xen/x86-ioapic-ack-default.patch
Charles Arnold 92ed83b0e8 - Add patches from proposed upstream series to load BIOS's from
the toolstack instead of embedding in hvmloader
  http://lists.xenproject.org/archives/html/xen-devel/2016-03/msg01626.html
  0001-libxc-Rework-extra-module-initialisation.patch,
  0002-libxc-Prepare-a-start-info-structure-for-hvmloader.patch,
  0003-configure-define-SEABIOS_PATH-and-OVMF_PATH.patch,
  0004-firmware-makefile-install-BIOS-blob.patch,
  0005-libxl-Load-guest-BIOS-from-file.patch,
  0006-xen-Move-the-hvm_start_info-C-representation-from-li.patch,
  0007-hvmloader-Grab-the-hvm_start_info-pointer.patch,
  0008-hvmloader-Locate-the-BIOS-blob.patch,
  0009-hvmloader-Check-modules-whereabouts-in-perform_tests.patch,
  0010-hvmloader-Load-SeaBIOS-from-hvm_start_info-modules.patch,
  0011-hvmloader-Load-OVMF-from-modules.patch,
  0012-hvmloader-Specific-bios_load-function-required.patch,
  0013-hvmloader-Always-build-in-SeaBIOS-and-OVMF-loader.patch,
  0014-configure-do-not-depend-on-SEABIOS_PATH-or-OVMF_PATH.patch
- Enable support for UEFI on x86_64 using the ovmf-x86_64-ms.bin
  firmware from qemu-ovmf-x86_64. The firmware is preloaded with
  Microsoft keys to more closely resemble firmware on real hardware
  FATE#320490

OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=416
2016-04-13 19:43:10 +00:00

19 lines
757 B
Diff

Change default IO-APIC ack mode for single IO-APIC systems to old-style.
Index: xen-4.7.0-testing/xen/arch/x86/io_apic.c
===================================================================
--- xen-4.7.0-testing.orig/xen/arch/x86/io_apic.c
+++ xen-4.7.0-testing/xen/arch/x86/io_apic.c
@@ -2030,7 +2030,10 @@ void __init setup_IO_APIC(void)
io_apic_irqs = ~PIC_IRQS;
printk("ENABLING IO-APIC IRQs\n");
- printk(" -> Using %s ACK method\n", ioapic_ack_new ? "new" : "old");
+ if (!directed_eoi_enabled && !ioapic_ack_forced) {
+ ioapic_ack_new = (nr_ioapics > 1);
+ printk(" -> Using %s ACK method\n", ioapic_ack_new ? "new" : "old");
+ }
if (ioapic_ack_new) {
ioapic_level_type.ack = irq_complete_move;