ef32f89298
This correctly sizes it as 64 bit on ARM but leaves it as unsigned long on x86 (therefore no intended change on x86). The long and ulong guest handles are now unused (and a bit dangerous) so remove them. Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/******************************************************************************
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* Guest OS interface to ARM Xen.
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*
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* Stefano Stabellini <stefano.stabellini@eu.citrix.com>, Citrix, 2012
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*/
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#ifndef _ASM_ARM_XEN_INTERFACE_H
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#define _ASM_ARM_XEN_INTERFACE_H
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#include <linux/types.h>
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#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
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#define __DEFINE_GUEST_HANDLE(name, type) \
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typedef struct { union { type *p; uint64_aligned_t q; }; } \
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__guest_handle_ ## name
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#define DEFINE_GUEST_HANDLE_STRUCT(name) \
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__DEFINE_GUEST_HANDLE(name, struct name)
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#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
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#define GUEST_HANDLE(name) __guest_handle_ ## name
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#define set_xen_guest_handle(hnd, val) \
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do { \
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if (sizeof(hnd) == 8) \
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*(uint64_t *)&(hnd) = 0; \
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(hnd).p = val; \
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} while (0)
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#ifndef __ASSEMBLY__
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/* Explicitly size integers that represent pfns in the interface with
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* Xen so that we can have one ABI that works for 32 and 64 bit guests. */
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typedef uint64_t xen_pfn_t;
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#define PRI_xen_pfn "llx"
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typedef uint64_t xen_ulong_t;
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#define PRI_xen_ulong "llx"
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/* Guest handles for primitive C types. */
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__DEFINE_GUEST_HANDLE(uchar, unsigned char);
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__DEFINE_GUEST_HANDLE(uint, unsigned int);
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DEFINE_GUEST_HANDLE(char);
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DEFINE_GUEST_HANDLE(int);
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DEFINE_GUEST_HANDLE(void);
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DEFINE_GUEST_HANDLE(uint64_t);
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DEFINE_GUEST_HANDLE(uint32_t);
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DEFINE_GUEST_HANDLE(xen_pfn_t);
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/* Maximum number of virtual CPUs in multi-processor guests. */
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#define MAX_VIRT_CPUS 1
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struct arch_vcpu_info { };
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struct arch_shared_info { };
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/* TODO: Move pvclock definitions some place arch independent */
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struct pvclock_vcpu_time_info {
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u32 version;
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u32 pad0;
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u64 tsc_timestamp;
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u64 system_time;
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u32 tsc_to_system_mul;
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s8 tsc_shift;
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u8 flags;
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u8 pad[2];
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} __attribute__((__packed__)); /* 32 bytes */
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/* It is OK to have a 12 bytes struct with no padding because it is packed */
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struct pvclock_wall_clock {
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u32 version;
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u32 sec;
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u32 nsec;
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} __attribute__((__packed__));
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#endif
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#endif /* _ASM_ARM_XEN_INTERFACE_H */
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