diff options
author | Paul Mackerras <paulus@samba.org> | 2014-06-30 20:51:13 +1000 |
---|---|---|
committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-10-02 17:19:09 +0200 |
commit | f65b953a7232ae8bb497b226363629f9e49b4792 (patch) | |
tree | 296089ee497f255ec3eb934aa0e5023c9aa41289 | |
parent | c905880e253b8e2f77db26dcb647a1a3bb359b11 (diff) |
KVM: Give IRQFD its own separate enabling Kconfig option
Currently, the IRQFD code is conditional on CONFIG_HAVE_KVM_IRQ_ROUTING.
So that we can have the IRQFD code compiled in without having the
IRQ routing code, this creates a new CONFIG_HAVE_KVM_IRQFD, makes
the IRQFD code conditional on it instead of CONFIG_HAVE_KVM_IRQ_ROUTING,
and makes all the platforms that currently select HAVE_KVM_IRQ_ROUTING
also select HAVE_KVM_IRQFD.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit 297e21053a52f060944e9f0de4c64fad9bcd72fc)
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
-rw-r--r-- | arch/ia64/kvm/Kconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/kvm/Kconfig | 1 | ||||
-rw-r--r-- | arch/x86/kvm/Kconfig | 1 | ||||
-rw-r--r-- | include/linux/kvm_host.h | 8 | ||||
-rw-r--r-- | virt/kvm/Kconfig | 3 | ||||
-rw-r--r-- | virt/kvm/eventfd.c | 6 | ||||
-rw-r--r-- | virt/kvm/kvm_main.c | 2 |
7 files changed, 14 insertions, 8 deletions
diff --git a/arch/ia64/kvm/Kconfig b/arch/ia64/kvm/Kconfig index 990b86420cc6..3d50ea955c4c 100644 --- a/arch/ia64/kvm/Kconfig +++ b/arch/ia64/kvm/Kconfig @@ -25,6 +25,7 @@ config KVM select PREEMPT_NOTIFIERS select ANON_INODES select HAVE_KVM_IRQCHIP + select HAVE_KVM_IRQFD select HAVE_KVM_IRQ_ROUTING select KVM_APIC_ARCHITECTURE select KVM_MMIO diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index eb643f862579..60019a6fd6bb 100644 --- a/arch/powerpc/kvm/Kconfig +++ b/arch/powerpc/kvm/Kconfig @@ -155,6 +155,7 @@ config KVM_MPIC bool "KVM in-kernel MPIC emulation" depends on KVM && E500 select HAVE_KVM_IRQCHIP + select HAVE_KVM_IRQFD select HAVE_KVM_IRQ_ROUTING select HAVE_KVM_MSI help diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index b89c5db2b832..bdccfb62aa0d 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -27,6 +27,7 @@ config KVM select MMU_NOTIFIER select ANON_INODES select HAVE_KVM_IRQCHIP + select HAVE_KVM_IRQFD select HAVE_KVM_IRQ_ROUTING select HAVE_KVM_EVENTFD select KVM_APIC_ARCHITECTURE diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 65b6b8d793b5..35319fe693f8 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -413,7 +413,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); int __must_check vcpu_load(struct kvm_vcpu *vcpu); void vcpu_put(struct kvm_vcpu *vcpu); -#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING +#ifdef CONFIG_HAVE_KVM_IRQFD int kvm_irqfd_init(void); void kvm_irqfd_exit(void); #else @@ -888,20 +888,20 @@ int kvm_set_routing_entry(struct kvm_kernel_irq_routing_entry *e, const struct kvm_irq_routing_entry *ue); void kvm_free_irq_routing(struct kvm *kvm); -int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); - #else static inline void kvm_free_irq_routing(struct kvm *kvm) {} #endif +int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); + #ifdef CONFIG_HAVE_KVM_EVENTFD void kvm_eventfd_init(struct kvm *kvm); int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); -#ifdef CONFIG_HAVE_KVM_IRQCHIP +#ifdef CONFIG_HAVE_KVM_IRQFD int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); void kvm_irqfd_release(struct kvm *kvm); void kvm_irq_routing_update(struct kvm *); diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig index 13f2d19793e3..fc0c5e603eb4 100644 --- a/virt/kvm/Kconfig +++ b/virt/kvm/Kconfig @@ -6,6 +6,9 @@ config HAVE_KVM config HAVE_KVM_IRQCHIP bool +config HAVE_KVM_IRQFD + bool + config HAVE_KVM_IRQ_ROUTING bool diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index d2b1653c97dd..8be5b6545770 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -39,7 +39,7 @@ #include "irq.h" #include "iodev.h" -#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING +#ifdef CONFIG_HAVE_KVM_IRQFD /* * -------------------------------------------------------------------- * irqfd: Allows an fd to be used to inject an interrupt to the guest @@ -450,7 +450,7 @@ fail: void kvm_eventfd_init(struct kvm *kvm) { -#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING +#ifdef CONFIG_HAVE_KVM_IRQFD spin_lock_init(&kvm->irqfds.lock); INIT_LIST_HEAD(&kvm->irqfds.items); INIT_LIST_HEAD(&kvm->irqfds.resampler_list); @@ -459,7 +459,7 @@ kvm_eventfd_init(struct kvm *kvm) INIT_LIST_HEAD(&kvm->ioeventfds); } -#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING +#ifdef CONFIG_HAVE_KVM_IRQFD /* * shutdown any irqfd's that match fd+gsi */ diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 1edb15da7acf..848a6afab165 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2330,7 +2330,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg) #ifdef CONFIG_HAVE_KVM_MSI case KVM_CAP_SIGNAL_MSI: #endif -#ifdef CONFIG_HAVE_KVM_IRQ_ROUTING +#ifdef CONFIG_HAVE_KVM_IRQFD case KVM_CAP_IRQFD_RESAMPLE: #endif case KVM_CAP_CHECK_EXTENSION_VM: |