/* SPDX-License-Identifier: GPL-2.0 *//****************************************************************************** * Guest OS interface to ARM Xen. * * Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Citrix, 2012 */ #ifndef _ASM_ARM_XEN_INTERFACE_H#define _ASM_ARM_XEN_INTERFACE_H #include <linux/types.h> #define uint64_aligned_t uint64_t __attribute__((aligned(8))) #define __DEFINE_GUEST_HANDLE(name, type) \	typedef struct { union { type *p; uint64_aligned_t q; }; }  \        __guest_handle_ ## name #define DEFINE_GUEST_HANDLE_STRUCT(name) \	__DEFINE_GUEST_HANDLE(name, struct name)#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)#define GUEST_HANDLE(name)        __guest_handle_ ## name #define set_xen_guest_handle(hnd, val)			\	do {						\		if (sizeof(hnd) == 8)			\			*(uint64_t *)&(hnd) = 0;	\		(hnd).p = val;				\	} while (0) #define __HYPERVISOR_platform_op_raw __HYPERVISOR_platform_op #ifndef __ASSEMBLER__/* Explicitly size integers that represent pfns in the interface with * Xen so that we can have one ABI that works for 32 and 64 bit guests. * Note that this means that the xen_pfn_t type may be capable of * representing pfn's which the guest cannot represent in its own pfn * type. However since pfn space is controlled by the guest this is * fine since it simply wouldn't be able to create any sure pfns in * the first place. */typedef uint64_t xen_pfn_t;#define PRI_xen_pfn "llx"typedef uint64_t xen_ulong_t;#define PRI_xen_ulong "llx"typedef int64_t xen_long_t;#define PRI_xen_long "llx"/* Guest handles for primitive C types. */__DEFINE_GUEST_HANDLE(uchar, unsigned char);__DEFINE_GUEST_HANDLE(uint,  unsigned int);DEFINE_GUEST_HANDLE(char);DEFINE_GUEST_HANDLE(int);DEFINE_GUEST_HANDLE(void);DEFINE_GUEST_HANDLE(uint64_t);DEFINE_GUEST_HANDLE(uint32_t);DEFINE_GUEST_HANDLE(xen_pfn_t);DEFINE_GUEST_HANDLE(xen_ulong_t); /* Maximum number of virtual CPUs in multi-processor guests. */#define MAX_VIRT_CPUS 1 struct arch_vcpu_info { };struct arch_shared_info { }; /* TODO: Move pvclock definitions some place arch independent */struct pvclock_vcpu_time_info {	u32   version;	u32   pad0;	u64   tsc_timestamp;	u64   system_time;	u32   tsc_to_system_mul;	s8    tsc_shift;	u8    flags;	u8    pad[2];} __attribute__((__packed__)); /* 32 bytes */ /* It is OK to have a 12 bytes struct with no padding because it is packed */struct pvclock_wall_clock {	u32   version;	u32   sec;	u32   nsec;	u32   sec_hi;} __attribute__((__packed__));#endif #endif /* _ASM_ARM_XEN_INTERFACE_H */