diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/blkdev.h | 2 | ||||
| -rw-r--r-- | include/linux/compiler.h | 5 | ||||
| -rw-r--r-- | include/linux/fuse.h | 31 | ||||
| -rw-r--r-- | include/linux/genhd.h | 1 | ||||
| -rw-r--r-- | include/linux/ide.h | 46 | ||||
| -rw-r--r-- | include/linux/lguest.h | 4 | ||||
| -rw-r--r-- | include/linux/lguest_launcher.h | 3 | ||||
| -rw-r--r-- | include/linux/module.h | 1 | ||||
| -rw-r--r-- | include/linux/moduleparam.h | 40 | ||||
| -rw-r--r-- | include/linux/virtio.h | 15 | ||||
| -rw-r--r-- | include/linux/virtio_config.h | 49 | ||||
| -rw-r--r-- | include/linux/virtio_pci.h | 10 | ||||
| -rw-r--r-- | include/linux/virtio_ring.h | 8 |
13 files changed, 159 insertions, 56 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ebdfde8fe556..0b1a6cae9de1 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1226,6 +1226,8 @@ struct block_device_operations { int (*direct_access) (struct block_device *, sector_t, void **, unsigned long *); int (*media_changed) (struct gendisk *); + unsigned long long (*set_capacity) (struct gendisk *, + unsigned long long); int (*revalidate_disk) (struct gendisk *); int (*getgeo)(struct block_device *, struct hd_geometry *); struct module *owner; diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 37bcb50a4d7c..04fb5135b4e1 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -261,6 +261,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); # define __section(S) __attribute__ ((__section__(#S))) #endif +/* Are two types/vars the same type (ignoring qualifiers)? */ +#ifndef __same_type +# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) +#endif + /* * Prevent the compiler from merging or refetching accesses. The compiler * is also forbidden from reordering successive instances of ACCESS_ONCE(), diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 162e5defe683..d41ed593f79f 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -121,6 +121,13 @@ struct fuse_file_lock { #define FUSE_BIG_WRITES (1 << 5) /** + * CUSE INIT request/reply flags + * + * CUSE_UNRESTRICTED_IOCTL: use unrestricted ioctl + */ +#define CUSE_UNRESTRICTED_IOCTL (1 << 0) + +/** * Release flags */ #define FUSE_RELEASE_FLUSH (1 << 0) @@ -210,6 +217,9 @@ enum fuse_opcode { FUSE_DESTROY = 38, FUSE_IOCTL = 39, FUSE_POLL = 40, + + /* CUSE specific operations */ + CUSE_INIT = 4096, }; enum fuse_notify_code { @@ -401,6 +411,27 @@ struct fuse_init_out { __u32 max_write; }; +#define CUSE_INIT_INFO_MAX 4096 + +struct cuse_init_in { + __u32 major; + __u32 minor; + __u32 unused; + __u32 flags; +}; + +struct cuse_init_out { + __u32 major; + __u32 minor; + __u32 unused; + __u32 flags; + __u32 max_read; + __u32 max_write; + __u32 dev_major; /* chardev major */ + __u32 dev_minor; /* chardev minor */ + __u32 spare[10]; +}; + struct fuse_interrupt_in { __u64 unique; }; diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 149fda264c86..7cbd38d363a2 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -114,6 +114,7 @@ struct hd_struct { #define GENHD_FL_UP 16 #define GENHD_FL_SUPPRESS_PARTITION_INFO 32 #define GENHD_FL_EXT_DEVT 64 /* allow extended devt */ +#define GENHD_FL_NATIVE_CAPACITY 128 #define BLK_SCSI_MAX_CMDS (256) #define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8)) diff --git a/include/linux/ide.h b/include/linux/ide.h index 867cb68d8461..a6c6a2fad7c8 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -178,7 +178,7 @@ typedef u8 hwif_chipset_t; /* * Structure to hold all information about the location of this port */ -typedef struct hw_regs_s { +struct ide_hw { union { struct ide_io_ports io_ports; unsigned long io_ports_array[IDE_NR_PORTS]; @@ -186,12 +186,11 @@ typedef struct hw_regs_s { int irq; /* our irq number */ ide_ack_intr_t *ack_intr; /* acknowledge interrupt */ - hwif_chipset_t chipset; struct device *dev, *parent; unsigned long config; -} hw_regs_t; +}; -static inline void ide_std_init_ports(hw_regs_t *hw, +static inline void ide_std_init_ports(struct ide_hw *hw, unsigned long io_addr, unsigned long ctl_addr) { @@ -218,21 +217,12 @@ static inline void ide_std_init_ports(hw_regs_t *hw, /* * Special Driver Flags - * - * set_geometry : respecify drive geometry - * recalibrate : seek to cyl 0 - * set_multmode : set multmode count - * reserved : unused */ -typedef union { - unsigned all : 8; - struct { - unsigned set_geometry : 1; - unsigned recalibrate : 1; - unsigned set_multmode : 1; - unsigned reserved : 5; - } b; -} special_t; +enum { + IDE_SFLAG_SET_GEOMETRY = (1 << 0), + IDE_SFLAG_RECALIBRATE = (1 << 1), + IDE_SFLAG_SET_MULTMODE = (1 << 2), +}; /* * Status returned from various ide_ functions @@ -391,6 +381,7 @@ struct ide_drive_s; struct ide_disk_ops { int (*check)(struct ide_drive_s *, const char *); int (*get_capacity)(struct ide_drive_s *); + u64 (*set_capacity)(struct ide_drive_s *, u64); void (*setup)(struct ide_drive_s *); void (*flush)(struct ide_drive_s *); int (*init_media)(struct ide_drive_s *, struct gendisk *); @@ -468,6 +459,8 @@ enum { IDE_DFLAG_NICE1 = (1 << 5), /* device is physically present */ IDE_DFLAG_PRESENT = (1 << 6), + /* disable Host Protected Area */ + IDE_DFLAG_NOHPA = (1 << 7), /* id read from device (synthetic if not set) */ IDE_DFLAG_ID_READ = (1 << 8), IDE_DFLAG_NOPROBE = (1 << 9), @@ -506,6 +499,7 @@ enum { /* write protect */ IDE_DFLAG_WP = (1 << 29), IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 30), + IDE_DFLAG_NIEN_QUIRK = (1 << 31), }; struct ide_drive_s { @@ -530,14 +524,13 @@ struct ide_drive_s { unsigned long sleep; /* sleep until this time */ unsigned long timeout; /* max time to wait for irq */ - special_t special; /* special action flags */ + u8 special_flags; /* special action flags */ u8 select; /* basic drive/head select reg value */ u8 retry_pio; /* retrying dma capable host in pio */ u8 waiting_for_dma; /* dma currently in progress */ u8 dma; /* atapi dma flag */ - u8 quirk_list; /* considered quirky, set for a specific host */ u8 init_speed; /* transfer rate set at boot */ u8 current_speed; /* current transfer rate set */ u8 desired_speed; /* desired transfer rate set */ @@ -562,8 +555,7 @@ struct ide_drive_s { unsigned int drive_data; /* used by set_pio_mode/dev_select() */ unsigned int failures; /* current failure count */ unsigned int max_failures; /* maximum allowed failure count */ - u64 probed_capacity;/* initial reported media capacity (ide-cd only currently) */ - + u64 probed_capacity;/* initial/native media capacity */ u64 capacity64; /* total number of sectors */ int lun; /* logical unit */ @@ -1222,7 +1214,7 @@ static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev) } void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, - hw_regs_t *, hw_regs_t **); + struct ide_hw *, struct ide_hw **); void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); #ifdef CONFIG_BLK_DEV_IDEDMA_PCI @@ -1461,16 +1453,18 @@ static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} void ide_register_region(struct gendisk *); void ide_unregister_region(struct gendisk *); +void ide_check_nien_quirk_list(ide_drive_t *); void ide_undecoded_slave(ide_drive_t *); void ide_port_apply_params(ide_hwif_t *); int ide_sysfs_register_port(ide_hwif_t *); -struct ide_host *ide_host_alloc(const struct ide_port_info *, hw_regs_t **); +struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **, + unsigned int); void ide_host_free(struct ide_host *); int ide_host_register(struct ide_host *, const struct ide_port_info *, - hw_regs_t **); -int ide_host_add(const struct ide_port_info *, hw_regs_t **, + struct ide_hw **); +int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int, struct ide_host **); void ide_host_remove(struct ide_host *); int ide_legacy_device_add(const struct ide_port_info *, unsigned long); diff --git a/include/linux/lguest.h b/include/linux/lguest.h index 175e63f4a8c0..7bc1440fc473 100644 --- a/include/linux/lguest.h +++ b/include/linux/lguest.h @@ -30,6 +30,10 @@ struct lguest_data /* Wallclock time set by the Host. */ struct timespec time; + /* Interrupt pending set by the Host. The Guest should do a hypercall + * if it re-enables interrupts and sees this set (to X86_EFLAGS_IF). */ + int irq_pending; + /* Async hypercall ring. Instead of directly making hypercalls, we can * place them in here for processing the next time the Host wants. * This batching can be quite efficient. */ diff --git a/include/linux/lguest_launcher.h b/include/linux/lguest_launcher.h index a53407a4165c..bfefbdf7498a 