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[80.11.198.90]) by mx.google.com with ESMTPSA id tl3sm8157099wjc.20.2015.07.02.06.17.58 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 02 Jul 2015 06:18:00 -0700 (PDT) From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, christoffer.dall@linaro.org, marc.zyngier@arm.com, alex.williamson@redhat.com, pbonzini@redhat.com, avi.kivity@gmail.com, mtosatti@redhat.com, feng.wu@intel.com, joro@8bytes.org, b.reynal@virtualopensystems.com Subject: [RFC 03/17] VFIO: Introduce vfio_device_external_ops Date: Thu, 2 Jul 2015 15:17:13 +0200 Message-Id: <1435843047-6327-4-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1435843047-6327-1-git-send-email-eric.auger@linaro.org> References: <1435843047-6327-1-git-send-email-eric.auger@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150702_061818_422160_C3FD8FF6 X-CRM114-Status: GOOD ( 12.29 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, patches@linaro.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP New bus callbacks are introduced. They correspond to external functions. To avoid messing up the main vfio_device_ops struct, a new vfio_device_external_ops struct is introduced. Signed-off-by: Eric Auger --- v6: creation --- include/linux/vfio.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/vfio.h b/include/linux/vfio.h index ddb4409..d79e8a9 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -19,6 +19,23 @@ #include /** + * struct vfio_device_external_ops - VFIO bus driver device callbacks + * used as external API + * @mask: mask any IRQ defined by triplet + * @is_active: returns whether any IRQ defined by triplet is active + * @set_automasked: sets the automasked flag of triplet's IRQ + */ +struct vfio_device_external_ops { + int (*mask)(void *device_data, unsigned index, unsigned start, + unsigned count); + int (*is_active)(void *device_data, unsigned index, unsigned start, + unsigned count); + int (*set_automasked)(void *device_data, unsigned index, + unsigned start, unsigned count, + bool automasked); +}; + +/** * struct vfio_device_ops - VFIO bus driver device callbacks * * @open: Called when userspace creates new file descriptor for device @@ -42,6 +59,7 @@ struct vfio_device_ops { unsigned long arg); int (*mmap)(void *device_data, struct vm_area_struct *vma); void (*request)(void *device_data, unsigned int count); + struct vfio_device_external_ops *external_ops; }; extern int vfio_add_group_dev(struct device *dev,