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linux/include/asm-generic
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Borislav Petkov 91ed140d6c x86/asm: Make sure verify_cpu() has a good stack 
04633df0c43d ("x86/cpu: Call verify_cpu() after having entered long mode too")
added the call to verify_cpu() for sanitizing CPU configuration.

The latter uses the stack minimally and it can happen that we land in
startup_64() directly from a 64-bit bootloader. Then we want to use our
own, known good stack.

Do that.

APs don't need this as the trampoline sets up a stack for them.

Reported-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mika Penttilä <mika.penttila@nextfour.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1459434062-31055-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-04-13 11:52:19 +02:00
..
bitops
bitops: Do not default to __clear_bit() for __clear_bit_unlock()
2016-03-21 10:50:48 +01:00
4level-fixup.h
mm, asm-generic: define PUD_SHIFT in <asm-generic/4level-fixup.h>
2015-02-11 17:06:03 -08:00
asm-offsets.h
asm-generic: Add common asm-offsets.h
2015-06-23 13:35:49 +09:00
atomic64.h
atomic: Provide atomic_{or,xor,and}
2015-07-27 14:06:24 +02:00
atomic-long.h
include/asm-generic/atomic-long.h: force inlining of some atomic_long operations
2016-03-17 15:09:34 -07:00
atomic.h
atomic, arch: Audit atomic_{read,set}()
2015-09-23 09:54:28 +02:00
audit_change_attr.h
audit: Modify a set of system calls in audit class definitions
2014-01-17 17:01:46 -05:00
audit_dir_write.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
audit_read.h
audit: support the "standard" <asm-generic/unistd.h>
2011-05-04 14:41:28 -04:00
audit_signal.h
…
audit_write.h
audit: Modify a set of system calls in audit class definitions
2014-01-17 17:01:46 -05:00
barrier.h
asm-generic: implement virt_xxx memory barriers
2016-01-12 20:46:59 +02:00
bitops.h
arch: Prepare for smp_mb__{before,after}_atomic()
2014-04-18 11:40:30 +02:00
bitsperlong.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
bug.h
asm-generic changes for 4.6
2016-03-24 23:13:48 -07:00
bugs.h
…
cache.h
…
cacheflush.h
asm-generic/cacheflush.h: flush icache when copying to user pages
2011-05-25 08:39:37 -07:00
checksum.h
ipv4: Update parameters for csum_tcpudp_magic to their original types
2016-03-13 23:55:13 -04:00
clkdev.h
asm-generic: COMMON_CLK defines __clk_{get,put}
2014-09-25 18:00:45 -07:00
cmpxchg-local.h
LLVMLinux: Remove warning about returning an uninitialized variable
2014-04-09 13:44:35 -07:00
cmpxchg.h
asm-generic: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
2015-10-15 00:21:13 +02:00
cputime_jiffies.h
sched, time: Fix build error with 64 bit cputime_t on 32 bit systems
2014-10-03 05:46:55 +02:00
cputime_nsecs.h
cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
2016-02-02 15:24:38 +01:00
cputime.h
cputime: Generic on-demand virtual cputime accounting
2013-01-27 19:23:27 +01:00
current.h
…
delay.h
asm-generic: delay.h fix udelay and ndelay for 8 bit args
2011-07-22 18:45:33 +02:00
device.h
…
div64.h
__div64_32(): make it overridable at compile time
2015-11-16 14:42:12 -05:00
dma-contiguous.h
asm-generic: Add dma-contiguous.h
2014-09-22 13:35:51 +02:00
dma.h
…
early_ioremap.h
Merge branch 'akpm' (patches from Andrew)
2015-09-08 17:52:23 -07:00
emergency-restart.h
…
exec.h
Split arch_align_stack() out from asm-generic/system.h
2012-03-28 18:30:03 +01:00
fb.h
…
fixmap.h
asm-generic: Fix local variable shadow in __set_fixmap_offset
2016-02-16 15:10:44 +00:00
ftrace.h
asm-generic headers: add ftrace.h
2011-03-17 09:19:04 +08:00
futex.h
sched/preempt, futex: Disable preemption in UP futex_atomic_cmpxchg_inatomic() explicitly
2015-05-19 08:39:16 +02:00
getorder.h
bitops: Add missing parentheses to new get_order macro
2012-02-24 10:39:27 -08:00
gpio.h
gpio: allow setting ARCH_NR_GPIOS from Kconfig
2016-02-19 00:22:54 +01:00
hardirq.h
Fix IRQ flag handling naming
2010-10-07 14:08:55 +01:00
hugetlb.h
mm: Fix generic hugetlb pte check return type.
