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Xiao Guangrong dd180b3e90 KVM: VMX: fix tlb flush with invalid root 
Commit 341d9b535b6c simplify reload logic while entry guest mode, it
can avoid unnecessary sync-root if KVM_REQ_MMU_RELOAD and
KVM_REQ_MMU_SYNC both set.

But, it cause a issue that when we handle 'KVM_REQ_TLB_FLUSH', the
root is invalid, it is triggered during my test:

Kernel BUG at ffffffffa00212b8 [verbose debug info unavailable]
......

Fixed by directly return if the root is not ready.

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-08-02 06:40:16 +03:00
..
uv
x86, UV: uv_irq.c: Fix all sparse warnings
2010-04-17 10:37:20 +02:00
visws
x86: Move pci init function to x86_init
2010-02-19 16:12:29 -08:00
xen
xen: move Xen-testing predicates to common header
2009-11-04 08:47:24 -08:00
a.out-core.h
hw-breakpoints: Fix broken a.out format dump
2009-11-10 11:23:05 +01:00
a.out.h
…
acpi.h
ACPI: delete the "acpi=ht" boot option
2010-03-14 20:58:38 -04:00
aes.h
…
agp.h
…
alternative-asm.h
x86-64: Reduce SMP locks table size
2010-04-28 17:15:47 -07:00
alternative.h
Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 09:17:01 -07:00
amd_iommu_proto.h
x86/amd-iommu: Fix IOMMU-API initialization for iommu=pt
2010-01-22 17:44:35 +01:00
amd_iommu_types.h
Merge branch 'iommu/largepages' into amd-iommu/2.6.35
2010-05-11 17:40:57 +02:00
amd_iommu.h
x86/amd-iommu: Update copyright headers
2009-11-27 11:45:49 +01:00
apb_timer.h
x86, apbt: Moorestown APB system timer driver
2010-02-24 11:01:21 -08:00
apic.h
x86, apic: Allow to use certain functions without APIC built-in support
2010-03-18 17:03:21 +01:00
apicdef.h
x86: io-apic: IO-APIC MMIO should not fail on resource insertion
2009-11-16 16:37:10 +01:00
apm.h
…
arch_hweight.h
x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
2010-05-17 15:17:16 -07:00
asm-offsets.h
kbuild: move asm-offsets.h to include/generated
2009-12-12 13:08:14 +01:00
asm.h
…
atomic64_32.h
x86-32: Rewrite 32-bit atomic64 functions in assembly
2010-02-25 20:47:30 -08:00
atomic64_64.h
Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 08:40:05 -07:00
atomic.h
Merge branch 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-05-18 08:40:05 -07:00
auxvec.h
…
bios_ebda.h
…
bitops.h
x86: Add optimized popcnt variants
2010-04-06 15:52:11 -07:00
bitsperlong.h
…
boot.h
x86: Clean up arch/x86/Kconfig*
2010-04-28 17:25:53 -07:00
bootparam.h
…
bug.h
x86: Convert BUG() to use unreachable()
2009-12-05 09:10:12 -08:00
bugs.h
…
byteorder.h
…
cache.h
Rename .data.read_mostly to .data..read_mostly.
2010-03-03 11:26:00 +01:00
cacheflush.h
Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
2010-05-21 11:14:52 -07:00
calgary.h
x86: Calgary: Convert detect_calgary() to use iommu_init hook
2009-11-10 12:31:15 +01:00
calling.h
…
checksum_32.h
x86: fix csum_ipv6_magic asm memory clobber
2009-10-01 16:11:12 -07:00
checksum_64.h
…
checksum.h
…
cmpxchg_32.h
x86-32: Allow UP/SMP lock replacement in cmpxchg64
2010-02-25 20:47:03 -08:00
cmpxchg_64.h
x86: Generate cmpxchg build failures
2009-10-09 15:57:00 +02:00
cmpxchg.h
…
compat.h
improve sys_newuname() for compat architectures
2010-03-12 15:52:32 -08:00
cpu.h
…
cpufeature.h
x86, cpufeature: Unbreak compile with gcc 3.x
2010-05-27 12:02:00 -07:00
cpumask.h
…
cputime.h
…
current.h
…
debugreg.h
x86/debug: Clear reserved bits of DR6 in do_debug()
2010-01-29 02:26:10 +01:00
delay.h
…
desc_defs.h
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
desc.h
x86: Make sure get_user_desc() doesn't sign extend.
