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1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * KVM/MIPS: COP0 access histogram | |
7 | * | |
8 | * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. | |
9 | * Authors: Sanjay Lal <sanjayl@kymasys.com> | |
10 | */ | |
11 | ||
12 | #include <linux/kvm_host.h> | |
13 | ||
14 | char *kvm_mips_exit_types_str[MAX_KVM_MIPS_EXIT_TYPES] = { | |
15 | "WAIT", | |
16 | "CACHE", | |
17 | "Signal", | |
18 | "Interrupt", | |
19 | "COP0/1 Unusable", | |
20 | "TLB Mod", | |
21 | "TLB Miss (LD)", | |
22 | "TLB Miss (ST)", | |
23 | "Address Err (ST)", | |
24 | "Address Error (LD)", | |
25 | "System Call", | |
26 | "Reserved Inst", | |
27 | "Break Inst", | |
28 | "D-Cache Flushes", | |
29 | }; | |
30 | ||
31 | char *kvm_cop0_str[N_MIPS_COPROC_REGS] = { | |
32 | "Index", | |
33 | "Random", | |
34 | "EntryLo0", | |
35 | "EntryLo1", | |
36 | "Context", | |
37 | "PG Mask", | |
38 | "Wired", | |
39 | "HWREna", | |
40 | "BadVAddr", | |
41 | "Count", | |
42 | "EntryHI", | |
43 | "Compare", | |
44 | "Status", | |
45 | "Cause", | |
46 | "EXC PC", | |
47 | "PRID", | |
48 | "Config", | |
49 | "LLAddr", | |
50 | "Watch Lo", | |
51 | "Watch Hi", | |
52 | "X Context", | |
53 | "Reserved", | |
54 | "Impl Dep", | |
55 | "Debug", | |
56 | "DEPC", | |
57 | "PerfCnt", | |
58 | "ErrCtl", | |
59 | "CacheErr", | |
60 | "TagLo", | |
61 | "TagHi", | |
62 | "ErrorEPC", | |
63 | "DESAVE" | |
64 | }; | |
65 | ||
66 | int kvm_mips_dump_stats(struct kvm_vcpu *vcpu) | |
67 | { | |
68 | #ifdef CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS | |
69 | int i, j; | |
70 | ||
71 | printk("\nKVM VCPU[%d] COP0 Access Profile:\n", vcpu->vcpu_id); | |
72 | for (i = 0; i < N_MIPS_COPROC_REGS; i++) { | |
73 | for (j = 0; j < N_MIPS_COPROC_SEL; j++) { | |
74 | if (vcpu->arch.cop0->stat[i][j]) | |
75 | printk("%s[%d]: %lu\n", kvm_cop0_str[i], j, | |
76 | vcpu->arch.cop0->stat[i][j]); | |
77 | } | |
78 | } | |
79 | #endif | |
80 | ||
81 | return 0; | |
82 | } |