2011-05-13 04:54:01 +00:00
|
|
|
/*-
|
|
|
|
* Copyright (c) 2011 NetApp, Inc.
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
|
|
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
|
|
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
* SUCH DAMAGE.
|
|
|
|
*
|
|
|
|
* $FreeBSD$
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
|
|
#include <sys/param.h>
|
2012-04-26 07:52:28 +00:00
|
|
|
#include <sys/systm.h>
|
2011-05-13 04:54:01 +00:00
|
|
|
#include <sys/kernel.h>
|
|
|
|
#include <sys/module.h>
|
|
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <sys/malloc.h>
|
|
|
|
#include <sys/pcpu.h>
|
|
|
|
#include <sys/lock.h>
|
|
|
|
#include <sys/mutex.h>
|
|
|
|
#include <sys/proc.h>
|
|
|
|
#include <sys/sched.h>
|
|
|
|
#include <sys/smp.h>
|
|
|
|
#include <sys/systm.h>
|
|
|
|
|
|
|
|
#include <vm/vm.h>
|
|
|
|
|
|
|
|
#include <machine/vm.h>
|
|
|
|
#include <machine/pcb.h>
|
2012-10-12 18:32:44 +00:00
|
|
|
#include <machine/smp.h>
|
2011-05-14 20:35:01 +00:00
|
|
|
#include <x86/apicreg.h>
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
#include <machine/vmm.h>
|
2012-10-29 01:51:24 +00:00
|
|
|
#include "vmm_host.h"
|
2011-05-13 04:54:01 +00:00
|
|
|
#include "vmm_mem.h"
|
|
|
|
#include "vmm_util.h"
|
|
|
|
#include <machine/vmm_dev.h>
|
|
|
|
#include "vlapic.h"
|
|
|
|
#include "vmm_msr.h"
|
|
|
|
#include "vmm_ipi.h"
|
|
|
|
#include "vmm_stat.h"
|
2012-10-25 04:29:21 +00:00
|
|
|
#include "vmm_lapic.h"
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
#include "io/ppt.h"
|
|
|
|
#include "io/iommu.h"
|
|
|
|
|
|
|
|
struct vlapic;
|
|
|
|
|
|
|
|
struct vcpu {
|
|
|
|
int flags;
|
2012-10-12 18:32:44 +00:00
|
|
|
enum vcpu_state state;
|
|
|
|
struct mtx mtx;
|
2011-05-13 04:54:01 +00:00
|
|
|
int hostcpu; /* host cpuid this vcpu last ran on */
|
|
|
|
uint64_t guest_msrs[VMM_MSR_NUM];
|
|
|
|
struct vlapic *vlapic;
|
|
|
|
int vcpuid;
|
2012-04-26 07:52:28 +00:00
|
|
|
struct savefpu *guestfpu; /* guest fpu state */
|
2011-05-13 04:54:01 +00:00
|
|
|
void *stats;
|
2012-09-24 19:32:24 +00:00
|
|
|
struct vm_exit exitinfo;
|
2012-09-25 19:08:51 +00:00
|
|
|
enum x2apic_state x2apic_state;
|
2012-10-24 02:54:21 +00:00
|
|
|
int nmi_pending;
|
2011-05-13 04:54:01 +00:00
|
|
|
};
|
|
|
|
|
2012-10-25 04:29:21 +00:00
|
|
|
#define vcpu_lock_init(v) mtx_init(&((v)->mtx), "vcpu lock", 0, MTX_SPIN)
|
|
|
|
#define vcpu_lock(v) mtx_lock_spin(&((v)->mtx))
|
|
|
|
#define vcpu_unlock(v) mtx_unlock_spin(&((v)->mtx))
|
2012-10-12 18:32:44 +00:00
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
#define VM_MAX_MEMORY_SEGMENTS 2
|
|
|
|
|
|
|
|
struct vm {
|
|
|
|
void *cookie; /* processor-specific data */
|
|
|
|
void *iommu; /* iommu-specific data */
|
|
|
|
struct vcpu vcpu[VM_MAXCPU];
|
|
|
|
int num_mem_segs;
|
|
|
|
struct vm_memory_segment mem_segs[VM_MAX_MEMORY_SEGMENTS];
|
|
|
|
char name[VM_MAX_NAMELEN];
|
|
|
|
|
|
|
|
/*
|
2011-06-28 06:26:03 +00:00
|
|
|
* Set of active vcpus.
|
2011-05-13 04:54:01 +00:00
|
|
|
* An active vcpu is one that has been started implicitly (BSP) or
|
|
|
|
* explicitly (AP) by sending it a startup ipi.
