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Sanjay Lal
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Ralf Baechle
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May 8, 2013
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refs/heads/master: 03a0331c8c715c73d877aba8c542a60b13f70ed0 | ||
refs/heads/master: 3c20ef526253da02348ec45768d5a90813577d88 |
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/* | ||
* This file is subject to the terms and conditions of the GNU General Public | ||
* License. See the file "COPYING" in the main directory of this archive | ||
* for more details. | ||
* | ||
* KVM/MIPS: COP0 access histogram | ||
* | ||
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. | ||
* Authors: Sanjay Lal <sanjayl@kymasys.com> | ||
*/ | ||
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#include <linux/kvm_host.h> | ||
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char *kvm_mips_exit_types_str[MAX_KVM_MIPS_EXIT_TYPES] = { | ||
"WAIT", | ||
"CACHE", | ||
"Signal", | ||
"Interrupt", | ||
"COP0/1 Unusable", | ||
"TLB Mod", | ||
"TLB Miss (LD)", | ||
"TLB Miss (ST)", | ||
"Address Err (ST)", | ||
"Address Error (LD)", | ||
"System Call", | ||
"Reserved Inst", | ||
"Break Inst", | ||
"D-Cache Flushes", | ||
}; | ||
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char *kvm_cop0_str[N_MIPS_COPROC_REGS] = { | ||
"Index", | ||
"Random", | ||
"EntryLo0", | ||
"EntryLo1", | ||
"Context", | ||
"PG Mask", | ||
"Wired", | ||
"HWREna", | ||
"BadVAddr", | ||
"Count", | ||
"EntryHI", | ||
"Compare", | ||
"Status", | ||
"Cause", | ||
"EXC PC", | ||
"PRID", | ||
"Config", | ||
"LLAddr", | ||
"Watch Lo", | ||
"Watch Hi", | ||
"X Context", | ||
"Reserved", | ||
"Impl Dep", | ||
"Debug", | ||
"DEPC", | ||
"PerfCnt", | ||
"ErrCtl", | ||
"CacheErr", | ||
"TagLo", | ||
"TagHi", | ||
"ErrorEPC", | ||
"DESAVE" | ||
}; | ||
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int kvm_mips_dump_stats(struct kvm_vcpu *vcpu) | ||
{ | ||
#ifdef CONFIG_KVM_MIPS_DEBUG_COP0_COUNTERS | ||
int i, j; | ||
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printk("\nKVM VCPU[%d] COP0 Access Profile:\n", vcpu->vcpu_id); | ||
for (i = 0; i < N_MIPS_COPROC_REGS; i++) { | ||
for (j = 0; j < N_MIPS_COPROC_SEL; j++) { | ||
if (vcpu->arch.cop0->stat[i][j]) | ||
printk("%s[%d]: %lu\n", kvm_cop0_str[i], j, | ||
vcpu->arch.cop0->stat[i][j]); | ||
} | ||
} | ||
#endif | ||
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return 0; | ||
} |