This is a note to let you know that I've just added the patch titled
x86/xen: make CONFIG_XEN depend on CONFIG_X86_LOCAL_APIC
to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-xen-make-config_xen-depend-on-config_x86_local_apic.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 87ffd2b9bb74061c120f450e4d0f3409bb603ae0 Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Thu, 20 Aug 2015 11:33:41 +0100
Subject: x86/xen: make CONFIG_XEN depend on CONFIG_X86_LOCAL_APIC
From: David Vrabel <david.vrabel@xxxxxxxxxx>
commit 87ffd2b9bb74061c120f450e4d0f3409bb603ae0 upstream.
Since commit feb44f1f7a4ac299d1ab1c3606860e70b9b89d69 (x86/xen:
Provide a "Xen PV" APIC driver to support >255 VCPUs) Xen guests need
a full APIC driver and thus should depend on X86_LOCAL_APIC.
This fixes an i386 build failure with !SMP && !CONFIG_X86_UP_APIC by
disabling Xen support in this configuration.
Users needing Xen support in a non-SMP i386 kernel will need to enable
CONFIG_X86_UP_APIC.
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/xen/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -8,7 +8,7 @@ config XEN
select PARAVIRT_CLOCK
select XEN_HAVE_PVMMU
depends on X86_64 || (X86_32 && X86_PAE)
- depends on X86_TSC
+ depends on X86_LOCAL_APIC && X86_TSC
help
This is the Linux Xen port. Enabling this will allow the
kernel to boot in a paravirtualized environment under the
@@ -17,7 +17,7 @@ config XEN
config XEN_DOM0
def_bool y
depends on XEN && PCI_XEN && SWIOTLB_XEN
- depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
+ depends on X86_IO_APIC && ACPI && PCI
config XEN_PVHVM
def_bool y
Patches currently in stable-queue which might be from david.vrabel@xxxxxxxxxx are
queue-4.1/x86-xen-build-xen-pv-apic-driver-for-domu-as-well.patch
queue-4.1/x86-xen-make-config_xen-depend-on-config_x86_local_apic.patch
queue-4.1/xen-xenbus-don-t-leak-memory-when-unmapping-the-ring-on-hvm-backend.patch
--
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