Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


Merge branch 'devel' of newskysaw.cs.northwestern.edu:/home/palacios/palacios into...
Peter Dinda [Wed, 16 Nov 2011 17:10:50 +0000 (11:10 -0600)]
linux_module/iface-file.c
palacios/include/palacios/vmm_telemetry.h
palacios/src/devices/ne2k.c
palacios/src/devices/rtl8139.c
palacios/src/palacios/vmm_telemetry.c
palacios/src/palacios/vmx_msr.c

index 5489764..1df1d6d 100644 (file)
@@ -128,7 +128,7 @@ static int palacios_file_mkdir(const char * pathname, unsigned short perms, int
        struct nameidata nd;
 
        // I'm not 100% sure about the version here, but it was around this time that the API changed
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35) 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,37) 
        ret = kern_path_parent(pathname, &nd);
 #else 
 
index 2fb5bc2..a9fd4b7 100644 (file)
@@ -59,8 +59,9 @@ void v3_deinit_core_telemetry(struct guest_info * core);
 void v3_telemetry_start_exit(struct guest_info * info);
 void v3_telemetry_end_exit(struct guest_info * info, uint_t exit_code);
 
+void v3_print_core_telemetry(struct guest_info * core);
 void v3_print_global_telemetry(struct v3_vm_info * vm);
-void v3_print_core_telemetry(struct guest_info * vm);
+void v3_print_telemetry(struct v3_vm_info * vm, struct guest_info * core);
 
 
 void v3_add_telemetry_cb(struct v3_vm_info * vm, 
index d4e8852..b4796f7 100644 (file)
@@ -1115,7 +1115,7 @@ static int register_dev(struct ne2k_state * nic_state)
        }
 
        bars[0].type = PCI_BAR_IO;
-       bars[0].default_base_port = NIC_REG_BASE_PORT;
+       bars[0].default_base_port = -1;
        bars[0].num_ports = 256;
 
        bars[0].io_read = ne2k_pci_read;
index 176d053..33a5cfa 100644 (file)
@@ -1713,7 +1713,7 @@ static int register_dev(struct rtl8139_state * nic_state)  {
     }
 
     bars[0].type = PCI_BAR_IO;
-    bars[0].default_base_port = 0xc100;
+    bars[0].default_base_port = -1;
     bars[0].num_ports = 0x100;
 
     bars[0].io_read = rtl8139_ioport_read;
index 4ddea67..d12a5a7 100644 (file)
@@ -204,8 +204,7 @@ void v3_telemetry_end_exit(struct guest_info * info, uint_t exit_code) {
 
     // check if the exit count has expired
     if ((telemetry->exit_cnt % telemetry->vm_telem->granularity) == 0) {
-       v3_print_global_telemetry(info->vm_info);
-       v3_print_core_telemetry(info);
+       v3_print_telemetry(info->vm_info, info);
     }
 }
 
@@ -234,10 +233,31 @@ static int free_callback(struct v3_vm_info * vm, struct telemetry_cb * cb) {
 }
 
 
-void v3_print_core_telemetry(struct guest_info * core ) {
+static void telemetry_header(struct v3_vm_info *vm, char *hdr_buf, int len)
+{
+    struct v3_telemetry_state * telemetry = &(vm->telemetry);
+    snprintf(hdr_buf, len, "telem.%d>", telemetry->invoke_cnt);
+}
+
+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));
+    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);
+}
+
+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);
     
     if (!node) { 
@@ -249,8 +269,8 @@ void v3_print_core_telemetry(struct guest_info * core ) {
         evt = rb_entry(node, struct exit_event, tree_node);
         const char * code_str = vmexit_code_to_str(evt->exit_code);
            
-        V3_Print("%s:%sCnt=%u,%sAvg. Time=%u\n", 
-                 code_str,
+        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",
@@ -259,17 +279,24 @@ void v3_print_core_telemetry(struct guest_info * core ) {
     return;
 }
 
-void v3_print_global_telemetry(struct v3_vm_info * vm) {
+void v3_print_core_telemetry(struct guest_info * core ) {
+    struct v3_vm_info *vm = core->vm_info;
     struct v3_telemetry_state * telemetry = &(vm->telemetry);
-    uint64_t invoke_tsc = 0;
     char hdr_buf[32];
+    
+    telemetry_header(vm, hdr_buf, 32);
+    telemetry->invoke_cnt++; // XXX this increment isn't atomic and probably should be
 
-    rdtscll(invoke_tsc);
-
-    snprintf(hdr_buf, 32, "telem.%d>", telemetry->invoke_cnt++);
+    print_telemetry_start(vm, hdr_buf);
+    print_core_telemetry(core, hdr_buf);
+    print_telemetry_end(vm, hdr_buf);
 
-    V3_Print("%stelemetry window tsc cnt: %d\n", hdr_buf, (uint32_t)(invoke_tsc - telemetry->prev_tsc));
+    return;
+}
 
+static void telemetry_callbacks(struct v3_vm_info * vm, char *hdr_buf)
+{
+    struct v3_telemetry_state * telemetry = &(vm->telemetry);
     // Registered callbacks
     {
        struct telemetry_cb * cb = NULL;
@@ -278,8 +305,32 @@ void v3_print_global_telemetry(struct v3_vm_info * vm) {
            cb->telemetry_fn(vm, cb->private_data, hdr_buf);
        }
     }
+}
 
-    telemetry->prev_tsc = invoke_tsc;
+void v3_print_global_telemetry(struct v3_vm_info * vm) {
+    struct v3_telemetry_state * telemetry = &(vm->telemetry);
+    char hdr_buf[32];
 
-    V3_Print("%s Telemetry done\n", hdr_buf);
+    telemetry_header(vm, hdr_buf, 32);
+    telemetry->invoke_cnt++; // XXX this increment isn't atomic and probably should be
+
+    print_telemetry_start( vm, hdr_buf );
+    telemetry_callbacks( vm, hdr_buf );
+    print_telemetry_end( vm, hdr_buf );
+}
+
+void v3_print_telemetry(struct v3_vm_info * vm, struct guest_info * core )
+{
+    struct v3_telemetry_state * telemetry = &(vm->telemetry);
+    char hdr_buf[32];
+    
+    telemetry_header(vm, hdr_buf, 32);
+    telemetry->invoke_cnt++; // XXX this increment isn't atomic and probably should be
+
+    print_telemetry_start(vm, hdr_buf);
+    print_core_telemetry(core, hdr_buf);
+    telemetry_callbacks(vm, hdr_buf);
+    print_telemetry_end(vm, hdr_buf);
+
+    return;
 }
index f470c37..ae64331 100644 (file)
@@ -51,6 +51,12 @@ static int update_map(struct v3_vm_info * vm, uint_t msr, int hook_reads, int ho
     uint8_t write_val = (hook_writes) ? 0x1 : 0x0;
     uint8_t * bitmap = (uint8_t *)(vm->msr_map.arch_data);
 
+    if (index == -1) {
+       //      0rintError("Error updating MSR Map failed bitmap index for (0x%x)\n", msr);
+       // MSRs not in the bitmap covered range will always trigger exits, so we don't need to worry about them here.
+       return 0;
+    }
+
     *(bitmap + major) &= ~(mask << minor);
     *(bitmap + major) |= (read_val << minor);