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-rw-r--r--arch/m68k/kernel/entry.S4
-rw-r--r--arch/m68knommu/defconfig112
-rw-r--r--arch/m68knommu/kernel/syscalltable.S4
-rw-r--r--arch/m68knommu/platform/68328/timers.c10
-rw-r--r--arch/x86/Kconfig2
-rw-r--r--arch/x86/kvm/lapic.c4
-rw-r--r--arch/x86/kvm/mmu.c38
-rw-r--r--arch/x86/kvm/paging_tmpl.h20
-rw-r--r--arch/x86/kvm/svm.c26
-rw-r--r--arch/x86/kvm/vmx.c14
-rw-r--r--arch/x86/kvm/x86.c114
11 files changed, 204 insertions, 144 deletions
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 6dfa3b3c0e2..18a9c5f4b00 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -742,7 +742,9 @@ sys_call_table:
.long sys_epoll_pwait /* 315 */
.long sys_utimensat
.long sys_signalfd
- .long sys_ni_syscall
+ .long sys_timerfd_create
.long sys_eventfd
.long sys_fallocate /* 320 */
+ .long sys_timerfd_settime
+ .long sys_timerfd_gettime
diff --git a/arch/m68knommu/defconfig b/arch/m68knommu/defconfig
index 648113075f9..670b0a99cfa 100644
--- a/arch/m68knommu/defconfig
+++ b/arch/m68knommu/defconfig
@@ -1,7 +1,7 @@
#
# Automatically generated make config: don't edit
-# Linux kernel version: 2.6.23
-# Thu Oct 18 13:17:38 2007
+# Linux kernel version: 2.6.25-rc3
+# Mon Feb 25 15:03:00 2008
#
CONFIG_M68K=y
# CONFIG_MMU is not set
@@ -15,8 +15,10 @@ CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_TIME=y
CONFIG_TIME_LOW_RES=y
CONFIG_NO_IOPORT=y
+CONFIG_ARCH_SUPPORTS_AOUT=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
@@ -31,12 +33,14 @@ CONFIG_LOCALVERSION_AUTO=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
-# CONFIG_USER_NS is not set
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+# CONFIG_GROUP_SCHED is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
@@ -48,15 +52,22 @@ CONFIG_SYSCTL_SYSCALL=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
+CONFIG_COMPAT_BRK=y
CONFIG_BASE_FULL=y
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+# CONFIG_HAVE_OPROFILE is not set
+# CONFIG_HAVE_KPROBES is not set
+CONFIG_SLABINFO=y
CONFIG_TINY_SHMEM=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
@@ -83,6 +94,8 @@ CONFIG_IOSCHED_NOOP=y
# CONFIG_DEFAULT_CFQ is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_CLASSIC_RCU=y
+# CONFIG_PREEMPT_RCU is not set
#
# Processor type and features
@@ -121,6 +134,7 @@ CONFIG_M5272C3=y
# CONFIG_MOD5272 is not set
CONFIG_FREESCALE=y
CONFIG_4KSTACKS=y
+CONFIG_HZ=100
#
# RAM configuration
@@ -147,6 +161,7 @@ CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_RESOURCES_64BIT is not set
CONFIG_ZONE_DMA_FLAG=1
@@ -159,10 +174,6 @@ CONFIG_VIRT_TO_BUS=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
#
-# PCCARD (PCMCIA/CardBus) support
-#
-
-#
# Executable file formats
#
CONFIG_BINFMT_FLAT=y
@@ -205,6 +216,7 @@ CONFIG_IP_FIB_HASH=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
@@ -229,10 +241,6 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_LAPB is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
-
-#
-# QoS and/or fair queueing
-#
# CONFIG_NET_SCHED is not set
#
@@ -240,6 +248,7 @@ CONFIG_DEFAULT_TCP_CONG="cubic"
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
@@ -283,6 +292,7 @@ CONFIG_MTD_BLOCK=y
# CONFIG_INFTL is not set
# CONFIG_RFD_FTL is not set
# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
#
# RAM/ROM/Flash chip drivers
@@ -339,10 +349,11 @@ CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
-CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024
+# CONFIG_BLK_DEV_XIP is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_MISC_DEVICES is not set
+CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
@@ -360,9 +371,15 @@ CONFIG_NETDEVICES=y
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
+# CONFIG_VETH is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
