#include <linux/module.h>
#include <linux/mman.h>
#include <linux/highmem.h>
+#include <linux/iommu.h>
#include <linux/intel-iommu.h>
#include <asm/uaccess.h>
static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
struct kvm_cpuid_entry2 __user *entries);
+struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
+ u32 function, u32 index);
struct kvm_x86_ops *kvm_x86_ops;
EXPORT_SYMBOL_GPL(kvm_x86_ops);
{ "mmu_recycled", VM_STAT(mmu_recycled) },
{ "mmu_cache_miss", VM_STAT(mmu_cache_miss) },
{ "mmu_unsync", VM_STAT(mmu_unsync) },
+ { "mmu_unsync_global", VM_STAT(mmu_unsync_global) },
{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
{ "largepages", VM_STAT(lpages) },
{ NULL }
u32 error_code)
{
++vcpu->stat.pf_guest;
+
if (vcpu->arch.exception.pending) {
if (vcpu->arch.exception.nr == PF_VECTOR) {
printk(KERN_DEBUG "kvm: inject_page_fault:"
kvm_x86_ops->set_cr0(vcpu, cr0);
vcpu->arch.cr0 = cr0;
+ kvm_mmu_sync_global(vcpu);
kvm_mmu_reset_context(vcpu);
return;
}
}
kvm_x86_ops->set_cr4(vcpu, cr4);
vcpu->arch.cr4 = cr4;
+ vcpu->arch.mmu.base_role.cr4_pge = (cr4 & X86_CR4_PGE) && !tdp_enabled;
+ kvm_mmu_sync_global(vcpu);
kvm_mmu_reset_context(vcpu);
}
EXPORT_SYMBOL_GPL(kvm_set_cr4);
}
EXPORT_SYMBOL_GPL(kvm_get_cr8);
+static inline u32 bit(int bitno)
+{
+ return 1 << (bitno & 31);
+}
+
/*
* List of msr numbers which we expose to userspace through KVM_GET_MSRS
* and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST.
MSR_CSTAR, MSR_KERNEL_GS_BASE, MSR_SYSCALL_MASK, MSR_LSTAR,
#endif
MSR_IA32_TIME_STAMP_COUNTER, MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
- MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT
+ MSR_IA32_PERF_STATUS, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA
};
static unsigned num_msrs_to_save;
return;
}
+ if (efer & EFER_SVME) {
+ struct kvm_cpuid_entry2 *feat;
+
+ feat = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
+ if (!feat || !(feat->ecx & bit(X86_FEATURE_SVM))) {
+ printk(KERN_DEBUG "set_efer: #GP, enable SVM w/o SVM\n");
+ kvm_inject_gp(vcpu, 0);
+ return;
+ }
+ }
+
kvm_x86_ops->set_efer(vcpu, efer);
efer &= ~EFER_LMA;
break;
case MSR_IA32_UCODE_REV:
case MSR_IA32_UCODE_WRITE:
+ case MSR_VM_HSAVE_PA:
break;
case 0x200 ... 0x2ff:
return set_msr_mtrr(vcpu, msr, data);
case MSR_IA32_LASTBRANCHTOIP:
case MSR_IA32_LASTINTFROMIP:
case MSR_IA32_LASTINTTOIP:
+ case MSR_VM_HSAVE_PA:
data = 0;
break;
case MSR_MTRRcap:
case KVM_CAP_IRQCHIP:
case KVM_CAP_HLT:
case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
- case KVM_CAP_USER_MEMORY:
case KVM_CAP_SET_TSS_ADDR:
case KVM_CAP_EXT_CPUID:
- case KVM_CAP_CLOCKSOURCE:
case KVM_CAP_PIT:
case KVM_CAP_NOP_IO_DELAY:
case KVM_CAP_MP_STATE:
case KVM_CAP_SYNC_MMU:
+ case KVM_CAP_REINJECT_CONTROL:
r = 1;
break;
case KVM_CAP_COALESCED_MMIO:
r = !tdp_enabled;
break;
case KVM_CAP_IOMMU:
- r = intel_iommu_found();
+ r = iommu_found();
+ break;
+ case KVM_CAP_CLOCKSOURCE:
+ r = boot_cpu_has(X86_FEATURE_CONSTANT_TSC);
break;
default:
r = 0;
if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
goto out;
r = kvm_dev_ioctl_get_supported_cpuid(&cpuid,
- cpuid_arg->entries);
+ cpuid_arg->entries);
if (r)
goto out;
}
static int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