|
|
|
|
*/
|
2011-06-28 06:26:03 +00:00
|
|
|
cpuset_t active_cpus;
|
2011-05-13 04:54:01 +00:00
|
|
|
};
|
|
|
|
|
2013-04-12 01:16:52 +00:00
|
|
|
static int vmm_initialized;
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
static struct vmm_ops *ops;
|
|
|
|
#define VMM_INIT() (ops != NULL ? (*ops->init)() : 0)
|
|
|
|
#define VMM_CLEANUP() (ops != NULL ? (*ops->cleanup)() : 0)
|
|
|
|
|
|
|
|
#define VMINIT(vm) (ops != NULL ? (*ops->vminit)(vm): NULL)
|
2012-09-24 19:32:24 +00:00
|
|
|
#define VMRUN(vmi, vcpu, rip) \
|
|
|
|
(ops != NULL ? (*ops->vmrun)(vmi, vcpu, rip) : ENXIO)
|
2011-05-13 04:54:01 +00:00
|
|
|
#define VMCLEANUP(vmi) (ops != NULL ? (*ops->vmcleanup)(vmi) : NULL)
|
2012-10-03 00:46:30 +00:00
|
|
|
#define VMMMAP_SET(vmi, gpa, hpa, len, attr, prot, spm) \
|
|
|
|
(ops != NULL ? \
|
|
|
|
(*ops->vmmmap_set)(vmi, gpa, hpa, len, attr, prot, spm) : \
|
|
|
|
ENXIO)
|
|
|
|
#define VMMMAP_GET(vmi, gpa) \
|
|
|
|
(ops != NULL ? (*ops->vmmmap_get)(vmi, gpa) : ENXIO)
|
2011-05-13 04:54:01 +00:00
|
|
|
#define VMGETREG(vmi, vcpu, num, retval) \
|
|
|
|
(ops != NULL ? (*ops->vmgetreg)(vmi, vcpu, num, retval) : ENXIO)
|
|
|
|
#define VMSETREG(vmi, vcpu, num, val) \
|
|
|
|
(ops != NULL ? (*ops->vmsetreg)(vmi, vcpu, num, val) : ENXIO)
|
|
|
|
#define VMGETDESC(vmi, vcpu, num, desc) \
|
|
|
|
(ops != NULL ? (*ops->vmgetdesc)(vmi, vcpu, num, desc) : ENXIO)
|
|
|
|
#define VMSETDESC(vmi, vcpu, num, desc) \
|
|
|
|
(ops != NULL ? (*ops->vmsetdesc)(vmi, vcpu, num, desc) : ENXIO)
|
|
|
|
#define VMINJECT(vmi, vcpu, type, vec, ec, ecv) \
|
|
|
|
(ops != NULL ? (*ops->vminject)(vmi, vcpu, type, vec, ec, ecv) : ENXIO)
|
|
|
|
#define VMGETCAP(vmi, vcpu, num, retval) \
|
|
|
|
(ops != NULL ? (*ops->vmgetcap)(vmi, vcpu, num, retval) : ENXIO)
|
|
|
|
#define VMSETCAP(vmi, vcpu, num, val) \
|
|
|
|
(ops != NULL ? (*ops->vmsetcap)(vmi, vcpu, num, val) : ENXIO)
|
|
|
|
|
2013-01-04 02:49:12 +00:00
|
|
|
#define fpu_start_emulating() load_cr0(rcr0() | CR0_TS)
|
|
|
|
#define fpu_stop_emulating() clts()
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
static MALLOC_DEFINE(M_VM, "vm", "vm");
|
|
|
|
CTASSERT(VMM_MSR_NUM <= 64); /* msr_mask can keep track of up to 64 msrs */
|
|
|
|
|
|
|
|
/* statistics */
|
2013-03-16 22:40:20 +00:00
|
|
|
static VMM_STAT(VCPU_TOTAL_RUNTIME, "vcpu total runtime");
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
static void
|
|
|
|
vcpu_cleanup(struct vcpu *vcpu)
|
|
|
|
{
|
|
|
|
vlapic_cleanup(vcpu->vlapic);
|
2012-04-26 07:52:28 +00:00
|
|
|
vmm_stat_free(vcpu->stats);
|
|
|
|
fpu_save_area_free(vcpu->guestfpu);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
vcpu_init(struct vm *vm, uint32_t vcpu_id)
|
|
|
|
{
|
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpu_id];
|
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
vcpu_lock_init(vcpu);
|
|
|
|
vcpu->hostcpu = NOCPU;
|
2011-05-13 04:54:01 +00:00
|
|
|
vcpu->vcpuid = vcpu_id;
|
|
|
|
vcpu->vlapic = vlapic_init(vm, vcpu_id);
|
2012-09-26 00:06:17 +00:00
|
|
|
vm_set_x2apic_state(vm, vcpu_id, X2APIC_ENABLED);
|
2012-04-26 07:52:28 +00:00
|
|
|
vcpu->guestfpu = fpu_save_area_alloc();
|
|
|
|
fpu_save_area_reset(vcpu->guestfpu);
|
2011-05-13 04:54:01 +00:00
|
|
|
vcpu->stats = vmm_stat_alloc();
|
|
|
|
}
|
|
|
|
|
2012-09-24 19:32:24 +00:00
|
|
|
struct vm_exit *
|
|
|
|
vm_exitinfo(struct vm *vm, int cpuid)
|
|
|
|
{
|
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
if (cpuid < 0 || cpuid >= VM_MAXCPU)
|
|
|
|
panic("vm_exitinfo: invalid cpuid %d", cpuid);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[cpuid];
|
|
|
|
|
|
|
|
return (&vcpu->exitinfo);
|
|
|
|
}
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
static int
|
|
|
|
vmm_init(void)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
2012-10-29 01:51:24 +00:00
|
|
|
vmm_host_state_init();
|
2011-05-13 04:54:01 +00:00
|
|
|
vmm_ipi_init();
|
|
|
|
|
|
|
|
error = vmm_mem_init();
|
|
|
|
