9fd34708c1
guest 21971-pod-accounting.patch - bnc#584204 - xm usb-list broken usb-list.patch - bnc#625520 - TP-L3: NMI cannot be triggered for xen kernel 21926-x86-pv-NMI-inject.patch - bnc#613529 - TP-L3: kdump kernel hangs when crash was initiated from xen kernel 21886-kexec-shutdown.patch - Upstream Intel patches to improve X2APIC handling. 21716-iommu-alloc.patch 21717-ir-qi.patch 21718-x2apic-logic.patch 21933-vtd-ioapic-write.patch 21953-msi-enable.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=71
25 lines
839 B
Diff
25 lines
839 B
Diff
Change default IO-APIC ack mode for single IO-APIC systems to old-style.
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Index: xen-4.0.0-testing/xen/arch/x86/io_apic.c
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===================================================================
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--- xen-4.0.0-testing.orig/xen/arch/x86/io_apic.c
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+++ xen-4.0.0-testing/xen/arch/x86/io_apic.c
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@@ -1562,7 +1562,7 @@ static unsigned int startup_level_ioapic
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return 0; /* don't check for pending */
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}
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-int __read_mostly ioapic_ack_new = 1;
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+int __read_mostly ioapic_ack_new = -1;
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static void setup_ioapic_ack(char *s)
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{
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if ( !strcmp(s, "old") )
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@@ -2066,6 +2066,8 @@ void __init setup_IO_APIC(void)
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else
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io_apic_irqs = ~PIC_IRQS;
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+ if (ioapic_ack_new < 0)
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+ ioapic_ack_new = (nr_ioapics > 1);
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printk("ENABLING IO-APIC IRQs\n");
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printk(" -> Using %s ACK method\n", ioapic_ack_new ? "new" : "old");
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