# CONFIG_MII is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_B44 is not set
CONFIG_FEC=y
# CONFIG_FEC2 is not set
# CONFIG_NETDEV_1000 is not set
@@ -377,7 +394,7 @@ CONFIG_FEC=y
CONFIG_PPP=y
# CONFIG_PPP_MULTILINK is not set
# CONFIG_PPP_FILTER is not set
-# CONFIG_PPP_ASYNC is not set
+CONFIG_PPP_ASYNC=y
# CONFIG_PPP_SYNC_TTY is not set
# CONFIG_PPP_DEFLATE is not set
# CONFIG_PPP_BSDCOMP is not set
@@ -386,7 +403,6 @@ CONFIG_PPP=y
# CONFIG_PPPOL2TP is not set
# CONFIG_SLIP is not set
CONFIG_SLHC=y
-# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
@@ -418,12 +434,16 @@ CONFIG_SLHC=y
#
# Non-8250 serial port support
#
-CONFIG_SERIAL_COLDFIRE=y
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_COLDFIRE is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=19200
+CONFIG_SERIAL_MCF_CONSOLE=y
# CONFIG_UNIX98_PTYS is not set
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_IPMI_HANDLER is not set
-# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_GEN_RTC is not set
# CONFIG_R3964 is not set
@@ -439,6 +459,14 @@ CONFIG_LEGACY_PTY_COUNT=256
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
#
# Multifunction device drivers
@@ -450,20 +478,20 @@ CONFIG_LEGACY_PTY_COUNT=256
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
-CONFIG_DAB=y
+# CONFIG_DAB is not set
#
# Graphics support
#
+# CONFIG_VGASTATE is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_FB is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
-# CONFIG_VGASTATE is not set
-CONFIG_VIDEO_OUTPUT_CONTROL=y
-# CONFIG_FB is not set
#
# Sound
@@ -471,23 +499,11 @@ CONFIG_VIDEO_OUTPUT_CONTROL=y
# CONFIG_SOUND is not set
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_RTC_CLASS is not set
#
-# DMA Engine support
-#
-# CONFIG_DMA_ENGINE is not set
-
-#
-# DMA Clients
-#
-
-#
-# DMA Devices
-#
-
-#
# Userspace I/O
#
# CONFIG_UIO is not set
@@ -505,11 +521,9 @@ CONFIG_EXT2_FS=y
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_MINIX_FS is not set
-CONFIG_ROMFS_FS=y
+# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
-# CONFIG_DNOTIFY is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
@@ -535,7 +549,6 @@ CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
-CONFIG_RAMFS=y
# CONFIG_CONFIGFS_FS is not set
#
@@ -551,42 +564,27 @@ CONFIG_RAMFS=y
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
+CONFIG_ROMFS_FS=y
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
-
-#
-# Network File Systems
-#
-# CONFIG_NFS_FS is not set
-# CONFIG_NFSD is not set
-# CONFIG_SMB_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
-
-#
-# Native Language Support
-#
# CONFIG_NLS is not set
-
-#
-# Distributed Lock Manager
-#
# CONFIG_DLM is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
# CONFIG_ENABLE_MUST_CHECK is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
@@ -594,6 +592,7 @@ CONFIG_MSDOS_PARTITION=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_KERNEL is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_SAMPLES is not set
# CONFIG_FULLDEBUG is not set
# CONFIG_HIGHPROFILE is not set
# CONFIG_BOOTPARAM is not set
@@ -605,6 +604,7 @@ CONFIG_MSDOS_PARTITION=y
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
# CONFIG_CRYPTO is not set
#
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index 1b02b882006..fca2e49917a 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -336,9 +336,11 @@ ENTRY(sys_call_table)
.long sys_epoll_pwait /* 315 */
.long sys_utimensat
.long sys_signalfd
- .long sys_ni_syscall
+ .long sys_timerfd_create
.long sys_eventfd
.long sys_fallocate /* 320 */
+ .long sys_timerfd_settime
+ .long sys_timerfd_gettime
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall
diff --git a/arch/m68knommu/platform/68328/timers.c b/arch/m68knommu/platform/68328/timers.c
index 9159fd05c9a..6bafefa546e 100644