100644 --- a/include/linux/lguest_launcher.h +++ b/include/linux/lguest_launcher.h @@ -57,7 +57,8 @@ enum lguest_req LHREQ_INITIALIZE, /* + base, pfnlimit, start */ LHREQ_GETDMA, /* No longer used */ LHREQ_IRQ, /* + irq */ - LHREQ_BREAK, /* + on/off flag (on blocks until someone does off) */ + LHREQ_BREAK, /* No longer used */ + LHREQ_EVENTFD, /* + address, fd. */ }; /* The alignment to use between consumer and producer parts of vring. diff --git a/include/linux/module.h b/include/linux/module.h index a8f2c0aa4c32..a7bc6e7b43a7 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -77,6 +77,7 @@ search_extable(const struct exception_table_entry *first, void sort_extable(struct exception_table_entry *start, struct exception_table_entry *finish); void sort_main_extable(void); +void trim_init_extable(struct module *m); #ifdef MODULE #define MODULE_GENERIC_TABLE(gtype,name) \ diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index a4f0b931846c..6547c3cdbc4c 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -36,9 +36,14 @@ typedef int (*param_set_fn)(const char *val, struct kernel_param *kp); /* Returns length written or -errno. Buffer is 4k (ie. be short!) */ typedef int (*param_get_fn)(char *buffer, struct kernel_param *kp); +/* Flag bits for kernel_param.flags */ +#define KPARAM_KMALLOCED 1 +#define KPARAM_ISBOOL 2 + struct kernel_param { const char *name; - unsigned int perm; + u16 perm; + u16 flags; param_set_fn set; param_get_fn get; union { @@ -79,7 +84,7 @@ struct kparam_array parameters. perm sets the visibility in sysfs: 000 means it's not there, read bits mean it's readable, write bits mean it's writable. */ -#define __module_param_call(prefix, name, set, get, arg, perm) \ +#define __module_param_call(prefix, name, set, get, arg, isbool, perm) \ /* Default value instead of permissions? */ \ static int __param_perm_check_##name __attribute__((unused)) = \ BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)) \ @@ -88,10 +93,13 @@ struct kparam_array static struct kernel_param __moduleparam_const __param_##name \ __used \ __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *)))) \ - = { __param_str_##name, perm, set, get, { arg } } + = { __param_str_##name, perm, isbool ? KPARAM_ISBOOL : 0, \ + set, get, { arg } } #define module_param_call(name, set, get, arg, perm) \ - __module_param_call(MODULE_PARAM_PREFIX, name, set, get, arg, perm) + __module_param_call(MODULE_PARAM_PREFIX, \ + name, set, get, arg, \ + __same_type(*(arg), bool), perm) /* Helper functions: type is byte, short, ushort, int, uint, long, ulong, charp, bool or invbool, or XXX if you define param_get_XXX, @@ -120,15 +128,16 @@ struct kparam_array #define core_param(name, var, type, perm) \ param_check_##type(name, &(var)); \ __module_param_call("", name, param_set_##type, param_get_##type, \ - &var, perm) + &var, __same_type(var, bool), perm) #endif /* !MODULE */ /* Actually copy string: maxlen param is usually sizeof(string). */ #define module_param_string(name, string, len, perm) \ static const struct kparam_string __param_string_##name \ = { len, string }; \ - module_param_call(name, param_set_copystring, param_get_string, \ - .str = &__param_string_##name, perm); \ + __module_param_call(MODULE_PARAM_PREFIX, name, \ + param_set_copystring, param_get_string, \ + .str = &__param_string_##name, 0, perm); \ __MODULE_PARM_TYPE(name, "string") /* Called on module insert or kernel boot */ @@ -186,21 +195,30 @@ extern int param_set_charp(const char *val, struct kernel_param *kp); extern int param_get_charp(char *buffer, struct kernel_param *kp); #define param_check_charp(name, p) __param_check(name, p, char *) +/* For historical reasons "bool" parameters can be (unsigned) "int". */ extern int param_set_bool(const char *val, struct kernel_param *kp); extern int param_get_bool(char *buffer, struct kernel_param *kp); -#define param_check_bool(name, p) __param_check(name, p, int) +#define param_check_bool(name, p) \ + static inline void __check_##name(void) \ + { \ + BUILD_BUG_ON(!__same_type(*(p), bool) && \ + !__same_type(*(p), unsigned int) && \ + !