- struct kvm_cpuid2 *cpuid,
- struct kvm_cpuid_entry2 __user *entries)
+ struct kvm_cpuid2 *cpuid,
+ struct kvm_cpuid_entry2 __user *entries)
{
int r;
}
static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
- struct kvm_cpuid2 *cpuid,
- struct kvm_cpuid_entry2 __user *entries)
+ struct kvm_cpuid2 *cpuid,
+ struct kvm_cpuid_entry2 __user *entries)
{
int r;
goto out;
r = -EFAULT;
if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+ vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
goto out;
return 0;
return r;
}
-static inline u32 bit(int bitno)
-{
- return 1 << (bitno & 31);
-}
-
static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function,
- u32 index)
+ u32 index)
{
entry->function = function;
entry->index = index;
cpuid_count(entry->function, entry->index,
- &entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
+ &entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
entry->flags = 0;
}
const u32 kvm_supported_word3_x86_features =
bit(X86_FEATURE_XMM3) | bit(X86_FEATURE_CX16);
const u32 kvm_supported_word6_x86_features =
- bit(X86_FEATURE_LAHF_LM) | bit(X86_FEATURE_CMP_LEGACY);
+ bit(X86_FEATURE_LAHF_LM) | bit(X86_FEATURE_CMP_LEGACY) |
+ bit(X86_FEATURE_SVM);
- /* all func 2 cpuid_count() should be called on the same cpu */
+ /* all calls to cpuid_count() should be made on the same cpu */
get_cpu();
do_cpuid_1_ent(entry, function, index);
++*nent;
int t, times = entry->eax & 0xff;
entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+ entry->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
for (t = 1; t < times && *nent < maxnent; ++t) {
do_cpuid_1_ent(&entry[t], function, 0);
entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
}
static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
- struct kvm_cpuid_entry2 __user *entries)
+ struct kvm_cpuid_entry2 __user *entries)
{
struct kvm_cpuid_entry2 *cpuid_entries;
int limit, nent = 0, r = -E2BIG;
limit = cpuid_entries[0].eax;
for (func = 1; func <= limit && nent < cpuid->nent; ++func)
do_cpuid_ent(&cpuid_entries[nent], func, 0,
- &nent, cpuid->nent);
+ &nent, cpuid->nent);
r = -E2BIG;
if (nent >= cpuid->nent)
goto out_free;
limit = cpuid_entries[nent - 1].eax;
for (func = 0x80000001; func <= limit && nent < cpuid->nent; ++func)
do_cpuid_ent(&cpuid_entries[nent], func, 0,
- &nent, cpuid->nent);
+ &nent, cpuid->nent);
r = -EFAULT;
if (copy_to_user(entries, cpuid_entries,
- nent * sizeof(struct kvm_cpuid_entry2)))
+ nent * sizeof(struct kvm_cpuid_entry2)))
goto out_free;
cpuid->nent = nent;
r = 0;
if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
goto out;
r = kvm_vcpu_ioctl_set_cpuid2(vcpu, &cpuid,
- cpuid_arg->entries);
+ cpuid_arg->entries);
if (r)
goto out;
break;
if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
goto out;
r = kvm_vcpu_ioctl_get_cpuid2(vcpu, &cpuid,
- cpuid_arg->entries);
+ cpuid_arg->entries);
if (r)
goto out;
r = -EFAULT;
return r;
}
+static int kvm_vm_ioctl_reinject(struct kvm *kvm,
+ struct kvm_reinject_control *control)
+{
+ if (!kvm->arch.vpit)
+ return -ENXIO;
+ kvm->arch.vpit->pit_state.pit_timer.reinject = control->pit_reinject;
+ return 0;
+}
+
/*
* Get (and clear) the dirty memory log for a memory slot.
