projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1ccbf534 JF |
2 | #ifndef _XEN_XEN_H |
| 3 | #define _XEN_XEN_H | |
| 4 | ||
| 11987fbe JN |
5 | #include <linux/types.h> |
| 6 | ||
| 1ccbf534 JF |
7 | enum xen_domain_type { |
| 8 | XEN_NATIVE, /* running on bare hardware */ | |
| 9 | XEN_PV_DOMAIN, /* running in a PV domain */ | |
| 10 | XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ | |
| 11 | }; | |
| 12 | ||
| 13 | #ifdef CONFIG_XEN | |
| 14 | extern enum xen_domain_type xen_domain_type; | |
| 15 | #else | |
| 16 | #define xen_domain_type XEN_NATIVE | |
| 17 | #endif | |
| 18 | ||
| b4feaeb0 JG |
19 | #ifdef CONFIG_XEN_PVH |
| 20 | extern bool xen_pvh; | |
| 21 | #else | |
| 22 | #define xen_pvh 0 | |
| 23 | #endif | |
| 24 | ||
| 1ccbf534 | 25 | #define xen_domain() (xen_domain_type != XEN_NATIVE) |
| b4feaeb0 JG |
26 | #define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) |
| 27 | #define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) | |
| 28 | #define xen_pvh_domain() (xen_pvh) | |
| 1ccbf534 | 29 | |
| 1fe83888 RPM |
30 | extern uint32_t xen_start_flags; |
| 31 | ||
| 358cd9af JG |
32 | #ifdef CONFIG_XEN_PV |
| 33 | extern bool xen_pv_pci_possible; | |
| 34 | #else | |
| 35 | #define xen_pv_pci_possible 0 | |
| 36 | #endif | |
| 37 | ||
| 8cee3974 MW |
38 | #include <xen/interface/hvm/start_info.h> |
| 39 | extern struct hvm_start_info pvh_start_info; | |
| fb9b7b4b AB |
40 | void xen_prepare_pvh(void); |
| 41 | struct pt_regs; | |
| 42 | void xen_pv_evtchn_do_upcall(struct pt_regs *regs); | |
| 8cee3974 | 43 | |
| 1ccbf534 JF |
44 | #ifdef CONFIG_XEN_DOM0 |
| 45 | #include <xen/interface/xen.h> | |
| 46 | #include <asm/xen/hypervisor.h> | |
| 47 | ||
| 4c071ee5 | 48 | #define xen_initial_domain() (xen_domain() && \ |
| 1fe83888 | 49 | (xen_start_flags & SIF_INITDOMAIN)) |
| 1ccbf534 JF |
50 | #else /* !CONFIG_XEN_DOM0 */ |
| 51 | #define xen_initial_domain() (0) | |
| 52 | #endif /* CONFIG_XEN_DOM0 */ | |
| 53 | ||
| 20e32676 | 54 | struct bio_vec; |
| 0383ad43 ML |
55 | struct page; |
| 56 | ||
| 20e32676 | 57 | bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, |
| 0383ad43 | 58 | const struct page *page); |
| 20e32676 | 59 | |
| 1d988ed4 JG |
60 | #if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON) |
| 61 | extern u64 xen_saved_max_mem_size; | |
| 62 | #endif | |
| 63 | ||
| 9dd060af | 64 | #ifdef CONFIG_XEN_UNPOPULATED_ALLOC |
| 9e2369c0 RPM |
65 | int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages); |
| 66 | void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages); | |
| d1a928ea OT |
67 | #include <linux/ioport.h> |
| 68 | int arch_xen_unpopulated_init(struct resource **res); | |
| 9dd060af OT |
69 | #else |
| 70 | #include <xen/balloon.h> | |
| 71 | static inline int xen_alloc_unpopulated_pages(unsigned int nr_pages, | |
| 72 | struct page **pages) | |
| 73 | { | |
| 74 | return xen_alloc_ballooned_pages(nr_pages, pages); | |
| 75 | } | |
| 76 | static inline void xen_free_unpopulated_pages(unsigned int nr_pages, | |
| 77 | struct page **pages) | |
| 78 | { | |
| 79 | xen_free_ballooned_pages(nr_pages, pages); | |
| 80 | } | |
| 81 | #endif | |
| 9e2369c0 | 82 | |
| 073828e9 RPM |
83 | #if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86) |
| 84 | bool __init xen_processor_present(uint32_t acpi_id); | |
| 85 | #else | |
| 86 | #include <linux/bug.h> | |
| 87 | static inline bool xen_processor_present(uint32_t acpi_id) | |
| 88 | { | |
| 89 | BUG(); | |
| 90 | return false; | |
| 91 | } | |
| 92 | #endif | |
| 93 | ||
| 1ccbf534 | 94 | #endif /* _XEN_XEN_H */ |