18549Sjkh/* SPDX-License-Identifier: GPL-2.0 */ 250479Speter#ifndef _XEN_XEN_H 38549Sjkh#define _XEN_XEN_H 48549Sjkh 58549Sjkh#include <linux/types.h> 617985Sjkh 717985Sjkhenum xen_domain_type { 88549Sjkh XEN_NATIVE, /* running on bare hardware */ 98549Sjkh XEN_PV_DOMAIN, /* running in a PV domain */ 108549Sjkh XEN_HVM_DOMAIN, /* running in a Xen hvm domain */ 118549Sjkh}; 128549Sjkh 138881Srgrimes#ifdef CONFIG_XEN 148881Srgrimesextern enum xen_domain_type xen_domain_type; 158549Sjkh#else 168549Sjkh#define xen_domain_type XEN_NATIVE 178549Sjkh#endif 188549Sjkh 198549Sjkh#ifdef CONFIG_XEN_PVH 2017985Sjkhextern bool xen_pvh; 218677Sjkh#else 228677Sjkh#define xen_pvh 0 2317985Sjkh#endif 248677Sjkh 258677Sjkh#define xen_domain() (xen_domain_type != XEN_NATIVE) 268677Sjkh#define xen_pv_domain() (xen_domain_type == XEN_PV_DOMAIN) 278677Sjkh#define xen_hvm_domain() (xen_domain_type == XEN_HVM_DOMAIN) 288677Sjkh#define xen_pvh_domain() (xen_pvh) 298677Sjkh 308549Sjkhextern uint32_t xen_start_flags; 318549Sjkh 328549Sjkh#ifdef CONFIG_XEN_PV 338756Sjkhextern bool xen_pv_pci_possible; 348756Sjkh#else 358756Sjkh#define xen_pv_pci_possible 0 368756Sjkh#endif 378756Sjkh 388756Sjkh#include <xen/interface/hvm/start_info.h> 398756Sjkhextern struct hvm_start_info pvh_start_info; 4021243Sjkhvoid xen_prepare_pvh(void); 418549Sjkhstruct pt_regs; 4263118Sumevoid xen_pv_evtchn_do_upcall(struct pt_regs *regs); 4363118Sume 4463118Sume#ifdef CONFIG_XEN_DOM0 4550780Sjkh#include <xen/interface/xen.h> 468549Sjkh#include <asm/xen/hypervisor.h> 4714321Sjkh 4814321Sjkh#define xen_initial_domain() (xen_domain() && \ 4914321Sjkh (xen_start_flags & SIF_INITDOMAIN)) 508574Sgpalmer#else /* !CONFIG_XEN_DOM0 */ 518574Sgpalmer#define xen_initial_domain() (0) 5212661Speter#endif /* CONFIG_XEN_DOM0 */ 5363118Sume 5412661Speterstruct bio_vec; 5512661Speterstruct page; 5663118Sume 578549Sjkhbool xen_biovec_phys_mergeable(const struct bio_vec *vec1, 588574Sgpalmer const struct page *page); 598549Sjkh 608549Sjkh#if defined(CONFIG_MEMORY_HOTPLUG) && defined(CONFIG_XEN_BALLOON) 618549Sjkhextern u64 xen_saved_max_mem_size; 628549Sjkh#endif 638549Sjkh 648549Sjkh#ifdef CONFIG_XEN_UNPOPULATED_ALLOC 6520484Sjkhint xen_alloc_unpopulated_pages(unsigned int nr_pages, struct page **pages); 6621243Sjkhvoid xen_free_unpopulated_pages(unsigned int nr_pages, struct page **pages); 6717985Sjkh#include <linux/ioport.h> 688549Sjkhint arch_xen_unpopulated_init(struct resource **res); 6920484Sjkh#else 7021243Sjkh#include <xen/balloon.h> 7117985Sjkhstatic inline int xen_alloc_unpopulated_pages(unsigned int nr_pages, 728549Sjkh struct page **pages) 738549Sjkh{ 7420484Sjkh return xen_alloc_ballooned_pages(nr_pages, pages); 7521243Sjkh} 7663118Sumestatic inline void xen_free_unpopulated_pages(unsigned int nr_pages, 7763118Sume struct page **pages) 788549Sjkh{ 7920484Sjkh xen_free_ballooned_pages(nr_pages, pages); 8063118Sume} 8163118Sume#endif 828556Sjkh 8320484Sjkh#if defined(CONFIG_XEN_DOM0) && defined(CONFIG_ACPI) && defined(CONFIG_X86) 8421243Sjkhbool __init xen_processor_present(uint32_t acpi_id); 8563118Sume#else 8663118Sume#include <linux/bug.h> 878549Sjkhstatic inline bool xen_processor_present(uint32_t acpi_id) 8820484Sjkh{ 8921243Sjkh BUG(); 908549Sjkh return false; 9112661Speter} 928549Sjkh#endif 9320484Sjkh 9421243Sjkh#endif /* _XEN_XEN_H */ 958556Sjkh