#include <linux/poll.h>
#include <linux/anon_inodes.h>
#include <linux/sched.h>
-#include <linux/vmalloc.h>
#include <linux/file.h>
#include <linux/spinlock.h>
#include <linux/rbtree.h>
+#include <linux/module.h>
#include <palacios/vmm.h>
+#include <palacios/vmm_host_events.h>
#include "palacios.h"
#include "vm.h"
unsigned int cmd, unsigned long arg,
void * priv_data),
void * priv_data) {
- struct vm_ctrl * ctrl = kmalloc(sizeof(struct vm_ctrl), GFP_KERNEL);
+ struct vm_ctrl * ctrl = palacios_alloc(sizeof(struct vm_ctrl));
if (ctrl == NULL) {
- printk("Error: Could not allocate vm ctrl %d\n", cmd);
+ WARNING("Error: Could not allocate vm ctrl %d\n", cmd);
return -1;
}
ctrl->priv_data = priv_data;
if (__insert_ctrl(guest, ctrl) != NULL) {
- printk("Could not insert guest ctrl %d\n", cmd);
- kfree(ctrl);
+ WARNING("Could not insert guest ctrl %d\n", cmd);
+ palacios_free(ctrl);
return -1;
}
}
+
+
static struct vm_ctrl * get_ctrl(struct v3_guest * guest, unsigned int cmd) {
struct rb_node * n = guest->vm_ctrls.rb_node;
struct vm_ctrl * ctrl = NULL;
return NULL;
}
+int remove_guest_ctrl(struct v3_guest * guest, unsigned int cmd) {
+ struct vm_ctrl * ctrl = get_ctrl(guest, cmd);
+
+ if (ctrl == NULL) {
+ INFO("Could not find control (%d) to remove\n", cmd);
+ return -1;
+ }
+
+ rb_erase(&(ctrl->tree_node), &(guest->vm_ctrls));
+
+ palacios_free(ctrl);
+
+ return 0;
+}
+
+static void free_guest_ctrls(struct v3_guest * guest) {
+ struct rb_node * node = rb_first(&(guest->vm_ctrls));
+ struct vm_ctrl * ctrl = NULL;
+
+ while (node) {
+ ctrl = rb_entry(node, struct vm_ctrl, tree_node);
+
+ node = rb_next(node);
+
+ WARNING("Cleaning up guest ctrl that was not removed explicitly (%d)\n", ctrl->cmd);
+
+ palacios_free(ctrl);
+ }
+}
struct v3_guest * guest = filp->private_data;
- printk("V3 IOCTL %d\n", ioctl);
+ DEBUG("V3 IOCTL %d\n", ioctl);
switch (ioctl) {
case V3_VM_LAUNCH: {
- printk("palacios: launching vm\n");
+ NOTICE("palacios: launching vm\n");
if (v3_start_vm(guest->v3_ctx, (0x1 << num_online_cpus()) - 1) < 0) {
- printk("palacios: launch of vm failed\n");
+ WARNING("palacios: launch of vm failed\n");
return -1;
}
break;
}
case V3_VM_STOP: {
- printk("Stopping VM (%s) (%p)\n", guest->name, guest);
+ NOTICE("Stopping VM (%s) (%p)\n", guest->name, guest);
if (irqs_disabled()) {
- printk("WHAT!!?? IRQs are disabled??\n");
+ ERROR("WHAT!!?? IRQs are disabled??\n");
break;
}
break;
}
case V3_VM_PAUSE: {
- printk("Pausing VM (%s)\n", guest->name);
+ NOTICE("Pausing VM (%s)\n", guest->name);
v3_pause_vm(guest->v3_ctx);
break;
}
case V3_VM_CONTINUE: {
- printk("Continuing VM (%s)\n", guest->name);
+ NOTICE("Continuing VM (%s)\n", guest->name);
v3_continue_vm(guest->v3_ctx);
break;
}
case V3_VM_SIMULATE: {
- printk("Simulating VM (%s) for %lu msecs\n", guest->name, arg);
+ NOTICE("Simulating VM (%s) for %lu msecs\n", guest->name, arg);
v3_simulate_vm(guest->v3_ctx, arg);
break;
}
+ case V3_VM_RESET: {
+ struct v3_reset_cmd r;
+ void __user * argp = (void __user *)arg;
+ v3_vm_reset_type t;
+ uint32_t core_range[2];
+
+ if (copy_from_user(&r, argp, sizeof(struct v3_reset_cmd))) {
+ WARNING("Copy from user error getting reset info\n");
+ return -EFAULT;
+ }
+
+ if (r.type==V3_RESET_VM_ALL) {
+ t=V3_VM_RESET_ALL;
+ } else if (r.type==V3_RESET_VM_HRT) {
+ t=V3_VM_RESET_HRT;
+ } else if (r.type==V3_RESET_VM_ROS) {
+ t=V3_VM_RESET_ROS;