2009-11-05 13:22:18 -08:00
device.h
x86/amd-iommu: Use dev->arch->iommu to store iommu related information
2009-11-27 14:20:32 +01:00
div64.h
…
dma-mapping.h
dma-mapping: fix off-by-one error in dma_capable()
2009-12-16 07:20:12 -08:00
dma.h
…
dmi.h
…
dwarf2.h
x86: Use .cfi_sections for assembly code
2010-05-13 22:15:18 -07:00
e820.h
x86, tboot: Add support for S3 memory integrity protection
2010-03-19 13:39:58 -07:00
edac.h
…
efi.h
…
elf.h
x86: ELF_PLAT_INIT() shouldn't worry about TIF_IA32
2010-02-16 08:51:49 -08:00
emergency-restart.h
…
entry_arch.h
x86: UV RTC: Rename generic_interrupt to x86_platform_ipi
2009-10-14 18:27:11 +02:00
errno.h
…
fb.h
x86-64: Allow fbdev primary video code
2010-02-16 21:22:26 -08:00
fcntl.h
…
fixmap.h
x86: Fix placement of FIX_OHCI1394_BASE
2010-03-16 11:16:27 +01:00
floppy.h
…
frame.h
…
ftrace.h
…
futex.h
…
gart.h
x86: GART: Convert gart_iommu_hole_init() to use iommu_init hook
2009-11-10 12:31:23 +01:00
genapic.h
…
geode.h
cs5535: drop the Geode-specific MFGPT/GPIO code
2009-12-15 08:53:28 -08:00
gpio.h
…
hardirq.h
x86, asm: Introduce and use percpu_inc()
2010-04-28 16:58:49 -07:00
highmem.h
x86, paravirt: Remove kmap_atomic_pte paravirt op.
2010-02-27 14:41:35 -08:00
hpet.h
x86, hpet: Restrict read back to affected ATI chipsets
2010-04-28 18:14:29 -07:00
hugetlb.h
…
hw_breakpoint.h
hw-breakpoints: Get the number of available registers on boot dynamically
2010-05-01 04:32:14 +02:00
hw_irq.h
x86: Handle legacy PIC interrupts on all the cpu's
2010-03-16 06:36:35 +01:00
hypertransport.h
…
hyperv.h
x86: Clean up the hypervisor layer
2010-05-07 17:13:04 -07:00
hypervisor.h
x86: Clean up the hypervisor layer
2010-05-07 17:13:04 -07:00
i387.h
x86: Export FPU API for KVM use
2010-08-01 10:35:48 +03:00
i8253.h
i8253: Convert i8253_lock to raw_spinlock
2010-03-02 10:28:38 +01:00
i8259.h
Merge remote branch 'origin/x86/apic' into x86/mrst
2010-02-22 16:25:18 -08:00
ia32_unistd.h
…
ia32.h
…
idle.h
…
inat_types.h
…
inat.h
x86: AVX instruction set decoder support
2009-10-29 08:47:46 +01:00
init.h
…
insn.h
x86: Move MAX_INSN_SIZE into asm/insn.h
2010-03-10 13:23:34 +01:00
inst.h
crypto: aesni-intel - Fix another CTR build failure with gas 2.16.1
2010-03-24 21:37:57 +08:00
intel_scu_ipc.h
IPC driver for Intel Mobile Internet Device (MID) platforms
2010-05-17 12:06:07 -04:00
io_apic.h
x86, irq: Rename gsi_end gsi_top, and fix off by one errors
2010-06-09 13:34:06 -07:00
io.h
x86: Fix 'reservetop=' functionality
2010-04-30 12:19:53 +02:00
ioctl.h
…
ioctls.h
…
iomap.h
…
iommu.h
x86: Move iommu_shutdown_noop to x86_init.c
2009-11-15 09:03:10 +01:00
ipcbuf.h
…
ipi.h
…
irq_regs.h
…
irq_remapping.h
…
irq_vectors.h
x86, irq: Use 0x20 for the IRQ_MOVE_CLEANUP_VECTOR instead of 0x1f
