redonkable/alistair23-linux
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Merge branches 'acpi-init' and 'acpi-hotplug'

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* acpi-init:
  ACPI / init: Run acpi_early_init() before timekeeping_init()

* acpi-hotplug:
  ACPI / memhotplug: add parameter to disable memory hotplug
This commit is contained in:
Rafael J. Wysocki 2014-01-17 01:57:26 +01:00
parent 380062bd66 73f7d1ca32 00159a2013
commit 8341ecc9f4
3 changed files with 16 additions and 1 deletions
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3
Documentation/kernel-parameters.txt
View file

@ -343,6 +343,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
no: ACPI OperationRegions are not marked as reserved,
no further checks are performed.
acpi_no_memhotplug [ACPI] Disable memory hotplug. Useful for kdump
kernels.
add_efi_memmap [EFI; X86] Include EFI memory map in
kernel's map of available physical RAM.

12
drivers/acpi/acpi_memhotplug.c
View file

@ -360,7 +360,19 @@ static void acpi_memory_device_remove(struct acpi_device *device)
acpi_memory_device_free(mem_device);
}
static bool __initdata acpi_no_memhotplug;
void __init acpi_memory_hotplug_init(void)
{
if (acpi_no_memhotplug)
return;
acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory");
}
static int __init disable_acpi_memory_hotplug(char *str)
{
acpi_no_memhotplug = true;
return 1;
}
__setup("acpi_no_memhotplug", disable_acpi_memory_hotplug);

2
init/main.c
View file

@ -565,6 +565,7 @@ asmlinkage void __init start_kernel(void)
init_timers();
hrtimers_init();
softirq_init();
acpi_early_init();
timekeeping_init();
time_init();
sched_clock_postinit();
@ -641,7 +642,6 @@ asmlinkage void __init start_kernel(void)
check_bugs();
acpi_early_init(); /* before LAPIC and SMP init */
sfi_init_late();
if (efi_enabled(EFI_RUNTIME_SERVICES)) {