linux/arch/ia64/xen/hypercall.S
Tony Luck 32974ad490 [IA64] Remove COMPAT_IA32 support
This has been broken since May 2008 when Al Viro killed altroot support.
Since nobody has complained, it would appear that there are no users of
this code (A plausible theory since the main OSVs that support ia64 prefer
to use the IA32-EL software emulation).

Signed-off-by: Tony Luck <tony.luck@intel.com>
2010-02-08 10:42:17 -08:00

88 lines
1.8 KiB
ArmAsm

/*
* Support routines for Xen hypercalls
*
* Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com>
* Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com>
*/
#include <asm/asmmacro.h>
#include <asm/intrinsics.h>
#include <asm/xen/privop.h>
#ifdef __INTEL_COMPILER
/*
* Hypercalls without parameter.
*/
#define __HCALL0(name,hcall) \
GLOBAL_ENTRY(name); \
break hcall; \
br.ret.sptk.many rp; \
END(name)
/*
* Hypercalls with 1 parameter.
*/
#define __HCALL1(name,hcall) \
GLOBAL_ENTRY(name); \
mov r8=r32; \
break hcall; \
br.ret.sptk.many rp; \
END(name)
/*
* Hypercalls with 2 parameters.
*/
#define __HCALL2(name,hcall) \
GLOBAL_ENTRY(name); \
mov r8=r32; \
mov r9=r33; \
break hcall; \
br.ret.sptk.many rp; \
END(name)
__HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR)
__HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR)
__HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR)
__HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I)
__HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR)
__HCALL1(xen_eoi, HYPERPRIVOP_EOI)
__HCALL1(xen_thash, HYPERPRIVOP_THASH)
__HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM)
__HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR)
__HCALL1(xen_fc, HYPERPRIVOP_FC)
__HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID)
__HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD)
__HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
__HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
GLOBAL_ENTRY(xen_set_rr0_to_rr4)
mov r8=r32
mov r9=r33
mov r10=r34
mov r11=r35
mov r14=r36
XEN_HYPER_SET_RR0_TO_RR4
br.ret.sptk.many rp
;;
END(xen_set_rr0_to_rr4)
#endif
GLOBAL_ENTRY(xen_send_ipi)
mov r14=r32
mov r15=r33
mov r2=0x400
break 0x1000
;;
br.ret.sptk.many rp
;;
END(xen_send_ipi)
GLOBAL_ENTRY(__hypercall)
mov r2=r37
break 0x1000
br.ret.sptk.many b0
;;
END(__hypercall)