Expose HVM state to host + Linux host /proc additions for it

[palacios.git] / palacios / src / palacios / vmm_telemetry.c

diff --git a/palacios/src/palacios/vmm_telemetry.c b/palacios/src/palacios/vmm_telemetry.c
index d12a5a7..988090f 100644 (file)
--- a/palacios/src/palacios/vmm_telemetry.c
+++ b/palacios/src/palacios/vmm_telemetry.c
@@ -20,10 +20,12 @@
 #include <palacios/vmm_types.h>
 #include <palacios/vmm_telemetry.h>
 #include <palacios/svm_handler.h>
+#include <palacios/vmx_handler.h>
 #include <palacios/vmm_rbtree.h>
 #include <palacios/vmm_sprintf.h>
 
 
+
 #ifdef V3_CONFIG_TELEMETRY_GRANULARITY
 #define DEFAULT_GRANULARITY V3_CONFIG_TELEMETRY_GRANULARITY
 #else 
@@ -160,6 +162,11 @@ static struct exit_event * get_exit(struct guest_info * info, uint_t exit_code)
 static inline struct exit_event * create_exit(uint_t exit_code) {
     struct exit_event * evt = V3_Malloc(sizeof(struct exit_event));
 
+    if (!evt) {
+       PrintError(VM_NONE, VCORE_NONE, "Cannot allocate in createing exit in telemetry\n");
+       return NULL;
+    }
+
     evt->exit_code = exit_code;
     evt->cnt = 0;
     evt->handler_time = 0;
@@ -217,6 +224,11 @@ void v3_add_telemetry_cb(struct v3_vm_info * vm,
     struct v3_telemetry_state * telemetry = &(vm->telemetry);
     struct telemetry_cb * cb = (struct telemetry_cb *)V3_Malloc(sizeof(struct telemetry_cb));
 
+    if (!cb) {
+        PrintError(vm, VCORE_NONE, "Cannot allocate in adding a telemtry callback\n");
+       return ;
+    }
+
     cb->private_data = private_data;
     cb->telemetry_fn = telemetry_fn;
 
@@ -244,13 +256,13 @@ static void print_telemetry_start(struct v3_vm_info *vm, char *hdr_buf)
     struct v3_telemetry_state * telemetry = &(vm->telemetry);
     uint64_t invoke_tsc = 0;
     rdtscll(invoke_tsc);
-    V3_Print("%stelemetry window tsc cnt: %d\n", hdr_buf, (uint32_t)(invoke_tsc - telemetry->prev_tsc));
+    V3_Print(vm,  VCORE_NONE, "%stelemetry window tsc cnt: %u\n", hdr_buf, (uint32_t)(invoke_tsc - telemetry->prev_tsc));
     telemetry->prev_tsc = invoke_tsc;
 }
 
 static void print_telemetry_end(struct v3_vm_info *vm, char *hdr_buf)
 {
-    V3_Print("%s Telemetry done\n", hdr_buf);
+    V3_Print(vm, VCORE_NONE, "%s Telemetry done\n", hdr_buf);
 }
 
 static void print_core_telemetry(struct guest_info * core, char *hdr_buf)
@@ -258,23 +270,41 @@ static void print_core_telemetry(struct guest_info * core, char *hdr_buf)
     struct exit_event * evt = NULL;
     struct rb_node * node = v3_rb_first(&(core->core_telem.exit_root));
 
-    V3_Print("Exit information for Core %d\n", core->vcpu_id);
+    V3_Print(core->vm_info, core, "Exit information for Core %d\n", core->vcpu_id);
     
     if (!node) { 
-       V3_Print("No information yet for this core\n");
+       V3_Print(core->vm_info, core, "No information yet for this core\n");
        return;
     }
 
     do {
-        evt = rb_entry(node, struct exit_event, tree_node);
-        const char * code_str = vmexit_code_to_str(evt->exit_code);
-           
-        V3_Print("%s%s:%sCnt=%u,%sAvg. Time=%u\n", 
-                 hdr_buf, code_str,
-                 (strlen(code_str) > 13) ? "\t" : "\t\t",
-                 evt->cnt,
-                 (evt->cnt >= 100) ? "\t" : "\t\t",
-                 (uint32_t)(evt->handler_time / evt->cnt));
+       extern v3_cpu_arch_t v3_mach_type;
+       const char * code_str = NULL;
+       
+       evt = rb_entry(node, struct exit_event, tree_node);
+
+       switch (v3_mach_type) {
+           case V3_SVM_CPU:
+           case V3_SVM_REV3_CPU:
+               
+               code_str = v3_svm_exit_code_to_str(evt->exit_code);
+               break;
+           case V3_VMX_CPU:
+           case V3_VMX_EPT_CPU:
+           case V3_VMX_EPT_UG_CPU:
+               code_str = v3_vmx_exit_code_to_str(evt->exit_code);
+               break;
+
+           default:
+               continue;
+       }
+
+       V3_Print(core->vm_info, core, "%s%s:%sCnt=%u,%sAvg. Time=%u\n", 
+                hdr_buf, code_str,
+                (strlen(code_str) > 13) ? "\t" : "\t\t",
+                evt->cnt,
+                (evt->cnt >= 100) ? "\t" : "\t\t",
+                (uint32_t)(evt->handler_time / evt->cnt));
     } while ((node = v3_rb_next(node)));
     return;
 }