blob: b664d9c9c72a7f7fed40e8501f79a0bc7b8ac1d1 [file] [log] [blame]
#ifndef __XEN_H
#define __XEN_H
#include "config.h" // CONFIG_*
#include "types.h" // u32
extern u32 xen_cpuid_base;
void xen_probe(void);
void xen_setup(void);
void xen_init_hypercalls(void);
void xen_copy_biostables(void);
static inline int usingXen(void) {
if (!CONFIG_XEN)
return 0;
return (xen_cpuid_base != 0);
}
extern unsigned long xen_hypercall_page;
#define _hypercall0(type, name) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res) \
: "0" (__hentry) \
: "memory" ); \
(type)__res; \
})
#define _hypercall1(type, name, a1) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res, __ign1; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res), "=b" (__ign1) \
: "0" (__hentry), "1" ((long)(a1)) \
: "memory" ); \
(type)__res; \
})
#define _hypercall2(type, name, a1, a2) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res, __ign1, __ign2; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res), "=b" (__ign1), "=c" (__ign2) \
: "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)) \
: "memory" ); \
(type)__res; \
})
#define _hypercall3(type, name, a1, a2, a3) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res, __ign1, __ign2, __ign3; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
"=d" (__ign3) \
: "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)), \
"3" ((long)(a3)) \
: "memory" ); \
(type)__res; \
})
#define _hypercall4(type, name, a1, a2, a3, a4) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res, __ign1, __ign2, __ign3, __ign4; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
"=d" (__ign3), "=S" (__ign4) \
: "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)), \
"3" ((long)(a3)), "4" ((long)(a4)) \
: "memory" ); \
(type)__res; \
})
#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
({ \
unsigned long __hentry = xen_hypercall_page+__HYPERVISOR_##name*32; \
long __res, __ign1, __ign2, __ign3, __ign4, __ign5; \
asm volatile ( \
"call *%%eax" \
: "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
"=d" (__ign3), "=S" (__ign4), "=D" (__ign5) \
: "0" (__hentry), "1" ((long)(a1)), "2" ((long)(a2)), \
"3" ((long)(a3)), "4" ((long)(a4)), \
"5" ((long)(a5)) \
: "memory" ); \
(type)__res; \
})
/******************************************************************************
*
* The following interface definitions are taken from Xen and have the
* following license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/* xen.h */
#define __HYPERVISOR_xen_version 17
/* version.h */
/* arg == xen_extraversion_t. */
#define XENVER_extraversion 1
typedef char xen_extraversion_t[16];
#define XEN_EXTRAVERSION_LEN (sizeof(xen_extraversion_t))
#endif