgdGhl IGNhc2UgZm9yIFFFTVUncyBUQ0cgYW5kIGFzIHRlc3RzCj4gc2hvdWxkIG9ubHkgYmUgY2hlY2tp bmcgYXJjaGl0ZWN0dXJhbCBjb21wbGlhbmNlIHRoaXMgY2hlY2sgaXMKPiBpbnZhbGlkLgo+IAo+ IFNpZ25lZC1vZmYtYnk6IEFsZXggQmVubsOpZSA8YWxleC5iZW5uZWVAbGluYXJvLm9yZz4KPiBD YzogU2hhc2hpIE1hbGxlbGEgPHNoYXNoaS5tYWxsZWxhQGxpbmFyby5vcmc+Cj4gLS0tCj4gIGFy bS9naWMuYyB8IDE0ICsrKysrKy0tLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlv bnMoKyksIDggZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2FybS9naWMuYyBiL2FybS9n aWMuYwo+IGluZGV4IDk4MTM1ZWYuLmJlZjA2MWEgMTAwNjQ0Cj4gLS0tIGEvYXJtL2dpYy5jCj4g KysrIGIvYXJtL2dpYy5jCj4gQEAgLTczMiwyMSArNzMyLDE5IEBAIHN0YXRpYyB2b2lkIHRlc3Rf aXRzX3RyaWdnZXIodm9pZCkKPiAgCQkJImRldjIvZXZlbnRpZD0yMCBkb2VzIG5vdCB0cmlnZ2Vy IGFueSBMUEkiKTsKPiAgCj4gIAkvKgo+IC0JICogcmUtZW5hYmxlIHRoZSBMUEkgYnV0IHdpbGxp bmdseSBkbyBub3QgY2FsbCBpbnZhbGwKPiAtCSAqIHNvIHRoZSBjaGFuZ2UgaW4gY29uZmlnIGlz IG5vdCB0YWtlbiBpbnRvIGFjY291bnQuCj4gLQkgKiBUaGUgTFBJIHNob3VsZCBub3QgaGl0Cj4g KwkgKiByZS1lbmFibGUgdGhlIExQSSBidXQgd2lsbGluZ2x5IGRvIG5vdCBjYWxsIGludmFsbCBz byB0aGUKPiArCSAqIGNoYW5nZSBpbiBjb25maWcgaXMgbm90IHRha2VuIGludG8gYWNjb3VudC4g V2hpbGUgIkEgY2hhbmdlClNvIHlvdSBtYXkgbmVlZCB0byByZW1vdmUgdGhlIGFib3ZlIGNvbW1l bnQsIGllLiAiYnV0IHdpbGxpbmdseSBkbyBub3QKY2FsbCBpbnZhbGwgc28gdGhlIGNoYW5nZSBp biBjb25maWcgaXMgbm90IHRha2VuIGludG8gYWNjb3VudC4iIGFzIHRoZQpjb25jbHVzaW9uIG9m IHRoaXMgdGhyZWFkIGlzIGl0IGNhbiBiZSB0YWtlbiBpbnRvIGFjY291bnQgaW1tZWRpYXRseS4K CmFuZCBhbHNvIGNvbmNhdCB0aGUgY29tbWVudCBiZWxvdywgIi8qIE5vdyBjYWxsIHRoZSBpbnZh bGwgYW5kIGNoZWNrIHRoZQpMUEkgaGl0cyAqLyIKVGhpcyBpcyBhbiAiYXRvbWljIiB0ZXN0IG5v dz8KCndpdGggdGhhdCBjaGFuZ2UKUmV2aWV3ZWQtYnk6IEVyaWMgQXVnZXIgPGVyaWMuYXVnZXJA cmVkaGF0LmNvbT4KCgpUaGFua3MKCkVyaWMKPiArCSAqIHRvIHRoZSBMUEkgY29uZmlndXJhdGlv biBpcyBub3QgZ3VhcmFudGVlZCB0byBiZSB2aXNpYmxlCj4gKwkgKiB1bnRpbCBhbiBhcHByb3By aWF0ZSBpbnZhbGlkYXRpb24gb3BlcmF0aW9uIGhhcyBjb21wbGV0ZWQiCj4gKwkgKiBoYXJkd2Fy ZSB0aGF0IGRvZXNuJ3QgaW1wbGVtZW50IGNhY2hlcyBtYXkgaGF2ZSBkZWxpdmVyZWQKPiArCSAq IHRoZSBldmVudCBhdCBhbnkgcG9pbnQgYWZ0ZXIgdGhlIGVuYWJsaW5nLgo+ICAJICovCj4gIAln aWN2M19scGlfc2V0X2NvbmZpZyg4MTk1LCBMUElfUFJPUF9ERUZBVUxUKTsKPiAgCXN0YXRzX3Jl c2V0KCk7Cj4gIAljcHVtYXNrX2NsZWFyKCZtYXNrKTsKPiAgCWl0c19zZW5kX2ludChkZXYyLCAy MCk7Cj4gLQl3YWl0X2Zvcl9pbnRlcnJ1cHRzKCZtYXNrKTsKPiAtCXJlcG9ydChjaGVja19hY2tl ZCgmbWFzaywgLTEsIC0xKSwKPiAtCQkJImRldjIvZXZlbnRpZD0yMCBzdGlsbCBkb2VzIG5vdCB0 cmlnZ2VyIGFueSBMUEkiKTsKPiAgCj4gIAkvKiBOb3cgY2FsbCB0aGUgaW52YWxsIGFuZCBjaGVj ayB0aGUgTFBJIGhpdHMgKi8KPiAtCXN0YXRzX3Jlc2V0KCk7Cj4gLQljcHVtYXNrX2NsZWFyKCZt YXNrKTsKPiAgCWNwdW1hc2tfc2V0X2NwdSgzLCAmbWFzayk7Cj4gIAlpdHNfc2VuZF9pbnZhbGwo Y29sMyk7Cj4gIAl3YWl0X2Zvcl9pbnRlcnJ1cHRzKCZtYXNrKTsKPiAKCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxp bmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3Rz LmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==