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| author | Arnd Bergmann <arnd@arndb.de> | 2013-04-23 18:30:36 +0200 |
|---|---|---|
| committer | Christoffer Dall <cdall@cs.columbia.edu> | 2013-04-28 22:23:14 -0700 |
| commit | d21a1c83c7595e387545632e44cd7797b76e19cc (patch) | |
| tree | 496440a73102add2bd05ff8af9790f99dd5d2f6f /arch/arm/kvm/Kconfig | |
| parent | aa404ddf952fa59c07575529ce93435538a3aebe (diff) | |
| download | lwn-d21a1c83c7595e387545632e44cd7797b76e19cc.tar.gz lwn-d21a1c83c7595e387545632e44cd7797b76e19cc.zip | |
ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally
The CONFIG_KVM_ARM_MAX_VCPUS symbol is needed in order to build the
kernel/context_tracking.c code, which includes the vgic data structures
implictly through the kvm headers. Definining the symbol to zero
on builds without KVM resolves this build error:
In file included from include/linux/kvm_host.h:33:0,
from kernel/context_tracking.c:18:
arch/arm/include/asm/kvm_host.h:28:23: warning: "CONFIG_KVM_ARM_MAX_VCPUS" is not defined [-Wundef]
#define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
^
arch/arm/include/asm/kvm_vgic.h:34:24: note: in expansion of macro 'KVM_MAX_VCPUS'
#define VGIC_MAX_CPUS KVM_MAX_VCPUS
^
arch/arm/include/asm/kvm_vgic.h:38:6: note: in expansion of macro 'VGIC_MAX_CPUS'
#if (VGIC_MAX_CPUS > 8)
^
In file included from arch/arm/include/asm/kvm_host.h:41:0,
from include/linux/kvm_host.h:33,
from kernel/context_tracking.c:18:
arch/arm/include/asm/kvm_vgic.h:59:11: error: 'CONFIG_KVM_ARM_MAX_VCPUS' undeclared here (not in a function)
} percpu[VGIC_MAX_CPUS];
^
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Christoffer Dall <cdall@cs.columbia.edu>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
Diffstat (limited to 'arch/arm/kvm/Kconfig')
| -rw-r--r-- | arch/arm/kvm/Kconfig | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index 49dd64e579c2..370e1a8af6ac 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -41,9 +41,9 @@ config KVM_ARM_HOST Provides host support for ARM processors. config KVM_ARM_MAX_VCPUS - int "Number maximum supported virtual CPUs per VM" - depends on KVM_ARM_HOST - default 4 + int "Number maximum supported virtual CPUs per VM" if KVM_ARM_HOST + default 4 if KVM_ARM_HOST + default 0 help Static number of max supported virtual CPUs per VM. |