2010-01-18 10:59:59 -08:00
irq.h
x86, legacy_irq: Remove left over nr_legacy_irqs
2010-02-24 11:01:34 -08:00
irqflags.h
…
ist.h
…
k8.h
x86, k8: Fix build error when K8_NB is disabled
2010-05-14 11:53:01 -07:00
Kbuild
KVM: export <asm/hyperv.h>
2010-03-01 12:36:01 -03:00
kdebug.h
…
kexec.h
…
kgdb.h
x86,kgdb: Add low level debug hook
2010-05-20 21:04:25 -05:00
kmap_types.h
…
kmemcheck.h
…
kprobes.h
x86: Move MAX_INSN_SIZE into asm/insn.h
2010-03-10 13:23:34 +01:00
kvm_emulate.h
KVM: x86 emulator: do not inject exception directly into vcpu
2010-08-01 10:35:37 +03:00
kvm_host.h
KVM: VMX: fix tlb flush with invalid root
2010-08-02 06:40:16 +03:00
kvm_para.h
x86, paravirt: don't compute pvclock adjustments if we trust the tsc
2010-05-19 11:41:05 +03:00
kvm.h
KVM: x86: XSAVE/XRSTOR live migration support
2010-08-01 10:46:37 +03:00
ldt.h
…
lguest_hcall.h
lguest: stop using KVM hypercall mechanism
2010-04-14 21:43:56 +09:30
lguest.h
…
linkage.h
…
local.h
local_t: Remove cpu_local_xx macros
2010-01-05 15:34:49 +09:00
mach_timer.h
…
mach_traps.h
…
math_emu.h
…
mc146818rtc.h
…
mca_dma.h
…
mca.h
…
mce.h
ACPI, APEI, Generic Hardware Error Source memory error support
2010-05-19 22:41:16 -04:00
microcode.h
Revert "x86: ucode-amd: Load ucode-patches once ..."
2010-01-23 06:21:59 +01:00
mman.h
…
mmconfig.h
…
mmu_context.h
cpumask: use mm_cpumask() wrapper: x86
2009-09-24 09:34:52 +09:30
mmu.h
…
mmx.h
…
mmzone_32.h
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
mmzone_64.h
x86, numa: Add fixed node size option for numa emulation
2010-02-15 14:34:10 -08:00
mmzone.h
…
module.h
…
mpspec_def.h
…
mpspec.h
x86, ioapic: Simplify probe_nr_irqs_gsi.
2010-05-04 13:35:11 -07:00
mrst.h
x86, mrst: Add vrtc platform data setup code
2010-02-23 23:15:19 -08:00
msgbuf.h
…
mshyperv.h
x86: Clean up the hypervisor layer
2010-05-07 17:13:04 -07:00
msidef.h
…
msr-index.h
KVM: SVM: Allow EFER.LMSLE to be set with nested svm
2010-08-01 10:35:38 +03:00
msr.h
x86, msr: msrs_alloc/free for CONFIG_SMP=n
2009-12-16 15:36:32 -08:00
mtrr.h
…
mutex_32.h
…
mutex_64.h
…
mutex.h
…
nmi.h
x86, perfctr: Remove unused func avail_to_resrv_perfctr_nmi()
2009-12-28 09:36:46 +01:00
nops.h
…
numa_32.h
…
numa_64.h
x86, numa: Add fixed node size option for numa emulation
2010-02-15 14:34:10 -08:00
numa.h
…
numaq.h
Merge branch 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-03-07 15:59:39 -08:00
olpc.h
x86, olpc: Use pci subarch init for OLPC
2010-02-25 19:26:23 -08:00
page_32_types.h
…
page_32.h
…
page_64_types.h
…
page_64.h
…
page_types.h
x86: Use the generic page_is_ram()
2010-02-01 16:58:17 -08:00
page.h
…
param.h
…
paravirt_types.h
x86, paravirt: Remove kmap_atomic_pte paravirt op.
