* kvm-specific. Those are put in the beginning of the list.
*/
-#define KVM_SAVE_MSRS_BEGIN 9
+#define KVM_SAVE_MSRS_BEGIN 10
static u32 msrs_to_save[] = {
MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
MSR_KVM_SYSTEM_TIME_NEW, MSR_KVM_WALL_CLOCK_NEW,
* For each generation, we track the original measured
* nanosecond time, offset, and write, so if TSCs are in
* sync, we can match exact offset, and if not, we can match
- * exact software computaion in compute_guest_tsc()
+ * exact software computation in compute_guest_tsc()
*
* These values are tracked in kvm->arch.cur_xxx variables.
*/
{
gpa_t gpa = data & ~0x3f;
- /* Bits 2:5 are resrved, Should be zero */
+ /* Bits 2:5 are reserved, Should be zero */
if (data & 0x3c)
return 1;
vcpu->arch.time_page =
gfn_to_page(vcpu->kvm, data >> PAGE_SHIFT);
- if (is_error_page(vcpu->arch.time_page)) {
- kvm_release_page_clean(vcpu->arch.time_page);
+ if (is_error_page(vcpu->arch.time_page))
vcpu->arch.time_page = NULL;
- }
+
break;
}
case MSR_KVM_ASYNC_PF_EN:
* Ignore all writes to this no longer documented MSR.
* Writes are only relevant for old K7 processors,
* all pre-dating SVM, but a recommended workaround from
- * AMD for these chips. It is possible to speicify the
+ * AMD for these chips. It is possible to specify the
* affected processor models on the command line, hence
* the need to ignore the workaround.
*/
if (!vcpu->arch.time_page)
return -EINVAL;
src->flags |= PVCLOCK_GUEST_STOPPED;
- mark_page_dirty(vcpu->kvm, vcpu->arch.time >> PAGE_SHIFT);
kvm_make_request(KVM_REQ_CLOCK_UPDATE, vcpu);
return 0;
}
if (!kvm->arch.vpit)
return -ENXIO;
mutex_lock(&kvm->arch.vpit->pit_state.lock);
- kvm->arch.vpit->pit_state.pit_timer.reinject = control->pit_reinject;
+ kvm->arch.vpit->pit_state.reinject = control->pit_reinject;
mutex_unlock(&kvm->arch.vpit->pit_state.lock);
return 0;
}
return r;
}
+int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event)
+{
+ if (!irqchip_in_kernel(kvm))
+ return -ENXIO;
+
+ irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+ irq_event->irq, irq_event->level);
+ return 0;
+}
+
long kvm_arch_vm_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
create_pit_unlock:
mutex_unlock(&kvm->slots_lock);
break;
- case KVM_IRQ_LINE_STATUS:
- case KVM_IRQ_LINE: {
- struct kvm_irq_level irq_event;
-
- r = -EFAULT;
- if (copy_from_user(&irq_event, argp, sizeof irq_event))
- goto out;
- r = -ENXIO;
- if (irqchip_in_kernel(kvm)) {
- __s32 status;
- status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
- irq_event.irq, irq_event.level);
- if (ioctl == KVM_IRQ_LINE_STATUS) {
- r = -EFAULT;
- irq_event.status = status;
- if (copy_to_user(argp, &irq_event,
- sizeof irq_event))
- goto out;
- }
- r = 0;
- }
- break;
- }
case KVM_GET_IRQCHIP: {
/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
struct kvm_irqchip *chip;
goto emul_write;
page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
- if (is_error_page(page)) {
- kvm_release_page_clean(page);
+ if (is_error_page(page))
goto emul_write;
- }
kaddr = kmap_atomic(page);
kaddr += offset_in_page(gpa);
/*
* if emulation was due to access to shadowed page table
- * and it failed try to unshadow page and re-entetr the
+ * and it failed try to unshadow page and re-enter the
* guest to let CPU execute the instruction.
*/
if (kvm_mmu_unprotect_page_virt(vcpu, gva))
/*
* We are here if userspace calls get_regs() in the middle of
* instruction emulation. Registers state needs to be copied
- * back from emulation context to vcpu. Usrapace shouldn't do
+ * back from emulation context to vcpu. Userspace shouldn't do
* that usually, but some bad designed PV devices (vmware
* backdoor interface) need this to work
*/
* as we reset last_host_tsc on all VCPUs to stop this from being
* called multiple times (one for each physical CPU bringup).
