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android_kernel_xiaomi_sm8450/arch/x86/kernel
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David Woodhouse b8ab21e017 x86/apic: Fix x2apic enablement without interrupt remapping 
[ Upstream commit 26573a97746c7a99f394f9d398ce91a8853b3b89 ]

Currently, Linux as a hypervisor guest will enable x2apic only if there are
no CPUs present at boot time with an APIC ID above 255.

Hotplugging a CPU later with a higher APIC ID would result in a CPU which
cannot be targeted by external interrupts.

Add a filter in x2apic_apic_id_valid() which can be used to prevent such
CPUs from coming online, and allow x2apic to be enabled even if they are
present at boot time.

Fixes: ce69a78450 ("x86/apic: Enable x2APIC without interrupt remapping under KVM")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201024213535.443185-2-dwmw2@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:52:59 +01:00
..
acpi
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
apic
x86/apic: Fix x2apic enablement without interrupt remapping
2020-12-30 11:52:59 +01:00
cpu
x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled
2020-12-10 17:52:37 +01:00
fpu
Merge tag 'x86_fpu_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-12 10:49:46 -07:00
kprobes
x86/kprobes: Fix optprobe to detect INT3 padding correctly
2020-12-12 15:25:17 +01:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
alternative.c
Merge tag 'x86-urgent-2020-10-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-27 14:39:29 -07:00
amd_gart_64.c
dma-mapping: split <linux/dma-mapping.h>
2020-10-06 07:07:03 +02:00
amd_nb.c
x86/amd_nb: Add AMD family 17h model 60h PCI IDs
2020-05-22 18:24:40 +02:00
apb_timer.c
x86/apb_timer: Drop unused TSC calibration
2020-05-27 13:05:59 +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
Merge tag 'x86-entry-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-03-30 19:14:28 -07:00
asm-offsets_64.c
x86/entry: Remove DBn stacks
2020-06-11 15:15:23 +02:00
asm-offsets.c
x86: remove address space overrides using set_fs()
2020-09-08 22:21:36 -04:00
audit_64.c
x86/audit: Fix a -Wmissing-prototypes warning for ia32_classify_syscall()
2020-05-19 18:03:07 +02:00
bootflag.c
…
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_core_32.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
crash_core_64.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
crash_dump_32.c
…
crash_dump_64.c
fs/core/vmcore: Move sev_active() reference to x86 arch code
2019-08-09 22:52:10 +10:00
crash.c
x86/crash: Correct the address boundary of function parameters
2020-08-07 01:32:00 +02:00
devicetree.c
x86_ioapic_Consolidate_IOAPIC_allocation
2020-09-16 16:52:32 +02:00
doublefault_32.c
x86/entry: Convert double fault exception to IDTENTRY_DF
2020-06-11 15:15:03 +02:00
dumpstack_32.c
x86/32: Remove CONFIG_DOUBLEFAULT
2020-04-14 14:24:05 +02:00
dumpstack_64.c
x86/dumpstack/64: Add noinstr version of get_stack_info()
2020-09-09 11:33:19 +02:00
dumpstack.c
x86/dumpstack: Do not try to access user space code of other tasks
2020-11-18 12:56:29 +01:00
e820.c
efi/fake_mem: arrange for a resource entry per efi_fake_mem instance
2020-10-13 18:38:27 -07:00
early_printk.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
early-quirks.c
x86/gpu: add RKL stolen memory support
2020-05-20 08:35:22 -07:00
ebda.c
…
eisa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 243
2019-06-19 17:09:07 +02:00
espfix_64.c
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
ftrace_32.S
x86: Change {JMP,CALL}_NOSPEC argument
2020-04-30 20:14:34 +02:00
ftrace_64.S
x86/ftrace: Do not jump to direct code in created trampolines
2020-06-29 11:42:48 -04:00
ftrace.c
x86/ftrace: Do not jump to direct code in created trampolines
2020-06-29 11:42:48 -04:00
