From patchwork Tue Oct 4 09:31:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 12998062 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1D0CC433F5 for ; Tue, 4 Oct 2022 09:39:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230055AbiJDJjJ (ORCPT ); Tue, 4 Oct 2022 05:39:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231414AbiJDJir (ORCPT ); Tue, 4 Oct 2022 05:38:47 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC2F615A1E for ; Tue, 4 Oct 2022 02:35:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664876101; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=nTkCQ2u/hk2Qw23dtQU+Mt7xL3eUScwz3JvpzjfBuoU=; b=INZKf4A4O5Hme/breTnvA2GEWDUUqiYy7sybzs9Joib6xFRR/xBNi4lRHdufuK+881ACbD D/8oqgd8BhP81OVTiOFpC9u+GfbuAx0Y9+MkK4QaiXMaNHsJ8ck3m+LpAM+6KUoNMLBuuD f0zrQEQ/c7in7rLRgNtjxTcQdnfD97Y= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-237-k9AG00p4OEqwo6WqU1VaVg-1; Tue, 04 Oct 2022 05:31:36 -0400 X-MC-Unique: k9AG00p4OEqwo6WqU1VaVg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4C984862FE2; Tue, 4 Oct 2022 09:31:36 +0000 (UTC) Received: from thuth.com (unknown [10.39.193.115]) by smtp.corp.redhat.com (Postfix) with ESMTP id BA9F52166B26; Tue, 4 Oct 2022 09:31:34 +0000 (UTC) From: Thomas Huth To: Paolo Bonzini , Sean Christopherson , kvm@vger.kernel.org Cc: Shuah Khan , linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 0/3] Use TAP in some more KVM selftests Date: Tue, 4 Oct 2022 11:31:28 +0200 Message-Id: <20221004093131.40392-1-thuth@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Many KVM selftests are completely silent. This has the disadvantage for the users that they do not know what's going on here. For example, some time ago, a tester asked me how to know whether a certain new sub-test has been added to one of the s390x test binaries or not (which he didn't compile on his own), which is hard to judge when there is no output. So I finally went ahead and implemented TAP output in the s390x-specific tests some months ago. Now I wonder whether that could be a good strategy for the x86 and generic tests, too? As a little RFC patch series, I've converted three more KVM selftests to use TAP output. If we decide that this is the right way to go, I can work on other tests later, too. Thomas Huth (3): KVM: selftests: Use TAP interface in the kvm_binary_stats_test KVM: selftests: x86: Use TAP interface in the sync_regs test KVM: selftests: x86: Use TAP interface in the tsc_msrs_test .../selftests/kvm/kvm_binary_stats_test.c | 11 +- .../selftests/kvm/x86_64/sync_regs_test.c | 113 ++++++++++++++---- .../selftests/kvm/x86_64/tsc_msrs_test.c | 16 ++- 3 files changed, 114 insertions(+), 26 deletions(-)