#include <asm/mtrr.h>
#include <asm/mce.h>
#include <asm/i387.h>
+#include <asm/fpu-internal.h> /* Ugh! */
#include <asm/xcr.h>
#include <asm/pvclock.h>
#include <asm/div64.h>
struct kvm *kvm = vcpu->kvm;
u64 offset, ns, elapsed;
unsigned long flags;
- s64 nsdiff;
+ s64 usdiff;
raw_spin_lock_irqsave(&kvm->arch.tsc_write_lock, flags);
offset = kvm_x86_ops->compute_tsc_offset(vcpu, data);
elapsed = ns - kvm->arch.last_tsc_nsec;
/* n.b - signed multiplication and division required */
- nsdiff = data - kvm->arch.last_tsc_write;
+ usdiff = data - kvm->arch.last_tsc_write;
#ifdef CONFIG_X86_64
- nsdiff = (nsdiff * 1000) / vcpu->arch.virtual_tsc_khz;
+ usdiff = (usdiff * 1000) / vcpu->arch.virtual_tsc_khz;
#else
/* do_div() only does unsigned */
asm("idivl %2; xor %%edx, %%edx"
- : "=A"(nsdiff)
- : "A"(nsdiff * 1000), "rm"(vcpu->arch.virtual_tsc_khz));
+ : "=A"(usdiff)
+ : "A"(usdiff * 1000), "rm"(vcpu->arch.virtual_tsc_khz));
#endif
- nsdiff -= elapsed;
- if (nsdiff < 0)
- nsdiff = -nsdiff;
+ do_div(elapsed, 1000);
+ usdiff -= elapsed;
+ if (usdiff < 0)
+ usdiff = -usdiff;
/*
* Special case: TSC write with a small delta (1 second) of virtual
* compensation code attempt to catch up if we fall behind, but
* it's better to try to match offsets from the beginning.
*/
- if (nsdiff < NSEC_PER_SEC &&
+ if (usdiff < USEC_PER_SEC &&
vcpu->arch.virtual_tsc_khz == kvm->arch.last_tsc_khz) {
if (!check_tsc_unstable()) {
offset = kvm->arch.cur_tsc_offset;
*/
vcpu->hv_clock.version += 2;
- shared_kaddr = kmap_atomic(vcpu->time_page, KM_USER0);
+ shared_kaddr = kmap_atomic(vcpu->time_page);
memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock,
sizeof(vcpu->hv_clock));
- kunmap_atomic(shared_kaddr, KM_USER0);
+ kunmap_atomic(shared_kaddr);
mark_page_dirty(v->kvm, vcpu->time >> PAGE_SHIFT);
return 0;
case MSR_K7_HWCR:
data &= ~(u64)0x40; /* ignore flush filter disable */
data &= ~(u64)0x100; /* ignore ignne emulation enable */
+ data &= ~(u64)0x8; /* ignore TLB cache disable */
if (data != 0) {
pr_unimpl(vcpu, "unimplemented HWCR wrmsr: 0x%llx\n",
data);
case MSR_VM_HSAVE_PA:
case MSR_AMD64_PATCH_LOADER:
break;
+ case MSR_NHM_SNB_PKG_CST_CFG_CTL: /* 0xe2 */
case 0x200 ... 0x2ff:
return set_msr_mtrr(vcpu, msr, data);
case MSR_IA32_APICBASE:
case MSR_K8_INT_PENDING_MSG:
case MSR_AMD64_NB_CFG:
case MSR_FAM10H_MMIO_CONF_BASE:
+ case MSR_NHM_SNB_PKG_CST_CFG_CTL: /* 0xe2 */
data = 0;
break;
case MSR_P6_PERFCTR0:
case KVM_CAP_XSAVE:
case KVM_CAP_ASYNC_PF:
case KVM_CAP_GET_TSC_KHZ:
+ case KVM_CAP_PCI_2_3:
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
r = -EEXIST;
if (kvm->arch.vpic)
goto create_irqchip_unlock;
+ r = -EINVAL;
+ if (atomic_read(&kvm->online_vcpus))
+ goto create_irqchip_unlock;
r = -ENOMEM;
vpic = kvm_create_pic(kvm);
if (vpic) {
goto emul_write;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
kaddr += offset_in_page(gpa);
switch (bytes) {
case 1:
default:
BUG();
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
kvm_release_page_dirty(page);
if (!exchanged)
return res;
}
+static void emulator_set_rflags(struct x86_emulate_ctxt *ctxt, ulong val)
+{
+ kvm_set_rflags(emul_to_vcpu(ctxt), val);
+}
+
static int emulator_get_cpl(struct x86_emulate_ctxt *ctxt)
{
return kvm_x86_ops->get_cpl(emul_to_vcpu(ctxt));
.set_idt = emulator_set_idt,
.get_cr = emulator_get_cr,
.set_cr = emulator_set_cr,