if (error)
|
|
|
|
return (error);
|
|
|
|
|
|
|
|
if (vmm_is_intel())
|
|
|
|
ops = &vmm_ops_intel;
|
|
|
|
else if (vmm_is_amd())
|
|
|
|
ops = &vmm_ops_amd;
|
|
|
|
else
|
|
|
|
return (ENXIO);
|
|
|
|
|
|
|
|
vmm_msr_init();
|
|
|
|
|
|
|
|
return (VMM_INIT());
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
vmm_handler(module_t mod, int what, void *arg)
|
|
|
|
{
|
|
|
|
int error;
|
|
|
|
|
|
|
|
switch (what) {
|
|
|
|
case MOD_LOAD:
|
|
|
|
vmmdev_init();
|
|
|
|
iommu_init();
|
|
|
|
error = vmm_init();
|
2013-04-12 01:16:52 +00:00
|
|
|
if (error == 0)
|
|
|
|
vmm_initialized = 1;
|
2011-05-13 04:54:01 +00:00
|
|
|
break;
|
|
|
|
case MOD_UNLOAD:
|
2012-10-11 19:39:54 +00:00
|
|
|
error = vmmdev_cleanup();
|
|
|
|
if (error == 0) {
|
|
|
|
iommu_cleanup();
|
|
|
|
vmm_ipi_cleanup();
|
|
|
|
error = VMM_CLEANUP();
|
2013-08-01 05:59:28 +00:00
|
|
|
/*
|
|
|
|
* Something bad happened - prevent new
|
|
|
|
* VMs from being created
|
|
|
|
*/
|
|
|
|
if (error)
|
|
|
|
vmm_initialized = 0;
|
2012-10-11 19:39:54 +00:00
|
|
|
}
|
2011-05-13 04:54:01 +00:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
error = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
static moduledata_t vmm_kmod = {
|
|
|
|
"vmm",
|
|
|
|
vmm_handler,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
2013-01-21 01:33:10 +00:00
|
|
|
* vmm initialization has the following dependencies:
|
|
|
|
*
|
|
|
|
* - iommu initialization must happen after the pci passthru driver has had
|
|
|
|
* a chance to attach to any passthru devices (after SI_SUB_CONFIGURE).
|
|
|
|
*
|
|
|
|
* - VT-x initialization requires smp_rendezvous() and therefore must happen
|
|
|
|
* after SMP is fully functional (after SI_SUB_SMP).
|
2011-05-13 04:54:01 +00:00
|
|
|
*/
|
2013-01-21 01:33:10 +00:00
|
|
|
DECLARE_MODULE(vmm, vmm_kmod, SI_SUB_SMP + 1, SI_ORDER_ANY);
|
2011-05-13 04:54:01 +00:00
|
|
|
MODULE_VERSION(vmm, 1);
|
|
|
|
|
|
|
|
SYSCTL_NODE(_hw, OID_AUTO, vmm, CTLFLAG_RW, NULL, NULL);
|
|
|
|
|
2013-04-12 01:16:52 +00:00
|
|
|
int
|
|
|
|
vm_create(const char *name, struct vm **retvm)
|
2011-05-13 04:54:01 +00:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
struct vm *vm;
|
|
|
|
vm_paddr_t maxaddr;
|
|
|
|
|
|
|
|
const int BSP = 0;
|
|
|
|
|
2013-04-12 01:16:52 +00:00
|
|
|
/*
|
|
|
|
* If vmm.ko could not be successfully initialized then don't attempt
|
|
|
|
* to create the virtual machine.
|
|
|
|
*/
|
|
|
|
if (!vmm_initialized)
|
|
|
|
return (ENXIO);
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
if (name == NULL || strlen(name) >= VM_MAX_NAMELEN)
|
2013-04-12 01:16:52 +00:00
|
|
|
return (EINVAL);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
vm = malloc(sizeof(struct vm), M_VM, M_WAITOK | M_ZERO);
|
|
|
|
strcpy(vm->name, name);
|
|
|
|
vm->cookie = VMINIT(vm);
|
|
|
|
|
|
|
|
for (i = 0; i < VM_MAXCPU; i++) {
|
|
|
|
vcpu_init(vm, i);
|
|
|
|
guest_msrs_init(vm, i);
|
|
|
|
}
|
|
|
|
|
|
|
|
maxaddr = vmm_mem_maxaddr();
|
|
|
|
vm->iommu = iommu_create_domain(maxaddr);
|
|
|
|
vm_activate_cpu(vm, BSP);
|
|
|
|
|
2013-04-12 01:16:52 +00:00
|
|
|
*retvm = vm;
|
|
|
|
return (0);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
2012-10-04 02:27:14 +00:00
|
|
|
static void
|
|
|
|
vm_free_mem_seg(struct vm *vm, struct vm_memory_segment *seg)
|
|
|
|
{
|
|
|
|
size_t len;
|
|
|
|
vm_paddr_t hpa;
|
2012-10-08 23:41:26 +00:00
|
|
|
void *host_domain;
|
|
|
|
|
|
|
|
host_domain = iommu_host_domain();
|
2012-10-04 02:27:14 +00:00
|
|
|
|
|
|
|
len = 0;
|
|
|
|
while (len < seg->len) {
|
|
|
|
hpa = vm_gpa2hpa(vm, seg->gpa + len, PAGE_SIZE);
|
|
|
|
if (hpa == (vm_paddr_t)-1) {
|
|
|
|
panic("vm_free_mem_segs: cannot free hpa "
|
|
|
|
"associated with gpa 0x%016lx", seg->gpa + len);
|
|
|
|
}
|
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
/*
|
|
|
|
* Remove the 'gpa' to 'hpa' mapping in VMs domain.
|
|
|
|
* And resurrect the 1:1 mapping for 'hpa' in 'host_domain'.
