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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 80314C433EF for ; Thu, 23 Sep 2021 22:00:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5FC9C6124B for ; Thu, 23 Sep 2021 22:00:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234889AbhIWWCT (ORCPT ); Thu, 23 Sep 2021 18:02:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234737AbhIWWCS (ORCPT ); Thu, 23 Sep 2021 18:02:18 -0400 Received: from mail-io1-xd4a.google.com (mail-io1-xd4a.google.com [IPv6:2607:f8b0:4864:20::d4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C32FDC061574 for ; Thu, 23 Sep 2021 15:00:46 -0700 (PDT) Received: by mail-io1-xd4a.google.com with SMTP id z14-20020a05660229ce00b005d616a6f35aso7033104ioq.23 for ; Thu, 23 Sep 2021 15:00:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:message-id:mime-version:subject:from:to:cc; bh=f7vskvTE1f7g6j1G/9mcc6TBVgiYtYDQe3QIkQtPdlk=; b=XEkuJx54Rb2fmI8uJkqiTHQ2tWjkNQ24qlfvw6u7Ob8ElAf3Lc5eSH8CRLzb7f0tSt ZaCNiAa9jHEvvVKK+IfYG+plg1XoENH0epLflNzjsNxur8rFNJSS/ChXanxY29UxzBJv cDa+dEgx1vFHBYhiRGlvKnvd1C32EcB77qaRUu1Lu8mpZzcOerrElqnb2vyLQlaRDHXy a3NiADAsN/uZe4Htb5/PZ2X4NxHuNQ4e6LV5NkkAeGdhv202Ao3kt3KDoh4jSfadsz9v ARFJy0qtmIpQOykpuoV0CzdnTYzeH2B5Arb7Qb1mObyLfVqeaN5gQG12Ui+BvPtiiMls H7jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=f7vskvTE1f7g6j1G/9mcc6TBVgiYtYDQe3QIkQtPdlk=; b=VmhBPTnuuCOqb8jHpP24M7B/TbcTzSZDtpKw9w3UhQiVruyMN2/K5hCn3Oh4kjaL09 dgbjuH8lR3+HuSd4ax5JG+7xR6pgu8jXzQMqfRBrE7+8XMTzJquFF9CD7SKBMKg1Np+w PoQ75btp2HcQfD+V1KPdBDw5FKn4BhLnHBGND0PFZJW0S6fYVqPPUfcgINREvOdHKI5S lEpbJ+i2+RkZQ8bb7gZdeF9KeMq23ifHV3yiQPDERo/2HkzigcobxmaafGNeSaopS3C6 5HV4iHePCOVjNp78r4mJzwtcpPFEejrggBhvmC13jYzcW811rqU/aYKuPBMBue8eMgnn 605Q== X-Gm-Message-State: AOAM5336cYqmAv3Ov78pjl1E41PFDtnccQv3gVXTdrg9cHPLZYKBk8JV aeLdTAobd0uDFnEl9HWIoBEaB3zi5BChfoYjpbcAQsyLt+K+PI237MmZnntUXxQj0TbgOWIA2Gw dNurogq2hRJuB+O54mJqOW0CNCTPT/g/9Ny7MDv5IIlW4x/U7mlpxDHkOPg== X-Google-Smtp-Source: ABdhPJw7/ZOpW6kzLm/q1fD4TCKb+A42nB2EL3IA5ogaxCUNjeLVhemJc4/cZc2z+VIUYwwPmzi81WOKliM= X-Received: from oupton.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:404]) (user=oupton job=sendgmr) by 2002:a02:6666:: with SMTP id l38mr6063627jaf.146.1632434446142; Thu, 23 Sep 2021 15:00:46 -0700 (PDT) Date: Thu, 23 Sep 2021 22:00:33 +0000 Message-Id: <20210923220033.4172362-1-oupton@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.33.0.685.g46640cef36-goog Subject: [PATCH] selftests: KVM: Call ucall_init when setting up in rseq_test From: Oliver Upton To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu Cc: Marc Zyngier , James Morse , Alexandru Elisei , Suzuki K Poulose , Paolo Bonzini , Jim Mattson , Sean Christopherson , Andrew Jones , Oliver Upton Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org While x86 does not require any additional setup to use the ucall infrastructure, arm64 needs to set up the MMIO address used to signal a ucall to userspace. rseq_test does not initialize the MMIO address, resulting in the test spinning indefinitely. Fix the issue by calling ucall_init() during setup. Fixes: 61e52f1630f5 ("KVM: selftests: Add a test for KVM_RUN+rseq to detect task migration bugs") Signed-off-by: Oliver Upton --- tools/testing/selftests/kvm/rseq_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c index 060538bd405a..c5e0dd664a7b 100644 --- a/tools/testing/selftests/kvm/rseq_test.c +++ b/tools/testing/selftests/kvm/rseq_test.c @@ -180,6 +180,7 @@ int main(int argc, char *argv[]) * CPU affinity. */ vm = vm_create_default(VCPU_ID, 0, guest_code); + ucall_init(vm, NULL); pthread_create(&migration_thread, NULL, migration_worker, 0); -- 2.33.0.685.g46640cef36-goog