2010-02-27 14:41:35 -08:00
paravirt.h
x86, paravirt: Remove kmap_atomic_pte paravirt op.
2010-02-27 14:41:35 -08:00
parport.h
…
pat.h
x86, platform: Change is_untracked_pat_range() to bool; cleanup init
2009-11-23 17:09:59 -08:00
pci_64.h
x86: Only call dma32_reserve_bootmem 64bit !CONFIG_NUMA
2010-02-10 17:47:18 -08:00
pci_x86.h
Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core
2010-06-04 15:39:54 -07:00
pci-direct.h
…
pci-functions.h
…
pci.h
pci-dma: add linux/pci-dma.h to linux/pci.h
2010-03-12 15:52:42 -08:00
percpu.h
percpu, x86: Avoid warnings of unused variables in per cpu
2010-06-11 00:03:45 +02:00
perf_event_p4.h
perf, x86: P4 PMU -- add missing bit in CCCR mask
2010-05-19 09:41:06 +02:00
perf_event.h
perf: Enhance perf to allow for guest statistic collection from host
2010-04-19 12:35:33 +03:00
pgalloc.h
x86, mm: Allow highmem user page tables to be disabled at boot time
2010-02-25 10:28:19 +01:00
pgtable_32_types.h
x86: use __ASSEMBLY__ rather than __ASSEMBLER__
2010-06-07 17:27:11 -07:00
pgtable_32.h
x86: don't include slab.h from arch/x86/include/asm/pgtable_32.h
2010-03-30 22:02:21 +09:00
pgtable_64_types.h
…
pgtable_64.h
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
2010-02-20 16:41:46 +00:00
pgtable_types.h
Merge branch 'bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen into x86/urgent
2009-09-23 14:35:10 +02:00
pgtable-2level_types.h
…
pgtable-2level.h
…
pgtable-3level_types.h
…
pgtable-3level.h
…
pgtable.h
x86, mm: is_untracked_pat_range() takes a normal semiclosed range
2009-11-23 17:09:59 -08:00
poll.h
…
posix_types_32.h
…
posix_types_64.h
…
posix_types.h
…
prctl.h
…
processor-cyrix.h
…
processor-flags.h
…
processor.h
x86, kgdb: early trap init for early debug
2010-05-20 21:04:29 -05:00
proto.h
Move round_up/down to kernel.h
2010-02-12 09:42:39 -08:00
ptrace-abi.h
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
ptrace.h
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
pvclock-abi.h
x86, paravirt: don't compute pvclock adjustments if we trust the tsc
2010-05-19 11:41:05 +03:00
pvclock.h
x86, paravirt: Enable pvclock flags in vcpu_time_info structure
2010-05-19 11:40:59 +03:00
reboot_fixups.h
…
reboot.h
…
required-features.h
…
resource.h
…
resume-trace.h
…
rio.h
…
rtc.h
…
rwlock.h
…
rwsem.h
x86-64, rwsem: Avoid store forwarding hazard in __downgrade_write
2010-02-13 13:37:56 -08:00
scatterlist.h
asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h
2010-05-27 09:12:54 -07:00
seccomp_32.h
…
seccomp_64.h
…
seccomp.h
…
sections.h
x86-64: align RODATA kernel section to 2MB with CONFIG_DEBUG_RODATA
2009-10-20 14:46:00 +09:00
segment.h
…
sembuf.h
…
serial.h
…
setup_arch.h
…
setup.h
x86: Move pci init function to x86_init
2010-02-19 16:12:29 -08:00
shmbuf.h
…
shmparam.h
…
sigcontext32.h