|
|
|
|
*/
|
|
|
|
iommu_remove_mapping(vm->iommu, seg->gpa + len, PAGE_SIZE);
|
|
|
|
iommu_create_mapping(host_domain, hpa, hpa, PAGE_SIZE);
|
|
|
|
|
2012-10-04 02:27:14 +00:00
|
|
|
vmm_mem_free(hpa, PAGE_SIZE);
|
|
|
|
|
|
|
|
len += PAGE_SIZE;
|
|
|
|
}
|
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
/*
|
|
|
|
* Invalidate cached translations associated with 'vm->iommu' since
|
|
|
|
* we have now moved some pages from it.
|
|
|
|
*/
|
|
|
|
iommu_invalidate_tlb(vm->iommu);
|
|
|
|
|
2012-10-04 02:27:14 +00:00
|
|
|
bzero(seg, sizeof(struct vm_memory_segment));
|
|
|
|
}
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
void
|
|
|
|
vm_destroy(struct vm *vm)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
ppt_unassign_all(vm);
|
|
|
|
|
|
|
|
for (i = 0; i < vm->num_mem_segs; i++)
|
2012-10-04 02:27:14 +00:00
|
|
|
vm_free_mem_seg(vm, &vm->mem_segs[i]);
|
|
|
|
|
|
|
|
vm->num_mem_segs = 0;
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
for (i = 0; i < VM_MAXCPU; i++)
|
|
|
|
vcpu_cleanup(&vm->vcpu[i]);
|
|
|
|
|
|
|
|
iommu_destroy_domain(vm->iommu);
|
|
|
|
|
|
|
|
VMCLEANUP(vm->cookie);
|
|
|
|
|
|
|
|
free(vm, M_VM);
|
|
|
|
}
|
|
|
|
|
|
|
|
const char *
|
|
|
|
vm_name(struct vm *vm)
|
|
|
|
{
|
|
|
|
return (vm->name);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_map_mmio(struct vm *vm, vm_paddr_t gpa, size_t len, vm_paddr_t hpa)
|
|
|
|
{
|
|
|
|
const boolean_t spok = TRUE; /* superpage mappings are ok */
|
|
|
|
|
2012-10-03 00:46:30 +00:00
|
|
|
return (VMMMAP_SET(vm->cookie, gpa, hpa, len, VM_MEMATTR_UNCACHEABLE,
|
|
|
|
VM_PROT_RW, spok));
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_unmap_mmio(struct vm *vm, vm_paddr_t gpa, size_t len)
|
|
|
|
{
|
|
|
|
const boolean_t spok = TRUE; /* superpage mappings are ok */
|
|
|
|
|
2012-10-03 00:46:30 +00:00
|
|
|
return (VMMMAP_SET(vm->cookie, gpa, 0, len, 0,
|
|
|
|
VM_PROT_NONE, spok));
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
2012-09-29 01:15:45 +00:00
|
|
|
/*
|
|
|
|
* Returns TRUE if 'gpa' is available for allocation and FALSE otherwise
|
|
|
|
*/
|
|
|
|
static boolean_t
|
|
|
|
vm_gpa_available(struct vm *vm, vm_paddr_t gpa)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
vm_paddr_t gpabase, gpalimit;
|
|
|
|
|
|
|
|
if (gpa & PAGE_MASK)
|
|
|
|
panic("vm_gpa_available: gpa (0x%016lx) not page aligned", gpa);
|
|
|
|
|
|
|
|
for (i = 0; i < vm->num_mem_segs; i++) {
|
|
|
|
gpabase = vm->mem_segs[i].gpa;
|
|
|
|
gpalimit = gpabase + vm->mem_segs[i].len;
|
|
|
|
if (gpa >= gpabase && gpa < gpalimit)
|
|
|
|
return (FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (TRUE);
|
|
|
|
}
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
int
|
2012-09-29 01:15:45 +00:00
|
|
|
vm_malloc(struct vm *vm, vm_paddr_t gpa, size_t len)
|
2011-05-13 04:54:01 +00:00
|
|
|
{
|
2012-09-29 01:15:45 +00:00
|
|
|
int error, available, allocated;
|
2012-10-04 02:27:14 +00:00
|
|
|
struct vm_memory_segment *seg;
|
2012-09-29 01:15:45 +00:00
|
|
|
vm_paddr_t g, hpa;
|
2012-10-08 23:41:26 +00:00
|
|
|
void *host_domain;
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
const boolean_t spok = TRUE; /* superpage mappings are ok */
|
2012-09-29 01:15:45 +00:00
|
|
|
|
|
|
|
if ((gpa & PAGE_MASK) || (len & PAGE_MASK) || len == 0)
|
|
|
|
return (EINVAL);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-09-29 01:15:45 +00:00
|
|
|
available = allocated = 0;
|
|
|
|
g = gpa;
|
|
|
|
while (g < gpa + len) {
|
|
|
|
if (vm_gpa_available(vm, g))
|
|
|
|
available++;
|
|
|
|
else
|
|
|
|
allocated++;
|
|
|
|
|
|
|
|
g += PAGE_SIZE;
|
|
|
|
}
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
/*
|
2012-09-29 01:15:45 +00:00
|
|
|
* If there are some allocated and some available pages in the address
|
|
|
|
* range then it is an error.
|
2011-05-13 04:54:01 +00:00
|
|
|
*/
|
2012-09-29 01:15:45 +00:00
|
|
|
if (allocated && available)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the entire address range being requested has already been
|
|
|
|
* allocated then there isn't anything more to do.
