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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=IUAgcYkag1NiPbd+mXPBp8dXhawZvssq6Di9/a5YdLs=; b=ZpsM7OaqYI/8LsZRfZF/o2VNcEoYIY13ncA4ne+FhTPbaz7x0nhM3brr4YSMhtsC5y qB4Sy3dxwDxGf9zq7UBnkxf3h7dmts984z81hYiT4F/j+LLKW3TDwBLewjZX3eg3Ib3k HWwpTF3CZAdeHmMELRRMudGCRwMbUO8TOXGMlmzI0qWjpuqoJbzgSOYpdD/KQNF3znoo UxCf+8QrAKY83EI796vZaRMnmI/HLARF8W3r3FFJXZGpQBY9cmvT6uTfVVB3ORtGN/9Q uP9yv8739LkfWHm9MAAiKC3c1be5mK1G6K15AH0+JfOegp3gD5214EV3Zc38CWDhS2Z1 FlKw== X-Gm-Message-State: AOAM533GfNdJZcPOywKQj7VvdylPXthPlRD2WFXyH/0ZphqktRG9tsGp i8V/XHrRGLCfHoBmC4jsR8Ytb98oqEo= X-Google-Smtp-Source: ABdhPJwQrrrfQJGqhb5/fUcliWc42ytbyzvsoA7Gc/SMvqHBRfXEhx/woyJjI1XZIgpXTcBJLyECPgAvLrI= X-Received: from oupton.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:404]) (user=oupton job=sendgmr) by 2002:a25:9d0f:: with SMTP id i15mr3056274ybp.311.1627517428919; Wed, 28 Jul 2021 17:10:28 -0700 (PDT) Date: Thu, 29 Jul 2021 00:10:06 +0000 In-Reply-To: <20210729001012.70394-1-oupton@google.com> Message-Id: <20210729001012.70394-8-oupton@google.com> Mime-Version: 1.0 References: <20210729001012.70394-1-oupton@google.com> X-Mailer: git-send-email 2.32.0.432.gabb21c7263-goog Subject: [PATCH v4 07/13] selftests: KVM: Add helpers for vCPU device attributes 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 , Oliver Upton X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210728_171030_455659_F0633A7C X-CRM114-Status: UNSURE ( 9.52 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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. Reviewed-by: Andrew Jones 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 0ffc2d39c80d..0fe66ca6139a 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; +} + /* * VM Dump *