diff options
Diffstat (limited to 'arch/x86/kernel/apic/apic_common.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 35 |
1 files changed, 16 insertions, 19 deletions
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c index 02b4839478b1..2ed3b5c88c7f 100644 --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -4,8 +4,11 @@ * SPDX-License-Identifier: GPL-2.0 */ #include <linux/irq.h> +#include <linux/kvm_types.h> #include <asm/apic.h> +#include "local.h" + u32 apic_default_calc_apicid(unsigned int cpu) { return per_cpu(x86_cpu_to_apicid, cpu); @@ -16,31 +19,25 @@ u32 apic_flat_calc_apicid(unsigned int cpu) return 1U << cpu; } -bool default_check_apicid_used(physid_mask_t *map, int apicid) -{ - return physid_isset(apicid, *map); -} - -void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) -{ - *retmap = *phys_map; -} - -int default_cpu_present_to_apicid(int mps_cpu) +u32 default_cpu_present_to_apicid(int mps_cpu) { if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) - return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); + return (int)per_cpu(x86_cpu_to_apicid, mps_cpu); else return BAD_APICID; } -EXPORT_SYMBOL_GPL(default_cpu_present_to_apicid); +EXPORT_SYMBOL_FOR_KVM(default_cpu_present_to_apicid); -int default_check_phys_apicid_present(int phys_apicid) +/* + * Set up the logical destination ID when the APIC operates in logical + * destination mode. + */ +void default_init_apic_ldr(void) { - return physid_isset(phys_apicid, phys_cpu_present_map); -} + unsigned long val; -int default_apic_id_valid(u32 apicid) -{ - return (apicid < 255); + apic_write(APIC_DFR, APIC_DFR_FLAT); + val = apic_read(APIC_LDR) & ~APIC_LDR_MASK; + val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id()); + apic_write(APIC_LDR, val); } |