|
|
|
|
*/
|
|
|
|
if (allocated && available == 0)
|
|
|
|
return (0);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
if (vm->num_mem_segs >= VM_MAX_MEMORY_SEGMENTS)
|
|
|
|
return (E2BIG);
|
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
host_domain = iommu_host_domain();
|
|
|
|
|
2012-10-04 02:27:14 +00:00
|
|
|
seg = &vm->mem_segs[vm->num_mem_segs];
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
error = 0;
|
2012-10-04 02:27:14 +00:00
|
|
|
seg->gpa = gpa;
|
|
|
|
seg->len = 0;
|
|
|
|
while (seg->len < len) {
|
|
|
|
hpa = vmm_mem_alloc(PAGE_SIZE);
|
|
|
|
if (hpa == 0) {
|
|
|
|
error = ENOMEM;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
error = VMMMAP_SET(vm->cookie, gpa + seg->len, hpa, PAGE_SIZE,
|
|
|
|
VM_MEMATTR_WRITE_BACK, VM_PROT_ALL, spok);
|
|
|
|
if (error)
|
|
|
|
break;
|
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
/*
|
|
|
|
* Remove the 1:1 mapping for 'hpa' from the 'host_domain'.
|
|
|
|
* Add mapping for 'gpa + seg->len' to 'hpa' in the VMs domain.
|
|
|
|
*/
|
|
|
|
iommu_remove_mapping(host_domain, hpa, PAGE_SIZE);
|
2012-10-04 02:27:14 +00:00
|
|
|
iommu_create_mapping(vm->iommu, gpa + seg->len, hpa, PAGE_SIZE);
|
|
|
|
|
|
|
|
seg->len += PAGE_SIZE;
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
if (error) {
|
2012-10-04 02:27:14 +00:00
|
|
|
vm_free_mem_seg(vm, seg);
|
|
|
|
return (error);
|
|
|
|
}
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-10-08 23:41:26 +00:00
|
|
|
/*
|
|
|
|
* Invalidate cached translations associated with 'host_domain' since
|
|
|
|
* we have now moved some pages from it.
|
|
|
|
*/
|
|
|
|
iommu_invalidate_tlb(host_domain);
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
vm->num_mem_segs++;
|
2012-09-29 01:15:45 +00:00
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
vm_paddr_t
|
|
|
|
vm_gpa2hpa(struct vm *vm, vm_paddr_t gpa, size_t len)
|
|
|
|
{
|
2012-10-03 01:18:51 +00:00
|
|
|
vm_paddr_t nextpage;
|
|
|
|
|
|
|
|
nextpage = rounddown(gpa + PAGE_SIZE, PAGE_SIZE);
|
|
|
|
if (len > nextpage - gpa)
|
|
|
|
panic("vm_gpa2hpa: invalid gpa/len: 0x%016lx/%lu", gpa, len);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-10-03 00:46:30 +00:00
|
|
|
return (VMMMAP_GET(vm->cookie, gpa));
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_gpabase2memseg(struct vm *vm, vm_paddr_t gpabase,
|
|
|
|
struct vm_memory_segment *seg)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < vm->num_mem_segs; i++) {
|
|
|
|
if (gpabase == vm->mem_segs[i].gpa) {
|
|
|
|
*seg = vm->mem_segs[i];
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_get_register(struct vm *vm, int vcpu, int reg, uint64_t *retval)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (reg >= VM_REG_LAST)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMGETREG(vm->cookie, vcpu, reg, retval));
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_set_register(struct vm *vm, int vcpu, int reg, uint64_t val)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (reg >= VM_REG_LAST)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMSETREG(vm->cookie, vcpu, reg, val));
|
|
|
|
}
|
|
|
|
|
|
|
|
static boolean_t
|
|
|
|
is_descriptor_table(int reg)
|
|
|
|
{
|
|
|
|
|
|
|
|
switch (reg) {
|
|
|
|
case VM_REG_GUEST_IDTR:
|
|
|
|
case VM_REG_GUEST_GDTR:
|
|
|
|
return (TRUE);
|
|
|
|
default:
|
|
|
|
return (FALSE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static boolean_t
|
|
|
|
is_segment_register(int reg)
|
|
|
|
{
|
|
|
|
|
|
|
|
switch (reg) {
|
|
|
|
case VM_REG_GUEST_ES:
|
|
|
|
case VM_REG_GUEST_CS:
|
|
|
|
case VM_REG_GUEST_SS:
|
|
|
|
case VM_REG_GUEST_DS:
|
|
|
|
case VM_REG_GUEST_FS:
|
|
|
|
case VM_REG_GUEST_GS:
|
|
|
|
case VM_REG_GUEST_TR:
|
|
|
|
case VM_REG_GUEST_LDTR:
|
|
|
|
return (TRUE);
|
|
|
|
default:
|
|
|
|
return (FALSE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_get_seg_desc(struct vm *vm, int vcpu, int reg,
|
|
|
|
struct seg_desc *desc)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (!is_segment_register(reg) && !is_descriptor_table(reg))
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMGETDESC(vm->cookie, vcpu, reg, desc));
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_set_seg_desc(struct vm *vm, int vcpu, int reg,
|
|
|
|
struct seg_desc *desc)
|
|
|
|
{
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (!is_segment_register(reg) && !is_descriptor_table(reg))
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMSETDESC(vm->cookie, vcpu, reg, desc));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
restore_guest_fpustate(struct vcpu *vcpu)
|
|
|
|
{
|
|
|
|
|
2012-04-26 07:52:28 +00:00
|
|
|
/* flush host state to the pcb */
|
|
|
|
fpuexit(curthread);
|
2012-10-26 03:12:40 +00:00
|
|
|
|
|
|
|
/* restore guest FPU state */
|
2011-05-13 04:54:01 +00:00
|
|
|
fpu_stop_emulating();
|
2012-04-26 07:52:28 +00:00
|
|
|
fpurestore(vcpu->guestfpu);
|
2012-10-26 03:12:40 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The FPU is now "dirty" with the guest's state so turn on emulation
|
|
|
|
* to trap any access to the FPU by the host.
