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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 0D48CC12002 for ; Wed, 21 Jul 2021 15:15:11 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 83A7E61245 for ; Wed, 21 Jul 2021 15:15:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83A7E61245 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 C53584B0DD; Wed, 21 Jul 2021 11:15:09 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@redhat.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ykQ+rnzQPCOO; Wed, 21 Jul 2021 11:15:08 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9656E4B0E1; Wed, 21 Jul 2021 11:15:08 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 096DD4B0DB for ; Wed, 21 Jul 2021 11:15:07 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gQcRC0UeHtZ8 for ; Wed, 21 Jul 2021 11:15:05 -0400 (EDT) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mm01.cs.columbia.edu (Postfix) with ESMTP id EBDFC4B0CA for ; Wed, 21 Jul 2021 11:15:05 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1626880505; 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: in-reply-to:in-reply-to:references:references; bh=QaTP1Yo6qFFIt4Y2xC3JPRyG4PRe8kuKhGKAihywiRs=; b=Gzuac4TGVwY1idv6sM3eG7qo6UGOrsnGLnz/4ttRBze7qHrUpBSDgFTRKEaSoOw/QVLm5n XLmS5zOWRQXTfqI6zWoz5ffgu3yYwb0YsC+3mMWekOpToj/O+GWxEWHlImtEN0mPobC9pl zYqFoMP4nIxNSMhj1CIleYpd0MA2JPM= Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-104-LL3wPNTVOt2njgWuyLBVvw-1; Wed, 21 Jul 2021 11:15:02 -0400 X-MC-Unique: LL3wPNTVOt2njgWuyLBVvw-1 Received: by mail-io1-f70.google.com with SMTP id l15-20020a5e820f0000b02904bd1794d00eso1801654iom.7 for ; Wed, 21 Jul 2021 08:15:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=QaTP1Yo6qFFIt4Y2xC3JPRyG4PRe8kuKhGKAihywiRs=; b=UdEbfN7/fjPKCvAM7kjPXqBK8ogNV9tlWcuSfa3KUbdIOZ0o6P6Se/JFDQPqgAsLwF MIcNpTrkquo7BX9bLukHdSQGrCjSQjhqa1XSzm2V50xAo0KA4KdZg6oo7kNj+1l5itIm 2Gk2ueyyqf/47Q27QhKgMDyFZ65t1z4RdOV09C6KGh4J9vtYMayJ1XdrSFLW4XxD0UHI 3B61nHRbFT+Pqz4dyO8k7a4gtrXOal6fBIJPPg4vUXSR+00esNnLxY3XVDWIrCOhD6pv I1h1MKj4WyUNvjDv4MAKAaM728zjW9RZdesuIu4IHwt/eh0Ak606jSBVSD4wx4Cyk65o +kcw== X-Gm-Message-State: AOAM533X/b8H6YFa/FxxejVYnrcicgNhUwdGSYGP5c56C8cWuWxYESj2 ZkXM65n+GR6eOkG57SKLFTlSd0QfjjhBPpwRpNwdjOKf3FD6m/xxNxp6AwDDGZ9r/HLtA6KPKXC bALJswp8Ai3kbjRFfrX3FcmFd X-Received: by 2002:a92:cb52:: with SMTP id f18mr24584240ilq.97.1626880501559; Wed, 21 Jul 2021 08:15:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzd/FbgpVsG1uAQQs/xRFLiKXf0pWWdYmq3RBA6j5gX0EFKv9+U0ZQHs17k7En54hjmVGaIUw== X-Received: by 2002:a92:cb52:: with SMTP id f18mr24584222ilq.97.1626880501393; Wed, 21 Jul 2021 08:15:01 -0700 (PDT) Received: from gator ([140.82.166.162]) by smtp.gmail.com with ESMTPSA id p18sm13090910ile.25.2021.07.21.08.15.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Jul 2021 08:15:00 -0700 (PDT) Date: Wed, 21 Jul 2021 17:14:58 +0200 From: Andrew Jones To: Oliver Upton Subject: Re: [PATCH v2 06/12] selftests: KVM: Add helpers for vCPU device attributes Message-ID: <20210721151458.bsfbjtk7rmlupfve@gator> References: <20210716212629.2232756-1-oupton@google.com> <20210716212629.2232756-7-oupton@google.com> MIME-Version: 1.0 In-Reply-To: <20210716212629.2232756-7-oupton@google.