--- a/arch/m68knommu/platform/68328/timers.c
+++ b/arch/m68knommu/platform/68328/timers.c
@@ -67,16 +67,6 @@ static irqreturn_t hw_tick(int irq, void *dummy)
/***************************************************************************/
-static irqreturn_t hw_tick(int irq, void *dummy)
-{
- /* Reset Timer1 */
- TSTAT &= 0;
-
- return arch_timer_interrupt(irq, dummy);
-}
-
-/***************************************************************************/
-
static struct irqaction m68328_timer_irq = {
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4a88cf7695b..53800b80a20 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -21,7 +21,7 @@ config X86
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_KPROBES
- select HAVE_KVM
+ select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
config GENERIC_LOCKBREAK
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 2cbee9479ce..68a6b151193 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -647,6 +647,10 @@ static void start_apic_timer(struct kvm_lapic *apic)
apic->timer.period = apic_get_reg(apic, APIC_TMICT) *
APIC_BUS_CYCLE_NS * apic->timer.divide_count;
atomic_set(&apic->timer.pending, 0);
+
+ if (!apic->timer.period)
+ return;
+
hrtimer_start(&apic->timer.dev,
ktime_add_ns(now, apic->timer.period),
HRTIMER_MODE_ABS);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8efdcdbebb0..d8172aabc66 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -681,8 +681,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
unsigned level,
int metaphysical,
unsigned access,
- u64 *parent_pte,
- bool *new_page)
+ u64 *parent_pte)
{
union kvm_mmu_page_role role;
unsigned index;
@@ -722,8 +721,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
vcpu->arch.mmu.prefetch_page(vcpu, sp);
if (!metaphysical)
rmap_write_protect(vcpu->kvm, gfn);
- if (new_page)
- *new_page = 1;
return sp;
}
@@ -876,11 +873,18 @@ static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva)
{
+ struct page *page;
+
gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
if (gpa == UNMAPPED_GVA)
return NULL;
- return gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+
+ down_read(&current->mm->mmap_sem);
+ page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+ up_read(&current->mm->mmap_sem);
+
+ return page;
}
static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
@@ -999,8 +1003,7 @@ static int __nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write,
>> PAGE_SHIFT;
new_table = kvm_mmu_get_page(vcpu, pseudo_gfn,
v, level - 1,
- 1, ACC_ALL, &table[index],
- NULL);
+ 1, ACC_ALL, &table[index]);
if (!new_table) {
pgprintk("nonpaging_map: ENOMEM\n");
kvm_release_page_clean(page);
@@ -1020,15 +1023,18 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, int write, gfn_t gfn)
struct page *page;
+ down_read(&vcpu->kvm->slots_lock);
+
down_read(&current->mm->mmap_sem);
page = gfn_to_page(vcpu->kvm, gfn);
+ up_read(&current->mm->mmap_sem);
spin_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_free_some_pages(vcpu);
r = __nonpaging_map(vcpu, v, write, gfn, page);
spin_unlock(&vcpu->kvm->mmu_lock);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return r;
}
@@ -1090,7 +1096,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
ASSERT(!VALID_PAGE(root));
sp = kvm_mmu_get_page(vcpu, root_gfn, 0,
- PT64_ROOT_LEVEL, 0, ACC_ALL, NULL, NULL);
+ PT64_ROOT_LEVEL, 0, ACC_ALL, NULL);
root = __pa(sp->spt);
++sp->root_count;
vcpu->arch.mmu.root_hpa = root;
@@ -1111,7 +1117,7 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
root_gfn = 0;
sp = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
PT32_ROOT_LEVEL, !is_paging(vcpu),
- ACC_ALL, NULL, NULL);
+ ACC_ALL, NULL);
root = __pa(sp->spt);
++sp->root_count;
vcpu->arch.mmu.pae_root[i] = root | PT_PRESENT_MASK;
@@ -1172,7 +1178,7 @@ void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