|
|
|
|
*/
|
|
|
|
fpu_start_emulating();
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
save_guest_fpustate(struct vcpu *vcpu)
|
|
|
|
{
|
|
|
|
|
2012-10-26 03:12:40 +00:00
|
|
|
if ((rcr0() & CR0_TS) == 0)
|
|
|
|
panic("fpu emulation not enabled in host!");
|
|
|
|
|
|
|
|
/* save guest FPU state */
|
|
|
|
fpu_stop_emulating();
|
2012-04-26 07:52:28 +00:00
|
|
|
fpusave(vcpu->guestfpu);
|
2011-05-13 04:54:01 +00:00
|
|
|
fpu_start_emulating();
|
|
|
|
}
|
|
|
|
|
2013-03-16 22:40:20 +00:00
|
|
|
static VMM_STAT(VCPU_IDLE_TICKS, "number of ticks vcpu was idle");
|
2012-10-25 04:29:21 +00:00
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
int
|
|
|
|
vm_run(struct vm *vm, struct vm_run *vmrun)
|
|
|
|
{
|
2012-10-25 04:29:21 +00:00
|
|
|
int error, vcpuid, sleepticks, t;
|
2011-05-13 04:54:01 +00:00
|
|
|
struct vcpu *vcpu;
|
|
|
|
struct pcb *pcb;
|
2012-10-25 04:29:21 +00:00
|
|
|
uint64_t tscval, rip;
|
|
|
|
struct vm_exit *vme;
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
vcpuid = vmrun->cpuid;
|
|
|
|
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
2012-10-25 04:29:21 +00:00
|
|
|
vme = &vmrun->vm_exit;
|
|
|
|
rip = vmrun->rip;
|
|
|
|
restart:
|
2011-05-13 04:54:01 +00:00
|
|
|
critical_enter();
|
|
|
|
|
|
|
|
tscval = rdtsc();
|
|
|
|
|
|
|
|
pcb = PCPU_GET(curpcb);
|
2011-05-14 20:35:01 +00:00
|
|
|
set_pcb_flags(pcb, PCB_FULL_IRET);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-04-26 07:52:28 +00:00
|
|
|
restore_guest_msrs(vm, vcpuid);
|
2011-05-13 04:54:01 +00:00
|
|
|
restore_guest_fpustate(vcpu);
|
2012-10-12 18:32:44 +00:00
|
|
|
|
|
|
|
vcpu->hostcpu = curcpu;
|
2012-10-25 04:29:21 +00:00
|
|
|
error = VMRUN(vm->cookie, vcpuid, rip);
|
2012-10-12 18:32:44 +00:00
|
|
|
vcpu->hostcpu = NOCPU;
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
save_guest_fpustate(vcpu);
|
|
|
|
restore_host_msrs(vm, vcpuid);
|
|
|
|
|
|
|
|
vmm_stat_incr(vm, vcpuid, VCPU_TOTAL_RUNTIME, rdtsc() - tscval);
|
|
|
|
|
2012-09-24 19:32:24 +00:00
|
|
|
/* copy the exit information */
|
2012-10-25 04:29:21 +00:00
|
|
|
bcopy(&vcpu->exitinfo, vme, sizeof(struct vm_exit));
|
2012-09-24 19:32:24 +00:00
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
critical_exit();
|
|
|
|
|
2012-10-25 04:29:21 +00:00
|
|
|
/*
|
|
|
|
* Oblige the guest's desire to 'hlt' by sleeping until the vcpu
|
|
|
|
* is ready to run.
|
|
|
|
*/
|
|
|
|
if (error == 0 && vme->exitcode == VM_EXITCODE_HLT) {
|
|
|
|
vcpu_lock(vcpu);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Figure out the number of host ticks until the next apic
|
|
|
|
* timer interrupt in the guest.
|
|
|
|
*/
|
|
|
|
sleepticks = lapic_timer_tick(vm, vcpuid);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If the guest local apic timer is disabled then sleep for
|
|
|
|
* a long time but not forever.
|
|
|
|
*/
|
|
|
|
if (sleepticks < 0)
|
|
|
|
sleepticks = hz;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do a final check for pending NMI or interrupts before
|
|
|
|
* really putting this thread to sleep.
|
|
|
|
*
|
|
|
|
* These interrupts could have happened any time after we
|
|
|
|
* returned from VMRUN() and before we grabbed the vcpu lock.
