| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _XEN_XEN_H |
| #define _XEN_XEN_H |
| |
| #include <linux/types.h> |
| |
| enum xen_domain_type { |
| XEN_NATIVE, /* running on bare hardware */ |
| XEN_PV_DOMAIN, /* running in a PV domain */ |
| XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ |
| }; |
| |
| #ifdef CONFIG_XEN |
| extern enum xen_domain_type xen_domain_type; |
| #else |
| #define xen_domain_type XEN_NATIVE |
| #endif |
| |
| #ifdef CONFIG_XEN_PVH |
| extern bool xen_pvh; |
| #else |
| #define xen_pvh 0 |
| #endif |
| |
| #define xen_domain() (xen_domain_type != XEN_NATIVE) |
| #define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) |
| #define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) |
| #define xen_pvh_domain() (xen_pvh) |
| |
| extern uint32_t xen_start_flags; |
| |
| #include <xen/interface/hvm/start_info.h> |
| extern struct hvm_start_info pvh_start_info; |
| |
| #ifdef CONFIG_XEN_DOM0 |
| #include <xen/interface/xen.h> |
| #include <asm/xen/hypervisor.h> |
| |
| #define xen_initial_domain() (xen_domain() && \ |
| (xen_start_flags & SIF_INITDOMAIN)) |
| #else /* !CONFIG_XEN_DOM0 */ |
| #define xen_initial_domain() (0) |
| #endif /* CONFIG_XEN_DOM0 */ |
| |
| struct bio_vec; |
| struct page; |
| |
| bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, |
| const struct page *page); |
| |
| #if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON) |
| extern u64 xen_saved_max_mem_size; |
| #endif |
| |
| #ifdef CONFIG_XEN_UNPOPULATED_ALLOC |
| int xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages); |
| void xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages); |
| #include <linux/ioport.h> |
| int arch_xen_unpopulated_init(struct resource **res); |
| #else |
| #include <xen/balloon.h> |
| static inline int xen_alloc_unpopulated_pages(unsigned int nr_pages, |
| struct page **pages) |
| { |
| return xen_alloc_ballooned_pages(nr_pages, pages); |
| } |
| static inline void xen_free_unpopulated_pages(unsigned int nr_pages, |
| struct page **pages) |
| { |
| xen_free_ballooned_pages(nr_pages, pages); |
| } |
| #endif |
| |
| #endif /* _XEN_XEN_H */ |