Commit b0d8aa08 authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm

* 'kvm-updates-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: ppc: fix invalidation of large guest pages
  KVM: s390: Fix possible host kernel bug on lctl(g) handling
  KVM: s390: Fix instruction naming for lctlg
  KVM: s390: Fix program check on interrupt delivery handling
  KVM: s390: Change guestaddr type in gaccess
  KVM: s390: Fix guest kconfig
  KVM: s390: Advertise KVM_CAP_USER_MEMORY
  KVM: ia64: Fix irq disabling leak in error handling code
  KVM: VMX: Fix undefined beaviour of EPT after reload kvm-intel.ko
  KVM: VMX: Fix bypass_guest_pf enabling when disable EPT in module parameter
  KVM: task switch: translate guest segment limit to virt-extension byte granular field
  KVM: Avoid instruction emulation when event delivery is pending
  KVM: task switch: use seg regs provided by subarch instead of reading from GDT
  KVM: task switch: segment base is linear address
  KVM: SVM: allow enabling/disabling NPT by reloading only the architecture module
parents 6948385c cc04454f
...@@ -125,9 +125,9 @@ void kvm_arch_hardware_enable(void *garbage) ...@@ -125,9 +125,9 @@ void kvm_arch_hardware_enable(void *garbage)
PAGE_KERNEL)); PAGE_KERNEL));
local_irq_save(saved_psr); local_irq_save(saved_psr);
slot = ia64_itr_entry(0x3, KVM_VMM_BASE, pte, KVM_VMM_SHIFT); slot = ia64_itr_entry(0x3, KVM_VMM_BASE, pte, KVM_VMM_SHIFT);
local_irq_restore(saved_psr);
if (slot < 0) if (slot < 0)
return; return;
local_irq_restore(saved_psr);
spin_lock(&vp_lock); spin_lock(&vp_lock);
status = ia64_pal_vp_init_env(kvm_vsa_base ? status = ia64_pal_vp_init_env(kvm_vsa_base ?
...@@ -160,9 +160,9 @@ void kvm_arch_hardware_disable(void *garbage) ...@@ -160,9 +160,9 @@ void kvm_arch_hardware_disable(void *garbage)
local_irq_save(saved_psr); local_irq_save(saved_psr);
slot = ia64_itr_entry(0x3, KVM_VMM_BASE, pte, KVM_VMM_SHIFT); slot = ia64_itr_entry(0x3, KVM_VMM_BASE, pte, KVM_VMM_SHIFT);
local_irq_restore(saved_psr);
if (slot < 0) if (slot < 0)
return; return;
local_irq_restore(saved_psr);
status = ia64_pal_vp_exit_env(host_iva); status = ia64_pal_vp_exit_env(host_iva);
if (status) if (status)
...@@ -1253,6 +1253,7 @@ static int vti_vcpu_setup(struct kvm_vcpu *vcpu, int id) ...@@ -1253,6 +1253,7 @@ static int vti_vcpu_setup(struct kvm_vcpu *vcpu, int id)
uninit: uninit:
kvm_vcpu_uninit(vcpu); kvm_vcpu_uninit(vcpu);
fail: fail:
local_irq_restore(psr);
return r; return r;
} }
......
...@@ -177,7 +177,8 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn, u64 asid, ...@@ -177,7 +177,8 @@ void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn, u64 asid,
vcpu->arch.msr & MSR_PR); vcpu->arch.msr & MSR_PR);
} }
void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid) void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
gva_t eend, u32 asid)
{ {
unsigned int pid = asid & 0xff; unsigned int pid = asid & 0xff;
int i; int i;
...@@ -191,7 +192,7 @@ void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid) ...@@ -191,7 +192,7 @@ void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid)
if (!get_tlb_v(stlbe)) if (!get_tlb_v(stlbe))
continue; continue;
if (eaddr < get_tlb_eaddr(stlbe)) if (eend < get_tlb_eaddr(stlbe))
continue; continue;
if (eaddr > get_tlb_end(stlbe)) if (eaddr > get_tlb_end(stlbe))
......
...@@ -137,7 +137,7 @@ static int kvmppc_emul_tlbwe(struct kvm_vcpu *vcpu, u32 inst) ...@@ -137,7 +137,7 @@ static int kvmppc_emul_tlbwe(struct kvm_vcpu *vcpu, u32 inst)
if (tlbe->word0 & PPC44x_TLB_VALID) { if (tlbe->word0 & PPC44x_TLB_VALID) {
eaddr = get_tlb_eaddr(tlbe); eaddr = get_tlb_eaddr(tlbe);
asid = (tlbe->word0 & PPC44x_TLB_TS) | tlbe->tid; asid = (tlbe->word0 & PPC44x_TLB_TS) | tlbe->tid;
kvmppc_mmu_invalidate(vcpu, eaddr, asid); kvmppc_mmu_invalidate(vcpu, eaddr, get_tlb_end(tlbe), asid);
} }
switch (ws) { switch (ws) {
......
