diff options
Diffstat (limited to 'virtio-v1.0-wd01-part1-specification.txt')
| -rw-r--r-- | virtio-v1.0-wd01-part1-specification.txt | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/virtio-v1.0-wd01-part1-specification.txt b/virtio-v1.0-wd01-part1-specification.txt index ccca708..4461a91 100644 --- a/virtio-v1.0-wd01-part1-specification.txt +++ b/virtio-v1.0-wd01-part1-specification.txt @@ -1074,16 +1074,16 @@ on capability list in PCI configuration space of the device. This virtio structure capability uses little-endian format; all bits are read-only: -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. */ - le32 offset; /* Offset within bar. */ - le32 length; /* Length of the structure, in bytes. */ -}; + 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. */ + le32 offset; /* Offset within bar. */ + le32 length; /* Length of the structure, in bytes. */ + }; This structure can optionally followed by extra data, depending on other fields, as documented below. @@ -1844,18 +1844,18 @@ In addition to the basic channel commands, virtio-ccw defines a set of channel commands related to configuration and operation of virtio: -#define CCW_CMD_SET_VQ 0x13 -#define CCW_CMD_VDEV_RESET 0x33 -#define CCW_CMD_SET_IND 0x43 -#define CCW_CMD_SET_CONF_IND 0x53 -#define CCW_CMD_SET_IND_ADAPTER 0x73 -#define CCW_CMD_READ_FEAT 0x12 -#define CCW_CMD_WRITE_FEAT 0x11 -#define CCW_CMD_READ_CONF 0x22 -#define CCW_CMD_WRITE_CONF 0x21 -#define CCW_CMD_WRITE_STATUS 0x31 -#define CCW_CMD_READ_VQ_CONF 0x32 -#define CCW_CMD_SET_VIRTIO_REV 0x83 + #define CCW_CMD_SET_VQ 0x13 + #define CCW_CMD_VDEV_RESET 0x33 + #define CCW_CMD_SET_IND 0x43 + #define CCW_CMD_SET_CONF_IND 0x53 + #define CCW_CMD_SET_IND_ADAPTER 0x73 + #define CCW_CMD_READ_FEAT 0x12 + #define CCW_CMD_WRITE_FEAT 0x11 + #define CCW_CMD_READ_CONF 0x22 + #define CCW_CMD_WRITE_CONF 0x21 + #define CCW_CMD_WRITE_STATUS 0x31 + #define CCW_CMD_READ_VQ_CONF 0x32 + #define CCW_CMD_SET_VIRTIO_REV 0x83 The virtio-ccw device acts like a normal channel device, as specified in [S390 PoP] and [S390 Common I/O]. In particular: @@ -1886,11 +1886,11 @@ CCW_CMD_SET_VIRTIO_REV is issued by the driver to set the revision of the virtio-ccw transport it intends to drive the device with. It uses the following communication structure: -struct virtio_rev_info { - __u16 revision; - __u16 length; - __u8 data[]; -}; + struct virtio_rev_info { + __u16 revision; + __u16 length; + __u8 data[]; + }; revision contains the desired revision id, length the length of the data portion and data revision-dependent additional desired options. @@ -2125,12 +2125,12 @@ To communicate the location of the summary and queue indicator bits, the driver uses the CCW_CMD_SET_IND_ADAPTER command with the following payload: -struct virtio_thinint_area { - be64 summary_indicator; - be64 indicator; - be64 bit_nr; - u8 isc; -} __attribute__ ((packed)); + struct virtio_thinint_area { + be64 summary_indicator; + be64 indicator; + be64 bit_nr; + u8 isc; + } __attribute__ ((packed)); summary_indicator contains the guest address of the 8 bit summary indicator. |