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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-12-04 16:43:23 +0000 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-03-19 13:04:06 +0000 |
| commit | 1bb32a44aea1fe73c6f84e466a45ae559ef74559 (patch) | |
| tree | bde48ef72be891a56a9b61fbf658f6f1627e3064 /arch/arm64 | |
| parent | 807a378425d27d377fdf181d1dba91539bac9294 (diff) | |
| download | linux-1bb32a44aea1fe73c6f84e466a45ae559ef74559.tar.gz linux-1bb32a44aea1fe73c6f84e466a45ae559ef74559.tar.xz | |
KVM: arm/arm64: Keep GICv2 HYP VAs in kvm_vgic_global_state
As we're about to change the way we map devices at HYP, we need
to move away from kern_hyp_va on an IO address.
One way of achieving this is to store the VAs in kvm_vgic_global_state,
and use that directly from the HYP code. This requires a small change
to create_hyp_io_mappings so that it can also return a HYP VA.
We take this opportunity to nuke the vctrl_base field in the emulated
distributor, as it is not used anymore.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/kvm_mmu.h | 3 | ||||
| -rw-r--r-- | arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index 8d5f9934d819..3836641dd6f0 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -141,7 +141,8 @@ static inline unsigned long __kern_hyp_va(unsigned long v) 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 **kaddr, + void __iomem **haddr); void free_hyp_pgds(void); void stage2_unmap_vm(struct kvm *kvm); diff --git a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c index 10eb2e96b3e6..86801b6055d6 100644 --- a/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c +++ b/arch/arm64/kvm/hyp/vgic-v2-cpuif-proxy.c @@ -60,7 +60,7 @@ int __hyp_text __vgic_v2_perform_cpuif_access(struct kvm_vcpu *vcpu) return -1; rd = kvm_vcpu_dabt_get_rd(vcpu); - addr = kern_hyp_va(hyp_symbol_addr(kvm_vgic_global_state)->vcpu_base_va); + addr = hyp_symbol_addr(kvm_vgic_global_state)->vcpu_hyp_va; addr += fault_ipa - vgic->vgic_cpu_base; if (kvm_vcpu_dabt_iswrite(vcpu)) { |