...@@ -18,11 +18,11 @@ ...@@ -18,11 +18,11 @@
#include <asm/uaccess.h> #include <asm/uaccess.h>
static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu, static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
u64 guestaddr) unsigned long guestaddr)
{ {
u64 prefix = vcpu->arch.sie_block->prefix; unsigned long prefix = vcpu->arch.sie_block->prefix;
u64 origin = vcpu->kvm->arch.guest_origin; unsigned long origin = vcpu->kvm->arch.guest_origin;
u64 memsize = vcpu->kvm->arch.guest_memsize; unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestaddr < 2 * PAGE_SIZE) if (guestaddr < 2 * PAGE_SIZE)
guestaddr += prefix; guestaddr += prefix;
...@@ -37,7 +37,7 @@ static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu, ...@@ -37,7 +37,7 @@ static inline void __user *__guestaddr_to_user(struct kvm_vcpu *vcpu,
return (void __user *) guestaddr; return (void __user *) guestaddr;
} }
static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int get_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u64 *result) u64 *result)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -47,10 +47,10 @@ static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -47,10 +47,10 @@ static inline int get_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
if (IS_ERR((void __force *) uptr)) if (IS_ERR((void __force *) uptr))
return PTR_ERR((void __force *) uptr); return PTR_ERR((void __force *) uptr);
return get_user(*result, (u64 __user *) uptr); return get_user(*result, (unsigned long __user *) uptr);
} }
static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int get_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u32 *result) u32 *result)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -63,7 +63,7 @@ static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -63,7 +63,7 @@ static inline int get_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u32 __user *) uptr); return get_user(*result, (u32 __user *) uptr);
} }
static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int get_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u16 *result) u16 *result)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -76,7 +76,7 @@ static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -76,7 +76,7 @@ static inline int get_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u16 __user *) uptr); return get_user(*result, (u16 __user *) uptr);
} }
static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int get_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u8 *result) u8 *result)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -87,7 +87,7 @@ static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -87,7 +87,7 @@ static inline int get_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
return get_user(*result, (u8 __user *) uptr); return get_user(*result, (u8 __user *) uptr);
} }
static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int put_guest_u64(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u64 value) u64 value)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -100,7 +100,7 @@ static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -100,7 +100,7 @@ static inline int put_guest_u64(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u64 __user *) uptr); return put_user(value, (u64 __user *) uptr);
} }
static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int put_guest_u32(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u32 value) u32 value)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -113,7 +113,7 @@ static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -113,7 +113,7 @@ static inline int put_guest_u32(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u32 __user *) uptr); return put_user(value, (u32 __user *) uptr);
} }
static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int put_guest_u16(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u16 value) u16 value)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -126,7 +126,7 @@ static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -126,7 +126,7 @@ static inline int put_guest_u16(struct kvm_vcpu *vcpu, u64 guestaddr,
return put_user(value, (u16 __user *) uptr); return put_user(value, (u16 __user *) uptr);
} }
static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr, static inline int put_guest_u8(struct kvm_vcpu *vcpu, unsigned long guestaddr,
u8 value) u8 value)
{ {
void __user *uptr = __guestaddr_to_user(vcpu, guestaddr); void __user *uptr = __guestaddr_to_user(vcpu, guestaddr);
...@@ -138,7 +138,8 @@ static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr, ...@@ -138,7 +138,8 @@ static inline int put_guest_u8(struct kvm_vcpu *vcpu, u64 guestaddr,
} }
static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest, static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu,
unsigned long guestdest,
const void *from, unsigned long n) const void *from, unsigned long n)
{ {
int rc; int rc;
...@@ -153,12 +154,12 @@ static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest, ...@@ -153,12 +154,12 @@ static inline int __copy_to_guest_slow(struct kvm_vcpu *vcpu, u64 guestdest,
return 0; return 0;
} }
static inline int copy_to_guest(struct kvm_vcpu *vcpu, u64 guestdest, static inline int copy_to_guest(struct kvm_vcpu *vcpu, unsigned long guestdest,
const void *from, unsigned long n) const void *from, unsigned long n)
{ {
u64 prefix = vcpu->arch.sie_block->prefix; unsigned long prefix = vcpu->arch.sie_block->prefix;