|
|
|
|
*/
|
|
|
|
if (!vm_nmi_pending(vm, vcpuid) &&
|
|
|
|
lapic_pending_intr(vm, vcpuid) < 0) {
|
|
|
|
if (sleepticks <= 0)
|
|
|
|
panic("invalid sleepticks %d", sleepticks);
|
|
|
|
t = ticks;
|
|
|
|
msleep_spin(vcpu, &vcpu->mtx, "vmidle", sleepticks);
|
|
|
|
vmm_stat_incr(vm, vcpuid, VCPU_IDLE_TICKS, ticks - t);
|
|
|
|
}
|
|
|
|
|
|
|
|
vcpu_unlock(vcpu);
|
|
|
|
|
|
|
|
rip = vme->rip + vme->inst_length;
|
|
|
|
goto restart;
|
|
|
|
}
|
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_inject_event(struct vm *vm, int vcpuid, int type,
|
|
|
|
int vector, uint32_t code, int code_valid)
|
|
|
|
{
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if ((type > VM_EVENT_NONE && type < VM_EVENT_MAX) == 0)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (vector < 0 || vector > 255)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMINJECT(vm->cookie, vcpuid, type, vector, code, code_valid));
|
|
|
|
}
|
|
|
|
|
2013-03-16 22:40:20 +00:00
|
|
|
static VMM_STAT(VCPU_NMI_COUNT, "number of NMIs delivered to vcpu");
|
2012-10-24 02:54:21 +00:00
|
|
|
|
2011-05-13 04:54:01 +00:00
|
|
|
int
|
2012-10-24 02:54:21 +00:00
|
|
|
vm_inject_nmi(struct vm *vm, int vcpuid)
|
2011-05-13 04:54:01 +00:00
|
|
|
{
|
2012-10-24 02:54:21 +00:00
|
|
|
struct vcpu *vcpu;
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-10-24 02:54:21 +00:00
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
2011-05-13 04:54:01 +00:00
|
|
|
return (EINVAL);
|
|
|
|
|
2012-10-24 02:54:21 +00:00
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
|
|
|
vcpu->nmi_pending = 1;
|
|
|
|
vm_interrupt_hostcpu(vm, vcpuid);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_nmi_pending(struct vm *vm, int vcpuid)
|
|
|
|
{
|
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
panic("vm_nmi_pending: invalid vcpuid %d", vcpuid);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
|
|
|
return (vcpu->nmi_pending);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
vm_nmi_clear(struct vm *vm, int vcpuid)
|
|
|
|
{
|
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
panic("vm_nmi_pending: invalid vcpuid %d", vcpuid);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
|
|
|
if (vcpu->nmi_pending == 0)
|
|
|
|
panic("vm_nmi_clear: inconsistent nmi_pending state");
|
|
|
|
|
|
|
|
vcpu->nmi_pending = 0;
|
|
|
|
vmm_stat_incr(vm, vcpuid, VCPU_NMI_COUNT, 1);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_get_capability(struct vm *vm, int vcpu, int type, int *retval)
|
|
|
|
{
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (type < 0 || type >= VM_CAP_MAX)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMGETCAP(vm->cookie, vcpu, type, retval));
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_set_capability(struct vm *vm, int vcpu, int type, int val)
|
|
|
|
{
|
|
|
|
if (vcpu < 0 || vcpu >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
if (type < 0 || type >= VM_CAP_MAX)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
return (VMSETCAP(vm->cookie, vcpu, type, val));
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t *
|
|
|
|
vm_guest_msrs(struct vm *vm, int cpu)
|
|
|
|
{
|
|
|
|
return (vm->vcpu[cpu].guest_msrs);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct vlapic *
|
|
|
|
vm_lapic(struct vm *vm, int cpu)
|
|
|
|
{
|
|
|
|
return (vm->vcpu[cpu].vlapic);
|
|
|
|
}
|
|
|
|
|
|
|
|
boolean_t
|
|
|
|
vmm_is_pptdev(int bus, int slot, int func)
|
|
|
|
{
|
2013-02-01 01:16:26 +00:00
|
|
|
int found, i, n;
|
|
|
|
int b, s, f;
|
2011-05-13 04:54:01 +00:00
|
|
|
char *val, *cp, *cp2;
|
|
|
|
|
|
|
|
/*
|
2013-02-01 01:16:26 +00:00
|
|
|
* XXX
|
|
|
|
* The length of an environment variable is limited to 128 bytes which
|
|
|
|
* puts an upper limit on the number of passthru devices that may be
|
|
|
|
* specified using a single environment variable.
|
|
|
|
*
|
|
|
|
* Work around this by scanning multiple environment variable
|
|
|
|
* names instead of a single one - yuck!
|
2011-05-13 04:54:01 +00:00
|
|
|
*/
|
2013-02-01 01:16:26 +00:00
|
|
|
const char *names[] = { "pptdevs", "pptdevs2", "pptdevs3", NULL };
|
|
|
|
|
|
|
|
/* set pptdevs="1/2/3 4/5/6 7/8/9 10/11/12" */
|
2011-05-13 04:54:01 +00:00
|
|
|
found = 0;
|
2013-02-01 01:16:26 +00:00
|
|
|
for (i = 0; names[i] != NULL && !found; i++) {
|
|
|
|
cp = val = getenv(names[i]);
|
|
|
|
while (cp != NULL && *cp != '\0') {
|
|
|
|
if ((cp2 = strchr(cp, ' ')) != NULL)
|
|
|
|
*cp2 = '\0';
|
|
|
|
|
|
|
|
n = sscanf(cp, "%d/%d/%d", &b, &s, &f);
|
|
|
|
if (n == 3 && bus == b && slot == s && func == f) {
|
|
|
|
found = 1;
|
|
|
|
break;
|
|
|
|
}
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2013-02-01 01:16:26 +00:00
