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.


updated host pci interface to support non-contiguous memory regions
[palacios.git] / linux_module / main.c
index 5c9ffa2..02c8ed8 100644 (file)
@@ -27,6 +27,8 @@
 #include "mm.h"
 #include "vm.h"
 #include "allow_devmem.h"
+#include "memcheck.h"
+#include "lockcheck.h"
 
 #include "linux-exts.h"
 
@@ -55,7 +57,7 @@ int mod_frees = 0;
 static int v3_major_num = 0;
 
 static struct v3_guest * guest_map[MAX_VMS] = {[0 ... MAX_VMS - 1] = 0};
-static struct proc_dir_entry *dir = 0;
+struct proc_dir_entry * palacios_proc_dir = NULL;
 
 struct class * v3_class = NULL;
 static struct cdev ctrl_dev;
@@ -113,7 +115,7 @@ static long v3_dev_ioctl(struct file * filp,
            guest->img_size = user_image.size;
 
            DEBUG("Palacios: Allocating kernel memory for guest image (%llu bytes)\n", user_image.size);
-           guest->img = vmalloc(guest->img_size);
+           guest->img = palacios_valloc(guest->img_size);
 
            if (IS_ERR(guest->img)) {
                ERROR("Palacios Error: Could not allocate space for guest image\n");
@@ -138,7 +140,7 @@ static long v3_dev_ioctl(struct file * filp,
 
 
 out_err2:
-            vfree(guest->img);
+            palacios_vfree(guest->img);
 out_err1:
             guest_map[vm_minor] = NULL; 
 out_err:
@@ -230,25 +232,43 @@ static struct file_operations v3_ctrl_fops = {
 
 struct proc_dir_entry *palacios_get_procdir(void) 
 {
-    return dir;
+    return palacios_proc_dir;
 }
 
 
-#define MAX_VCORES 32
+#define MAX_VCORES  256
+#define MAX_REGIONS 256
 
 static int read_guests(char * buf, char ** start, off_t off, int count,
                       int * eof, void * data)
 {
     int len = 0;
     unsigned int i = 0;
+    struct v3_vm_base_state *base=0;
+    struct v3_vm_core_state *core=0;
+    struct v3_vm_mem_state *mem=0;
 
-    struct v3_vm_state *s =palacios_alloc(sizeof(struct v3_vm_state)+MAX_VCORES*sizeof(struct v3_vcore_state));
+    base = palacios_alloc(sizeof(struct v3_vm_base_state));
     
-    if (!s) { 
-      ERROR("No space for state structure\n");
+    if (!base) { 
+      ERROR("No space for base state structure\n");
       goto out;
     }
+
+    core = palacios_alloc(sizeof(struct v3_vm_core_state) + MAX_VCORES*sizeof(struct v3_vm_vcore_state));
+    
+    if (!core) { 
+      ERROR("No space for core state structure\n");
+      goto out;
+    }
+
+    mem = palacios_alloc(sizeof(struct v3_vm_mem_state) + MAX_REGIONS*sizeof(struct v3_vm_mem_region));
     
+    if (!mem) { 
+      ERROR("No space for memory state structure\n");
+      goto out;
+    }
+
     for(i = 0; i < MAX_VMS; i++) {
       if (guest_map[i] != NULL) {
        if (len>=count) { 
@@ -263,8 +283,9 @@ static int read_guests(char * buf, char ** start, off_t off, int count,
            goto out;
          } else {
            // Get extended data
-           s->num_vcores=MAX_VCORES; // max we can handle
-           if (v3_get_state_vm(guest_map[i]->v3_ctx, s)) {
+           core->num_vcores=MAX_VCORES; // max we can handle
+           mem->num_regions=MAX_REGIONS; // max we can handle
+           if (v3_get_state_vm(guest_map[i]->v3_ctx, base, core, mem)) {
              ERROR("Cannot get VM info\n");
              *(buf+len-1)='\n';
              goto out;
@@ -272,45 +293,73 @@ static int read_guests(char * buf, char ** start, off_t off, int count,
              unsigned long j;
 