u64 origin = vcpu->kvm->arch.guest_origin; unsigned long origin = vcpu->kvm->arch.guest_origin;
u64 memsize = vcpu->kvm->arch.guest_memsize; unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if ((guestdest < 2 * PAGE_SIZE) && (guestdest + n > 2 * PAGE_SIZE)) if ((guestdest < 2 * PAGE_SIZE) && (guestdest + n > 2 * PAGE_SIZE))
goto slowpath; goto slowpath;
...@@ -189,7 +190,8 @@ static inline int copy_to_guest(struct kvm_vcpu *vcpu, u64 guestdest, ...@@ -189,7 +190,8 @@ static inline int copy_to_guest(struct kvm_vcpu *vcpu, u64 guestdest,
} }
static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to, static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
u64 guestsrc, unsigned long n) unsigned long guestsrc,
unsigned long n)
{ {
int rc; int rc;
unsigned long i; unsigned long i;
...@@ -204,11 +206,11 @@ static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to, ...@@ -204,11 +206,11 @@ static inline int __copy_from_guest_slow(struct kvm_vcpu *vcpu, void *to,
} }
static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to, static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
u64 guestsrc, unsigned long n) unsigned long guestsrc, unsigned long n)
{ {
u64 prefix = vcpu->arch.sie_block->prefix; unsigned long prefix = vcpu->arch.sie_block->prefix;
u64 origin = vcpu->kvm->arch.guest_origin; unsigned long origin = vcpu->kvm->arch.guest_origin;
u64 memsize = vcpu->kvm->arch.guest_memsize; unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE)) if ((guestsrc < 2 * PAGE_SIZE) && (guestsrc + n > 2 * PAGE_SIZE))
goto slowpath; goto slowpath;
...@@ -238,11 +240,12 @@ static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to, ...@@ -238,11 +240,12 @@ static inline int copy_from_guest(struct kvm_vcpu *vcpu, void *to,
return __copy_from_guest_slow(vcpu, to, guestsrc, n); return __copy_from_guest_slow(vcpu, to, guestsrc, n);
} }
static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest, static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu,
unsigned long guestdest,
const void *from, unsigned long n) const void *from, unsigned long n)
{ {
u64 origin = vcpu->kvm->arch.guest_origin; unsigned long origin = vcpu->kvm->arch.guest_origin;
u64 memsize = vcpu->kvm->arch.guest_memsize; unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestdest + n > memsize) if (guestdest + n > memsize)
return -EFAULT; return -EFAULT;
...@@ -256,10 +259,11 @@ static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest, ...@@ -256,10 +259,11 @@ static inline int copy_to_guest_absolute(struct kvm_vcpu *vcpu, u64 guestdest,
} }
static inline int copy_from_guest_absolute(struct kvm_vcpu *vcpu, void *to, static inline int copy_from_guest_absolute(struct kvm_vcpu *vcpu, void *to,
u64 guestsrc, unsigned long n) unsigned long guestsrc,
unsigned long n)
{ {
u64 origin = vcpu->kvm->arch.guest_origin; unsigned long origin = vcpu->kvm->arch.guest_origin;
u64 memsize = vcpu->kvm->arch.guest_memsize; unsigned long memsize = vcpu->kvm->arch.guest_memsize;
if (guestsrc + n > memsize) if (guestsrc + n > memsize)
return -EFAULT; return -EFAULT;
......
...@@ -20,7 +20,7 @@ ...@@ -20,7 +20,7 @@
#include "kvm-s390.h" #include "kvm-s390.h"
#include "gaccess.h" #include "gaccess.h"
static int handle_lctg(struct kvm_vcpu *vcpu) static int handle_lctlg(struct kvm_vcpu *vcpu)
{ {
int reg1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4; int reg1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4;
int reg3 = vcpu->arch.sie_block->ipa & 0x000f; int reg3 = vcpu->arch.sie_block->ipa & 0x000f;
...@@ -30,7 +30,7 @@ static int handle_lctg(struct kvm_vcpu *vcpu) ...@@ -30,7 +30,7 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
u64 useraddr; u64 useraddr;
int reg, rc; int reg, rc;
vcpu->stat.instruction_lctg++; vcpu->stat.instruction_lctlg++;
if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f) if ((vcpu->arch.sie_block->ipb & 0xff) != 0x2f)
return -ENOTSUPP; return -ENOTSUPP;
...@@ -38,9 +38,12 @@ static int handle_lctg(struct kvm_vcpu *vcpu) ...@@ -38,9 +38,12 @@ static int handle_lctg(struct kvm_vcpu *vcpu)
if (base2) if (base2)
useraddr += vcpu->arch.guest_gprs[base2]; useraddr += vcpu->arch.guest_gprs[base2];
if (useraddr & 7)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
reg = reg1; reg = reg1;
VCPU_EVENT(vcpu, 5, "lctg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2, VCPU_EVENT(vcpu, 5, "lctlg r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
disp2); disp2);
do { do {
...@@ -74,6 +77,9 @@ static int handle_lctl(struct kvm_vcpu *vcpu) ...@@ -74,6 +77,9 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
if (base2) if (base2)
useraddr += vcpu->arch.guest_gprs[base2]; useraddr += vcpu->arch.guest_gprs[base2];
if (useraddr & 3)
return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
VCPU_EVENT(vcpu, 5, "lctl r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2, VCPU_EVENT(vcpu, 5, "lctl r1:%x, r3:%x,b2:%x,d2:%x", reg1, reg3, base2,
disp2); disp2);
...@@ -99,7 +105,7 @@ static intercept_handler_t instruction_handlers[256] = { ...@@ -99,7 +105,7 @@ static intercept_handler_t instruction_handlers[256] = {
[0xae] = kvm_s390_handle_sigp, [0xae] = kvm_s390_handle_sigp,
[0xb2] = kvm_s390_handle_priv, [0xb2] = kvm_s390_handle_priv,
[0xb7] = handle_lctl, [0xb7] = handle_lctl,
[0xeb] = handle_lctg, [0xeb] = handle_lctlg,
}; };
static int handle_noop(struct kvm_vcpu *vcpu) static int handle_noop(struct kvm_vcpu *vcpu)
......