*/
}
} else
goto out;
+ r = kvm_setup_default_irq_routing(kvm);
+ if (r) {
+ kfree(kvm->arch.vpic);
+ kfree(kvm->arch.vioapic);
+ goto out;
+ }
break;
case KVM_CREATE_PIT:
+ mutex_lock(&kvm->lock);
+ r = -EEXIST;
+ if (kvm->arch.vpit)
+ goto create_pit_unlock;
r = -ENOMEM;
kvm->arch.vpit = kvm_create_pit(kvm);
if (kvm->arch.vpit)
r = 0;
+ create_pit_unlock:
+ mutex_unlock(&kvm->lock);
break;
case KVM_IRQ_LINE: {
struct kvm_irq_level irq_event;
r = 0;
break;
}
+ case KVM_REINJECT_CONTROL: {
+ struct kvm_reinject_control control;
+ r = -EFAULT;
+ if (copy_from_user(&control, argp, sizeof(control)))
+ goto out;
+ r = kvm_vm_ioctl_reinject(kvm, &control);
+ if (r)
+ goto out;
+ r = 0;
+ break;
+ }
default:
;
}
return dev;
}
-int emulator_read_std(unsigned long addr,
- void *val,
- unsigned int bytes,
- struct kvm_vcpu *vcpu)
+int kvm_read_guest_virt(gva_t addr, void *val, unsigned int bytes,
+ struct kvm_vcpu *vcpu)
{
void *data = val;
int r = X86EMUL_CONTINUE;
while (bytes) {
gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
unsigned offset = addr & (PAGE_SIZE-1);
- unsigned tocopy = min(bytes, (unsigned)PAGE_SIZE - offset);
+ unsigned toread = min(bytes, (unsigned)PAGE_SIZE - offset);
int ret;
if (gpa == UNMAPPED_GVA) {
r = X86EMUL_PROPAGATE_FAULT;
goto out;
}
- ret = kvm_read_guest(vcpu->kvm, gpa, data, tocopy);
+ ret = kvm_read_guest(vcpu->kvm, gpa, data, toread);
if (ret < 0) {
r = X86EMUL_UNHANDLEABLE;
goto out;
}
- bytes -= tocopy;
- data += tocopy;
- addr += tocopy;
+ bytes -= toread;
+ data += toread;
+ addr += toread;
}
out:
return r;
}
-EXPORT_SYMBOL_GPL(emulator_read_std);
+
+int kvm_write_guest_virt(gva_t addr, void *val, unsigned int bytes,
+ struct kvm_vcpu *vcpu)
+{
+ void *data = val;
+ int r = X86EMUL_CONTINUE;
+
+ while (bytes) {
+ gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
+ unsigned offset = addr & (PAGE_SIZE-1);
+ unsigned towrite = min(bytes, (unsigned)PAGE_SIZE - offset);
+ int ret;
+
+ if (gpa == UNMAPPED_GVA) {
+ r = X86EMUL_PROPAGATE_FAULT;
+ goto out;
+ }
+ ret = kvm_write_guest(vcpu->kvm, gpa, data, towrite);
+ if (ret < 0) {
+ r = X86EMUL_UNHANDLEABLE;
+ goto out;
+ }
+
+ bytes -= towrite;
+ data += towrite;
+ addr += towrite;
+ }
+out:
+ return r;
+}
+
static int emulator_read_emulated(unsigned long addr,
void *val,
if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
goto mmio;
- if (emulator_read_std(addr, val, bytes, vcpu)
- == X86EMUL_CONTINUE)
+ if (kvm_read_guest_virt(addr, val, bytes, vcpu)
+ == X86EMUL_CONTINUE)
return X86EMUL_CONTINUE;
if (gpa == UNMAPPED_GVA)
return X86EMUL_PROPAGATE_FAULT;
ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
if (ret < 0)
return 0;
- kvm_mmu_pte_write(vcpu, gpa, val, bytes);
+ kvm_mmu_pte_write(vcpu, gpa, val, bytes, 1);