+ } else if (r.type==V3_RESET_VM_CORE_RANGE){
+ t=V3_VM_RESET_CORE_RANGE;
+ core_range[0]=r.first_core;
+ core_range[1]=r.first_core+r.num_cores-1;
+ } else {
+ ERROR("Unknown reset type %d requested\n",r.type);
+ return -EFAULT;
+ }
+
+ if (v3_reset_vm_extended(guest->v3_ctx, t, core_range) == -1) {
+ WARNING("Error reseting VM\n");
+ return -EFAULT;
+ }
+ break;
+ }
#ifdef V3_CONFIG_CHECKPOINT
memset(&chkpt, 0, sizeof(struct v3_chkpt_info));
if (copy_from_user(&chkpt, argp, sizeof(struct v3_chkpt_info))) {
- printk("Copy from user error getting checkpoint info\n");
+ WARNING("Copy from user error getting checkpoint info\n");
return -EFAULT;
}
- printk("Saving Guest to %s:%s\n", chkpt.store, chkpt.url);
+ NOTICE("Saving Guest to %s:%s\n", chkpt.store, chkpt.url);
- if (v3_save_vm(guest->v3_ctx, chkpt.store, chkpt.url) == -1) {
- printk("Error checkpointing VM state\n");
+ if (v3_save_vm(guest->v3_ctx, chkpt.store, chkpt.url, chkpt.opts) == -1) {
+ WARNING("Error checkpointing VM state\n");
return -EFAULT;
}
memset(&chkpt, 0, sizeof(struct v3_chkpt_info));
if (copy_from_user(&chkpt, argp, sizeof(struct v3_chkpt_info))) {
- printk("Copy from user error getting checkpoint info\n");
+ WARNING("Copy from user error getting checkpoint info\n");
+ return -EFAULT;
+ }
+
+ NOTICE("Loading Guest from %s:%s\n", chkpt.store, chkpt.url);
+
+ if (v3_load_vm(guest->v3_ctx, chkpt.store, chkpt.url, chkpt.opts) == -1) {
+ WARNING("Error Loading VM state\n");
+ return -EFAULT;
+ }
+
+ break;
+ }
+#endif
+
+#ifdef V3_CONFIG_LIVE_MIGRATION
+ case V3_VM_SEND: {
+ struct v3_chkpt_info chkpt_info;
+ void __user * argp = (void __user *)arg;
+
+ memset(&chkpt_info,0, sizeof(struct v3_chkpt_info));
+
+ if(copy_from_user(&chkpt_info, argp, sizeof(struct v3_chkpt_info))){
+ WARNING("Copy from user error getting checkpoint info\n");
+ return -EFAULT;
+ }
+
+
+ NOTICE("Sending (live-migrating) Guest to %s:%s\n",chkpt_info.store, chkpt_info.url);
+
+ if (v3_send_vm(guest->v3_ctx, chkpt_info.store, chkpt_info.url, chkpt_info.opts) == -1) {
+ WARNING("Error sending VM\n");
return -EFAULT;
}
- printk("Loading Guest to %s:%s\n", chkpt.store, chkpt.url);
+ break;
+ }
- if (v3_load_vm(guest->v3_ctx, chkpt.store, chkpt.url) == -1) {
- printk("Error Loading VM state\n");
+ case V3_VM_RECEIVE: {
+ struct v3_chkpt_info chkpt_info;
+ void __user * argp = (void __user *)arg;
+
+ memset(&chkpt_info,0, sizeof(struct v3_chkpt_info));
+
+ if(copy_from_user(&chkpt_info, argp, sizeof(struct v3_chkpt_info))){
+ WARNING("Copy from user error getting checkpoint info\n");
+ return -EFAULT;
+ }
+
+
+ NOTICE("Receiving (live-migrating) Guest to %s:%s\n",chkpt_info.store, chkpt_info.url);
+
+ if (v3_receive_vm(guest->v3_ctx, chkpt_info.store, chkpt_info.url, chkpt_info.opts) == -1) {
+ WARNING("Error receiving VM\n");
return -EFAULT;
}
break;
}
#endif
+
+ case V3_VM_DEBUG: {
+ struct v3_debug_cmd cmd;
+ struct v3_debug_event evt;
+ void __user * argp = (void __user *)arg;
+
+ memset(&cmd, 0, sizeof(struct v3_debug_cmd));
+
+ if (copy_from_user(&cmd, argp, sizeof(struct v3_debug_cmd))) {
+ ERROR("Error: Could not copy debug command from user space\n");
+ return -EFAULT;
+ }
+
+ evt.core_id = cmd.core;
+ evt.cmd = cmd.cmd;
+
+ INFO("Debugging VM\n");
+
+ if (v3_deliver_debug_event(guest->v3_ctx, &evt) == -1) {
+ ERROR("Error could not deliver debug cmd\n");
+ return -EFAULT;
+ }
+
+ break;
+ }
case V3_VM_MOVE_CORE: {
