X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=linux_module%2Fvm.c;h=440ff69f660c391e9d8b36f83080ed9be11f22cf;hb=2cb41f7db5b9f89113432d6b3daff4807ba8e5f2;hp=e2b621a677c31de398efc2f39074c4871dacabe3;hpb=468723ed5588347d32cca67553528a450a50ab36;p=palacios.git diff --git a/linux_module/vm.c b/linux_module/vm.c index e2b621a..440ff69 100644 --- a/linux_module/vm.c +++ b/linux_module/vm.c @@ -12,13 +12,13 @@ #include #include #include -#include #include #include #include #include #include +#include #include "palacios.h" #include "vm.h" @@ -69,10 +69,10 @@ int add_guest_ctrl(struct v3_guest * guest, unsigned int cmd, 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; } @@ -81,8 +81,8 @@ int add_guest_ctrl(struct v3_guest * guest, unsigned int cmd, 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; } @@ -92,6 +92,8 @@ int add_guest_ctrl(struct v3_guest * guest, unsigned int cmd, } + + 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; @@ -111,6 +113,35 @@ static struct vm_ctrl * get_ctrl(struct v3_guest * guest, unsigned int cmd) { 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); + } +} @@ -125,24 +156,24 @@ static long v3_vm_ioctl(struct file * filp, 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; } @@ -150,20 +181,52 @@ static long v3_vm_ioctl(struct file * filp, 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 @@ -174,14 +237,14 @@ static long v3_vm_ioctl(struct file * filp, 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; } @@ -194,20 +257,91 @@ static long v3_vm_ioctl(struct file * filp, 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; @@ -215,13 +349,36 @@ static long v3_vm_ioctl(struct file * filp, 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; } @@ -233,7 +390,7 @@ static long v3_vm_ioctl(struct file * filp, } - printk("\tUnhandled ctrl cmd: %d\n", ioctl); + WARNING("\tUnhandled ctrl cmd: %d\n", ioctl); return -EINVAL; } } @@ -278,17 +435,19 @@ extern u32 frees; 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); @@ -296,25 +455,30 @@ int create_palacios_vm(struct v3_guest * guest) { 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; } @@ -323,14 +487,20 @@ int create_palacios_vm(struct v3_guest * guest) { 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; }