head32.c
x86/boot: Mostly revert commit ae7e1238e6 ("Add ACPI RSDP address to setup_header")
2018-11-20 09:43:10 +01:00
head64.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
head_32.S
x86/xen: remove 32-bit Xen PV guest support
2020-08-11 08:26:48 +02:00
head_64.S
x86/head/64: Check SEV encryption before switching to kernel page-table
2020-10-29 18:09:59 +01:00
hpet.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
hw_breakpoint.c
x86/debug: Change thread.debugreg6 to thread.virtual_dr6
2020-09-04 15:12:58 +02:00
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/i8259: Use printk_deferred() to prevent deadlock
2020-07-29 16:27:16 +02:00
idt.c
Merge tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-14 10:21:34 -07:00
ima_arch.c
Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core
2020-02-26 15:21:22 +01:00
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/ioperm: Prevent a memory leak when fork fails
2020-05-28 21:36:20 +02:00
irq_32.c
x86/irq: Rework handle_irq() for 64-bit
2020-06-11 15:15:12 +02:00
irq_64.c
x86/irq: Make run_on_irqstack_cond() typesafe
2020-09-22 22:13:34 +02:00
irq_work.c
x86/entry: Convert various system vectors
2020-06-11 15:15:14 +02:00
irq.c
x86/irq: Make run_on_irqstack_cond() typesafe
2020-09-22 22:13:34 +02:00
irqflags.S
x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_*
2019-10-18 11:58:33 +02:00
irqinit.c
x86/headers: Remove APIC headers from <asm/smp.h>
2020-08-06 16:13:09 +02:00
itmt.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
jailhouse.c
locking/seqlock, headers: Untangle the spaghetti monster
2020-08-06 16:13:13 +02:00
jump_label.c
x86/jump_label: Move 'inline' keyword placement
2020-03-27 11:05:41 +01:00
kdebugfs.c
x86/boot: Introduce setup_indirect
2019-11-12 16:21:15 +01:00
kexec-bzimage64.c
x86/kexec: Use up-to-dated screen_info copy to fill boot params
2020-10-14 17:05:03 +02:00
kgdb.c
x86/debug: Change thread.debugreg6 to thread.virtual_dr6
2020-09-04 15:12:58 +02:00
ksysfs.c
x86/boot: Introduce setup_indirect
2019-11-12 16:21:15 +01:00
kvm.c
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2020-10-23 11:17:56 -07:00
kvmclock.c
x86/vdso: Use generic VDSO clock mode storage
2020-02-17 14:40:23 +01:00
ldt.c
x86/ldt: use "pr_info_once()" instead of open-coding it badly
2020-07-05 12:50:20 -07:00
machine_kexec_32.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
machine_kexec_64.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
Makefile
x86/head/64: Disable stack protection for head$(BITS).o
2020-10-19 13:11:00 +02:00
mmconf-fam10h_64.c
…
module.c
mm: don't include asm/pgtable.h if linux/mm.h is already included
2020-06-09 09:39:13 -07:00
mpparse.c
Merge tag 'x86-irq-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-12 11:40:41 -07:00
msr.c
x86/msr: Make source of unrecognised MSR writes unambiguous
2020-08-22 11:40:38 +02:00
nmi_selftest.c
…
nmi.c
Merge tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-14 10:21:34 -07:00
paravirt_patch.c
x86/paravirt: Remove 32-bit support from CONFIG_PARAVIRT_XXL
2020-08-15 13:52:11 +02:00
paravirt-spinlocks.c
x86/paravirt: Use a single ops structure
2018-09-03 16:50:35 +02:00
paravirt.c
x86/paravirt: Remove set_pte_at() pv-op
2020-08-15 13:52:12 +02:00
pci-dma.c
dma-mapping: move dma-debug.h to kernel/dma/
2020-10-06 07:07:05 +02:00
pci-iommu_table.c
…
pci-swiotlb.c
dma-mapping: fix filename references
2019-09-03 08:36:30 +02:00
pcspeaker.c
…
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
platform-quirks.c
…
pmem.c
…
probe_roms.c
maccess: make get_kernel_nofault() check for minimal type compatibility
2020-06-18 12:10:37 -07:00
process_32.c
x86/dumpstack: Add log_lvl to __show_regs()
2020-07-22 23:56:53 +02:00
process_64.c
x86/fsgsbase: Replace static_cpu_has() with boot_cpu_has()
