From: James Morse james.morse@arm.com
maillist inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I8XMTL CVE: NA
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Add the new flag field to the MADT's GICC structure.
'Online Capable' indicates a disabled CPU can be enabled later. See ACPI specification 6.5 Tabel 5.37: GICC CPU Interface Flags.
Signed-off-by: James Morse james.morse@arm.com Tested-by: Miguel Luis miguel.luis@oracle.com Tested-by: Vishnu Pajjuri vishnu@os.amperecomputing.com Tested-by: Jianyong Wu jianyong.wu@arm.com Signed-off-by: Russell King (Oracle) rmk+kernel@armlinux.org.uk Signed-off-by: liwei liwei728@huawei.com --- include/acpi/actbl2.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 8104c262bbae..f805bc581003 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -1047,6 +1047,7 @@ struct acpi_madt_generic_interrupt { /* ACPI_MADT_ENABLED (1) Processor is usable if set */ #define ACPI_MADT_PERFORMANCE_IRQ_MODE (1<<1) /* 01: Performance Interrupt Mode */ #define ACPI_MADT_VGIC_IRQ_MODE (1<<2) /* 02: VGIC Maintenance Interrupt mode */ +#define ACPI_MADT_GICC_CPU_CAPABLE (1<<3) /* 03: CPU is online capable */
/* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */