diff options
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/events.h | 9 | ||||
| -rw-r--r-- | include/xen/grant_table.h | 9 | ||||
| -rw-r--r-- | include/xen/interface/elfnote.h | 13 | ||||
| -rw-r--r-- | include/xen/interface/event_channel.h | 68 | ||||
| -rw-r--r-- | include/xen/interface/xen.h | 6 | ||||
| -rw-r--r-- | include/xen/platform_pci.h | 25 | ||||
| -rw-r--r-- | include/xen/xen.h | 14 |
7 files changed, 135 insertions, 9 deletions
diff --git a/include/xen/events.h b/include/xen/events.h index c9ea10ee2273..c9c85cf84895 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -7,6 +7,8 @@ #include <asm/xen/hypercall.h> #include <asm/xen/events.h> +unsigned xen_evtchn_nr_channels(void); + int bind_evtchn_to_irq(unsigned int evtchn); int bind_evtchn_to_irqhandler(unsigned int evtchn, irq_handler_t handler, @@ -37,6 +39,11 @@ int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain, */ void unbind_from_irqhandler(unsigned int irq, void *dev_id); +#define XEN_IRQ_PRIORITY_MAX EVTCHN_FIFO_PRIORITY_MAX +#define XEN_IRQ_PRIORITY_DEFAULT EVTCHN_FIFO_PRIORITY_DEFAULT +#define XEN_IRQ_PRIORITY_MIN EVTCHN_FIFO_PRIORITY_MIN +int xen_set_irq_priority(unsigned irq, unsigned priority); + /* * Allow extra references to event channels exposed to userspace by evtchn */ @@ -73,6 +80,8 @@ void xen_poll_irq_timeout(int irq, u64 timeout); /* Determine the IRQ which is bound to an event channel */ unsigned irq_from_evtchn(unsigned int evtchn); +int irq_from_virq(unsigned int cpu, unsigned int virq); +unsigned int evtchn_from_irq(unsigned irq); /* Xen HVM evtchn vector callback */ void xen_hvm_callback_vector(void); diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h index 694dcaf266e6..5acb1e4ac0d3 100644 --- a/include/xen/grant_table.h +++ b/include/xen/grant_table.h @@ -178,8 +178,15 @@ int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes, grant_status_t **__shared); void arch_gnttab_unmap(void *shared, unsigned long nr_gframes); -extern unsigned long xen_hvm_resume_frames; +struct grant_frames { + xen_pfn_t *pfn; + unsigned int count; + void *vaddr; +}; +extern struct grant_frames xen_auto_xlat_grant_frames; unsigned int gnttab_max_grant_frames(void); +int gnttab_setup_auto_xlat_frames(unsigned long addr); +void gnttab_free_auto_xlat_frames(void); #define gnttab_map_vaddr(map) ((void *)(map.host_virt_addr)) diff --git a/include/xen/interface/elfnote.h b/include/xen/interface/elfnote.h index 0360b15f4883..6f4eae328ca7 100644 --- a/include/xen/interface/elfnote.h +++ b/include/xen/interface/elfnote.h @@ -140,6 +140,19 @@ */ #define XEN_ELFNOTE_SUSPEND_CANCEL 14 +/* + * The features supported by this kernel (numeric). + * + * Other than XEN_ELFNOTE_FEATURES on pre-4.2 Xen, this note allows a + * kernel to specify support for features that older hypervisors don't + * know about. The set of features 4.2 and newer hypervisors will + * consider supported by the kernel is the combination of the sets + * specified through this and the string note. + * + * LEGACY: FEATURES + */ +#define XEN_ELFNOTE_SUPPORTED_FEATURES 17 + #endif /* __XEN_PUBLIC_ELFNOTE_H__ */ /* diff --git a/include/xen/interface/event_channel.h b/include/xen/interface/event_channel.h index f4942921e202..7e6acef5415b 100644 --- a/include/xen/interface/event_channel.h +++ b/include/xen/interface/event_channel.h @@ -190,6 +190,39 @@ struct evtchn_reset { }; typedef struct evtchn_reset evtchn_reset_t; +/* + * EVTCHNOP_init_control: initialize the control block for the FIFO ABI. + */ +#define EVTCHNOP_init_control 11 +struct evtchn_init_control { + /* IN parameters. */ + uint64_t control_gfn; + uint32_t offset; + uint32_t vcpu; + /* OUT parameters. */ + uint8_t