HVM-77 add vmregs[] variable to DTrace

1 files changed, 64 insertions, 0 deletions

diff --git a/tools/kvm-triple.d b/tools/kvm-triple.d
new file mode 100755
index 0000000..9dbfd28
--- /dev/null
+++ b/tools/kvm-triple.d
@@ -0,0 +1,64 @@
+#!/usr/sbin/dtrace -C
+
+/*
+ * Prints out the last several vmexits after a triple fault.  Must be run
+ * with exitno.d.
+ */
+
+#pragma D option quiet
+#pragma D option bufpolicy=ring
+#pragma D option bufsize=16k
+
+BEGIN
+{
+	start = timestamp;
+}
+
+kvm-vexit
+{
+	printf("t+%-14d cpu: %-3d  %-40s vpid: %-5d\n",
+	    timestamp - start, cpu, strexitno[arg1],
+	    vmregs[VMX_VIRTUAL_PROCESSOR_ID]);
+	printf("   rip: %16x   rsp: %16x   rfl: %16x\n",
+	    vmregs[VMX_GUEST_RIP], vmregs[VMX_GUEST_RSP],
+	    vmregs[VMX_GUEST_RFLAGS]);
+	printf("   cr0: %16x   cr3: %16x   cr4: %16x\n",
+	    vmregs[VMX_GUEST_CR0], vmregs[VMX_GUEST_CR3],
+	    vmregs[VMX_GUEST_CR4]);
+	printf("   ldt: %16x   gdt: %16x   idt: %16x\n",
+	    vmregs[VMX_GUEST_LDTR_BASE], vmregs[VMX_GUEST_GDTR_BASE],
+	    vmregs[VMX_GUEST_IDTR_BASE]);
+	printf("    cs:           base=%x limit=%x selector=%x access=%x\n",
+	    vmregs[VMX_GUEST_CS_BASE],
+	    vmregs[VMX_GUEST_CS_LIMIT],
+	    vmregs[VMX_GUEST_CS_SELECTOR],
+	    vmregs[VMX_GUEST_CS_AR_BYTES]);
+	printf("    ds:           base=%x limit=%x selector=%x access=%x\n",
+	    vmregs[VMX_GUEST_DS_BASE],
+	    vmregs[VMX_GUEST_DS_LIMIT],
+	    vmregs[VMX_GUEST_DS_SELECTOR],
+	    vmregs[VMX_GUEST_DS_AR_BYTES]);
+	printf("    es:           base=%x limit=%x selector=%x access=%x\n",
+	    vmregs[VMX_GUEST_ES_BASE],
+	    vmregs[VMX_GUEST_ES_LIMIT],
+	    vmregs[VMX_GUEST_ES_SELECTOR],
+	    vmregs[VMX_GUEST_ES_AR_BYTES]);
+	printf("    fs:           base=%x limit=%x selector=%x access=%x\n",
+	    vmregs[VMX_GUEST_FS_BASE],
+	    vmregs[VMX_GUEST_FS_LIMIT],
+	    vmregs[VMX_GUEST_FS_SELECTOR],
+	    vmregs[VMX_GUEST_FS_AR_BYTES]);
+	printf("    ss:           base=%x limit=%x selector=%x access=%x\n",
+	    vmregs[VMX_GUEST_SS_BASE],
+	    vmregs[VMX_GUEST_SS_LIMIT],
+	    vmregs[VMX_GUEST_SS_SELECTOR],
+	    vmregs[VMX_GUEST_SS_AR_BYTES]);
+	printf("\n");
+}
+
+kvm-vexit
+/arg1 == EXIT_REASON_TRIPLE_FAULT/
+{
+	exit(0);
+}
+