*
- * Platforms with unnreliable TSCs don't have to deal with this, they
+ * Platforms with unreliable TSCs don't have to deal with this, they
* will be compensated by the logic in vcpu_load, which sets the TSC to
* catchup mode. This will catchup all VCPUs to real time, but cannot
* guarantee that they stay in perfect synchronization.
{
int i;
- for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
- if (!dont || free->arch.lpage_info[i] != dont->arch.lpage_info[i]) {
- kvm_kvfree(free->arch.lpage_info[i]);
- free->arch.lpage_info[i] = NULL;
+ for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) {
+ if (!dont || free->arch.rmap[i] != dont->arch.rmap[i]) {
+ kvm_kvfree(free->arch.rmap[i]);
+ free->arch.rmap[i] = NULL;
+ }
+ if (i == 0)
+ continue;
+
+ if (!dont || free->arch.lpage_info[i - 1] !=
+ dont->arch.lpage_info[i - 1]) {
+ kvm_kvfree(free->arch.lpage_info[i - 1]);
+ free->arch.lpage_info[i - 1] = NULL;
}
}
}
{
int i;
- for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
+ for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) {
unsigned long ugfn;
int lpages;
- int level = i + 2;
+ int level = i + 1;
lpages = gfn_to_index(slot->base_gfn + npages - 1,
slot->base_gfn, level) + 1;
- slot->arch.lpage_info[i] =
- kvm_kvzalloc(lpages * sizeof(*slot->arch.lpage_info[i]));
- if (!slot->arch.lpage_info[i])
+ slot->arch.rmap[i] =
+ kvm_kvzalloc(lpages * sizeof(*slot->arch.rmap[i]));
+ if (!slot->arch.rmap[i])
+ goto out_free;
+ if (i == 0)
+ continue;
+
+ slot->arch.lpage_info[i - 1] = kvm_kvzalloc(lpages *
+ sizeof(*slot->arch.lpage_info[i - 1]));
+ if (!slot->arch.lpage_info[i - 1])
goto out_free;
if (slot->base_gfn & (KVM_PAGES_PER_HPAGE(level) - 1))
- slot->arch.lpage_info[i][0].write_count = 1;
+ slot->arch.lpage_info[i - 1][0].write_count = 1;
if ((slot->base_gfn + npages) & (KVM_PAGES_PER_HPAGE(level) - 1))
- slot->arch.lpage_info[i][lpages - 1].write_count = 1;
+ slot->arch.lpage_info[i - 1][lpages - 1].write_count = 1;
ugfn = slot->userspace_addr >> PAGE_SHIFT;
/*
* If the gfn and userspace address are not aligned wrt each
unsigned long j;
for (j = 0; j < lpages; ++j)
- slot->arch.lpage_info[i][j].write_count = 1;
+ slot->arch.lpage_info[i - 1][j].write_count = 1;
}
}
return 0;
out_free:
- for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
- kvm_kvfree(slot->arch.lpage_info[i]);
- slot->arch.lpage_info[i] = NULL;
+ for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) {
+ kvm_kvfree(slot->arch.rmap[i]);
+ slot->arch.rmap[i] = NULL;
+ if (i == 0)
+ continue;
+
+ kvm_kvfree(slot->arch.lpage_info[i - 1]);
+ slot->arch.lpage_info[i - 1] = NULL;
}
return -ENOMEM;
}
map_flags = MAP_SHARED | MAP_ANONYMOUS;
/*To keep backward compatibility with older userspace,
- *x86 needs to hanlde !user_alloc case.
+ *x86 needs to handle !user_alloc case.
*/
if (!user_alloc) {
- if (npages && !old.rmap) {
+ if (npages && !old.npages) {
unsigned long userspace_addr;
userspace_addr = vm_mmap(NULL, 0,
int nr_mmu_pages = 0, npages = mem->memory_size >> PAGE_SHIFT;
- if (!user_alloc && !old.user_alloc && old.rmap && !npages) {
+ if (!user_alloc && !old.user_alloc && old.npages && !npages) {
int ret;
ret = vm_munmap(old.userspace_addr,
projects / platform / adaptation / renesas_rcar / renesas_kernel.git / blobdiff