static void paging_new_cr3(struct kvm_vcpu *vcpu)
{
- pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->cr3);
+ pgprintk("%s: cr3 %lx\n", __FUNCTION__, vcpu->arch.cr3);
mmu_free_roots(vcpu);
}
@@ -1362,6 +1368,7 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
gfn_t gfn;
int r;
u64 gpte = 0;
+ struct page *page;
if (bytes != 4 && bytes != 8)
return;
@@ -1389,6 +1396,11 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
if (!is_present_pte(gpte))
return;
gfn = (gpte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT;
+
+ down_read(&current->mm->mmap_sem);
+ page = gfn_to_page(vcpu->kvm, gfn);
+ up_read(&current->mm->mmap_sem);
+
vcpu->arch.update_pte.gfn = gfn;
vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn);
}
@@ -1496,9 +1508,9 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
gpa_t gpa;
int r;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
spin_lock(&vcpu->kvm->mmu_lock);
r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 03ba8608fe0..ecc0856268c 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -91,7 +91,10 @@ static bool FNAME(cmpxchg_gpte)(struct kvm *kvm,
pt_element_t *table;
struct page *page;
+ down_read(&current->mm->mmap_sem);
page = gfn_to_page(kvm, table_gfn);
+ up_read(&current->mm->mmap_sem);
+
table = kmap_atomic(page, KM_USER0);
ret = CMPXCHG(&table[index], orig_pte, new_pte);
@@ -140,7 +143,7 @@ walk:
}
#endif
ASSERT((!is_long_mode(vcpu) && is_pae(vcpu)) ||
- (vcpu->cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
+ (vcpu->arch.cr3 & CR3_NONPAE_RESERVED_BITS) == 0);
pt_access = ACC_ALL;
@@ -297,7 +300,6 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
u64 shadow_pte;
int metaphysical;
gfn_t table_gfn;
- bool new_page = 0;
shadow_ent = ((u64 *)__va(shadow_addr)) + index;
if (level == PT_PAGE_TABLE_LEVEL)
@@ -319,8 +321,8 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
}
shadow_page = kvm_mmu_get_page(vcpu, table_gfn, addr, level-1,
metaphysical, access,
- shadow_ent, &new_page);
- if (new_page && !metaphysical) {
+ shadow_ent);
+ if (!metaphysical) {
int r;
pt_element_t curr_pte;
r = kvm_read_guest_atomic(vcpu->kvm,
@@ -378,7 +380,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
if (r)
return r;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
/*
* Look up the shadow pte for the faulting address.
*/
@@ -392,11 +394,13 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
pgprintk("%s: guest page fault\n", __FUNCTION__);
inject_page_fault(vcpu, addr, walker.error_code);
vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return 0;
}
+ down_read(&current->mm->mmap_sem);
page = gfn_to_page(vcpu->kvm, walker.gfn);
+ up_read(&current->mm->mmap_sem);
spin_lock(&vcpu->kvm->mmu_lock);
kvm_mmu_free_some_pages(vcpu);
@@ -413,14 +417,14 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr,
*/
if (shadow_pte && is_io_pte(*shadow_pte)) {
spin_unlock(&vcpu->kvm->mmu_lock);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return 1;
}
++vcpu->stat.pf_fixed;
kvm_mmu_audit(vcpu, "post page fault (fixed)");
spin_unlock(&vcpu->kvm->mmu_lock);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return write_pt;
}
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index de755cb1431..1a582f1090e 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -792,6 +792,10 @@ static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
vcpu->arch.cr0 = cr0;
cr0 |= X86_CR0_PG | X86_CR0_WP;
cr0 &= ~(X86_CR0_CD | X86_CR0_NW);
+ if (!vcpu->fpu_active) {
+ svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR);
+ cr0 |= X86_CR0_TS;
+ }
svm->vmcb->save.cr0 = cr0;
}
@@ -1096,6 +1100,24 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
case MSR_IA32_SYSENTER_ESP:
*data = svm->vmcb->save.sysenter_esp;
break;
+ /* Nobody will change the following 5 values in the VMCB so