return 1;
}
rip_linear = rip + get_segment_base(vcpu, VCPU_SREG_CS);
- emulator_read_std(rip_linear, (void *)opcodes, 4, vcpu);
+ kvm_read_guest_virt(rip_linear, (void *)opcodes, 4, vcpu);
printk(KERN_ERR "emulation failed (%s) rip %lx %02x %02x %02x %02x\n",
context, rip, opcodes[0], opcodes[1], opcodes[2], opcodes[3]);
EXPORT_SYMBOL_GPL(kvm_report_emulation_failure);
static struct x86_emulate_ops emulate_ops = {
- .read_std = emulator_read_std,
+ .read_std = kvm_read_guest_virt,
.read_emulated = emulator_read_emulated,
.write_emulated = emulator_write_emulated,
.cmpxchg_emulated = emulator_cmpxchg_emulated,
}
EXPORT_SYMBOL_GPL(emulate_instruction);
-static void free_pio_guest_pages(struct kvm_vcpu *vcpu)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(vcpu->arch.pio.guest_pages); ++i)
- if (vcpu->arch.pio.guest_pages[i]) {
- kvm_release_page_dirty(vcpu->arch.pio.guest_pages[i]);
- vcpu->arch.pio.guest_pages[i] = NULL;
- }
-}
-
static int pio_copy_data(struct kvm_vcpu *vcpu)
{
void *p = vcpu->arch.pio_data;
- void *q;
+ gva_t q = vcpu->arch.pio.guest_gva;
unsigned bytes;
- int nr_pages = vcpu->arch.pio.guest_pages[1] ? 2 : 1;
+ int ret;
- q = vmap(vcpu->arch.pio.guest_pages, nr_pages, VM_READ|VM_WRITE,
- PAGE_KERNEL);
- if (!q) {
- free_pio_guest_pages(vcpu);
- return -ENOMEM;
- }
- q += vcpu->arch.pio.guest_page_offset;
bytes = vcpu->arch.pio.size * vcpu->arch.pio.cur_count;
if (vcpu->arch.pio.in)
- memcpy(q, p, bytes);
+ ret = kvm_write_guest_virt(q, p, bytes, vcpu);
else
- memcpy(p, q, bytes);
- q -= vcpu->arch.pio.guest_page_offset;
- vunmap(q);
- free_pio_guest_pages(vcpu);
- return 0;
+ ret = kvm_read_guest_virt(q, p, bytes, vcpu);
+ return ret;
}
int complete_pio(struct kvm_vcpu *vcpu)
vcpu->arch.pio.in = in;
vcpu->arch.pio.string = 0;
vcpu->arch.pio.down = 0;
- vcpu->arch.pio.guest_page_offset = 0;
vcpu->arch.pio.rep = 0;
if (vcpu->run->io.direction == KVM_EXIT_IO_IN)
gva_t address, int rep, unsigned port)
{
unsigned now, in_page;
- int i, ret = 0;
- int nr_pages = 1;
- struct page *page;
+ int ret = 0;
struct kvm_io_device *pio_dev;
vcpu->run->exit_reason = KVM_EXIT_IO;
vcpu->arch.pio.in = in;
vcpu->arch.pio.string = 1;
vcpu->arch.pio.down = down;
- vcpu->arch.pio.guest_page_offset = offset_in_page(address);
vcpu->arch.pio.rep = rep;
if (vcpu->run->io.direction == KVM_EXIT_IO_IN)
else
in_page = offset_in_page(address) + size;
now = min(count, (unsigned long)in_page / size);
- if (!now) {
- /*
- * String I/O straddles page boundary. Pin two guest pages
- * so that we satisfy atomicity constraints. Do just one
- * transaction to avoid complexity.
- */
- nr_pages = 2;
+ if (!now)
now = 1;
- }
if (down) {
/*
* String I/O in reverse. Yuck. Kill the guest, fix later.