              len+=snprintf(buf+len, count-len,
-                           "%s [0x%p-0x%p] %lu vcores ",
-                           s->state==V3_VM_INVALID ? "INVALID" :
-                           s->state==V3_VM_RUNNING ? "running" :
-                           s->state==V3_VM_STOPPED ? "stopped" :
-                           s->state==V3_VM_PAUSED ? "paused" :
-                           s->state==V3_VM_ERROR ? "ERROR" :
-                           s->state==V3_VM_SIMULATING ? "simulating" : "UNKNOWN",
-                           s->mem_base_paddr, s->mem_base_paddr+s->mem_size-1,
-                           s->num_vcores);
+                           "%s %lu regions [ ", 
+                           base->state==V3_VM_INVALID ? "INVALID" :
+                           base->state==V3_VM_RUNNING ? "running" :
+                           base->state==V3_VM_STOPPED ? "stopped" :
+                           base->state==V3_VM_PAUSED ? "paused" :
+                           base->state==V3_VM_ERROR ? "ERROR" :
+                           base->state==V3_VM_SIMULATING ? "simulating" : "UNKNOWN",
+                           mem->num_regions);
+
+             if (len>=count) { 
+               *(buf+len-1)='\n';
+               goto out;
+             }
+
+             for (j=0;j<mem->num_regions;j++) { 
+                 len+=snprintf(buf+len, count-len,
+                               "(region %lu 0x%p-0x%p) ",
+                               j, mem->region[j].host_paddr, mem->region[j].host_paddr+mem->region[j].size);
+                 if (len>=count) { 
+                     *(buf+len-1)='\n';
+                     goto out;
+                 }
+             }
+                 
+             len+=snprintf(buf+len, count-len,
+                           "] %lu vcores [ ", 
+                           core->num_vcores);
+
              if (len>=count) { 
                *(buf+len-1)='\n';
                goto out;
              }
-             for (j=0;j<s->num_vcores;j++) {
+                 
+             for (j=0;j<core->num_vcores;j++) {
                len+=snprintf(buf+len, count-len,
-                             "[vcore %lu %s on pcore %lu %llu exits rip=0x%p %s %s %s] ",
+                             "(vcore %lu %s on pcore %lu %llu exits rip=0x%p %s %s %s) ",
                              j, 
-                             s->vcore[j].state==V3_VCORE_INVALID ? "INVALID" :
-                             s->vcore[j].state==V3_VCORE_RUNNING ? "running" :
-                             s->vcore[j].state==V3_VCORE_STOPPED ? "stopped" : "UNKNOWN",
-                             s->vcore[j].pcore,
-                             s->vcore[j].num_exits,
-                             s->vcore[j].last_rip,
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_REAL ? "real" :
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_PROTECTED ? "protected" :
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_PROTECTED_PAE ? "protectedpae" :
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_LONG ? "long" :
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_LONG_32_COMPAT ? "long32" :
-                             s->vcore[j].cpu_mode==V3_VCORE_CPU_LONG_16_COMPAT ? "long16" : "UNKNOWN",
-                             s->vcore[j].mem_mode==V3_VCORE_MEM_MODE_PHYSICAL ? "physical" :
-                             s->vcore[j].mem_mode==V3_VCORE_MEM_MODE_VIRTUAL ? "virtual" : "UNKNOWN",
-                             s->vcore[j].mem_state==V3_VCORE_MEM_STATE_SHADOW ? "shadow" :
-                             s->vcore[j].mem_state==V3_VCORE_MEM_STATE_NESTED ? "nested" : "UNKNOWN");
+                             core->vcore[j].state==V3_VCORE_INVALID ? "INVALID" :
+                             core->vcore[j].state==V3_VCORE_RUNNING ? "running" :
+                             core->vcore[j].state==V3_VCORE_STOPPED ? "stopped" : "UNKNOWN",
+                             core->vcore[j].pcore,
+                             core->vcore[j].num_exits,
+                             core->vcore[j].last_rip,
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_REAL ? "real" :
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_PROTECTED ? "protected" :
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_PROTECTED_PAE ? "protectedpae" :
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_LONG ? "long" :
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_LONG_32_COMPAT ? "long32" :
+                             core->vcore[j].cpu_mode==V3_VCORE_CPU_LONG_16_COMPAT ? "long16" : "UNKNOWN",
+                             core->vcore[j].mem_mode==V3_VCORE_MEM_MODE_PHYSICAL ? "physical" :
+                             core->vcore[j].mem_mode==V3_VCORE_MEM_MODE_VIRTUAL ? "virtual" : "UNKNOWN",
+                             core->vcore[j].mem_state==V3_VCORE_MEM_STATE_SHADOW ? "shadow" :
+                             core->vcore[j].mem_state==V3_VCORE_MEM_STATE_NESTED ? "nested" : "UNKNOWN");
                if (len>=count) {
-                 *(buf+len-1)='\n';
-                 goto out;
+                   *(buf+len-1)='\n';
+                   goto out;
                }
              }
 
