]> git.baikalelectronics.ru Git - kernel.git/commit
arm/arm64: KVM: Introduce EL2-specific executable mappings
authorMarc Zyngier <marc.zyngier@arm.com>
Tue, 13 Feb 2018 11:00:29 +0000 (11:00 +0000)
committerMarc Zyngier <marc.zyngier@arm.com>
Mon, 19 Mar 2018 13:06:05 +0000 (13:06 +0000)
commit9b23c703dabf83db22c6a4c6924ddc9e13905a43
treee515344be534277129313e93becfb4206f460e96
parent20a2b6157019259febe098859737e65a5d69cf9f
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 <catalin.marinas@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
arch/arm/include/asm/kvm_mmu.h
arch/arm64/include/asm/kvm_mmu.h
virt/kvm/arm/mmu.c