Toshi Kani a23b299b4a x86/mtrr: Fix PAT init handling when MTRR is disabled ...

commit ad025a73f0 upstream.

get_mtrr_state() calls pat_init() on BSP even if MTRR is disabled.
This results in calling pat_init() on BSP only since APs do not call
pat_init() when MTRR is disabled.  This inconsistency between BSP
and APs leads to undefined behavior.

Make BSP's calling condition to pat_init() consistent with AP's,
mtrr_ap_init() and mtrr_aps_init().

Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: elliott@hpe.com
Cc: konrad.wilk@oracle.com
Cc: paul.gortmaker@windriver.com
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/1458769323-24491-6-git-send-email-toshi.kani@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-08-16 09:30:49 +02:00

..

acpi

PM / sleep / x86: Fix crash on graph trace through x86 suspend

2016-03-09 15:34:52 -08:00

apic

x86/apic: Handle zero vector gracefully in clear_vector_irq()

2016-05-04 14:48:49 -07:00

cpu

x86/mtrr: Fix PAT init handling when MTRR is disabled

2016-08-16 09:30:49 +02:00

fpu

x86/fpu: Fix get_xsave_addr() behavior under virtualization

2015-11-12 09:34:58 +01:00

kprobes

kprobes/x86: Clear TF bit in fault on single-stepping

2016-07-27 09:47:29 -07:00

.gitignore

…

alternative.c

x86/alternatives: Make optimize_nops() interrupt safe and synced

2015-09-03 21:27:47 +02:00

amd_gart_64.c

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amd_nb.c

x86/amd_nb: Fix boot crash on non-AMD systems

2016-07-27 09:47:29 -07:00

apb_timer.c

x86/asm/tsc: Rename native_read_tsc() to rdtsc()

2015-07-06 15:23:28 +02:00

aperture_64.c

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apm_32.c

apm32: Fix cputime == jiffies assumption

2015-07-29 15:44:58 +02:00

asm-offsets_32.c

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asm-offsets_64.c

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asm-offsets.c

Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-11-03 21:05:40 -08:00

audit_64.c

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bootflag.c

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check.c

Merge tag 'v4.2-rc8' into x86/mm, before applying new changes

2015-08-25 09:59:19 +02:00

cpuid.c

x86: Drop bogus __ref / __refdata annotations

2015-07-20 18:57:20 +02:00

crash_dump_32.c

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crash_dump_64.c

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crash.c

x86/kexec: Remove obsolete 'in_crash_kexec' flag

2015-10-12 09:43:11 +02:00

devicetree.c

Merge tag 'module_init-device_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2015-07-02 10:30:48 -07:00

doublefault.c

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dumpstack_32.c

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dumpstack_64.c

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dumpstack.c

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e820.c

x86/e820: Deinline e820_type_to_string, save 126 bytes

2015-09-30 21:54:40 +02:00

early_printk.c

x86/early_printk: Set __iomem address space for IO

2015-10-13 21:45:56 +02:00

early-quirks.c

x86/quirks: Add early quirk to reset Apple AirPort card

2016-08-10 11:49:24 +02:00

espfix_64.c

Merge branch 'x86/urgent' into x86/asm, before applying dependent patches

2015-07-31 10:23:35 +02:00

ftrace.c

ftrace: Calculate the correct dyn_ftrace number to report to the userspace

2015-10-22 15:44:24 -04:00

head32.c

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head64.c

x86/kasan: Fix KASAN shadow region page tables

2015-07-06 14:53:13 +02:00

head_32.S

x86/microcode: Merge the early microcode loader

2015-10-21 11:22:12 +02:00

head_64.S

x86/cpu: Call verify_cpu() after having entered long mode too

2015-11-07 10:45:02 +01:00

head.c

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hpet.c

timers/x86/hpet: Type adjustments

2015-10-21 11:17:32 +02:00

hw_breakpoint.c

perf/x86/hw_breakpoints: Fix check for kernel-space breakpoints

2015-08-04 10:16:55 +02:00

i386_ksyms_32.c

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i8237.c

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i8253.c

clockevents/drivers/i8253: Migrate to new 'set-state' interface

2015-08-10 11:40:30 +02:00

i8259.c

x86/irq: Probe for PIC presence before allocating descs for legacy IRQs

2015-11-07 10:37:37 +01:00

io_delay.c

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ioport.c

x86/iopl: Fix iopl capability check on Xen PV

2016-04-12 09:08:38 -07:00

irq_32.c

genirq: Remove irq argument from irq flow handlers

2015-09-16 15:47:51 +02:00

irq_64.c

x86/irq: Drop unlikely before IS_ERR_OR_NULL

2015-10-01 11:08:56 +02:00

irq_work.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

irq.c

x86/irq: Call irq_force_move_complete with irq descriptor

2016-03-03 15:07:31 -08:00

irqinit.c

x86/irq: Store irq descriptor in vector array

2015-08-06 00:14:59 +02:00

jump_label.c

jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}

2015-08-03 11:34:12 +02:00

kdebugfs.c

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kexec-bzimage64.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2015-09-08 12:41:25 -07:00

