kvm: Parse svm exit reason

svm exit reasons use different code than vmx; use the new "isa" trace field
to select the instruction set and display the strings accordingly.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 107 insertions, 7 deletions

diff --git a/plugin_kvm.c b/plugin_kvm.c
index 724143d..c8e8b8c 100644
--- a/plugin_kvm.c
+++ b/plugin_kvm.c
@@ -120,6 +120,80 @@ static const char *disassemble(unsigned char *insn, int len, uint64_t rip,
         _ER(EPT_MISCONFIG,      49)             \
         _ER(WBINVD,             54)
 
+#define SVM_EXIT_REASONS \
+        _ER(EXIT_READ_CR0,      0x000)          \
+        _ER(EXIT_READ_CR3,      0x003)          \
+        _ER(EXIT_READ_CR4,      0x004)          \
+        _ER(EXIT_READ_CR8,      0x008)          \
+        _ER(EXIT_WRITE_CR0,     0x010)          \
+        _ER(EXIT_WRITE_CR3,     0x013)          \
+        _ER(EXIT_WRITE_CR4,     0x014)          \
+        _ER(EXIT_WRITE_CR8,     0x018)          \
+        _ER(EXIT_READ_DR0,      0x020)          \
+        _ER(EXIT_READ_DR1,      0x021)          \
+        _ER(EXIT_READ_DR2,      0x022)          \
+        _ER(EXIT_READ_DR3,      0x023)          \
+        _ER(EXIT_READ_DR4,      0x024)          \
+        _ER(EXIT_READ_DR5,      0x025)          \
+        _ER(EXIT_READ_DR6,      0x026)          \
+        _ER(EXIT_READ_DR7,      0x027)          \
+        _ER(EXIT_WRITE_DR0,     0x030)          \
+        _ER(EXIT_WRITE_DR1,     0x031)          \
+        _ER(EXIT_WRITE_DR2,     0x032)          \
+        _ER(EXIT_WRITE_DR3,     0x033)          \
+        _ER(EXIT_WRITE_DR4,     0x034)          \
+        _ER(EXIT_WRITE_DR5,     0x035)          \
+        _ER(EXIT_WRITE_DR6,     0x036)          \
+        _ER(EXIT_WRITE_DR7,     0x037)          \
+        _ER(EXIT_EXCP_BASE,     0x040)          \
+        _ER(EXIT_INTR,          0x060)          \
+        _ER(EXIT_NMI,           0x061)          \
+        _ER(EXIT_SMI,           0x062)          \
+        _ER(EXIT_INIT,          0x063)          \
+        _ER(EXIT_VINTR,         0x064)          \
+        _ER(EXIT_CR0_SEL_WRITE, 0x065)          \
+        _ER(EXIT_IDTR_READ,     0x066)          \
+        _ER(EXIT_GDTR_READ,     0x067)          \
+        _ER(EXIT_LDTR_READ,     0x068)          \
+        _ER(EXIT_TR_READ,       0x069)          \
+        _ER(EXIT_IDTR_WRITE,    0x06a)          \
+        _ER(EXIT_GDTR_WRITE,    0x06b)          \
+        _ER(EXIT_LDTR_WRITE,    0x06c)          \
+        _ER(EXIT_TR_WRITE,      0x06d)          \
+        _ER(EXIT_RDTSC,         0x06e)          \
+        _ER(EXIT_RDPMC,         0x06f)          \
+        _ER(EXIT_PUSHF,         0x070)          \
+        _ER(EXIT_POPF,          0x071)          \
+        _ER(EXIT_CPUID,         0x072)          \
+        _ER(EXIT_RSM,           0x073)          \
+        _ER(EXIT_IRET,          0x074)          \
+        _ER(EXIT_SWINT,         0x075)          \
+        _ER(EXIT_INVD,          0x076)          \
+        _ER(EXIT_PAUSE,         0x077)          \
+        _ER(EXIT_HLT,           0x078)          \
+        _ER(EXIT_INVLPG,        0x079)          \
+        _ER(EXIT_INVLPGA,       0x07a)          \
+        _ER(EXIT_IOIO,          0x07b)          \
+        _ER(EXIT_MSR,           0x07c)          \
+        _ER(EXIT_TASK_SWITCH,   0x07d)          \
+        _ER(EXIT_FERR_FREEZE,   0x07e)          \
+        _ER(EXIT_SHUTDOWN,      0x07f)          \
+        _ER(EXIT_VMRUN,         0x080)          \
+        _ER(EXIT_VMMCALL,       0x081)          \
+        _ER(EXIT_VMLOAD,        0x082)          \
+        _ER(EXIT_VMSAVE,        0x083)          \
+        _ER(EXIT_STGI,          0x084)          \
+        _ER(EXIT_CLGI,          0x085)          \
+        _ER(EXIT_SKINIT,        0x086)          \
+        _ER(EXIT_RDTSCP,        0x087)          \
+        _ER(EXIT_ICEBP,         0x088)          \
+        _ER(EXIT_WBINVD,        0x089)          \
+        _ER(EXIT_MONITOR,       0x08a)          \
+        _ER(EXIT_MWAIT,         0x08b)          \
+        _ER(EXIT_MWAIT_COND,    0x08c)          \
+        _ER(EXIT_NPF,           0x400)          \
+        _ER(EXIT_ERR,           -1)
+
 #define _ER(reason, val)        { #reason, val },
 struct str_values {
         const char      *str;
@@ -131,27 +205,53 @@ static struct str_values vmx_exit_reasons[] = {
         { NULL, -1}
 };
 
-static const char *find_vmx_reason(int val)
+static struct str_values svm_exit_reasons[] = {
+        SVM_EXIT_REASONS
+        { NULL, -1}
+};
+
+static struct isa_exit_reasons {
+        unsigned isa;
+        struct str_values *strings;
+} isa_exit_reasons[] = {
+        { .isa = 1, .strings = vmx_exit_reasons },
+        { .isa = 2, .strings = svm_exit_reasons },
+        { }
+};
+
+static const char *find_exit_reason(unsigned isa, int val)
 {
+        struct str_values *strings = NULL;
         int i;
 
-        for (i = 0; vmx_exit_reasons[i].val >= 0; i++)
-                if (vmx_exit_reasons[i].val == val)
+        for (i = 0; isa_exit_reasons[i].strings; ++i)
+                if (isa_exit_reasons[i].isa == isa) {
+                        strings = isa_exit_reasons[i].strings;
                         break;
-        if (vmx_exit_reasons[i].str)
-                return vmx_exit_reasons[i].str;
+                }
+        if (!strings)
+                return "UNKNOWN-ISA";
+        for (i = 0; strings[i].val >= 0; i++)
+                if (strings[i].val == val)
+                        break;
+        if (strings[i].str)
+                return strings[i].str;
         return "UNKOWN";
 }
 
 static int kvm_exit_handler(struct trace_seq *s, struct record *record,
                             struct event_format *event, void *context)
 {
+        unsigned long long isa;
         unsigned long long val;
 
         if (pevent_get_field_val(s, event, "exit_reason", record, &val, 1) < 0)
                 return -1;
 
-        trace_seq_printf(s, "reason %s", find_vmx_reason(val));
+        if (pevent_get_field_val(s, event, "isa", record, &isa, 1) < 0)
+                isa = 1;
+
+        trace_seq_printf(s, "reason %s", find_exit_reason(isa, val));
 
         pevent_print_num_field(s, " rip 0x%lx", event, "guest_rip", record, 1);
 
@@ -213,7 +313,7 @@ static int kvm_nested_vmexit_inject_handler(struct trace_seq *s, struct record *
         if (pevent_get_field_val(s, event, "exit_code", record, &val, 1) < 0)
                 return -1;
 
-        trace_seq_printf(s, "reason %s", find_vmx_reason(val));
+        trace_seq_printf(s, "reason %s", find_exit_reason(2, val));
 
         pevent_print_num_field(s, " ext_inf1: %0x016llx", event, "exit_info1", record, 1);
         pevent_print_num_field(s, " ext_inf2: %0x016llx", event, "exit_info2", record, 1);