Messages in this thread Patch in this message | | | From | Ricardo Neri <> | Subject | [PATCH v7 05/24] x86/apic/vector: Skip cleanup for the NMI vector | Date | Wed, 1 Mar 2023 15:47:34 -0800 |
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The NMI vector is fixed. No cleanup is needed after updating affinity.
Cc: Andi Kleen <ak@linux.intel.com> Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
--- Changes since v6: * Introduced this patch.
Changes since v5: * N/A
Changes since v4: * N/A
Changes since v3: * N/A
Changes since v2: * N/A
Changes since v1: * N/A --- arch/x86/kernel/apic/vector.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index a4cf041427cb..3045823ecc1b 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -1050,6 +1050,10 @@ void send_cleanup_vector(struct irq_cfg *cfg) { struct apic_chip_data *apicd; + /* NMI has a fixed vector. No vector management required. */ + if (cfg->delivery_mode == APIC_DELIVERY_MODE_NMI) + return; + apicd = container_of(cfg, struct apic_chip_data, hw_irq_cfg); if (apicd->move_in_progress) __send_cleanup_vector(apicd); -- 2.25.1
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