diff options
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/acpi.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index f4c7d86dc0..e06c3ad71b 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -8,7 +8,7 @@ * Copyright (C) 2005-2009 coresystems GmbH * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, * Raptor Engineering - * Copyright (C) 2016-2017 Siemens AG + * Copyright (C) 2016-2019 Siemens AG * * ACPI FADT, FACS, and DSDT table support added by * Nick Barker <nick.barker9@btinternet.com>, and those portions @@ -48,6 +48,7 @@ #include <cpu/cpu.h> #include <cbfs.h> #include <version.h> +#include <commonlib/sort.h> u8 acpi_checksum(u8 *table, u32 length) { @@ -149,7 +150,7 @@ int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic) unsigned long acpi_create_madt_lapics(unsigned long current) { struct device *cpu; - int index = 0; + int index, apic_ids[CONFIG_MAX_CPUS], num_cpus = 0; for (cpu = all_devices; cpu; cpu = cpu->next) { if ((cpu->path.type != DEVICE_PATH_APIC) || @@ -158,9 +159,14 @@ unsigned long acpi_create_madt_lapics(unsigned long current) } if (!cpu->enabled) continue; + if (num_cpus >= ARRAY_SIZE(apic_ids)) + break; + apic_ids[num_cpus++] = cpu->path.apic.apic_id; + } + bubblesort(apic_ids, num_cpus, NUM_ASCENDING); + for (index = 0; index < num_cpus; index++) { current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, - index, cpu->path.apic.apic_id); - index++; + index, apic_ids[index]); } return current; |