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Date: Mon, 6 May 2013 17:21:58 +1000 From: aik@...abs.ru To: linuxppc-dev@...ts.ozlabs.org Cc: Alexey Kardashevskiy <aik@...abs.ru>, David Gibson <david@...son.dropbear.id.au>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Alex Williamson <alex.williamson@...hat.com>, Paul Mackerras <paulus@...ba.org>, Alexander Graf <agraf@...e.de>, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, kvm-ppc@...r.kernel.org, linux-pci@...r.kernel.org Subject: [PATCH 2/5] KVM: PPC: iommu: Add missing kvm_iommu_map_pages/kvm_iommu_unmap_pages From: Alexey Kardashevskiy <aik@...abs.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@...abs.ru> Cc: David Gibson <david@...son.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@...ba.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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