x86/platform/uv/BAU: Add APIC idt entry
BAU uses the old alloc_initr_gate90 method to setup its interrupt. This
fails silently as the BAU vector is in the range of APIC vectors that are
registered to the spurious interrupt handler. As a consequence BAU
broadcasts are not handled, and the broadcast source CPU hangs.
Update BAU to use new idt structure.
Fixes: dc20b2d526
("x86/idt: Move interrupt gate initialization to IDT code")
Signed-off-by: Andrew Banman <abanman@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mike Travis <mike.travis@hpe.com>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Russ Anderson <rja@hpe.com>
Cc: stable@vger.kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1522188546-196177-1-git-send-email-abanman@hpe.com
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@ -36,6 +36,7 @@ extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
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extern asmlinkage void kvm_posted_intr_nested_ipi(void);
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extern asmlinkage void error_interrupt(void);
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extern asmlinkage void irq_work_interrupt(void);
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extern asmlinkage void uv_bau_message_intr1(void);
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extern asmlinkage void spurious_interrupt(void);
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extern asmlinkage void thermal_interrupt(void);
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@ -140,6 +140,9 @@ static const __initconst struct idt_data apic_idts[] = {
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# ifdef CONFIG_IRQ_WORK
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INTG(IRQ_WORK_VECTOR, irq_work_interrupt),
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# endif
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#ifdef CONFIG_X86_UV
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INTG(UV_BAU_MESSAGE, uv_bau_message_intr1),
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#endif
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INTG(SPURIOUS_APIC_VECTOR, spurious_interrupt),
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INTG(ERROR_APIC_VECTOR, error_interrupt),
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#endif
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@ -2255,8 +2255,6 @@ static int __init uv_bau_init(void)
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init_uvhub(uvhub, vector, uv_base_pnode);
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}
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alloc_intr_gate(vector, uv_bau_message_intr1);
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for_each_possible_blade(uvhub) {
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if (uv_blade_nr_possible_cpus(uvhub)) {
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unsigned long val;
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