link_bits; + uint8_t _pad[7]; +}; + +/* + * EVTCHNOP_expand_array: add an additional page to the event array. + */ +#define EVTCHNOP_expand_array 12 +struct evtchn_expand_array { + /* IN parameters. */ + uint64_t array_gfn; +}; + +/* + * EVTCHNOP_set_priority: set the priority for an event channel. + */ +#define EVTCHNOP_set_priority 13 +struct evtchn_set_priority { + /* IN parameters. */ + uint32_t port; + uint32_t priority; +}; + struct evtchn_op { uint32_t cmd; /* EVTCHNOP_* */ union { @@ -207,4 +240,39 @@ struct evtchn_op { }; DEFINE_GUEST_HANDLE_STRUCT(evtchn_op); +/* + * 2-level ABI + */ + +#define EVTCHN_2L_NR_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64) + +/* + * FIFO ABI + */ + +/* Events may have priorities from 0 (highest) to 15 (lowest). */ +#define EVTCHN_FIFO_PRIORITY_MAX 0 +#define EVTCHN_FIFO_PRIORITY_DEFAULT 7 +#define EVTCHN_FIFO_PRIORITY_MIN 15 + +#define EVTCHN_FIFO_MAX_QUEUES (EVTCHN_FIFO_PRIORITY_MIN + 1) + +typedef uint32_t event_word_t; + +#define EVTCHN_FIFO_PENDING 31 +#define EVTCHN_FIFO_MASKED 30 +#define EVTCHN_FIFO_LINKED 29 +#define EVTCHN_FIFO_BUSY 28 + +#define EVTCHN_FIFO_LINK_BITS 17 +#define EVTCHN_FIFO_LINK_MASK ((1 << EVTCHN_FIFO_LINK_BITS) - 1) + +#define EVTCHN_FIFO_NR_CHANNELS (1 << EVTCHN_FIFO_LINK_BITS) + +struct evtchn_fifo_control_block { + uint32_t ready; + uint32_t _rsvd; + event_word_t head[EVTCHN_FIFO_MAX_QUEUES]; +}; + #endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */ diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h index 53ec4167bd0b..0cd5ca333fac 100644 --- a/include/xen/interface/xen.h +++ b/include/xen/interface/xen.h @@ -281,12 +281,6 @@ struct multicall_entry { }; DEFINE_GUEST_HANDLE_STRUCT(multicall_entry); -/* - * Event channel endpoints per domain: - * 1024 if a long is 32 bits; 4096 if a long is 64 bits. - */ -#define NR_EVENT_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64) - struct vcpu_time_info { /* * Updates to the following values are preceded and followed diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h index 438c256c274b..5c52b5583917 100644 --- a/include/xen/platform_pci.h +++ b/include/xen/platform_pci.h @@ -46,6 +46,27 @@ static inline int xen_must_unplug_disks(void) { #endif } -extern int xen_platform_pci_unplug; - +#if defined(CONFIG_XEN_PVHVM) +extern bool xen_has_pv_devices(void); +extern bool xen_has_pv_disk_devices(void); +extern bool xen_has_pv_nic_devices(void); +extern bool xen_has_pv_and_legacy_disk_devices(void); +#else +static inline bool xen_has_pv_devices(void) +{ + return IS_ENABLED(CONFIG_XEN); +} +static inline bool xen_has_pv_disk_devices(void) +{ + return IS_ENABLED(CONFIG_XEN); +} +static inline bool xen_has_pv_nic_devices(void) +{ + return IS_ENABLED(CONFIG_XEN); +} +static inline bool xen_has_pv_and_legacy_disk_devices(void) +{ + return false; +} +#endif #endif /* _XEN_PLATFORM_PCI_H */ diff --git a/include/xen/xen.h b/include/xen/xen.h index a74d4362c4f8..0c0e3ef4c45d 100644 --- a/include/xen/xen.h +++ b/include/xen/xen.h @@ -29,4 +29,18 @@ extern enum xen_domain_type xen_domain_type; #define xen_initial_domain() (0) #endif /* CONFIG_XEN_DOM0 */ +#ifdef CONFIG_XEN_PVH +/* This functionality exists only for x86. The XEN_PVHVM support exists + * only in x86 world - hence on ARM it will be always disabled. + * N.B. ARM guests are neither PV nor HVM nor PVHVM. + * It's a bit like PVH but is different also (it's further towards the H + * end of the spectrum than even PVH). + */ +#include <xen/features.h> +#define xen_pvh_domain() (xen_pv_domain() && \ + xen_feature(XENFEAT_auto_translated_physmap) && \ + xen_have_vector_callback) +#else +#define xen_pvh_domain() (0) +#endif #endif /* _XEN_XEN_H */ |