…
sigcontext.h
tree-wide: fix misspelling of "definition" in comments
2009-12-04 23:41:47 +01:00
sigframe.h
…
siginfo.h
…
signal.h
…
smp.h
x86, lib: Add wbinvd smp helpers
2010-01-22 16:05:42 -08:00
smpboot_hooks.h
…
socket.h
…
sockios.h
…
sparsemem.h
…
spinlock_types.h
locking: Convert raw_rwlock to arch_rwlock
2009-12-14 23:55:32 +01:00
spinlock.h
locking: Convert raw_rwlock functions to arch_rwlock
2009-12-14 23:55:32 +01:00
srat.h
…
stackprotector.h
…
stacktrace.h
perf: Drop useless check for ignored frame
2010-01-13 10:09:08 +01:00
stat.h
…
statfs.h
…
string_32.h
x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy
2009-09-28 16:43:15 -07:00
string_64.h
…
string.h
…
suspend_32.h
PM / x86: Save/restore MISC_ENABLE register
2010-06-08 00:32:49 +02:00
suspend_64.h
PM / x86: Save/restore MISC_ENABLE register
2010-06-08 00:32:49 +02:00
suspend.h
…
svm.h
KVM: x86: Push potential exception error code on task switches
2010-05-17 12:17:46 +03:00
swab.h
…
swiotlb.h
x86: Split swiotlb initialization into two stages
2009-12-15 13:01:57 +01:00
sync_bitops.h
…
sys_ia32.h
Add generic sys_olduname()
2010-03-12 15:52:32 -08:00
syscall.h
tracing: Unify arch_syscall_addr() implementations
2010-02-17 13:07:21 +01:00
syscalls.h
Add generic sys_olduname()
2010-03-12 15:52:32 -08:00
system_64.h
…
system.h
x86: Fix vsyscall on gcc 4.5 with -Os
2010-06-18 14:16:31 -07:00
tce.h
…
termbits.h
…
termios.h
…
thread_info.h
Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
2010-05-28 16:14:17 -07:00
time.h
…
timer.h
…
timex.h
…
tlb.h
…
tlbflush.h
…
topology.h
numa: x86_64: use generic percpu var numa_node_id() implementation
2010-05-27 09:12:57 -07:00
trampoline.h
x86: Use find_e820() instead of hard coded trampoline address
2009-12-11 09:28:22 +01:00
traps.h
x86: Merge simd_math_error() into math_error()
2010-05-03 13:39:29 -07:00
tsc.h
…
types.h
…
uaccess_32.h
x86: copy_from_user() should not return -EFAULT
2010-01-05 13:45:06 -08:00
uaccess_64.h
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:35:09 -08:00
uaccess.h
x86, 64-bit: Move K8 B step iret fixup to fault entry asm
2009-10-12 18:29:46 +02:00
ucontext.h
…
unaligned.h
…
unistd_32.h
Add generic sys_olduname()
2010-03-12 15:52:32 -08:00
unistd_64.h
Add generic sys_olduname()
2010-03-12 15:52:32 -08:00
unistd.h
…
user32.h
…
user_32.h
…
user_64.h
…
user.h
x86, ptrace: regset extensions to support xstate
2010-02-11 15:08:17 -08:00
vdso.h
…
vga.h
…
vgtod.h
…
virtext.h
…
vm86.h
…
vmi_time.h
…
vmi.h
…
vmx.h
KVM: VMX: Enable XSAVE/XRSTOR for guest
2010-08-01 10:46:31 +03:00
vsyscall.h
…
x86_init.h
x86: Add i8042 pre-detection hook to x86_platform_ops
2010-07-07 17:05:06 -07:00
xcr.h
…
xor_32.h
…
xor_64.h
…
xor.h
…
xsave.h
KVM: x86: XSAVE/XRSTOR live migration support
2010-08-01 10:46:37 +03:00