|
|
|
if (cp2 != NULL)
|
|
|
|
*cp2++ = ' ';
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2013-02-01 01:16:26 +00:00
|
|
|
cp = cp2;
|
|
|
|
}
|
|
|
|
freeenv(val);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
return (found);
|
|
|
|
}
|
|
|
|
|
|
|
|
void *
|
|
|
|
vm_iommu_domain(struct vm *vm)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (vm->iommu);
|
|
|
|
}
|
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
int
|
|
|
|
vcpu_set_state(struct vm *vm, int vcpuid, enum vcpu_state state)
|
2011-05-13 04:54:01 +00:00
|
|
|
{
|
2012-10-12 18:32:44 +00:00
|
|
|
int error;
|
2011-05-13 04:54:01 +00:00
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
panic("vm_set_run_state: invalid vcpuid %d", vcpuid);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
vcpu_lock(vcpu);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The following state transitions are allowed:
|
|
|
|
* IDLE -> RUNNING -> IDLE
|
|
|
|
* IDLE -> CANNOT_RUN -> IDLE
|
|
|
|
*/
|
|
|
|
if ((vcpu->state == VCPU_IDLE && state != VCPU_IDLE) ||
|
|
|
|
(vcpu->state != VCPU_IDLE && state == VCPU_IDLE)) {
|
|
|
|
error = 0;
|
|
|
|
vcpu->state = state;
|
2011-05-13 04:54:01 +00:00
|
|
|
} else {
|
2012-10-12 18:32:44 +00:00
|
|
|
error = EBUSY;
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
2012-10-12 18:32:44 +00:00
|
|
|
|
|
|
|
vcpu_unlock(vcpu);
|
|
|
|
|
|
|
|
return (error);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
enum vcpu_state
|
2013-04-25 04:56:43 +00:00
|
|
|
vcpu_get_state(struct vm *vm, int vcpuid, int *hostcpu)
|
2011-05-13 04:54:01 +00:00
|
|
|
{
|
|
|
|
struct vcpu *vcpu;
|
2012-10-12 18:32:44 +00:00
|
|
|
enum vcpu_state state;
|
2011-05-13 04:54:01 +00:00
|
|
|
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
panic("vm_get_run_state: invalid vcpuid %d", vcpuid);
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
vcpu_lock(vcpu);
|
|
|
|
state = vcpu->state;
|
2013-04-25 04:56:43 +00:00
|
|
|
if (hostcpu != NULL)
|
|
|
|
*hostcpu = vcpu->hostcpu;
|
2012-10-12 18:32:44 +00:00
|
|
|
vcpu_unlock(vcpu);
|
2011-05-13 04:54:01 +00:00
|
|
|
|
2012-10-12 18:32:44 +00:00
|
|
|
return (state);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
vm_activate_cpu(struct vm *vm, int vcpuid)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (vcpuid >= 0 && vcpuid < VM_MAXCPU)
|
2011-06-28 06:26:03 +00:00
|
|
|
CPU_SET(vcpuid, &vm->active_cpus);
|
2011-05-13 04:54:01 +00:00
|
|
|
}
|
|
|
|
|
2011-06-28 06:26:03 +00:00
|
|
|
cpuset_t
|
2011-05-13 04:54:01 +00:00
|
|
|
vm_active_cpus(struct vm *vm)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (vm->active_cpus);
|
|
|
|
}
|
|
|
|
|
|
|
|
void *
|
|
|
|
vcpu_stats(struct vm *vm, int vcpuid)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (vm->vcpu[vcpuid].stats);
|
|
|
|
}
|
2012-09-25 19:08:51 +00:00
|
|
|
|
|
|
|
int
|
|
|
|
vm_get_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state *state)
|
|
|
|
{
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
*state = vm->vcpu[vcpuid].x2apic_state;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
vm_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state state)
|
|
|
|
{
|
|
|
|
if (vcpuid < 0 || vcpuid >= VM_MAXCPU)
|
|
|
|
return (EINVAL);
|
|
|
|
|
2013-03-16 22:53:05 +00:00
|
|
|
if (state >= X2APIC_STATE_LAST)
|
2012-09-25 19:08:51 +00:00
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
vm->vcpu[vcpuid].x2apic_state = state;
|
|
|
|
|
2012-09-26 00:06:17 +00:00
|
|
|
vlapic_set_x2apic_state(vm, vcpuid, state);
|
|
|
|
|
2012-09-25 19:08:51 +00:00
|
|
|
return (0);
|
|
|
|
}
|
2012-10-12 18:32:44 +00:00
|
|
|
|
|
|
|
void
|
|
|
|
vm_interrupt_hostcpu(struct vm *vm, int vcpuid)
|
|
|
|
{
|
|
|
|
int hostcpu;
|
|
|
|
struct vcpu *vcpu;
|
|
|
|
|
|
|
|
vcpu = &vm->vcpu[vcpuid];
|
|
|
|
|
2012-10-25 04:29:21 +00:00
|
|
|
vcpu_lock(vcpu);
|
2012-10-12 18:32:44 +00:00
|
|
|
hostcpu = vcpu->hostcpu;
|
2012-10-25 04:29:21 +00:00
|
|
|
if (hostcpu == NOCPU) {
|
|
|
|
/*
|
|
|
|
* If the vcpu is 'RUNNING' but without a valid 'hostcpu' then
|
|
|
|
* the host thread must be sleeping waiting for an event to
|
|
|
|
* kick the vcpu out of 'hlt'.
|
|
|
|
*
|
|
|
|
* XXX this is racy because the condition exists right before
|
|
|
|
* and after calling VMRUN() in vm_run(). The wakeup() is
|
|
|
|
* benign in this case.
|
|
|
|
*/
|
|
|
|
if (vcpu->state == VCPU_RUNNING)
|
|
|
|
wakeup_one(vcpu);
|
|
|
|
} else {
|
|
|
|
if (vcpu->state != VCPU_RUNNING)
|
|
|
|
panic("invalid vcpu state %d", vcpu->state);
|
|
|
|
if (hostcpu != curcpu)
|
|
|
|
ipi_cpu(hostcpu, vmm_ipinum);
|
|
|
|
}
|
|
|
|
vcpu_unlock(vcpu);
|
2012-10-12 18:32:44 +00:00
|
|
|
}
|