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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 06:40:54 +07:00
32974ad490
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>
89 lines
1.8 KiB
ArmAsm
89 lines
1.8 KiB
ArmAsm
/*
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* Support routines for Xen hypercalls
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*
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* Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com>
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* Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com>
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*/
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#include <asm/asmmacro.h>
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#include <asm/intrinsics.h>
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#include <asm/xen/privop.h>
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#ifdef __INTEL_COMPILER
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/*
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* Hypercalls without parameter.
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*/
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#define __HCALL0(name,hcall) \
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GLOBAL_ENTRY(name); \
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break hcall; \
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br.ret.sptk.many rp; \
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END(name)
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/*
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* Hypercalls with 1 parameter.
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*/
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#define __HCALL1(name,hcall) \
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GLOBAL_ENTRY(name); \
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mov r8=r32; \
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break hcall; \
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br.ret.sptk.many rp; \
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END(name)
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/*
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* Hypercalls with 2 parameters.
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*/
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#define __HCALL2(name,hcall) \
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GLOBAL_ENTRY(name); \
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mov r8=r32; \
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mov r9=r33; \
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break hcall; \
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br.ret.sptk.many rp; \
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END(name)
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__HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR)
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__HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR)
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__HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR)
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__HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I)
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__HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR)
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__HCALL1(xen_eoi, HYPERPRIVOP_EOI)
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__HCALL1(xen_thash, HYPERPRIVOP_THASH)
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__HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM)
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__HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR)
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__HCALL1(xen_fc, HYPERPRIVOP_FC)
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__HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID)
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__HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD)
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__HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA)
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__HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
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__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
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GLOBAL_ENTRY(xen_set_rr0_to_rr4)
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mov r8=r32
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mov r9=r33
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mov r10=r34
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mov r11=r35
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mov r14=r36
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XEN_HYPER_SET_RR0_TO_RR4
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br.ret.sptk.many rp
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;;
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END(xen_set_rr0_to_rr4)
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#endif
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GLOBAL_ENTRY(xen_send_ipi)
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mov r14=r32
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mov r15=r33
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mov r2=0x400
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break 0x1000
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;;
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br.ret.sptk.many rp
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;;
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END(xen_send_ipi)
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GLOBAL_ENTRY(__hypercall)
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mov r2=r37
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break 0x1000
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br.ret.sptk.many b0
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;;
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END(__hypercall)
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