linux/arch/x86/kernel/acpi
Vitaly Kuznetsov febf240741 x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug
We may or may not have all possible CPUs in MADT on boot but in any
case we're overwriting x86_cpu_to_acpiid mapping with U32_MAX when
acpi_register_lapic() is called again on the CPU hotplug path:

acpi_processor_hotadd_init()
  -> acpi_map_cpu()
    -> acpi_register_lapic()

As we have the required acpi_id information in acpi_processor_hotadd_init()
propagate it to acpi_map_cpu() to always keep x86_cpu_to_acpiid
mapping valid.

Reported-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-07 13:34:56 +01:00
..
apei.c ACPI / APEI / ARM64: APEI initial support for ARM64 2016-12-02 00:24:34 +01:00
boot.c x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug 2017-02-07 13:34:56 +01:00
cppc_msr.c ACPI / CPPC: Add support for functional fixed hardware address 2016-09-08 23:02:14 +02:00
cstate.c nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
Makefile ACPI / CPPC: Add support for functional fixed hardware address 2016-09-08 23:02:14 +02:00
sleep.c x86/asm/head: Rename 'stack_start' -> 'initial_stack' 2016-08-18 18:41:29 +02:00
sleep.h ACPICA: Cleanup asmlinkage for ACPICA APIs. 2013-10-31 14:37:35 +01:00
wakeup_32.S x86: Load __USER_DS into DS/ES after resume 2015-06-22 14:40:03 +02:00
wakeup_64.S x86/suspend: fix false positive KASAN warning on suspend/resume 2016-12-06 02:22:44 +01:00