+ we can safely return them on rdmsr. They will always be 0
+ until LBRV is implemented. */
+ case MSR_IA32_DEBUGCTLMSR:
+ *data = svm->vmcb->save.dbgctl;
+ break;
+ case MSR_IA32_LASTBRANCHFROMIP:
+ *data = svm->vmcb->save.br_from;
+ break;
+ case MSR_IA32_LASTBRANCHTOIP:
+ *data = svm->vmcb->save.br_to;
+ break;
+ case MSR_IA32_LASTINTFROMIP:
+ *data = svm->vmcb->save.last_excp_from;
+ break;
+ case MSR_IA32_LASTINTTOIP:
+ *data = svm->vmcb->save.last_excp_to;
+ break;
default:
return kvm_get_msr_common(vcpu, ecx, data);
}
@@ -1156,6 +1178,10 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
case MSR_IA32_SYSENTER_ESP:
svm->vmcb->save.sysenter_esp = data;
break;
+ case MSR_IA32_DEBUGCTLMSR:
+ pr_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTLMSR 0x%llx, nop\n",
+ __FUNCTION__, data);
+ break;
case MSR_K7_EVNTSEL0:
case MSR_K7_EVNTSEL1:
case MSR_K7_EVNTSEL2:
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ad36447e696..94ea724638f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -638,6 +638,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
{
int save_nmsrs;
+ vmx_load_host_state(vmx);
save_nmsrs = 0;
#ifdef CONFIG_X86_64
if (is_long_mode(&vmx->vcpu)) {
@@ -1477,7 +1478,7 @@ static int alloc_apic_access_page(struct kvm *kvm)
struct kvm_userspace_memory_region kvm_userspace_mem;
int r = 0;
- down_write(&current->mm->mmap_sem);
+ down_write(&kvm->slots_lock);
if (kvm->arch.apic_access_page)
goto out;
kvm_userspace_mem.slot = APIC_ACCESS_PAGE_PRIVATE_MEMSLOT;
@@ -1487,9 +1488,12 @@ static int alloc_apic_access_page(struct kvm *kvm)
r = __kvm_set_memory_region(kvm, &kvm_userspace_mem, 0);
if (r)
goto out;
+
+ down_read(&current->mm->mmap_sem);
kvm->arch.apic_access_page = gfn_to_page(kvm, 0xfee00);
+ up_read(&current->mm->mmap_sem);
out:
- up_write(&current->mm->mmap_sem);
+ up_write(&kvm->slots_lock);
return r;
}
@@ -1602,9 +1606,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
vmcs_writel(CR0_GUEST_HOST_MASK, ~0UL);
vmcs_writel(CR4_GUEST_HOST_MASK, KVM_GUEST_CR4_MASK);
- if (vm_need_virtualize_apic_accesses(vmx->vcpu.kvm))
- if (alloc_apic_access_page(vmx->vcpu.kvm) != 0)
- return -ENOMEM;
return 0;
}
@@ -2534,6 +2535,9 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
put_cpu();
if (err)
goto free_vmcs;
+ if (vm_need_virtualize_apic_accesses(kvm))
+ if (alloc_apic_access_page(kvm) != 0)
+ goto free_vmcs;
return &vmx->vcpu;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index cf530814868..6b01552bd1f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -46,6 +46,9 @@
#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+ struct kvm_cpuid_entry2 __user *entries);
+
struct kvm_x86_ops *kvm_x86_ops;
struct kvm_stats_debugfs_item debugfs_entries[] = {
@@ -181,7 +184,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
int ret;
u64 pdpte[ARRAY_SIZE(vcpu->arch.pdptrs)];
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
ret = kvm_read_guest_page(vcpu->kvm, pdpt_gfn, pdpte,
offset * sizeof(u64), sizeof(pdpte));
if (ret < 0) {
@@ -198,7 +201,7 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3)
memcpy(vcpu->arch.pdptrs, pdpte, sizeof(vcpu->arch.pdptrs));
out:
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return ret;
}
@@ -212,13 +215,13 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu)
if (is_long_mode(vcpu) || !is_pae(vcpu))
return false;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
r = kvm_read_guest(vcpu->kvm, vcpu->arch.cr3 & ~31u, pdpte, sizeof(pdpte));
if (r < 0)
goto out;
changed = memcmp(pdpte, vcpu->arch.pdptrs, sizeof(pdpte)) != 0;
out:
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return changed;
}
@@ -356,7 +359,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
*/
}
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
/*
* Does the new cr3 value map to physical memory? (Note, we