...@@ -13,6 +13,7 @@ ...@@ -13,6 +13,7 @@
#include <asm/lowcore.h> #include <asm/lowcore.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <linux/kvm_host.h> #include <linux/kvm_host.h>
#include <linux/signal.h>
#include "kvm-s390.h" #include "kvm-s390.h"
#include "gaccess.h" #include "gaccess.h"
...@@ -246,15 +247,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, ...@@ -246,15 +247,10 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu,
default: default:
BUG(); BUG();
} }
if (exception) { if (exception) {
VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering" printk("kvm: The guest lowcore is not mapped during interrupt "
" interrupt"); "delivery, killing userspace\n");
kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); do_exit(SIGKILL);
if (inti->type == KVM_S390_PROGRAM_INT) {
printk(KERN_WARNING "kvm: recursive program check\n");
BUG();
}
} }
} }
...@@ -277,14 +273,11 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu) ...@@ -277,14 +273,11 @@ static int __try_deliver_ckc_interrupt(struct kvm_vcpu *vcpu)
__LC_EXT_NEW_PSW, sizeof(psw_t)); __LC_EXT_NEW_PSW, sizeof(psw_t));
if (rc == -EFAULT) if (rc == -EFAULT)
exception = 1; exception = 1;
if (exception) { if (exception) {
VCPU_EVENT(vcpu, 1, "%s", "program exception while delivering" \ printk("kvm: The guest lowcore is not mapped during interrupt "
" ckc interrupt"); "delivery, killing userspace\n");
kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); do_exit(SIGKILL);
return 0;
} }
return 1; return 1;
} }
......
...@@ -39,7 +39,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { ...@@ -39,7 +39,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "exit_instruction", VCPU_STAT(exit_instruction) }, { "exit_instruction", VCPU_STAT(exit_instruction) },
{ "exit_program_interruption", VCPU_STAT(exit_program_interruption) }, { "exit_program_interruption", VCPU_STAT(exit_program_interruption) },
{ "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) }, { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) },
{ "instruction_lctg", VCPU_STAT(instruction_lctg) }, { "instruction_lctlg", VCPU_STAT(instruction_lctlg) },
{ "instruction_lctl", VCPU_STAT(instruction_lctl) }, { "instruction_lctl", VCPU_STAT(instruction_lctl) },
{ "deliver_emergency_signal", VCPU_STAT(deliver_emergency_signal) }, { "deliver_emergency_signal", VCPU_STAT(deliver_emergency_signal) },
{ "deliver_service_signal", VCPU_STAT(deliver_service_signal) }, { "deliver_service_signal", VCPU_STAT(deliver_service_signal) },
...@@ -112,7 +112,12 @@ long kvm_arch_dev_ioctl(struct file *filp, ...@@ -112,7 +112,12 @@ long kvm_arch_dev_ioctl(struct file *filp,
int kvm_dev_ioctl_check_extension(long ext) int kvm_dev_ioctl_check_extension(long ext)
{ {
return 0; switch (ext) {
case KVM_CAP_USER_MEMORY:
return 1;
default:
return 0;
}
} }
/* Section: vm related */ /* Section: vm related */
......
...@@ -43,7 +43,8 @@ ...@@ -43,7 +43,8 @@
#define SIGP_STAT_RECEIVER_CHECK 0x00000001UL #define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, u64 *reg) static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr,
unsigned long *reg)
{ {
struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
int rc; int rc;
...@@ -167,7 +168,7 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter) ...@@ -167,7 +168,7 @@ static int __sigp_set_arch(struct kvm_vcpu *vcpu, u32 parameter)
} }
static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address,
u64 *reg) unsigned long *reg)
{ {
struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int;
struct kvm_s390_local_interrupt *li; struct kvm_s390_local_interrupt *li;
......