__same_type(*(p), int)); \ + } extern int param_set_invbool(const char *val, struct kernel_param *kp); extern int param_get_invbool(char *buffer, struct kernel_param *kp); -#define param_check_invbool(name, p) __param_check(name, p, int) +#define param_check_invbool(name, p) __param_check(name, p, bool) /* Comma-separated array: *nump is set to number they actually specified. */ #define module_param_array_named(name, array, type, nump, perm) \ static const struct kparam_array __param_arr_##name \ = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type,\ sizeof(array[0]), array }; \ - module_param_call(name, param_array_set, param_array_get, \ - .arr = &__param_arr_##name, perm); \ + __module_param_call(MODULE_PARAM_PREFIX, name, \ + param_array_set, param_array_get, \ + .arr = &__param_arr_##name, \ + __same_type(array[0], bool), perm); \ __MODULE_PARM_TYPE(name, "array of " #type) #define module_param_array(name, type, nump, perm) \ diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 06005fa9e982..4fca4f5440ba 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -10,14 +10,17 @@ /** * virtqueue - a queue to register buffers for sending or receiving. + * @list: the chain of virtqueues for this device * @callback: the function to call when buffers are consumed (can be NULL). + * @name: the name of this virtqueue (mainly for debugging) * @vdev: the virtio device this queue was created for. * @vq_ops: the operations for this virtqueue (see below). * @priv: a pointer for the virtqueue implementation to use. */ -struct virtqueue -{ +struct virtqueue { + struct list_head list; void (*callback)(struct virtqueue *vq); + const char *name; struct virtio_device *vdev; struct virtqueue_ops *vq_ops; void *priv; @@ -76,15 +79,16 @@ struct virtqueue_ops { * @dev: underlying device. * @id: the device type identification (used to match it with a driver). * @config: the configuration ops for this device. + * @vqs: the list of virtqueues for this device. * @features: the features supported by both driver and device. * @priv: private pointer for the driver's use. */ -struct virtio_device -{ +struct virtio_device { int index; struct device dev; struct virtio_device_id id; struct virtio_config_ops *config; + struct list_head vqs; /* Note that this is a Linux set_bit-style bitmap. */ unsigned long features[1]; void *priv; @@ -99,8 +103,7 @@ void unregister_virtio_device(struct virtio_device *dev); * @id_table: the ids serviced by this driver. * @feature_table: an array of feature numbers supported by this device. * @feature_table_size: number of entries in the feature table array. - * @probe: the function to call when a device is found. Returns a token for - * remove, or PTR_ERR(). + * @probe: the function to call when a device is found. Returns 0 or -errno. * @remove: the function when a device is removed. * @config_changed: optional function to call when the device configuration * changes; may be called in interrupt context. diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h index bf8ec283b232..99f514575f6a 100644 --- a/include/linux/virtio_config.h +++ b/include/linux/virtio_config.h @@ -29,6 +29,7 @@ #define VIRTIO_F_NOTIFY_ON_EMPTY 24 #ifdef __KERNEL__ +#include <linux/err.h> #include <linux/virtio.h> /** @@ -49,15 +50,26 @@ * @set_status: write the status byte * vdev: the virtio_device * status: the new status byte + * @request_vqs: request the specified number of virtqueues + * vdev: the virtio_device + * max_vqs: the max number of virtqueues we want + * If supplied, must call before any virtqueues are instantiated. + * To modify the max number of virtqueues after request_vqs has been + * called, call free_vqs and then request_vqs with a new value. + * @free_vqs: cleanup resources allocated by request_vqs + * vdev: the virtio_device + * If supplied, must call after all virtqueues have been deleted. * @reset: reset the device * vdev: the virtio device * After this, status and feature negotiation must be done again - * @find_vq: find a virtqueue and instantiate it. + * @find_vqs: find virtqueues and instantiate them. * vdev: the virtio_device - * index: the 0-based virtqueue number in case there's more than one. - * callback: the virqtueue callback - * Returns the new virtqueue or ERR_PTR() (eg. -ENOENT). - * @del_vq: free a virtqueue found by find_vq(). + * nvqs: the number of virtqueues to