* catch an invalid cr3 even in real-mode, because it would
@@ -372,7 +375,7 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
vcpu->arch.cr3 = cr3;
vcpu->arch.mmu.new_cr3(vcpu);
}
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
}
EXPORT_SYMBOL_GPL(set_cr3);
@@ -484,6 +487,10 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
pr_unimpl(vcpu, "%s: MSR_IA32_MCG_STATUS 0x%llx, nop\n",
__FUNCTION__, data);
break;
+ case MSR_IA32_MCG_CTL:
+ pr_unimpl(vcpu, "%s: MSR_IA32_MCG_CTL 0x%llx, nop\n",
+ __FUNCTION__, data);
+ break;
case MSR_IA32_UCODE_REV:
case MSR_IA32_UCODE_WRITE:
case 0x200 ... 0x2ff: /* MTRRs */
@@ -526,6 +533,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
case MSR_IA32_MC0_CTL:
case MSR_IA32_MCG_STATUS:
case MSR_IA32_MCG_CAP:
+ case MSR_IA32_MCG_CTL:
case MSR_IA32_MC0_MISC:
case MSR_IA32_MC0_MISC+4:
case MSR_IA32_MC0_MISC+8:
@@ -727,6 +735,24 @@ long kvm_arch_dev_ioctl(struct file *filp,
r = 0;
break;
}
+ case KVM_GET_SUPPORTED_CPUID: {
+ struct kvm_cpuid2 __user *cpuid_arg = argp;
+ struct kvm_cpuid2 cpuid;
+
+ r = -EFAULT;
+ if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
+ goto out;
+ r = kvm_dev_ioctl_get_supported_cpuid(&cpuid,
+ cpuid_arg->entries);
+ if (r)
+ goto out;
+
+ r = -EFAULT;
+ if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
+ goto out;
+ r = 0;
+ break;
+ }
default:
r = -EINVAL;
}
@@ -974,8 +1000,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
put_cpu();
}
-static int kvm_vm_ioctl_get_supported_cpuid(struct kvm *kvm,
- struct kvm_cpuid2 *cpuid,
+static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
struct kvm_cpuid_entry2 __user *entries)
{
struct kvm_cpuid_entry2 *cpuid_entries;
@@ -1207,12 +1232,12 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
return -EINVAL;
- down_write(&current->mm->mmap_sem);
+ down_write(&kvm->slots_lock);
kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
- up_write(&current->mm->mmap_sem);
+ up_write(&kvm->slots_lock);
return 0;
}
@@ -1261,7 +1286,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
< alias->target_phys_addr)
goto out;
- down_write(&current->mm->mmap_sem);
+ down_write(&kvm->slots_lock);
p = &kvm->arch.aliases[alias->slot];
p->base_gfn = alias->guest_phys_addr >> PAGE_SHIFT;
@@ -1275,7 +1300,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
kvm_mmu_zap_all(kvm);
- up_write(&current->mm->mmap_sem);
+ up_write(&kvm->slots_lock);
return 0;
@@ -1351,7 +1376,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
struct kvm_memory_slot *memslot;
int is_dirty = 0;
- down_write(&current->mm->mmap_sem);
+ down_write(&kvm->slots_lock);
r = kvm_get_dirty_log(kvm, log, &is_dirty);
if (r)
@@ -1367,7 +1392,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
}
r = 0;
out:
- up_write(&current->mm->mmap_sem);
+ up_write(&kvm->slots_lock);
return r;
}
@@ -1487,24 +1512,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = 0;
break;
}
- case KVM_GET_SUPPORTED_CPUID: {
- struct kvm_cpuid2 __user *cpuid_arg = argp;
- struct kvm_cpuid2 cpuid;
-
- r = -EFAULT;
- if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
- goto out;
- r = kvm_vm_ioctl_get_supported_cpuid(kvm, &cpuid,
- cpuid_arg->entries);
- if (r)
- goto out;
-
- r = -EFAULT;
- if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid))
- goto out;
- r = 0;
- break;
- }
default:
;
}
@@ -1563,7 +1570,7 @@ int emulator_read_std(unsigned long addr,
void *data = val;
int r = X86EMUL_CONTINUE;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
while (bytes) {
gpa_t gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
unsigned offset = addr & (PAGE_SIZE-1);
@@ -1585,7 +1592,7 @@ int emulator_read_std(unsigned long addr,
addr += tocopy;
}
out:
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return r;
}
EXPORT_SYMBOL_GPL(emulator_read_std);
