Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- src/hw/virtio-pci.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++ src/hw/virtio-ring.h | 5 +++++ 2 files changed, 66 insertions(+)
diff --git a/src/hw/virtio-pci.h b/src/hw/virtio-pci.h index 85e623f..83ebcda 100644 --- a/src/hw/virtio-pci.h +++ b/src/hw/virtio-pci.h @@ -40,6 +40,67 @@ /* Virtio ABI version, this must match exactly */ #define VIRTIO_PCI_ABI_VERSION 0
+/* --- virtio 1.0 (modern) structs ---------------------------------- */ + +/* Common configuration */ +#define VIRTIO_PCI_CAP_COMMON_CFG 1 +/* Notifications */ +#define VIRTIO_PCI_CAP_NOTIFY_CFG 2 +/* ISR access */ +#define VIRTIO_PCI_CAP_ISR_CFG 3 +/* Device specific configuration */ +#define VIRTIO_PCI_CAP_DEVICE_CFG 4 +/* PCI configuration access */ +#define VIRTIO_PCI_CAP_PCI_CFG 5 + +/* This is the PCI capability header: */ +struct virtio_pci_cap { + u8 cap_vndr; /* Generic PCI field: PCI_CAP_ID_VNDR */ + u8 cap_next; /* Generic PCI field: next ptr. */ + u8 cap_len; /* Generic PCI field: capability length */ + u8 cfg_type; /* Identifies the structure. */ + u8 bar; /* Where to find it. */ + u8 padding[3]; /* Pad to full dword. */ + u32 offset; /* Offset within bar. */ + u32 length; /* Length of the structure, in bytes. */ +}; + +struct virtio_pci_notify_cap { + struct virtio_pci_cap cap; + u32 notify_off_multiplier; /* Multiplier for queue_notify_off. */ +}; + +typedef struct virtio_pci_common_cfg { + /* About the whole device. */ + u32 device_feature_select; /* read-write */ + u32 device_feature; /* read-only */ + u32 guest_feature_select; /* read-write */ + u32 guest_feature; /* read-write */ + u16 msix_config; /* read-write */ + u16 num_queues; /* read-only */ + u8 device_status; /* read-write */ + u8 config_generation; /* read-only */ + + /* About a specific virtqueue. */ + u16 queue_select; /* read-write */ + u16 queue_size; /* read-write, power of 2. */ + u16 queue_msix_vector; /* read-write */ + u16 queue_enable; /* read-write */ + u16 queue_notify_off; /* read-only */ + u32 queue_desc_lo; /* read-write */ + u32 queue_desc_hi; /* read-write */ + u32 queue_avail_lo; /* read-write */ + u32 queue_avail_hi; /* read-write */ + u32 queue_used_lo; /* read-write */ + u32 queue_used_hi; /* read-write */ +} virtio_pci_common_cfg; + +typedef struct virtio_pci_isr { + u8 isr; +} virtio_pci_isr; + +/* --- driver structs ----------------------------------------------- */ + struct vp_device { unsigned int ioaddr; }; diff --git a/src/hw/virtio-ring.h b/src/hw/virtio-ring.h index fe5133b..553a508 100644 --- a/src/hw/virtio-ring.h +++ b/src/hw/virtio-ring.h @@ -20,9 +20,14 @@ #define VIRTIO_CONFIG_S_DRIVER 2 /* Driver has used its parts of the config, and is happy */ #define VIRTIO_CONFIG_S_DRIVER_OK 4 +/* Driver has finished configuring features */ +#define VIRTIO_CONFIG_S_FEATURES_OK 8 /* We've given up on this device. */ #define VIRTIO_CONFIG_S_FAILED 0x80
+/* v1.0 compliant. */ +#define VIRTIO_F_VERSION_1 32 + #define MAX_QUEUE_NUM (128)
#define VRING_DESC_F_NEXT 1