if (vcpu->arch.pio.cur_count == vcpu->arch.pio.count)
kvm_x86_ops->skip_emulated_instruction(vcpu);
- for (i = 0; i < nr_pages; ++i) {
- page = gva_to_page(vcpu, address + i * PAGE_SIZE);
- vcpu->arch.pio.guest_pages[i] = page;
- if (!page) {
- kvm_inject_gp(vcpu, 0);
- free_pio_guest_pages(vcpu);
- return 1;
- }
- }
+ vcpu->arch.pio.guest_gva = address;
pio_dev = vcpu_find_pio_dev(vcpu, port,
vcpu->arch.pio.cur_count,
if (!vcpu->arch.pio.in) {
/* string PIO write */
ret = pio_copy_data(vcpu);
- if (ret >= 0 && pio_dev) {
+ if (ret == X86EMUL_PROPAGATE_FAULT) {
+ kvm_inject_gp(vcpu, 0);
+ return 1;
+ }
+ if (ret == 0 && pio_dev) {
pio_string_write(pio_dev, vcpu);
complete_pio(vcpu);
if (vcpu->arch.pio.count == 0)
e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
/* when no next entry is found, the current entry[i] is reselected */
- for (j = i + 1; j == i; j = (j + 1) % nent) {
+ for (j = i + 1; ; j = (j + 1) % nent) {
struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
if (ej->function == e->function) {
ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
if ((e->flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX) && e->index != index)
return 0;
if ((e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC) &&
- !(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
+ !(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
return 0;
return 1;
}
-void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
+struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
+ u32 function, u32 index)
{
int i;
- u32 function, index;
- struct kvm_cpuid_entry2 *e, *best;
+ struct kvm_cpuid_entry2 *best = NULL;
- function = kvm_register_read(vcpu, VCPU_REGS_RAX);
- index = kvm_register_read(vcpu, VCPU_REGS_RCX);
- kvm_register_write(vcpu, VCPU_REGS_RAX, 0);
- kvm_register_write(vcpu, VCPU_REGS_RBX, 0);
- kvm_register_write(vcpu, VCPU_REGS_RCX, 0);
- kvm_register_write(vcpu, VCPU_REGS_RDX, 0);
- best = NULL;
for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+ struct kvm_cpuid_entry2 *e;
+
e = &vcpu->arch.cpuid_entries[i];
if (is_matching_cpuid_entry(e, function, index)) {
if (e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC)
if (!best || e->function > best->function)
best = e;
}
+ return best;
+}
+
+void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
+{
+ u32 function, index;
+ struct kvm_cpuid_entry2 *best;
+
+ function = kvm_register_read(vcpu, VCPU_REGS_RAX);
+ index = kvm_register_read(vcpu, VCPU_REGS_RCX);
+ kvm_register_write(vcpu, VCPU_REGS_RAX, 0);
+ kvm_register_write(vcpu, VCPU_REGS_RBX, 0);
+ kvm_register_write(vcpu, VCPU_REGS_RCX, 0);
+ kvm_register_write(vcpu, VCPU_REGS_RDX, 0);
+ best = kvm_find_cpuid_entry(vcpu, function, index);
if (best) {
kvm_register_write(vcpu, VCPU_REGS_RAX, best->eax);
kvm_register_write(vcpu, VCPU_REGS_RBX, best->ebx);
(kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF));
}
-/*
- * Check if userspace requested a NMI window, and that the NMI window
- * is open.
- *
- * No need to exit to userspace if we already have a NMI queued.
- */
-static int dm_request_for_nmi_injection(struct kvm_vcpu *vcpu,
- struct kvm_run *kvm_run)
-{
- return (!vcpu->arch.nmi_pending &&
- kvm_run->request_nmi_window &&
- vcpu->arch.nmi_window_open);
-}
-
static void post_kvm_run_save(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run)
{
kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
kvm_run->cr8 = kvm_get_cr8(vcpu);
kvm_run->apic_base = kvm_get_apic_base(vcpu);
- if (irqchip_in_kernel(vcpu->kvm)) {
+ if (irqchip_in_kernel(vcpu->kvm))
kvm_run->ready_for_interrupt_injection = 1;
- kvm_run->ready_for_nmi_injection = 1;
- } else {
+ else