+ .set_rflags = emulator_set_rflags,
.cpl = emulator_get_cpl,
.get_dr = emulator_get_dr,
.set_dr = emulator_set_dr,
return 0;
}
-int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason,
- bool has_error_code, u32 error_code)
+int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
+ int reason, bool has_error_code, u32 error_code)
{
struct x86_emulate_ctxt *ctxt = &vcpu->arch.emulate_ctxt;
int ret;
init_emulate_ctxt(vcpu);
- ret = emulator_task_switch(ctxt, tss_selector, reason,
+ ret = emulator_task_switch(ctxt, tss_selector, idt_index, reason,
has_error_code, error_code);
if (ret)
kvm_x86_ops->check_processor_compatibility(rtn);
}
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
+{
+ return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL);
+}
+
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
struct page *page;
put_page(kvm->arch.ept_identity_pagetable);
}
+void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+ struct kvm_memory_slot *dont)
+{
+ int i;
+
+ for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
+ if (!dont || free->arch.lpage_info[i] != dont->arch.lpage_info[i]) {
+ vfree(free->arch.lpage_info[i]);
+ free->arch.lpage_info[i] = NULL;
+ }
+ }
+}
+
+int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+{
+ int i;
+
+ for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
+ unsigned long ugfn;
+ int lpages;
+ int level = i + 2;
+
+ lpages = gfn_to_index(slot->base_gfn + npages - 1,
+ slot->base_gfn, level) + 1;
+
+ slot->arch.lpage_info[i] =
+ vzalloc(lpages * sizeof(*slot->arch.lpage_info[i]));
+ if (!slot->arch.lpage_info[i])
+ goto out_free;
+
+ if (slot->base_gfn & (KVM_PAGES_PER_HPAGE(level) - 1))
+ slot->arch.lpage_info[i][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;
+ ugfn = slot->userspace_addr >> PAGE_SHIFT;
+ /*
+ * If the gfn and userspace address are not aligned wrt each
+ * other, or if explicitly asked to, disable large page
+ * support for this slot
+ */
+ if ((slot->base_gfn ^ ugfn) & (KVM_PAGES_PER_HPAGE(level) - 1) ||
+ !kvm_largepages_enabled()) {
+ unsigned long j;
+
+ for (j = 0; j < lpages; ++j)
+ slot->arch.lpage_info[i][j].write_count = 1;
+ }
+ }
+
+ return 0;
+
+out_free:
+ for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) {
+ vfree(slot->arch.lpage_info[i]);
+ slot->arch.lpage_info[i] = NULL;
+ }
+ return -ENOMEM;
+}
+
int kvm_arch_prepare_memory_region(struct kvm *kvm,
struct kvm_memory_slot *memslot,
struct kvm_memory_slot old,
if (npages && !old.rmap) {
unsigned long userspace_addr;
- down_write(¤t->mm->mmap_sem);
- userspace_addr = do_mmap(NULL, 0,
+ userspace_addr = vm_mmap(NULL, 0,
npages * PAGE_SIZE,
PROT_READ | PROT_WRITE,
map_flags,
0);
- up_write(¤t->mm->mmap_sem);
if (IS_ERR((void *)userspace_addr))
return PTR_ERR((void *)userspace_addr);
if (!user_alloc && !old.user_alloc && old.rmap && !npages) {
int ret;
- down_write(¤t->mm->mmap_sem);
- ret = do_munmap(current->mm, old.userspace_addr,
+ ret = vm_munmap(old.userspace_addr,
old.npages * PAGE_SIZE);
- up_write(¤t->mm->mmap_sem);
if (ret < 0)
printk(KERN_WARNING
"kvm_vm_ioctl_set_memory_region: "
kvm_inject_page_fault(vcpu, &fault);
}
vcpu->arch.apf.halted = false;
+ vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
}
bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu)
projects / linux-flexiantxendom0-3.2.10.git / blobdiff