...@@ -1814,6 +1814,7 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva) ...@@ -1814,6 +1814,7 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
spin_unlock(&vcpu->kvm->mmu_lock); spin_unlock(&vcpu->kvm->mmu_lock);
return r; return r;
} }
EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);
void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
{ {
...@@ -1870,6 +1871,12 @@ void kvm_enable_tdp(void) ...@@ -1870,6 +1871,12 @@ void kvm_enable_tdp(void)
} }
EXPORT_SYMBOL_GPL(kvm_enable_tdp); EXPORT_SYMBOL_GPL(kvm_enable_tdp);
void kvm_disable_tdp(void)
{
tdp_enabled = false;
}
EXPORT_SYMBOL_GPL(kvm_disable_tdp);
static void free_mmu_pages(struct kvm_vcpu *vcpu) static void free_mmu_pages(struct kvm_vcpu *vcpu)
{ {
struct kvm_mmu_page *sp; struct kvm_mmu_page *sp;
......
...@@ -453,7 +453,8 @@ static __init int svm_hardware_setup(void) ...@@ -453,7 +453,8 @@ static __init int svm_hardware_setup(void)
if (npt_enabled) { if (npt_enabled) {
printk(KERN_INFO "kvm: Nested Paging enabled\n"); printk(KERN_INFO "kvm: Nested Paging enabled\n");
kvm_enable_tdp(); kvm_enable_tdp();
} } else
kvm_disable_tdp();
return 0; return 0;
...@@ -1007,10 +1008,13 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) ...@@ -1007,10 +1008,13 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
struct kvm *kvm = svm->vcpu.kvm; struct kvm *kvm = svm->vcpu.kvm;
u64 fault_address; u64 fault_address;
u32 error_code; u32 error_code;
bool event_injection = false;
if (!irqchip_in_kernel(kvm) && if (!irqchip_in_kernel(kvm) &&
is_external_interrupt(exit_int_info)) is_external_interrupt(exit_int_info)) {
event_injection = true;
push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK); push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK);
}
fault_address = svm->vmcb->control.exit_info_2; fault_address = svm->vmcb->control.exit_info_2;
error_code = svm->vmcb->control.exit_info_1; error_code = svm->vmcb->control.exit_info_1;
...@@ -1024,6 +1028,8 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) ...@@ -1024,6 +1028,8 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
(u32)fault_address, (u32)(fault_address >> 32), (u32)fault_address, (u32)(fault_address >> 32),
handler); handler);
if (event_injection)
kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
} }
......
...@@ -2298,6 +2298,8 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) ...@@ -2298,6 +2298,8 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
cr2 = vmcs_readl(EXIT_QUALIFICATION); cr2 = vmcs_readl(EXIT_QUALIFICATION);
KVMTRACE_3D(PAGE_FAULT, vcpu, error_code, (u32)cr2, KVMTRACE_3D(PAGE_FAULT, vcpu, error_code, (u32)cr2,
(u32)((u64)cr2 >> 32), handler); (u32)((u64)cr2 >> 32), handler);
if (vect_info & VECTORING_INFO_VALID_MASK)
kvm_mmu_unprotect_page_virt(vcpu, cr2);
return kvm_mmu_page_fault(vcpu, cr2, error_code); return kvm_mmu_page_fault(vcpu, cr2, error_code);
} }
...@@ -3116,15 +3118,6 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id) ...@@ -3116,15 +3118,6 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);
allocate_vpid(vmx); allocate_vpid(vmx);
if (id == 0 && vm_need_ept()) {
kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
VMX_EPT_WRITABLE_MASK |
VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
VMX_EPT_FAKE_DIRTY_MASK, 0ull,
VMX_EPT_EXECUTABLE_MASK);
kvm_enable_tdp();
}
err = kvm_vcpu_init(&vmx->vcpu, kvm, id); err = kvm_vcpu_init(&vmx->vcpu, kvm, id);
if (err) if (err)
...@@ -3303,8 +3296,17 @@ static int __init vmx_init(void) ...@@ -3303,8 +3296,17 @@ static int __init vmx_init(void)
vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_ESP); vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_ESP);
vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_EIP); vmx_disable_intercept_for_msr(vmx_msr_bitmap, MSR_IA32_SYSENTER_EIP);
if (cpu_has_vmx_ept()) if (vm_need_ept()) {
bypass_guest_pf = 0; bypass_guest_pf = 0;
kvm_mmu_set_base_ptes(VMX_EPT_READABLE_MASK |
VMX_EPT_WRITABLE_MASK |
VMX_EPT_DEFAULT_MT << VMX_EPT_MT_EPTE_SHIFT);
kvm_mmu_set_mask_ptes(0ull, VMX_EPT_FAKE_ACCESSED_MASK,
VMX_EPT_FAKE_DIRTY_MASK, 0ull,
VMX_EPT_EXECUTABLE_MASK);
kvm_enable_tdp();
} else
kvm_disable_tdp();
if (bypass_guest_pf) if (bypass_guest_pf)
kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull); kvm_mmu_set_nonpresent_ptes(~0xffeull, 0ull);
......