kvm_run->ready_for_interrupt_injection =
(vcpu->arch.interrupt_window_open &&
vcpu->arch.irq_summary == 0);
- kvm_run->ready_for_nmi_injection =
- (vcpu->arch.nmi_window_open &&
- vcpu->arch.nmi_pending == 0);
- }
}
static void vapic_enter(struct kvm_vcpu *vcpu)
goto out;
}
- if (vcpu->guest_debug.enabled)
- kvm_x86_ops->guest_debug_pre(vcpu);
-
vcpu->guest_mode = 1;
/*
* Make sure that guest_mode assignment won't happen after
kvm_guest_enter();
+ get_debugreg(vcpu->arch.host_dr6, 6);
+ get_debugreg(vcpu->arch.host_dr7, 7);
+ if (unlikely(vcpu->arch.switch_db_regs)) {
+ get_debugreg(vcpu->arch.host_db[0], 0);
+ get_debugreg(vcpu->arch.host_db[1], 1);
+ get_debugreg(vcpu->arch.host_db[2], 2);
+ get_debugreg(vcpu->arch.host_db[3], 3);
+
+ set_debugreg(0, 7);
+ set_debugreg(vcpu->arch.eff_db[0], 0);
+ set_debugreg(vcpu->arch.eff_db[1], 1);
+ set_debugreg(vcpu->arch.eff_db[2], 2);
+ set_debugreg(vcpu->arch.eff_db[3], 3);
+ }
KVMTRACE_0D(VMENTRY, vcpu, entryexit);
kvm_x86_ops->run(vcpu, kvm_run);
+ if (unlikely(vcpu->arch.switch_db_regs)) {
+ set_debugreg(0, 7);
+ set_debugreg(vcpu->arch.host_db[0], 0);
+ set_debugreg(vcpu->arch.host_db[1], 1);
+ set_debugreg(vcpu->arch.host_db[2], 2);
+ set_debugreg(vcpu->arch.host_db[3], 3);
+ }
+ set_debugreg(vcpu->arch.host_dr6, 6);
+ set_debugreg(vcpu->arch.host_dr7, 7);
+
vcpu->guest_mode = 0;
local_irq_enable();
}
if (r > 0) {
- if (dm_request_for_nmi_injection(vcpu, kvm_run)) {
- r = -EINTR;
- kvm_run->exit_reason = KVM_EXIT_NMI;
- ++vcpu->stat.request_nmi_exits;
- }
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
r = -EINTR;
kvm_run->exit_reason = KVM_EXIT_INTR;
/*
* Don't leak debug flags in case they were set for guest debugging
*/
- if (vcpu->guest_debug.enabled && vcpu->guest_debug.singlestep)
+ if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
regs->rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF);
vcpu_put(vcpu);
return 0;
}
-int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
- struct kvm_debug_guest *dbg)
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+ struct kvm_guest_debug *dbg)
{
- int r;
+ int i, r;
vcpu_load(vcpu);
+ if ((dbg->control & (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP)) ==
+ (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP)) {
+ for (i = 0; i < KVM_NR_DB_REGS; ++i)
+ vcpu->arch.eff_db[i] = dbg->arch.debugreg[i];
+ vcpu->arch.switch_db_regs =
+ (dbg->arch.debugreg[7] & DR7_BP_EN_MASK);
+ } else {
+ for (i = 0; i < KVM_NR_DB_REGS; i++)
+ vcpu->arch.eff_db[i] = vcpu->arch.db[i];
+ vcpu->arch.switch_db_regs = (vcpu->arch.dr7 & DR7_BP_EN_MASK);
+ }
+
r = kvm_x86_ops->set_guest_debug(vcpu, dbg);
+ if (dbg->control & KVM_GUESTDBG_INJECT_DB)
+ kvm_queue_exception(vcpu, DB_VECTOR);
+ else if (dbg->control & KVM_GUESTDBG_INJECT_BP)
+ kvm_queue_exception(vcpu, BP_VECTOR);
+
vcpu_put(vcpu);
return r;
vcpu->arch.nmi_pending = false;
vcpu->arch.nmi_injected = false;
+ vcpu->arch.switch_db_regs = 0;
+ memset(vcpu->arch.db, 0, sizeof(vcpu->arch.db));
+ vcpu->arch.dr6 = DR6_FIXED_1;
+ vcpu->arch.dr7 = DR7_FIXED_1;
+
return kvm_x86_ops->vcpu_reset(vcpu);
}
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
+ INIT_LIST_HEAD(&kvm->arch.oos_global_pages);
INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
/* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
+ rdtscll(kvm->arch.vm_init_tsc);
+
return kvm;
}
}
-void kvm_arch_destroy_vm(struct kvm *kvm)
+void kvm_arch_sync_events(struct kvm *kvm)
{
kvm_free_all_assigned_devices(kvm);
+}
+
+void kvm_arch_destroy_vm(struct kvm *kvm)
+{
kvm_iommu_unmap_guest(kvm);
kvm_free_pit(kvm);
kfree(kvm->arch.vpic);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff