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acpi: add and use defines for LAPIC feature flags

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Both the processor local APIC structure and the processor local x2APIC
structure use the same flag bit definitions. ACPI spec 6.4 was used as a
reference.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8101c2ea874c8b12b130dbe9a0a7e0f0d94adffa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82641
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
This commit is contained in:
Felix Held 2024-05-24 14:16:20 +02:00 committed by Nico Huber
parent 824d9303f2
commit 4244527d8c
2 changed files with 6 additions and 2 deletions
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4
src/acpi/acpi_apic.c
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@ -11,7 +11,7 @@ static int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
{
lapic->type = LOCAL_APIC; /* Local APIC structure */
lapic->length = sizeof(acpi_madt_lapic_t);
lapic->flags = (1 << 0); /* Processor/LAPIC enabled */
lapic->flags = ACPI_MADT_LAPIC_ENABLED;
lapic->processor_id = cpu;
lapic->apic_id = apic;
@ -23,7 +23,7 @@ static int acpi_create_madt_lx2apic(acpi_madt_lx2apic_t *lapic, u32 cpu, u32 api
lapic->type = LOCAL_X2APIC; /* Local APIC structure */
lapic->reserved = 0;
lapic->length = sizeof(acpi_madt_lx2apic_t);
lapic->flags = (1 << 0); /* Processor/LAPIC enabled */
lapic->flags = ACPI_MADT_LAPIC_ENABLED;
lapic->processor_id = cpu;
lapic->x2apic_id = apic;

4
src/include/acpi/acpi.h
View File

@ -726,6 +726,10 @@ typedef struct acpi_madt_lapic {
#define ACPI_MADT_MAX_LAPIC_ID 0xfe
/* MADT Local APIC Feature Flags */
#define ACPI_MADT_LAPIC_ENABLED (1 << 0)
#define ACPI_MADT_LAPIC_ONLINE_CAPABLE (1 << 1)
/* MADT: Local APIC NMI Structure */
typedef struct acpi_madt_lapic_nmi {
u8 type; /* Type (4) */