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authorAlexander Graf <agraf@suse.de>2013-04-17 00:37:57 +0200
committerAlexander Graf <agraf@suse.de>2013-04-26 20:27:25 +0200
commit5efdb4be598fc2af6937c3387586635ddf6fd2c8 (patch)
treed29783ce903314e669463e7365a4cebb16db9bc5
parentde9ba2f36368d21314860ee24893a6ffef01e548 (diff)
downloadop-kernel-dev-5efdb4be598fc2af6937c3387586635ddf6fd2c8.zip
op-kernel-dev-5efdb4be598fc2af6937c3387586635ddf6fd2c8.tar.gz
KVM: PPC: MPIC: Add support for KVM_IRQ_LINE
Now that all pieces are in place for reusing generic irq infrastructure, we can copy x86's implementation of KVM_IRQ_LINE irq injection and simply reuse it for PPC, as it will work there just as well. Signed-off-by: Alexander Graf <agraf@suse.de>
-rw-r--r--arch/powerpc/include/uapi/asm/kvm.h1
-rw-r--r--arch/powerpc/kvm/powerpc.c13
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index ca87106..03c7819 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -26,6 +26,7 @@
#define __KVM_HAVE_SPAPR_TCE
#define __KVM_HAVE_PPC_SMT
#define __KVM_HAVE_IRQCHIP
+#define __KVM_HAVE_IRQ_LINE
struct kvm_regs {
__u64 pc;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 5d046bb..d8e81e6 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -33,6 +33,7 @@
#include <asm/cputhreads.h>
#include <asm/irqflags.h>
#include "timing.h"
+#include "irq.h"
#include "../mm/mmu_decl.h"
#define CREATE_TRACE_POINTS
@@ -939,6 +940,18 @@ static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
return 0;
}
+int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event,
+ bool line_status)
+{
+ if (!irqchip_in_kernel(kvm))
+ return -ENXIO;
+
+ irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID,
+ irq_event->irq, irq_event->level,
+ line_status);
+ return 0;
+}
+
long kvm_arch_vm_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
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