kgdb.c

x86/kgdb: Replace bool_int_array[NR_CPUS] with bitmap

2015-09-28 10:13:31 +02:00

ksysfs.c

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kvm.c

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kvmclock.c

x86: kvmclock: abolish PVCLOCK_COUNTS_FROM_ZERO

2015-10-01 15:06:42 +02:00

ldt.c

x86/ldt: Fix small LDT allocation for Xen

2015-09-14 12:10:50 +02:00

livepatch.c

livepatch: Fix crash with !CONFIG_DEBUG_SET_MODULE_RONX

2015-11-06 11:10:03 +01:00

machine_kexec_32.c

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machine_kexec_64.c

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Makefile

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00

mcount_64.S

x86/ftrace: Add comment on static function tracing

2015-11-19 11:07:49 +01:00

mmconf-fam10h_64.c

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module.c

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mpparse.c

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msr.c

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nmi_selftest.c

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nmi.c

Merge branch 'x86/urgent' into x86/asm, before applying dependent patches

2015-07-31 10:23:35 +02:00

paravirt_patch_32.c

x86/asm/tsc, x86/paravirt: Remove read_tsc() and read_tscp() paravirt hooks

2015-07-06 15:23:26 +02:00

paravirt_patch_64.c

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paravirt-spinlocks.c

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paravirt.c

x86/paravirt: Replace the paravirt nop with a bona fide empty function

2015-09-22 22:40:28 +02:00

pci-calgary_64.c

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pci-dma.c

mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd

2015-11-06 17:50:42 -08:00

pci-iommu_table.c

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pci-nommu.c

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pci-swiotlb.c

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pcspeaker.c

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perf_regs.c

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pmem.c

libnvdimm, e820: skip module loading when no type-12

2015-11-30 09:10:33 -08:00

probe_roms.c

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process_32.c

sched/core, sched/x86: Kill thread_info::saved_preempt_count

2015-10-06 17:08:18 +02:00

process_64.c

x86/iopl/64: Properly context-switch IOPL on Xen PV

2016-04-12 09:08:38 -07:00

process.c

x86/vm86: Set thread.vm86 to NULL on fork/clone

2015-10-31 09:50:25 +01:00

ptrace.c

x86/entry: Move C entry and exit code to arch/x86/entry/common.c

2015-07-07 10:59:05 +02:00

pvclock.c

pvclock: Add CPU barriers to get correct version value

2016-08-10 11:49:27 +02:00

quirks.c

timers/x86/hpet: Type adjustments

2015-10-21 11:17:32 +02:00

reboot_fixups_32.c

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reboot.c

x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]

2016-01-31 11:28:54 -08:00

relocate_kernel_32.S

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relocate_kernel_64.S

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resource.c

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rtc.c

x86/paravirt: Prevent rtc_cmos platform device init on PV guests

2015-12-19 21:35:13 +01:00

setup_percpu.c

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setup.c

x86/microcode: Initialize the driver late when facilities are up

2015-11-23 10:39:49 +01:00

signal_compat.c

x86/compat: Move copy_siginfo_*_user32() to signal_compat.c

2015-07-06 15:28:55 +02:00

signal.c

x86/signal: Fix restart_syscall number for x32 tasks

2015-12-05 18:52:14 +01:00

smp.c

x86/mce: Clear Local MCE opt-in before kexec

2015-08-13 10:12:52 +02:00

smpboot.c

x86 smpboot: Re-enable init_udelay=0 by default on modern CPUs

2015-11-25 23:17:48 +01:00

stacktrace.c

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step.c

Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes

2015-08-18 09:39:47 +02:00

sys_x86_64.c

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sysfb_efi.c

x86/sysfb_efi: Fix valid BAR address range check

2016-05-11 11:21:20 +02:00

sysfb_simplefb.c

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sysfb.c

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tboot.c

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tce_64.c

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test_nx.c

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test_rodata.c

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time.c

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tls.c

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tls.h

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topology.c

x86: Drop bogus __ref / __refdata annotations

2015-07-20 18:57:20 +02:00

trace_clock.c

x86/asm/tsc: Add rdtsc_ordered() and use it in trivial call sites

2015-07-06 15:23:29 +02:00

tracepoint.c

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traps.c

x86/entry/traps: Don't force in_interrupt() to return true in IST handlers

2016-06-24 10:18:20 -07:00

tsc_msr.c

x86/tsc: Read all ratio bits from MSR_PLATFORM_INFO

2016-05-11 11:21:19 +02:00

tsc_sync.c

x86/asm/tsc/sync: Use rdtsc_ordered() in check_tsc_warp() and drop extra barriers

2015-07-06 15:23:29 +02:00

tsc.c

perf/x86: Fix time_shift in perf_event_mmap_page

2015-10-20 10:30:52 +02:00

uprobes.c

uprobes/x86: Make arch_uretprobe_is_alive(RP_CHECK_CALL) more clever

2015-07-31 10:38:06 +02:00

verify_cpu.S

x86/cpu: Call verify_cpu() after having entered long mode too

2015-11-07 10:45:02 +01:00

vm86_32.c

x86/vm86: Block non-root vm86(old) if mmap_min_addr != 0

2015-09-05 09:01:16 +02:00

vmlinux.lds.S

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00

vsmp_64.c

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x86_init.c

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x8664_ksyms_64.c

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