Exit traces are a lot easier to read when you don't have to remember
cryptic numbers for guest exit reasons. Symbolify them in our trace
output.
Signed-off-by: Alexander Graf <agraf@xxxxxxx>
---
arch/powerpc/kvm/trace.h | 58 ++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 56 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index cb2780a..4073fdc 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -31,6 +31,60 @@ TRACE_EVENT(kvm_ppc_instr,
__entry->inst, __entry->pc, __entry->emulate)
);
+#ifdef CONFIG_KVM_BOOK3S_PR
+#define kvm_trace_symbol_exit \
+ {0x100, "SYSTEM_RESET"}, \
+ {0x200, "MACHINE_CHECK"}, \
+ {0x300, "DATA_STORAGE"}, \
+ {0x380, "DATA_SEGMENT"}, \
+ {0x400, "INST_STORAGE"}, \
+ {0x480, "INST_SEGMENT"}, \
+ {0x500, "EXTERNAL"}, \
+ {0x501, "EXTERNAL_LEVEL"}, \
+ {0x502, "EXTERNAL_HV"}, \
+ {0x600, "ALIGNMENT"}, \
+ {0x700, "PROGRAM"}, \
+ {0x800, "FP_UNAVAIL"}, \
+ {0x900, "DECREMENTER"}, \
+ {0x980, "HV_DECREMENTER"}, \
+ {0xc00, "SYSCALL"}, \
+ {0xd00, "TRACE"}, \
+ {0xe00, "H_DATA_STORAGE"}, \
+ {0xe20, "H_INST_STORAGE"}, \
+ {0xe40, "H_EMUL_ASSIST"}, \
+ {0xf00, "PERFMON"}, \
+ {0xf20, "ALTIVEC"}, \
+ {0xf40, "VSX"}
+#else
+#define kvm_trace_symbol_exit \
+ {0, "CRITICAL"}, \
+ {1, "MACHINE_CHECK"}, \
+ {2, "DATA_STORAGE"}, \
+ {3, "INST_STORAGE"}, \
+ {4, "EXTERNAL"}, \
+ {5, "ALIGNMENT"}, \
+ {6, "PROGRAM"}, \
+ {7, "FP_UNAVAIL"}, \
+ {8, "SYSCALL"}, \
+ {9, "AP_UNAVAIL"}, \
+ {10, "DECREMENTER"}, \
+ {11, "FIT"}, \
+ {12, "WATCHDOG"}, \
+ {13, "DTLB_MISS"}, \
+ {14, "ITLB_MISS"}, \
+ {15, "DEBUG"}, \
+ {32, "SPE_UNAVAIL"}, \
+ {33, "SPE_FP_DATA"}, \
+ {34, "SPE_FP_ROUND"}, \
+ {35, "PERFORMANCE_MONITOR"}, \
+ {36, "DOORBELL"}, \
+ {37, "DOORBELL_CRITICAL"}, \
+ {38, "GUEST_DBELL"}, \
+ {39, "GUEST_DBELL_CRIT"}, \
+ {40, "HV_SYSCALL"}, \
+ {41, "HV_PRIV"}
+#endif
+
TRACE_EVENT(kvm_exit,
TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
TP_ARGS(exit_nr, vcpu),
@@ -62,7 +116,7 @@ TRACE_EVENT(kvm_exit,
__entry->last_inst = vcpu->arch.last_inst;
),
- TP_printk("exit=0x%x"
+ TP_printk("exit=%s"
" | pc=0x%lx"
" | msr=0x%lx"
" | dar=0x%lx"
@@ -71,7 +125,7 @@ TRACE_EVENT(kvm_exit,
#endif
" | last_inst=0x%lx"
,
- __entry->exit_nr,
+ __print_symbolic(__entry->exit_nr, kvm_trace_symbol_exit),
__entry->pc,
__entry->msr,
__entry->dar,
--
1.6.0.2
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