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ed50bd60 IY |
1 | /* |
2 | * Support routines for Xen hypercalls | |
3 | * | |
4 | * Copyright (C) 2005 Dan Magenheimer <dan.magenheimer@hp.com> | |
5 | * Copyright (C) 2008 Yaozu (Eddie) Dong <eddie.dong@intel.com> | |
6 | */ | |
7 | ||
8 | #include <asm/asmmacro.h> | |
9 | #include <asm/intrinsics.h> | |
10 | #include <asm/xen/privop.h> | |
11 | ||
0a7d3244 | 12 | #ifdef __INTEL_COMPILER |
ed50bd60 IY |
13 | /* |
14 | * Hypercalls without parameter. | |
15 | */ | |
16 | #define __HCALL0(name,hcall) \ | |
17 | GLOBAL_ENTRY(name); \ | |
18 | break hcall; \ | |
19 | br.ret.sptk.many rp; \ | |
20 | END(name) | |
21 | ||
22 | /* | |
23 | * Hypercalls with 1 parameter. | |
24 | */ | |
25 | #define __HCALL1(name,hcall) \ | |
26 | GLOBAL_ENTRY(name); \ | |
27 | mov r8=r32; \ | |
28 | break hcall; \ | |
29 | br.ret.sptk.many rp; \ | |
30 | END(name) | |
31 | ||
32 | /* | |
33 | * Hypercalls with 2 parameters. | |
34 | */ | |
35 | #define __HCALL2(name,hcall) \ | |
36 | GLOBAL_ENTRY(name); \ | |
37 | mov r8=r32; \ | |
38 | mov r9=r33; \ | |
39 | break hcall; \ | |
40 | br.ret.sptk.many rp; \ | |
41 | END(name) | |
42 | ||
43 | __HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR) | |
44 | __HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR) | |
45 | __HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR) | |
46 | __HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I) | |
47 | ||
48 | __HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR) | |
49 | __HCALL1(xen_eoi, HYPERPRIVOP_EOI) | |
50 | __HCALL1(xen_thash, HYPERPRIVOP_THASH) | |
51 | __HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM) | |
52 | __HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR) | |
53 | __HCALL1(xen_fc, HYPERPRIVOP_FC) | |
54 | __HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID) | |
55 | __HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD) | |
56 | ||
57 | __HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA) | |
58 | __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR) | |
59 | __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR) | |
60 | ||
ed50bd60 IY |
61 | GLOBAL_ENTRY(xen_set_rr0_to_rr4) |
62 | mov r8=r32 | |
63 | mov r9=r33 | |
64 | mov r10=r34 | |
65 | mov r11=r35 | |
66 | mov r14=r36 | |
67 | XEN_HYPER_SET_RR0_TO_RR4 | |
68 | br.ret.sptk.many rp | |
69 | ;; | |
70 | END(xen_set_rr0_to_rr4) | |
0a7d3244 | 71 | #endif |
ed50bd60 IY |
72 | |
73 | GLOBAL_ENTRY(xen_send_ipi) | |
74 | mov r14=r32 | |
75 | mov r15=r33 | |
76 | mov r2=0x400 | |
77 | break 0x1000 | |
78 | ;; | |
79 | br.ret.sptk.many rp | |
80 | ;; | |
81 | END(xen_send_ipi) | |
82 | ||
83 | GLOBAL_ENTRY(__hypercall) | |
84 | mov r2=r37 | |
85 | break 0x1000 | |
86 | br.ret.sptk.many b0 | |
87 | ;; | |
88 | END(__hypercall) |