2020-08-24 18:18:32 +02:00
process.c
sched/idle: Fix arch_cpu_idle() vs tracing
2020-11-24 16:47:35 +01:00
process.h
x86: Use the correct SPDX License Identifier in headers
2019-10-01 20:31:35 +02:00
ptrace.c
x86/debug: Change thread.debugreg6 to thread.virtual_dr6
2020-09-04 15:12:58 +02:00
pvclock.c
x86/vdso: Use generic VDSO clock mode storage
2020-02-17 14:40:23 +01:00
quirks.c
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
2020-10-06 11:18:04 +02:00
reboot_fixups_32.c
…
reboot.c
objtool: Rename frame.h -> objtool.h
2020-09-10 10:43:13 -05:00
relocate_kernel_32.S
x86/asm: Annotate relocate_kernel_{32,64}.c
2019-10-18 09:53:19 +02:00
relocate_kernel_64.S
x86/kexec: Make relocate_kernel_64.S objtool clean
2020-03-25 18:28:28 +01:00
resource.c
…
rtc.c
…
setup_percpu.c
x86/mm: remove vmalloc faulting
2020-06-02 10:59:12 -07:00
setup.c
Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping
2020-10-15 14:43:29 -07:00
sev_verify_cbit.S
x86/boot/compressed/64: Check SEV encryption in 64-bit boot-path
2020-10-29 18:06:52 +01:00
sev-es-shared.c
x86/boot/compressed/64: Sanity-check CPUID results in the early #VC handler
2020-10-29 13:48:49 +01:00
sev-es.c
x86/sev-es: Do not support MMIO to/from encrypted memory
2020-10-29 19:27:42 +01:00
signal_compat.c
arm64: mte: Add specific SIGSEGV codes
2020-09-04 12:46:06 +01:00
signal.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
smp.c
x86/entry: Convert reschedule interrupt to IDTENTRY_SYSVEC_SIMPLE
2020-06-11 15:15:16 +02:00
smpboot.c
x86/smpboot: Load TSS and getcpu GDT entry before loading IDT
2020-09-09 11:33:20 +02:00
stacktrace.c
stacktrace: Remove reliable argument from arch_stack_walk() callback
2020-09-18 14:24:16 +01:00
static_call.c
static_call: Allow early init
2020-09-01 09:58:06 +02:00
step.c
…
sys_ia32.c
x86: switch to kernel_clone()
2020-08-20 13:12:58 +02:00
sys_x86_64.c
x86: Remove unneeded includes
2020-03-21 16:03:25 +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
x86/sysfb: Fix check for bad VRAM size
2020-01-20 10:57:53 +01:00
sysfb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
tboot.c
x86/tboot: Don't disable swiotlb when iommu is forced on
2020-11-25 12:07:32 +00:00
time.c
Merge tag 'x86-urgent-2020-06-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-06-11 15:54:31 -07:00
tls.c
x86: switch to ->regset_get()
2020-07-27 14:31:07 -04:00
tls.h
x86: switch to ->regset_get()
2020-07-27 14:31:07 -04:00
topology.c
x86/headers: Remove APIC headers from <asm/smp.h>
2020-08-06 16:13:09 +02:00
trace_clock.c
…
tracepoint.c
x86/entry: Convert reschedule interrupt to IDTENTRY_SYSVEC_SIMPLE
2020-06-11 15:15:16 +02:00
traps.c
x86/split-lock: Avoid returning with interrupts enabled
2020-12-26 16:02:38 +01:00
tsc_msr.c
Merge tag 'x86-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-15 10:38:03 -07:00
tsc_sync.c
x86: Fix a handful of typos
2020-02-16 20:58:06 +01:00
tsc.c
x86/tsc: Use seqcount_latch_t
2020-09-10 11:19:29 +02:00
umip.c
x86/umip: Factor out instruction decoding
2020-09-07 19:45:24 +02:00
unwind_frame.c
Merge tag 'fork-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-08-04 14:47:45 -07:00
unwind_guess.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
unwind_orc.c
Merge tag 'x86-urgent-2020-10-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-27 14:39:29 -07:00
uprobes.c
x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes
2020-12-06 09:58:13 +01:00
verify_cpu.S
x86/asm: Annotate local pseudo-functions
2019-10-18 10:04:04 +02:00
vm86_32.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
vmlinux.lds.S
Merge tag 'core-static_call-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-10-12 13:58:15 -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/irq: Cleanup the arch_*_msi_irqs() leftovers
2020-09-16 16:52:38 +02:00