iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/x86/kernel
History
Bandan Das 558682b529 x86/apic: Include the LDR when clearing out APIC registers 
Although APIC initialization will typically clear out the LDR before
setting it, the APIC cleanup code should reset the LDR.

This was discovered with a 32-bit KVM guest jumping into a kdump
kernel. The stale bits in the LDR triggered a bug in the KVM APIC
implementation which caused the destination mapping for VCPUs to be
corrupted.

Note that this isn't intended to paper over the KVM APIC bug. The kernel
has to clear the LDR when resetting the APIC registers except when X2APIC
is enabled.

This lacks a Fixes tag because missing to clear LDR goes way back into pre
git history.

[ tglx: Made x2apic_enabled a function call as required ]

Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20190826101513.5080-3-bsd@redhat.com
2019-08-26 20:00:57 +02:00
..
acpi
x86/acpi/cstate: Add Zhaoxin processors support for cache flush policy in C3
2019-06-22 11:45:58 +02:00
apic
x86/apic: Include the LDR when clearing out APIC registers
2019-08-26 20:00:57 +02:00
cpu
x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
2019-08-19 19:42:52 +02:00
fpu
Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 17:28:57 -07:00
kprobes
It's been a relatively busy cycle for docs:
2019-07-09 12:34:26 -07:00
.gitignore
…
alternative.c
x86/alternatives: Fix int3_emulate_call() selftest stack corruption
2019-07-09 22:39:15 +02:00
amd_gart_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 213
2019-05-30 11:29:54 -07:00
amd_nb.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 17:27:24 -07:00
apb_timer.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
aperture_64.c
x86/gart: Exclude GART aperture from kcore
2019-03-23 12:11:49 +01:00
apm_32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118
2019-05-24 17:39:02 +02:00
asm-offsets_32.c
x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler
2018-07-20 01:11:36 +02:00
asm-offsets_64.c
x86/irq/64: Split the IRQ stack into its own pages
2019-04-17 15:37:02 +02:00
asm-offsets.c
x86/paravirt: Make read_cr2() CALLEE_SAVE
2019-07-17 23:17:37 +02:00
audit_64.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bootflag.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
check.c
x86/headers: Fix -Wmissing-prototypes warning
2018-11-23 07:59:59 +01:00
cpuid.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 142
2019-05-30 11:25:17 -07:00
crash_dump_32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crash_dump_64.c
x86: Fix various typos in comments
2018-12-03 10:49:13 +01:00
crash.c
Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-09 11:52:34 -07:00
devicetree.c
x86/headers: Fix -Wmissing-prototypes warning
2018-11-23 07:59:59 +01:00
doublefault.c
x86/entry: Fix assumptions that the HW TSS is at the beginning of cpu_tss
2017-12-17 13:59:55 +01:00
dumpstack_32.c
x86/irq/32: Rename hard/softirq_stack to hard/softirq_stack_ptr
2019-04-17 15:24:18 +02:00
dumpstack_64.c
x86/irq/64: Rename irq_stack_ptr to hardirq_stack_ptr
2019-04-17 15:27:10 +02:00
dumpstack.c
x86/process: Don't mix user/kernel regs in 64bit __show_regs()
2018-09-06 14:33:12 +02:00
e820.c
x86/e820: Use proper booleans instead of 0/1
2019-07-16 23:13:49 +02:00
early_printk.c
efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation
2019-02-04 08:27:30 +01:00
early-quirks.c
x86/gpu: add ElkhartLake to gen11 early quirks
2019-04-01 10:29:32 -07:00
ebda.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
eisa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 243
2019-06-19 17:09:07 +02:00
espfix_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
ftrace_32.S
x86/stackframe/32: Provide consistent pt_regs
2019-06-25 10:23:47 +02:00
ftrace_64.S
x86/stackframe, x86/ftrace: Add pt_regs frame annotations
2019-06-25 10:23:47 +02:00
ftrace.c
The main changes in this release include:
2019-07-18 11:51:00 -07:00
head32.c
x86/boot: Mostly revert commit ae7e1238e68f2a ("Add ACPI RSDP address to setup_header")
