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authorChristoffer Dall <christoffer.dall@linaro.org>2015-03-11 16:21:31 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2015-03-12 17:15:27 +0300
commit662d9715840aef44dcb573b0f9fab9e8319c868a (patch)
tree8c2800bd7b58972618fa820a57b03cdfca01d1c9 /arch/arm/kvm/Kconfig
parent69ff5c619cb350f43fbab2a491b4b66de7e96959 (diff)
downloadlinux-662d9715840aef44dcb573b0f9fab9e8319c868a.tar.xz
arm/arm64: KVM: Kill CONFIG_KVM_ARM_{VGIC,TIMER}
We can definitely decide at run-time whether to use the GIC and timers or not, and the extra code and data structures that we allocate space for is really negligable with this config option, so I don't think it's worth the extra complexity of always having to define stub static inlines. The !CONFIG_KVM_ARM_VGIC/TIMER case is pretty much an untested code path anyway, so we're better off just getting rid of it. Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/kvm/Kconfig')
-rw-r--r--arch/arm/kvm/Kconfig29
1 files changed, 6 insertions, 23 deletions
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 338ace78ed18..7b6347bbb413 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -18,6 +18,7 @@ if VIRTUALIZATION
config KVM
bool "Kernel-based Virtual Machine (KVM) support"
+ depends on MMU && OF
select PREEMPT_NOTIFIERS
select ANON_INODES
select HAVE_KVM_CPU_RELAX_INTERCEPT
@@ -26,10 +27,11 @@ config KVM
select KVM_ARM_HOST
select KVM_GENERIC_DIRTYLOG_READ_PROTECT
select SRCU
- depends on ARM_VIRT_EXT && ARM_LPAE
+ select MMU_NOTIFIER
+ select HAVE_KVM_IRQCHIP
+ depends on ARM_VIRT_EXT && ARM_LPAE && ARM_ARCH_TIMER
---help---
- Support hosting virtualized guest machines. You will also
- need to select one or more of the processor modules below.
+ Support hosting virtualized guest machines.
This module provides access to the hardware capabilities through
a character device node named /dev/kvm.
@@ -37,10 +39,7 @@ config KVM
If unsure, say N.
config KVM_ARM_HOST
- bool "KVM host support for ARM cpus."
- depends on KVM
- depends on MMU
- select MMU_NOTIFIER
+ bool
---help---
Provides host support for ARM processors.
@@ -55,20 +54,4 @@ config KVM_ARM_MAX_VCPUS
large, so only choose a reasonable number that you expect to
actually use.
-config KVM_ARM_VGIC
- bool "KVM support for Virtual GIC"
- depends on KVM_ARM_HOST && OF
- select HAVE_KVM_IRQCHIP
- default y
- ---help---
- Adds support for a hardware assisted, in-kernel GIC emulation.
-
-config KVM_ARM_TIMER
- bool "KVM support for Architected Timers"
- depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
- select HAVE_KVM_IRQCHIP
- default y
- ---help---
- Adds support for the Architected Timers in virtual machines
-
endif # VIRTUALIZATION