...@@ -3184,6 +3184,10 @@ static void seg_desct_to_kvm_desct(struct desc_struct *seg_desc, u16 selector, ...@@ -3184,6 +3184,10 @@ static void seg_desct_to_kvm_desct(struct desc_struct *seg_desc, u16 selector,
kvm_desct->base |= seg_desc->base2 << 24; kvm_desct->base |= seg_desc->base2 << 24;
kvm_desct->limit = seg_desc->limit0; kvm_desct->limit = seg_desc->limit0;
kvm_desct->limit |= seg_desc->limit << 16; kvm_desct->limit |= seg_desc->limit << 16;
if (seg_desc->g) {
kvm_desct->limit <<= 12;
kvm_desct->limit |= 0xfff;
}
kvm_desct->selector = selector; kvm_desct->selector = selector;
kvm_desct->type = seg_desc->type; kvm_desct->type = seg_desc->type;
kvm_desct->present = seg_desc->p; kvm_desct->present = seg_desc->p;
...@@ -3223,6 +3227,7 @@ static void get_segment_descritptor_dtable(struct kvm_vcpu *vcpu, ...@@ -3223,6 +3227,7 @@ static void get_segment_descritptor_dtable(struct kvm_vcpu *vcpu,
static int load_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, static int load_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
struct desc_struct *seg_desc) struct desc_struct *seg_desc)
{ {
gpa_t gpa;
struct descriptor_table dtable; struct descriptor_table dtable;
u16 index = selector >> 3; u16 index = selector >> 3;
...@@ -3232,13 +3237,16 @@ static int load_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, ...@@ -3232,13 +3237,16 @@ static int load_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
kvm_queue_exception_e(vcpu, GP_VECTOR, selector & 0xfffc); kvm_queue_exception_e(vcpu, GP_VECTOR, selector & 0xfffc);
return 1; return 1;
} }
return kvm_read_guest(vcpu->kvm, dtable.base + index * 8, seg_desc, 8); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, dtable.base);
gpa += index * 8;
return kvm_read_guest(vcpu->kvm, gpa, seg_desc, 8);
} }
/* allowed just for 8 bytes segments */ /* allowed just for 8 bytes segments */
static int save_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, static int save_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
struct desc_struct *seg_desc) struct desc_struct *seg_desc)
{ {
gpa_t gpa;
struct descriptor_table dtable; struct descriptor_table dtable;
u16 index = selector >> 3; u16 index = selector >> 3;
...@@ -3246,7 +3254,9 @@ static int save_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, ...@@ -3246,7 +3254,9 @@ static int save_guest_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
if (dtable.limit < index * 8 + 7) if (dtable.limit < index * 8 + 7)
return 1; return 1;
return kvm_write_guest(vcpu->kvm, dtable.base + index * 8, seg_desc, 8); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, dtable.base);
gpa += index * 8;
return kvm_write_guest(vcpu->kvm, gpa, seg_desc, 8);
} }
static u32 get_tss_base_addr(struct kvm_vcpu *vcpu, static u32 get_tss_base_addr(struct kvm_vcpu *vcpu,
...@@ -3258,55 +3268,7 @@ static u32 get_tss_base_addr(struct kvm_vcpu *vcpu, ...@@ -3258,55 +3268,7 @@ static u32 get_tss_base_addr(struct kvm_vcpu *vcpu,
base_addr |= (seg_desc->base1 << 16); base_addr |= (seg_desc->base1 << 16);
base_addr |= (seg_desc->base2 << 24); base_addr |= (seg_desc->base2 << 24);
return base_addr; return vcpu->arch.mmu.gva_to_gpa(vcpu, base_addr);
}
static int load_tss_segment32(struct kvm_vcpu *vcpu,
struct desc_struct *seg_desc,
struct tss_segment_32 *tss)
{
u32 base_addr;
base_addr = get_tss_base_addr(vcpu, seg_desc);
return kvm_read_guest(vcpu->kvm, base_addr, tss,
sizeof(struct tss_segment_32));
}
static int save_tss_segment32(struct kvm_vcpu *vcpu,
struct desc_struct *seg_desc,
struct tss_segment_32 *tss)
{
u32 base_addr;
base_addr = get_tss_base_addr(vcpu, seg_desc);
return kvm_write_guest(vcpu->kvm, base_addr, tss,
sizeof(struct tss_segment_32));
}
static int load_tss_segment16(struct kvm_vcpu *vcpu,