2013-10-02 20:02:35 -04:00
hw_irq.h
…
ide_iops.h
…
int-ll64.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
io.h
x86/mm, asm-generic: Add IOMMU ioremap_uc() variant default
2015-07-21 10:47:03 +02:00
ioctl.h
include/asm-generic/ioctl.h: fix _IOC_TYPECHECK sparse error
2014-06-06 16:08:13 -07:00
iomap.h
x86/mm, asm-generic: Add ioremap_wt() for creating Write-Through mappings
2015-06-07 15:28:56 +02:00
irq_regs.h
core: Replace __get_cpu_var with __this_cpu_read if not used for an address.
2010-12-17 15:07:19 +01:00
irq_work.h
irq_work: Introduce arch_irq_work_has_interrupt()
2014-09-13 18:38:07 +02:00
irq.h
…
irqflags.h
Fix IRQ flag handling naming
2010-10-07 14:08:55 +01:00
Kbuild.asm
UAPI: Set up uapi/asm/Kbuild.asm
2012-10-02 18:01:56 +01:00
kdebug.h
asm-generic: kdebug.h: Checkpatch cleanup
2010-10-09 21:51:44 +02:00
kmap_types.h
asm-generic: remove km_type definitions
2012-07-24 15:27:30 +08:00
kvm_para.h
KVM: add kvm_para_available to asm-generic/kvm_para.h
2013-06-05 13:21:29 +03:00
libata-portmap.h
…
linkage.h
…
local64.h
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
local.h
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
mcs_spinlock.h
locking/mcs: Allow architecture specific asm files to be used for contended case
2014-02-09 21:18:52 +01:00
memory_model.h
mm: add PHYS_PFN, use it in __phys_to_pfn()
2016-01-14 16:00:49 -08:00
mm_hooks.h
mm/core, x86/mm/pkeys: Differentiate instruction fetches
2016-02-18 19:46:29 +01:00
mm-arch-hooks.h
mm: clean up per architecture MM hook header files
2015-07-17 16:39:53 -07:00
mmu_context.h
asm-generic: Remove asm-generic arch_bprm_mm_init()
2014-11-22 21:52:08 +01:00
mmu.h
asm-generic/mmu.h: Add support for FDPIC
2012-12-09 23:14:14 +01:00
module.h
Make most arch asm/module.h files use asm-generic/module.h
2012-09-28 14:31:03 +09:30
msi.h
asm-generic: Add msi.h
2014-11-23 13:01:47 +01:00
mutex-dec.h
locking/mutex: Use acquire/release semantics
2015-10-06 17:28:20 +02:00
mutex-null.h
arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
2013-06-26 12:10:55 +02:00
mutex-xchg.h
locking/mutex: Use acquire/release semantics
2015-10-06 17:28:20 +02:00
mutex.h
…
page.h
asm-generic: page.h: Remove useless get_user_page and free_user_page
2016-02-26 15:24:55 +01:00
param.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
parport.h
include: remove __dev* attributes.
2013-01-03 15:57:16 -08:00
pci_iomap.h
PCI: Add pci_iomap_wc() variants
2015-08-25 09:59:45 +02:00
pci.h
PCI: Remove unused pcibios_select_root() (again)
2015-06-08 07:56:21 -05:00
percpu.h
percpu: preffity percpu header files
2014-06-17 19:12:40 -04:00
pgalloc.h
…
pgtable-nopmd.h
…
pgtable-nopud.h
…
pgtable.h
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
2016-03-17 15:09:34 -07:00
preempt.h
sched/core: Create preempt_count invariant
2015-10-06 17:08:14 +02:00
ptrace.h
asm-generic/ptrace.h: start a common low level ptrace helper
2011-05-26 17:12:36 -07:00
qrwlock_types.h
locking/qrwlock: Rename ->lock to ->wait_lock
2015-09-18 09:27:29 +02:00
qrwlock.h
locking/qrwlock: Make use of _{acquire|release|relaxed}() atomics
2015-08-12 11:59:06 +02:00
qspinlock_types.h
locking/qspinlock: Move __ARCH_SPIN_LOCK_UNLOCKED to qspinlock_types.h
2016-02-29 10:02:43 +01:00
qspinlock.h
locking/qspinlock: Move __ARCH_SPIN_LOCK_UNLOCKED to qspinlock_types.h
2016-02-29 10:02:43 +01:00
resource.h
asm-generic: remove _STK_LIM_MAX
2014-05-15 00:32:09 +01:00
rtc.h
rtc: cmos: century support
2015-09-05 13:19:09 +02:00
rwsem.h
locking/rwsem: Use acquire/release semantics
2015-10-06 17:28:24 +02:00
seccomp.h
seccomp: allow COMPAT sigreturn overrides
2015-04-17 09:04:09 -04:00
sections.h
asm/sections: add helpers to check for section data
2016-01-16 11:17:24 -08:00
segment.h
…
serial.h
…
siginfo.h
constify copy_siginfo_to_user{,32}()
2013-11-09 00:16:29 -05:00
signal.h
unify default ptrace_signal_deliver
2012-11-29 00:01:23 -05:00
simd.h
crypto: create generic version of ablk_helper
2013-09-24 06:02:24 +10:00
sizes.h
ARM: 7430/1: sizes.h: move from asm-generic to <linux/sizes.h>
2012-06-28 17:14:34 +01:00
spinlock.h
…
statfs.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
string.h
…
switch_to.h
Split the switch_to() wrapper out of asm-generic/system.h
2012-03-28 18:30:03 +01:00
syscall.h
syscall.h: fix doc text for syscall_get_arch()
2014-09-23 16:20:00 -04:00
syscalls.h
burying unused conditionals
2013-02-14 09:21:15 -05:00
termios-base.h
…
termios.h
UAPI: (Scripted) Disintegrate include/asm-generic
2012-10-04 18:20:15 +01:00
timex.h
…
tlb.h
treewide: Remove old email address
2015-11-23 09:44:58 +01:00
tlbflush.h
BUG: headers with BUG/BUG_ON etc. need linux/bug.h
2012-03-04 17:54:34 -05:00
topology.h
topology: alternate fix for ia64 tiger_defconfig build breakage
2010-08-09 20:44:57 -07:00
trace_clock.h
tracing,x86: Add a TSC trace_clock
2012-11-13 15:48:27 -05:00
uaccess-unaligned.h
…
uaccess.h
asm-generic: {get,put}_user ptr argument evaluate only 1 time
2015-11-08 22:44:42 +09:00
unaligned.h
asm-generic: allow generic unaligned access if the arch supports it
2014-05-08 10:22:23 +02:00
unistd.h
We get rid of the general module prefix confusion with a binary config option,
2013-05-05 10:58:06 -07:00
user.h
asm-generic/user.h: Fix spelling in comment
2011-03-01 15:49:39 +01:00
vga.h
…
vmlinux.lds.h
x86/asm: Make sure verify_cpu() has a good stack
2016-04-13 11:52:19 +02:00
vtime.h
include/asm-generic/vtime.h: avoid zero-length file
2013-09-30 14:31:02 -07:00
word-at-a-time.h
Make asm/word-at-a-time.h available on all architectures
2015-07-08 16:41:55 -04:00
xor.h
asm-generic: xor: mark static functions as __maybe_unused
2012-10-03 21:21:06 +02:00