find + * vqs: on success, includes new virtqueues + * callbacks: array of callbacks, for each virtqueue + * names: array of virtqueue names (mainly for debugging) + * Returns 0 on success or error status + * @del_vqs: free virtqueues found by find_vqs(). * @get_features: get the array of feature bits for this device. * vdev: the virtio_device * Returns the first 32 feature bits (all we currently need). @@ -66,6 +78,7 @@ * This gives the final feature bits for the device: it can change * the dev->feature bits if it wants. */ +typedef void vq_callback_t(struct virtqueue *); struct virtio_config_ops { void (*get)(struct virtio_device *vdev, unsigned offset, @@ -75,10 +88,11 @@ struct virtio_config_ops u8 (*get_status)(struct virtio_device *vdev); void (*set_status)(struct virtio_device *vdev, u8 status); void (*reset)(struct virtio_device *vdev); - struct virtqueue *(*find_vq)(struct virtio_device *vdev, - unsigned index, - void (*callback)(struct virtqueue *)); - void (*del_vq)(struct virtqueue *vq); + int (*find_vqs)(struct virtio_device *, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]); + void (*del_vqs)(struct virtio_device *); u32 (*get_features)(struct virtio_device *vdev); void (*finalize_features)(struct virtio_device *vdev); }; @@ -99,7 +113,9 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev, if (__builtin_constant_p(fbit)) BUILD_BUG_ON(fbit >= 32); - virtio_check_driver_offered_feature(vdev, fbit); + if (fbit < VIRTIO_TRANSPORT_F_START) + virtio_check_driver_offered_feature(vdev, fbit); + return test_bit(fbit, vdev->features); } @@ -126,5 +142,18 @@ static inline int virtio_config_buf(struct virtio_device *vdev, vdev->config->get(vdev, offset, buf, len); return 0; } + +static inline +struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev, + vq_callback_t *c, const char *n) +{ + vq_callback_t *callbacks[] = { c }; + const char *names[] = { n }; + struct virtqueue *vq; + int err = vdev->config->find_vqs(vdev, 1, &vq, callbacks, names); + if (err < 0) + return ERR_PTR(err); + return vq; +} #endif /* __KERNEL__ */ #endif /* _LINUX_VIRTIO_CONFIG_H */ diff --git a/include/linux/virtio_pci.h b/include/linux/virtio_pci.h index cd0fd5d181a6..9a3d7c48c622 100644 --- a/include/linux/virtio_pci.h +++ b/include/linux/virtio_pci.h @@ -47,9 +47,17 @@ /* The bit of the ISR which indicates a device configuration change. */ #define VIRTIO_PCI_ISR_CONFIG 0x2 +/* MSI-X registers: only enabled if MSI-X is enabled. */ +/* A 16-bit vector for configuration changes. */ +#define VIRTIO_MSI_CONFIG_VECTOR 20 +/* A 16-bit vector for selected queue notifications. */ +#define VIRTIO_MSI_QUEUE_VECTOR 22 +/* Vector value used to disable MSI for queue */ +#define VIRTIO_MSI_NO_VECTOR 0xffff + /* The remaining space is defined by each driver as the per-driver * configuration space */ -#define VIRTIO_PCI_CONFIG 20 +#define VIRTIO_PCI_CONFIG(dev) ((dev)->msix_enabled ? 24 : 20) /* Virtio ABI version, this must match exactly */ #define VIRTIO_PCI_ABI_VERSION 0 diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h index 71e03722fb59..693e0ec5afa6 100644 --- a/include/linux/virtio_ring.h +++ b/include/linux/virtio_ring.h @@ -14,6 +14,8 @@ #define VRING_DESC_F_NEXT 1 /* This marks a buffer as write-only (otherwise read-only). */ #define VRING_DESC_F_WRITE 2 +/* This means the buffer contains a list of buffer descriptors. */ +#define VRING_DESC_F_INDIRECT 4 /* The Host uses this in used->flags to advise the Guest: don't kick me when * you add a buffer. It's unreliable, so it's simply an optimization. Guest @@ -24,6 +26,9 @@ * optimization. */ #define VRING_AVAIL_F_NO_INTERRUPT 1 +/* We support indirect buffer descriptors */ +#define VIRTIO_RING_F_INDIRECT_DESC 28 + /* Virtio ring descriptors: 16 bytes. These can chain together via "next". */ struct vring_desc { @@ -119,7 +124,8 @@ struct virtqueue *vring_new_virtqueue(unsigned int num, struct virtio_device *vdev, void *pages, void (*notify)(struct virtqueue *vq), - void (*callback)(struct virtqueue *vq)); + void (*callback)(struct virtqueue *vq), + const char *name); void vring_del_virtqueue(struct virtqueue *vq); /* Filter out transport-specific feature bits. */ void vring_transport_features(struct virtio_device *vdev); |