From dc2e4633ff39c9fb5ef3a5443721f0e3499b36ed Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 13 Feb 2018 11:00:29 +0000 Subject: arm/arm64: KVM: Introduce EL2-specific executable mappings Until now, all EL2 executable mappings were derived from their EL1 VA. Since we want to decouple the vectors mapping from the rest of the hypervisor, we need to be able to map some text somewhere else. The "idmap" region (for lack of a better name) is ideally suited for this, as we have a huge range that hardly has anything in it. Let's extend the IO allocator to also deal with executable mappings, thus providing the required feature. Acked-by: Catalin Marinas Reviewed-by: Andrew Jones Signed-off-by: Marc Zyngier --- arch/arm/include/asm/kvm_mmu.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/include/asm/kvm_mmu.h') diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index b0b0cde77ca6..707a1f06dc5d 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -56,6 +56,8 @@ int create_hyp_mappings(void *from, void *to, pgprot_t prot); int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size, void __iomem **kaddr, void __iomem **haddr); +int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size, + void **haddr); void free_hyp_pgds(void); void stage2_unmap_vm(struct kvm *kvm); -- cgit v1.2.1