From patchwork Mon Aug 16 00:12:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oliver Upton X-Patchwork-Id: 12437497 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 168F0C432BE for ; Mon, 16 Aug 2021 00:13:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F2CCF6137D for ; Mon, 16 Aug 2021 00:13:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232685AbhHPANe (ORCPT ); Sun, 15 Aug 2021 20:13:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232140AbhHPAN3 (ORCPT ); Sun, 15 Aug 2021 20:13:29 -0400 Received: from mail-il1-x149.google.com (mail-il1-x149.google.com [IPv6:2607:f8b0:4864:20::149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCD4CC061764 for ; Sun, 15 Aug 2021 17:12:58 -0700 (PDT) Received: by mail-il1-x149.google.com with SMTP id y20-20020a056e020f5400b00224400d1c21so6844023ilj.11 for ; Sun, 15 Aug 2021 17:12:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=LDn71X/mteHSm80S6t26TyxwkEj27LrlTf7lB/WnK0E=; b=tFGja0lkfeepK+FkjFeq/aVGW+mKNcPoNNlqpTMnu0V3vovCmctbotfMUDQjFSAcD4 6HOZbhkVK/AJkuPU4vE4cvo6B1mF3aDEYLG107YqyjKseSoClfb8cG4UAZjnRyke0Ce+ WkIpMN+ybYGn2RRLaX7uoEOw+pTWEzeY7aTzSFVuig04pceKNl0TVXOGaDRVgK2a8Vhr 2DXYsb5DVrL2L3qN297jolFCHfD3H6kPSjk+gIA/ush9nBL2y5iojzV6Yx6PC74aeADD Cak/sRa9pm9NFS5qTT+cpb8hE/wID6LMeB6ol1Ypc7u2S47YZbKgp0UUN7W+RYGywGaI mVRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=LDn71X/mteHSm80S6t26TyxwkEj27LrlTf7lB/WnK0E=; b=OCXhRbC6eT90M7Or+INfOg8f/grCSjaYYXNyE/6AninWBKn2HB7kbNbYbXK3ppx2Ag jIlTYYNEsfafJGuctGddKcRzybNf14YgnYnM7Oy6ytyxSCdeyekrYP72WXJEHSfbbiFd +KspuB8Tm7LRwS9mzrW2K0aMKR5WE4lvXuanjsHnwpvYAgXnSG2H4HZGpn0uMrxIb4sf ceBCEapyth2tvBLLmfpO9fASex0gav95v1jqSvCRwY5mQbDBgTRld5+ue2Nh94AJOacL rPTXC8UFPaaSXui1SzDn5q7STiiYk+/xtHIhDFSd64zKbimymVnVMUVjXQMa/5AqyMIQ qH9g== X-Gm-Message-State: AOAM532OW55LE6ZmPvdt0EMCDYjraw7W8m7k7sCWxuIt/bk3uWVBI4ri 9XQ59nRJyDnNJbZxXFrejkkUOWTMYACQK5mDzQsTO90Pj+ClZATyT9+q9jjrDjY922RN1Q1aILV JI1mWb/E9aosL0NSw1gzgzue+0OHwvzo2Wkk0pF0k8utY3kZLb0jdoKZMUg== X-Google-Smtp-Source: ABdhPJxBGSNKp7nAwuyx4V4ZkrlD3NGCg0jwXeIu/+7/9/7758jjyZKMe4CTsweb4Xrvpxd+DmoDyTn6Lyo= X-Received: from oupton.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:404]) (user=oupton job=sendgmr) by 2002:a6b:fb07:: with SMTP id h7mr3843368iog.201.1629072778180; Sun, 15 Aug 2021 17:12:58 -0700 (PDT) Date: Mon, 16 Aug 2021 00:12:43 +0000 In-Reply-To: <20210816001246.3067312-1-oupton@google.com> Message-Id: <20210816001246.3067312-7-oupton@google.com> Mime-Version: 1.0 References: <20210816001246.3067312-1-oupton@google.com> X-Mailer: git-send-email 2.33.0.rc1.237.g0d66db33f3-goog Subject: [PATCH v7 6/9] selftests: KVM: Add helper to check for register presence From: Oliver Upton To: kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu Cc: Paolo Bonzini , Sean Christopherson , Marc Zyngier , Peter Shier , Jim Mattson , David Matlack , Ricardo Koller , Jing Zhang , Raghavendra Rao Anata , James Morse , Alexandru Elisei , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, Andrew Jones , Will Deacon , Catalin Marinas , Oliver Upton Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The KVM_GET_REG_LIST vCPU ioctl returns a list of supported registers for a given vCPU. Add a helper to check if a register exists in the list of supported registers. Signed-off-by: Oliver Upton Reviewed-by: Andrew Jones --- .../testing/selftests/kvm/include/kvm_util.h | 2 ++ tools/testing/selftests/kvm/lib/kvm_util.c | 19 +++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index 1b3ef5757819..077082dd2ca7 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -215,6 +215,8 @@ void vcpu_fpu_get(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_fpu *fpu); void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_fpu *fpu); + +bool vcpu_has_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t reg_id); void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg); void vcpu_set_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg); #ifdef __KVM_HAVE_VCPU_EVENTS diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 0fe66ca6139a..a5801d4ed37d 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1823,6 +1823,25 @@ void vcpu_fpu_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_fpu *fpu) ret, errno, strerror(errno)); } +bool vcpu_has_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t reg_id) +{ + struct kvm_reg_list *list; + bool ret = false; + uint64_t i; + + list = vcpu_get_reg_list(vm, vcpuid); + + for (i = 0; i < list->n; i++) { + if (list->reg[i] == reg_id) { + ret = true; + break; + } + } + + free(list); + return ret; +} + void vcpu_get_reg(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_one_reg *reg) { int ret;