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=drjones@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: kvm@vger.kernel.org, Marc Zyngier , Raghavendra Rao Anata , Peter Shier , Sean Christopherson , David Matlack , Paolo Bonzini , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, Jim Mattson X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Fri, Jul 16, 2021 at 09:26:23PM +0000, Oliver Upton wrote: > vCPU file descriptors are abstracted away from test code in KVM > selftests, meaning that tests cannot directly access a vCPU's device > attributes. Add helpers that tests can use to get at vCPU device > attributes. > > Signed-off-by: Oliver Upton > --- > .../testing/selftests/kvm/include/kvm_util.h | 9 +++++ > tools/testing/selftests/kvm/lib/kvm_util.c | 38 +++++++++++++++++++ > 2 files changed, 47 insertions(+) > > diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h > index a8ac5d52e17b..1b3ef5757819 100644 > --- a/tools/testing/selftests/kvm/include/kvm_util.h > +++ b/tools/testing/selftests/kvm/include/kvm_util.h > @@ -240,6 +240,15 @@ int _kvm_device_access(int dev_fd, uint32_t group, uint64_t attr, > int kvm_device_access(int dev_fd, uint32_t group, uint64_t attr, > void *val, bool write); > > +int _vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr); > +int vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr); > +int _vcpu_access_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr, void *val, bool write); > +int vcpu_access_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr, void *val, bool write); > + > const char *exit_reason_str(unsigned int exit_reason); > > void virt_pgd_alloc(struct kvm_vm *vm); > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c > index 10a8ed691c66..b595e7dc3fc5 100644 > --- a/tools/testing/selftests/kvm/lib/kvm_util.c > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c > @@ -2040,6 +2040,44 @@ int kvm_device_access(int dev_fd, uint32_t group, uint64_t attr, > return ret; > } > > +int _vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr) > +{ > + struct vcpu *vcpu = vcpu_find(vm, vcpuid); > + > + TEST_ASSERT(vcpu, "nonexistent vcpu id: %d", vcpuid); > + > + return _kvm_device_check_attr(vcpu->fd, group, attr); > +} > + > +int vcpu_has_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr) > +{ > + int ret = _vcpu_has_device_attr(vm, vcpuid, group, attr); > + > + TEST_ASSERT(!ret, "KVM_HAS_DEVICE_ATTR IOCTL failed, rc: %i errno: %i", ret, errno); > + return ret; > +} > + > +int _vcpu_access_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr, void *val, bool write) > +{ > + struct vcpu *vcpu = vcpu_find(vm, vcpuid); > + > + TEST_ASSERT(vcpu, "nonexistent vcpu id: %d", vcpuid); > + > + return _kvm_device_access(vcpu->fd, group, attr, val, write); > +} > + > +int vcpu_access_device_attr(struct kvm_vm *vm, uint32_t vcpuid, uint32_t group, > + uint64_t attr, void *val, bool write) > +{ > + int ret = _vcpu_access_device_attr(vm, vcpuid, group, attr, val, write); > + > + TEST_ASSERT(!ret, "KVM_SET|GET_DEVICE_ATTR IOCTL failed, rc: %i errno: %i", ret, errno); > + return ret; > +} Reviewed-by: Andrew Jones The 'assert !ret's are correct here. I see they are not correct in kvm_device_check_attr kvm_create_device kvm_device_access though, as they are 'assert ret >= 0', but the documentation says 0 on success. It'd be nice to get that fixed before we build more API on top of it. Thanks, drew > + > /* > * VM Dump > * > -- > 2.32.0.402.g57bb445576-goog > > _______________________________________________ > kvmarm mailing list > kvmarm@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/kvmarm > _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm