diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index 29935c7da1de..cab27f7bd423 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -52,6 +52,7 @@ int __pkvm_host_test_clear_young_guest(u64 gfn, u64 nr_pages, bool mkold, struct int __pkvm_host_mkyoung_guest(u64 gfn, struct pkvm_hyp_vcpu *vcpu); bool addr_is_memory(phys_addr_t phys); +bool addr_is_hyp_text(phys_addr_t phys); int host_stage2_idmap_locked(phys_addr_t addr, u64 size, enum kvm_pgtable_prot prot); int host_stage2_set_owner_locked(phys_addr_t addr, u64 size, u8 owner_id); int kvm_host_prepare_stage2(void *pgt_pool_base); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 39aa8911f62c..d026f446bd8e 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -450,6 +450,14 @@ bool addr_is_memory(phys_addr_t phys) return !!find_mem_range(phys, &range); } +bool addr_is_hyp_text(phys_addr_t phys) +{ + phys_addr_t start = ALIGN_DOWN(__hyp_pa(__hyp_text_start), PAGE_SIZE); + phys_addr_t end = PAGE_ALIGN(__hyp_pa(__hyp_text_end)); + + return phys >= start && phys < end; +} + static bool is_in_mem_range(u64 addr, struct kvm_mem_range *range) { return range->start <= addr && addr < range->end; diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c index 362f2891cb32..bb667cd7080b 100644 --- a/arch/arm64/kvm/hyp/nvhe/setup.c +++ b/arch/arm64/kvm/hyp/nvhe/setup.c @@ -217,7 +217,7 @@ static int fix_host_ownership_walker(const struct kvm_pgtable_visit_ctx *ctx, case PKVM_PAGE_OWNED: set_hyp_state(page, PKVM_PAGE_OWNED); /* hyp text is RO in the host stage-2 to be inspected on panic. */ - if (prot == PAGE_HYP_EXEC) { + if (addr_is_hyp_text(phys)) { set_host_state(page, PKVM_NOPAGE); return host_stage2_idmap_locked(phys, PAGE_SIZE, KVM_PGTABLE_PROT_R); } else {