2018-11-20 09:43:10 +01:00
head64.c
x86/boot/64: Add missing fixup_pointer() for next_early_pgt access
2019-06-26 07:25:09 +02:00
head_32.S
x86/pgtable/32: Allocate 8k page-tables when PTI is enabled
2018-07-20 01:11:41 +02:00
head_64.S
x86/irq/64: Update stale comment
2019-07-22 10:54:27 +02:00
hpet.c
x86/hpet: Undo the early counter is counting check
2019-07-25 12:21:32 +02:00
hw_breakpoint.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
i8237.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
i8253.c
x86/timer: Skip PIT initialization on modern chipsets
2019-06-29 11:35:35 +02:00
i8259.c
x86: Don't include linux/irq.h from asm/hardirq.h
2018-08-05 09:53:13 +02:00
idt.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 11:22:57 -07:00
ima_arch.c
x86/ima: check EFI SetupMode too
2019-05-29 23:20:46 -04:00
io_delay.c
x86/io_delay: Define IO_DELAY macros in C instead of Kconfig
2019-05-24 08:46:06 +02:00
ioport.c
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
2018-04-02 20:16:12 +02:00
irq_32.c
x86/irq/32: Handle irq stack allocation failure proper
2019-04-17 15:31:42 +02:00
irq_64.c
x86/irq/64: Remove stack overflow debug code
2019-04-17 15:41:48 +02:00
irq_work.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq.c
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 17:49:45 -07:00
irqflags.S
x86/paravirt: Make native_save_fl() extern inline
2018-07-03 10:56:27 +02:00
irqinit.c
x86/irq/32: Handle irq stack allocation failure proper
2019-04-17 15:31:42 +02:00
itmt.c
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
jailhouse.c
x86: Add "nopv" parameter to disable PV extensions
2019-07-17 08:09:58 +02:00
jump_label.c
x86/jump_label: Make tp_vec_nr static
2019-06-25 09:22:14 +02:00
kdebugfs.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
kexec-bzimage64.c
It's been a relatively busy cycle for docs:
2019-07-09 12:34:26 -07:00
kgdb.c
x86/stackframe/32: Provide consistent pt_regs
2019-06-25 10:23:47 +02:00
ksysfs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
kvm.c
KVM/arm fixes for 5.3
2019-08-09 16:53:39 +02:00
kvmclock.c
x86: kvmguest: use TSC clocksource if invariant TSC is exposed
2019-02-20 22:48:52 +01:00
ldt.c
x86: Convert some slow-path static_cpu_has() callers to boot_cpu_has()
2019-04-08 12:13:34 +02:00
livepatch.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
2019-05-21 11:28:45 +02:00
machine_kexec_32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
machine_kexec_64.c
Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-09 11:52:34 -07:00
Makefile
Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 17:34:44 -07:00
mmconf-fam10h_64.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
module.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
mpparse.c
x86/boot: Fix memory leak in default_get_smp_config()
2019-07-16 23:13:48 +02:00
msr.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 142
2019-05-30 11:25:17 -07:00
nmi_selftest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nmi.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
paravirt_patch.c
x86/paravirt: Standardize 'insn_buff' variable names
2019-04-29 16:05:49 +02:00
paravirt-spinlocks.c
x86/paravirt: Use a single ops structure
2018-09-03 16:50:35 +02:00
paravirt.c
x86/paravirt: Make read_cr2() CALLEE_SAVE
2019-07-17 23:17:37 +02:00
pci-calgary_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
pci-dma.c
docs: fix broken documentation links
2019-06-08 13:42:13 -06:00
pci-iommu_table.c
x86/iommu: Use NULL instead of 0
2018-08-02 14:33:19 +02:00
pci-swiotlb.c
dma-direct: merge swiotlb_dma_ops into the dma_direct code
2018-12-13 21:06:17 +01:00
pcspeaker.c
x86/platform/pcspeaker: Use PTR_ERR_OR_ZERO() to fix ptr_ret.cocci warning
2018-07-24 09:46:42 +02:00
perf_regs.c
perf/x86/regs: Check reserved bits
2019-06-24 19:19:24 +02:00
platform-quirks.c
x86/i8237: Register device based on FADT legacy boot flag
2018-04-27 16:44:29 +02:00
pmem.c
resource: Provide resource struct in resource walk callback