+             len+=snprintf(buf+len, count-len,
+                           "] ");
+
+             if (len>=count) { 
+               *(buf+len-1)='\n';
+               goto out;
+             }
+                 
              *(buf+len-1)='\n';
 
            }
@@ -320,30 +369,24 @@ static int read_guests(char * buf, char ** start, off_t off, int count,
     }
  
  out:
-    if (s) { palacios_free(s); }
+    if (mem) { palacios_free(mem); }
+    if (core) { palacios_free(core); }
+    if (base) { palacios_free(base); }
 
     return len;
 }
 
-static int show_mem(char * buf, char ** start, off_t off, int count,
-                   int * eof, void * data)
-{
-    int len = 0;
-    
-    len = snprintf(buf,count, "%p\n", (void *)get_palacios_base_addr());
-    len += snprintf(buf+len,count-len, "%lld\n", get_palacios_num_pages());
-    
-    return len;
-}
-
 
 
 
 
 static int __init v3_init(void) {
+
     dev_t dev = MKDEV(0, 0); // We dynamicallly assign the major number
     int ret = 0;
 
+    LOCKCHECK_INIT();
+    MEMCHECK_INIT();
 
     palacios_init_mm();
 
@@ -392,11 +435,11 @@ static int __init v3_init(void) {
        goto failure1;
     }
 
-    dir = proc_mkdir("v3vee", NULL);
-    if(dir) {
+    palacios_proc_dir = proc_mkdir("v3vee", NULL);
+    if (palacios_proc_dir) {
        struct proc_dir_entry *entry;
 
-       entry = create_proc_read_entry("v3-guests", 0444, dir, 
+       entry = create_proc_read_entry("v3-guests", 0444, palacios_proc_dir, 
                                       read_guests, NULL);
         if (entry) {
            INFO("/proc/v3vee/v3-guests successfully created\n");
@@ -405,14 +448,6 @@ static int __init v3_init(void) {
            goto failure1;
        }
        
-       entry = create_proc_read_entry("v3-mem", 0444, dir,
-                                      show_mem, NULL);
-       if (entry) {
-           INFO("/proc/v3vee/v3-mem successfully added\n");
-       } else {
-           ERROR("Could not create proc entry\n");
-           goto failure1;
-       }
     } else {
        ERROR("Could not create proc entry\n");
        goto failure1;
@@ -434,6 +469,8 @@ static void __exit v3_exit(void) {
     extern u32 pg_frees;
     extern u32 mallocs;
     extern u32 frees;
+    extern u32 vmallocs;
+    extern u32 vfrees;
     int i = 0;
     struct v3_guest * guest;
     dev_t dev;
@@ -460,6 +497,7 @@ static void __exit v3_exit(void) {
     palacios_vmm_exit();
 
     DEBUG("Palacios Mallocs = %d, Frees = %d\n", mallocs, frees);
+    DEBUG("Palacios Vmallocs = %d, Vfrees = %d\n", vmallocs, vfrees);
     DEBUG("Palacios Page Allocs = %d, Page Frees = %d\n", pg_allocs, pg_frees);
 
     unregister_chrdev_region(MKDEV(v3_major_num, 0), MAX_VMS + 1);
@@ -478,11 +516,13 @@ static void __exit v3_exit(void) {
 
     palacios_deinit_mm();
 
-    remove_proc_entry("v3-guests", dir);
-    remove_proc_entry("v3-mem", dir);
+    remove_proc_entry("v3-guests", palacios_proc_dir);
     remove_proc_entry("v3vee", NULL);
 
     DEBUG("Palacios Module Mallocs = %d, Frees = %d\n", mod_allocs, mod_frees);
+    
+    MEMCHECK_DEINIT();
+    LOCKCHECK_DEINIT();
 }
 
 
@@ -496,7 +536,7 @@ void * trace_malloc(size_t size, gfp_t flags) {
     void * addr = NULL;
 
     mod_allocs++;
-    addr = kmalloc(size, flags);
+    addr = palacios_alloc_extended(size, flags);
 
     return addr;
 }
@@ -504,5 +544,5 @@ void * trace_malloc(size_t size, gfp_t flags) {
 
 void trace_free(const void * objp) {
     mod_frees++;
-    kfree(objp);
+    palacios_free((void*)objp);
 }