Messages in this thread Patch in this message | | | From | aik@ozlabs ... | Subject | [PATCH 2/5] KVM: PPC: iommu: Add missing kvm_iommu_map_pages/kvm_iommu_unmap_pages | Date | Mon, 6 May 2013 17:21:58 +1000 |
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From: Alexey Kardashevskiy <aik@ozlabs.ru>
The IOMMU API implements groups creating/deletion, device binding and IOMMU map/unmap operations.
The PowerPC implementation uses most of the API except map/unmap operations, which are implemented on POWER using hypercalls.
However, in order to link a kernel with the CONFIG_IOMMU_API enabled, the empty kvm_iommu_map_pages/kvm_iommu_unmap_pages have to be defined, so this defines them.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/include/asm/kvm_host.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index b6a047e..c025d91 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -603,4 +603,18 @@ struct kvm_vcpu_arch { #define __KVM_HAVE_ARCH_WQP +#ifdef CONFIG_IOMMU_API +/* POWERPC does not use IOMMU API for mapping/unmapping */ +static inline int kvm_iommu_map_pages(struct kvm *kvm, + struct kvm_memory_slot *slot) +{ + return 0; +} + +static inline void kvm_iommu_unmap_pages(struct kvm *kvm, + struct kvm_memory_slot *slot) +{ +} +#endif /* CONFIG_IOMMU_API */ + #endif /* __POWERPC_KVM_HOST_H__ */ -- 1.7.10.4
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