Patch "KVM: arm: use GIC support unconditionally" has been added to the 4.2-stable tree

Patch "KVM: arm: use GIC support unconditionally" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    KVM: arm: use GIC support unconditionally

to the 4.2-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:
     kvm-arm-use-gic-support-unconditionally.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 4a5d69b73948d0e03cd38d77dc11edb2e707165f Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 12 Oct 2015 15:22:31 +0200
Subject: KVM: arm: use GIC support unconditionally

From: Arnd Bergmann <arnd@arndb.de>

commit 4a5d69b73948d0e03cd38d77dc11edb2e707165f upstream.

The vgic code on ARM is built for all configurations that enable KVM,
but the parent_data field that it references is only present when
CONFIG_IRQ_DOMAIN_HIERARCHY is set:

virt/kvm/arm/vgic.c: In function 'kvm_vgic_map_phys_irq':
virt/kvm/arm/vgic.c:1781:13: error: 'struct irq_data' has no member named 'parent_data'

This flag is implied by the GIC driver, and indeed the VGIC code only
makes sense if a GIC is present. This changes the CONFIG_KVM symbol
to always select GIC, which avoids the issue.

Fixes: 662d9715840 ("arm/arm64: KVM: Kill CONFIG_KVM_ARM_{VGIC,TIMER}")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm/kvm/Kconfig |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -21,6 +21,7 @@ config KVM
 	depends on MMU && OF
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
+	select ARM_GIC
 	select HAVE_KVM_CPU_RELAX_INTERCEPT
 	select HAVE_KVM_ARCH_TLB_FLUSH_ALL
 	select KVM_MMIO


Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.2/kvm-arm-use-gic-support-unconditionally.patch
queue-4.2/bus-arm-ccn-fix-irq-affinity-setting-on-cpu-migration.patch