struct desc_struct *seg_desc,
struct tss_segment_16 *tss)
{
u32 base_addr;
base_addr = get_tss_base_addr(vcpu, seg_desc);
return kvm_read_guest(vcpu->kvm, base_addr, tss,
sizeof(struct tss_segment_16));
}
static int save_tss_segment16(struct kvm_vcpu *vcpu,
struct desc_struct *seg_desc,
struct tss_segment_16 *tss)
{
u32 base_addr;
base_addr = get_tss_base_addr(vcpu, seg_desc);
return kvm_write_guest(vcpu->kvm, base_addr, tss,
sizeof(struct tss_segment_16));
} }
static u16 get_segment_selector(struct kvm_vcpu *vcpu, int seg) static u16 get_segment_selector(struct kvm_vcpu *vcpu, int seg)
...@@ -3466,20 +3428,26 @@ static int load_state_from_tss16(struct kvm_vcpu *vcpu, ...@@ -3466,20 +3428,26 @@ static int load_state_from_tss16(struct kvm_vcpu *vcpu,
} }
static int kvm_task_switch_16(struct kvm_vcpu *vcpu, u16 tss_selector, static int kvm_task_switch_16(struct kvm_vcpu *vcpu, u16 tss_selector,
struct desc_struct *cseg_desc, u32 old_tss_base,
struct desc_struct *nseg_desc) struct desc_struct *nseg_desc)
{ {
struct tss_segment_16 tss_segment_16; struct tss_segment_16 tss_segment_16;
int ret = 0; int ret = 0;
if (load_tss_segment16(vcpu, cseg_desc, &tss_segment_16)) if (kvm_read_guest(vcpu->kvm, old_tss_base, &tss_segment_16,
sizeof tss_segment_16))
goto out; goto out;
save_state_to_tss16(vcpu, &tss_segment_16); save_state_to_tss16(vcpu, &tss_segment_16);
save_tss_segment16(vcpu, cseg_desc, &tss_segment_16);
if (load_tss_segment16(vcpu, nseg_desc, &tss_segment_16)) if (kvm_write_guest(vcpu->kvm, old_tss_base, &tss_segment_16,
sizeof tss_segment_16))
goto out; goto out;
if (kvm_read_guest(vcpu->kvm, get_tss_base_addr(vcpu, nseg_desc),
&tss_segment_16, sizeof tss_segment_16))
goto out;
if (load_state_from_tss16(vcpu, &tss_segment_16)) if (load_state_from_tss16(vcpu, &tss_segment_16))
goto out; goto out;
...@@ -3489,20 +3457,26 @@ static int kvm_task_switch_16(struct kvm_vcpu *vcpu, u16 tss_selector, ...@@ -3489,20 +3457,26 @@ static int kvm_task_switch_16(struct kvm_vcpu *vcpu, u16 tss_selector,
} }
static int kvm_task_switch_32(struct kvm_vcpu *vcpu, u16 tss_selector, static int kvm_task_switch_32(struct kvm_vcpu *vcpu, u16 tss_selector,
struct desc_struct *cseg_desc, u32 old_tss_base,
struct desc_struct *nseg_desc) struct desc_struct *nseg_desc)
{ {
struct tss_segment_32 tss_segment_32; struct tss_segment_32 tss_segment_32;
int ret = 0; int ret = 0;
if (load_tss_segment32(vcpu, cseg_desc, &tss_segment_32)) if (kvm_read_guest(vcpu->kvm, old_tss_base, &tss_segment_32,
sizeof tss_segment_32))
goto out; goto out;
save_state_to_tss32(vcpu, &tss_segment_32); save_state_to_tss32(vcpu, &tss_segment_32);
save_tss_segment32(vcpu, cseg_desc, &tss_segment_32);
if (load_tss_segment32(vcpu, nseg_desc, &tss_segment_32)) if (kvm_write_guest(vcpu->kvm, old_tss_base, &tss_segment_32,
sizeof tss_segment_32))
goto out;
if (kvm_read_guest(vcpu->kvm, get_tss_base_addr(vcpu, nseg_desc),
&tss_segment_32, sizeof tss_segment_32))
goto out; goto out;
if (load_state_from_tss32(vcpu, &tss_segment_32)) if (load_state_from_tss32(vcpu, &tss_segment_32))
goto out; goto out;
...@@ -3517,16 +3491,20 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) ...@@ -3517,16 +3491,20 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
struct desc_struct cseg_desc; struct desc_struct cseg_desc;
struct desc_struct nseg_desc; struct desc_struct nseg_desc;
int ret = 0; int ret = 0;
u32 old_tss_base = get_segment_base(vcpu, VCPU_SREG_TR);
u16 old_tss_sel = get_segment_selector(vcpu, VCPU_SREG_TR);
kvm_get_segment(vcpu, &tr_seg, VCPU_SREG_TR); old_tss_base = vcpu->arch.mmu.gva_to_gpa(vcpu, old_tss_base);
/* FIXME: Handle errors. Failure to read either TSS or their
* descriptors should generate a pagefault.