@@ -1604,9 +1611,9 @@ static int emulator_read_emulated(unsigned long addr,
return X86EMUL_CONTINUE;
}
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
/* For APIC access vmexit */
if ((gpa & PAGE_MASK) == APIC_DEFAULT_PHYS_BASE)
@@ -1644,14 +1651,14 @@ static int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
{
int ret;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
if (ret < 0) {
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return 0;
}
kvm_mmu_pte_write(vcpu, gpa, val, bytes);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
return 1;
}
@@ -1663,9 +1670,9 @@ static int emulator_write_emulated_onepage(unsigned long addr,
struct kvm_io_device *mmio_dev;
gpa_t gpa;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
if (gpa == UNMAPPED_GVA) {
kvm_inject_page_fault(vcpu, addr, 2);
@@ -1742,7 +1749,7 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
char *kaddr;
u64 val;
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, addr);
if (gpa == UNMAPPED_GVA ||
@@ -1753,13 +1760,17 @@ static int emulator_cmpxchg_emulated(unsigned long addr,
goto emul_write;
val = *(u64 *)new;
+
+ down_read(&current->mm->mmap_sem);
page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+ up_read(&current->mm->mmap_sem);
+
kaddr = kmap_atomic(page, KM_USER0);
set_64bit((u64 *)(kaddr + offset_in_page(gpa)), val);
kunmap_atomic(kaddr, KM_USER0);
kvm_release_page_dirty(page);
emul_write:
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
}
#endif
@@ -2152,10 +2163,10 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
kvm_x86_ops->skip_emulated_instruction(vcpu);
for (i = 0; i < nr_pages; ++i) {
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
page = gva_to_page(vcpu, address + i * PAGE_SIZE);
vcpu->arch.pio.guest_pages[i] = page;
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
if (!page) {
kvm_inject_gp(vcpu, 0);
free_pio_guest_pages(vcpu);
@@ -2478,8 +2489,9 @@ static void vapic_enter(struct kvm_vcpu *vcpu)
down_read(&current->mm->mmap_sem);
page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT);
- vcpu->arch.apic->vapic_page = page;
up_read(&current->mm->mmap_sem);
+
+ vcpu->arch.apic->vapic_page = page;
}
static void vapic_exit(struct kvm_vcpu *vcpu)
@@ -2861,8 +2873,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
kvm_x86_ops->decache_cr4_guest_bits(vcpu);
mmu_reset_needed |= vcpu->arch.cr0 != sregs->cr0;
- vcpu->arch.cr0 = sregs->cr0;
kvm_x86_ops->set_cr0(vcpu, sregs->cr0);
+ vcpu->arch.cr0 = sregs->cr0;
mmu_reset_needed |= vcpu->arch.cr4 != sregs->cr4;
kvm_x86_ops->set_cr4(vcpu, sregs->cr4);
@@ -2952,9 +2964,9 @@ int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
gpa_t gpa;
vcpu_load(vcpu);
- down_read(&current->mm->mmap_sem);
+ down_read(&vcpu->kvm->slots_lock);
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, vaddr);
- up_read(&current->mm->mmap_sem);
+ up_read(&vcpu->kvm->slots_lock);
tr->physical_address = gpa;
tr->valid = gpa != UNMAPPED_GVA;
tr->writeable = 1;
@@ -3227,11 +3239,13 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
*/
if (!user_alloc) {
if (npages && !old.rmap) {
+ down_write(&current->mm->mmap_sem);
memslot->userspace_addr = do_mmap(NULL, 0,
npages * PAGE_SIZE,
PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS,
0);
+ up_write(&current->mm->mmap_sem);
if (IS_ERR((void *)memslot->userspace_addr))
return PTR_ERR((void *)memslot->userspace_addr);
@@ -3239,8 +3253,10 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
if (!old.user_alloc && old.rmap) {
int ret;
+ down_write(&current->mm->mmap_sem);
ret = do_munmap(current->mm, old.userspace_addr,
old.npages * PAGE_SIZE);
+ up_write(&current->mm->mmap_sem);
if (ret < 0)
printk(KERN_WARNING
"kvm_vm_ioctl_set_memory_region: "
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-20 10:02:38 +0000