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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _XEN_XEN_H
- #define _XEN_XEN_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)
- #include <linux/types.h>
- 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
- #if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86)
- bool __init xen_processor_present(uint32_t acpi_id);
- #else
- #include <linux/bug.h>
- static inline bool xen_processor_present(uint32_t acpi_id)
- {
- BUG();
- return false;
- }
- #endif
- #endif /* _XEN_XEN_H */
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