diff options
| author | Thomas Gleixner <[email protected]> | 2015-11-04 22:57:04 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2015-11-05 13:07:53 +0100 |
| commit | f2bffe8a3eef42a1cd3393d56acd9fe598d2119c (patch) | |
| tree | dd20c924b020e50cee29947b91bac1ef5c241689 | |
| parent | 5789a12e28f7bf6a37564a5fc9ebc60dc86659b5 (diff) | |
x86/apic: Implement single IPI for x2apic_phys
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Ingo Molnar <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Travis <[email protected]>
Cc: Daniel J Blueman <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_phys.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 662e9150ea6f..a1242e2c12e6 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -36,6 +36,14 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) return x2apic_enabled() && (x2apic_phys || x2apic_fadt_phys()); } +static void x2apic_send_IPI(int cpu, int vector) +{ + u32 dest = per_cpu(x86_cpu_to_apicid, cpu); + + x2apic_wrmsr_fence(); + __x2apic_send_IPI_dest(dest, vector, APIC_DEST_PHYSICAL); +} + static void __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest) { @@ -122,6 +130,7 @@ static struct apic apic_x2apic_phys = { .cpu_mask_to_apicid_and = default_cpu_mask_to_apicid_and, + .send_IPI = x2apic_send_IPI, .send_IPI_mask = x2apic_send_IPI_mask, .send_IPI_mask_allbutself = x2apic_send_IPI_mask_allbutself, .send_IPI_allbutself = x2apic_send_IPI_allbutself, |