*/
if (load_guest_segment_descriptor(vcpu, tss_selector, &nseg_desc)) if (load_guest_segment_descriptor(vcpu, tss_selector, &nseg_desc))
goto out; goto out;
if (load_guest_segment_descriptor(vcpu, tr_seg.selector, &cseg_desc)) if (load_guest_segment_descriptor(vcpu, old_tss_sel, &cseg_desc))
goto out; goto out;
if (reason != TASK_SWITCH_IRET) { if (reason != TASK_SWITCH_IRET) {
int cpl; int cpl;
...@@ -3544,8 +3522,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) ...@@ -3544,8 +3522,7 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
if (reason == TASK_SWITCH_IRET || reason == TASK_SWITCH_JMP) { if (reason == TASK_SWITCH_IRET || reason == TASK_SWITCH_JMP) {
cseg_desc.type &= ~(1 << 1); //clear the B flag cseg_desc.type &= ~(1 << 1); //clear the B flag
save_guest_segment_descriptor(vcpu, tr_seg.selector, save_guest_segment_descriptor(vcpu, old_tss_sel, &cseg_desc);
&cseg_desc);
} }
if (reason == TASK_SWITCH_IRET) { if (reason == TASK_SWITCH_IRET) {
...@@ -3557,10 +3534,10 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason) ...@@ -3557,10 +3534,10 @@ int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason)
kvm_x86_ops->cache_regs(vcpu); kvm_x86_ops->cache_regs(vcpu);
if (nseg_desc.type & 8) if (nseg_desc.type & 8)
ret = kvm_task_switch_32(vcpu, tss_selector, &cseg_desc, ret = kvm_task_switch_32(vcpu, tss_selector, old_tss_base,
&nseg_desc); &nseg_desc);
else else
ret = kvm_task_switch_16(vcpu, tss_selector, &cseg_desc, ret = kvm_task_switch_16(vcpu, tss_selector, old_tss_base,
&nseg_desc); &nseg_desc);
if (reason == TASK_SWITCH_CALL || reason == TASK_SWITCH_GATE) { if (reason == TASK_SWITCH_CALL || reason == TASK_SWITCH_GATE) {
......
...@@ -6,4 +6,4 @@ ...@@ -6,4 +6,4 @@
# it under the terms of the GNU General Public License (version 2 only) # it under the terms of the GNU General Public License (version 2 only)
# as published by the Free Software Foundation. # as published by the Free Software Foundation.
obj-$(CONFIG_VIRTIO) += kvm_virtio.o obj-$(CONFIG_S390_GUEST) += kvm_virtio.o
...@@ -61,7 +61,8 @@ extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu); ...@@ -61,7 +61,8 @@ extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn, extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gfn_t gfn,
u64 asid, u32 flags); u64 asid, u32 flags);
extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, u64 eaddr, u64 asid); extern void kvmppc_mmu_invalidate(struct kvm_vcpu *vcpu, gva_t eaddr,
gva_t eend, u32 asid);
extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode); extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu); extern void kvmppc_check_and_deliver_interrupts(struct kvm_vcpu *vcpu);
......
...@@ -111,7 +111,7 @@ struct kvm_vcpu_stat { ...@@ -111,7 +111,7 @@ struct kvm_vcpu_stat {
u32 exit_validity; u32 exit_validity;
u32 exit_instruction; u32 exit_instruction;
u32 instruction_lctl; u32 instruction_lctl;
u32 instruction_lctg; u32 instruction_lctlg;
u32 exit_program_interruption; u32 exit_program_interruption;
u32 exit_instr_and_program; u32 exit_instr_and_program;
u32 deliver_emergency_signal; u32 deliver_emergency_signal;
...@@ -231,5 +231,5 @@ struct kvm_arch{ ...@@ -231,5 +231,5 @@ struct kvm_arch{
struct kvm_s390_float_interrupt float_int; struct kvm_s390_float_interrupt float_int;
}; };
extern int sie64a(struct kvm_s390_sie_block *, __u64 *); extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
#endif #endif
...@@ -556,6 +556,7 @@ int kvm_fix_hypercall(struct kvm_vcpu *vcpu); ...@@ -556,6 +556,7 @@ int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
void kvm_enable_tdp(void); void kvm_enable_tdp(void);
void kvm_disable_tdp(void);
int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int complete_pio(struct kvm_vcpu *vcpu); int complete_pio(struct kvm_vcpu *vcpu);
......
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