2017-11-07 15:35:57 +01:00
probe_roms.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
process_32.c
x86/stackframe/32: Provide consistent pt_regs
2019-06-25 10:23:47 +02:00
process_64.c
x86/process: Delete useless check for dead process with LDT
2019-07-17 00:42:27 +02:00
process.c
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-07 10:24:10 -07:00
process.h
x86/speculation: Change misspelled STIPB to STIBP
2018-12-06 11:49:15 +01:00
ptrace.c
x86/ptrace: Mark expected switch fall-through
2019-08-07 15:12:01 +02:00
pvclock.c
x86/vdso: Switch to generic vDSO implementation
2019-06-22 21:21:10 +02:00
quirks.c
x86/headers: Fix -Wmissing-prototypes warning
2018-11-23 07:59:59 +01:00
reboot_fixups_32.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reboot.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 15:32:35 -07:00
relocate_kernel_32.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
relocate_kernel_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
resource.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtc.c
x86: Convert x86_platform_ops to timespec64
2018-05-19 14:03:14 +02:00
setup_percpu.c
x86/irq/64: Split the IRQ stack into its own pages
2019-04-17 15:37:02 +02:00
setup.c
Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-09 11:52:34 -07:00
signal_compat.c
signal: Add TRAP_UNK si_code for undiagnosted trap exceptions
2018-04-25 10:40:56 -05:00
signal.c
x86: use static_cpu_has in uaccess region to avoid instrumentation
2019-07-12 11:05:42 -07:00
smp.c
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 11:22:57 -07:00
smpboot.c
Revert "x86/paravirt: Set up the virt_spin_lock_key after static keys get initialized"
2019-07-17 08:09:57 +02:00
stacktrace.c
x86/stacktrace: Prevent access_ok() warnings in arch_stack_walk_user()
2019-07-22 10:42:36 +02:00
step.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sys_x86_64.c
x86/compat: Adjust in_compat_syscall() to generic code under !COMPAT
2018-11-01 12:59:25 +01:00
sysfb_efi.c
x86/sysfb_efi: Add quirks for some devices with swapped width and height
2019-07-22 10:47:11 +02:00
sysfb_simplefb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sysfb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
tboot.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335
2019-06-05 17:37:06 +02:00
tce_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
time.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 16:59:34 -07:00
tls.c
x86/tls: Fix possible spectre-v1 in do_get_thread_area()
2019-06-27 23:48:04 +02:00
tls.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 193
2019-05-30 11:29:21 -07:00
topology.c
x86/topology: Make DEBUG_HOTPLUG_CPU0 pr_info() more descriptive
2019-04-19 19:42:57 +02:00
trace_clock.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tracepoint.c
x86/kernel: Fix more -Wmissing-prototypes warnings
2018-12-08 12:24:35 +01:00
traps.c
x86/mm, tracing: Fix CR2 corruption
2019-07-17 23:17:38 +02:00
tsc_msr.c
x86/apic: Rename 'lapic_timer_frequency' to 'lapic_timer_period'
2019-05-09 11:06:49 +02:00
tsc_sync.c
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 19:07:38 -08:00
tsc.c
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 17:27:24 -07:00
umip.c
signal: Remove the task parameter from force_sig_fault
2019-05-29 09:31:43 -05:00
unwind_frame.c
x86/stackframe/32: Provide consistent pt_regs
2019-06-25 10:23:47 +02:00
unwind_guess.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
unwind_orc.c
Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-08 16:59:34 -07:00
uprobes.c
uprobes/x86: Fix detection of 32-bit user mode
2019-08-26 15:55:09 +02:00
verify_cpu.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
vm86_32.c
signal: Remove task parameter from force_sig
2019-05-27 09:36:28 -05:00
vmlinux.lds.S
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-07-11 13:54:00 -07:00
vsmp_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 346
2019-06-05 17:37:08 +02:00
x86_init.c
x86/xen: Add "nopv" support for HVM guest
2019-07-17 08:09:59 +02:00