forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.5 KiB
86 lines
2.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/****************************************************************************** |
|
* Guest OS interface to ARM Xen. |
|
* |
|
* Stefano Stabellini <[email protected]>, 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 __ASSEMBLY__ |
|
/* 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 */
|
|
|