struct v3_core_move_cmd cmd;
void __user * argp = (void __user *)arg;
memset(&cmd, 0, sizeof(struct v3_core_move_cmd));
if (copy_from_user(&cmd, argp, sizeof(struct v3_core_move_cmd))) {
- printk("copy from user error getting migrate command...\n");
+ WARNING("copy from user error getting migrate core command...\n");
+ return -EFAULT;
+ }
+
+ INFO("moving guest %s vcore %d to CPU %d\n", guest->name, cmd.vcore_id, cmd.pcore_id);
+
+ if (v3_move_vm_core(guest->v3_ctx, cmd.vcore_id, cmd.pcore_id)) {
+ ERROR("Could not move core\n");
+ return -EFAULT;
+ }
+
+ break;
+ }
+ case V3_VM_MOVE_MEM: {
+ struct v3_mem_move_cmd cmd;
+ void __user * argp = (void __user *)arg;
+
+ memset(&cmd, 0, sizeof(struct v3_mem_move_cmd));
+
+ if (copy_from_user(&cmd, argp, sizeof(struct v3_mem_move_cmd))) {
+ WARNING("copy from user error getting migrate memory command...\n");
return -EFAULT;
}
- printk("moving guest %s vcore %d to CPU %d\n", guest->name, cmd.vcore_id, cmd.pcore_id);
+ INFO("moving guest %s memory at gpa %p to memory with affinity for CPU %d\n", guest->name, (void*)(cmd.gpa), cmd.pcore_id);
- v3_move_vm_core(guest->v3_ctx, cmd.vcore_id, cmd.pcore_id);
+ if (v3_move_vm_mem(guest->v3_ctx, (void*)(cmd.gpa), cmd.pcore_id)) {
+ ERROR("Could not move memory\n");
+ return -EFAULT;
+ }
break;
}
}
- printk("\tUnhandled ctrl cmd: %d\n", ioctl);
+ WARNING("\tUnhandled ctrl cmd: %d\n", ioctl);
return -EINVAL;
}
}
int create_palacios_vm(struct v3_guest * guest) {
int err;
- init_vm_extensions(guest);
+ if (init_vm_extensions(guest) < 0) {
+ WARNING("palacios: failed to initialize extensions\n");
+ return -1;
+ }
- guest->v3_ctx = v3_create_vm(guest->img, (void *)guest, guest->name);
+ guest->v3_ctx = v3_create_vm(guest->img, (void *)guest, guest->name, (0x1 << num_online_cpus()) - 1);
if (guest->v3_ctx == NULL) {
- printk("palacios: failed to create vm\n");
- return -1;
+ WARNING("palacios: failed to create vm\n");
+ goto out_err;
}
-
- printk("Creating VM device: Major %d, Minor %d\n", MAJOR(guest->vm_dev), MINOR(guest->vm_dev));
+ NOTICE("Creating VM device: Major %d, Minor %d\n", MAJOR(guest->vm_dev), MINOR(guest->vm_dev));
cdev_init(&(guest->cdev), &v3_vm_fops);
guest->cdev.ops = &v3_vm_fops;
- printk("Adding VM device\n");
+ INFO("Adding VM device\n");
err = cdev_add(&(guest->cdev), guest->vm_dev, 1);
if (err) {
- printk("Fails to add cdev\n");
- v3_free_vm(guest->v3_ctx);
- return -1;
+ WARNING("Fails to add cdev\n");
+ goto out_err1;
}
if (device_create(v3_class, NULL, guest->vm_dev, guest, "v3-vm%d", MINOR(guest->vm_dev)) == NULL){
- printk("Fails to create device\n");
- cdev_del(&(guest->cdev));
- v3_free_vm(guest->v3_ctx);
- return -1;
+ WARNING("Fails to create device\n");
+ goto out_err2;
}
- printk("palacios: vm created at /dev/v3-vm%d\n", MINOR(guest->vm_dev));
+ NOTICE("palacios: vm created at /dev/v3-vm%d\n", MINOR(guest->vm_dev));
return 0;
+
+out_err2:
+ cdev_del(&(guest->cdev));
+out_err1:
+ v3_free_vm(guest->v3_ctx);
+out_err:
+ deinit_vm_extensions(guest);
+ return -1;
}
int free_palacios_vm(struct v3_guest * guest) {
- v3_free_vm(guest->v3_ctx);
+ if (v3_free_vm(guest->v3_ctx)<0) {
+ return -1;
+ }
device_destroy(v3_class, guest->vm_dev);
cdev_del(&(guest->cdev));
- vfree(guest->img);
- kfree(guest);
+ free_guest_ctrls(guest);
+
+ deinit_vm_extensions(guest);
+
+ palacios_vfree(guest->img);
+ palacios_free(guest);
return 0;
}
