We will need to manipulate the host stage-2 page-table from outside mem_protect.c soon. Introduce a function wrapping the host_stage2_try() call and make it usable to users of mem_protect.h.
Signed-off-by: Quentin Perret <[email protected]> --- arch/arm64/kvm/hyp/include/nvhe/mem_protect.h | 1 + arch/arm64/kvm/hyp/nvhe/mem_protect.c | 7 ++++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h index facbd9a7ab99..8e5725d032b2 100644 --- a/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h +++ b/arch/arm64/kvm/hyp/include/nvhe/mem_protect.h @@ -50,6 +50,7 @@ extern struct host_kvm host_kvm; int __pkvm_prot_finalize(void); int __pkvm_mark_hyp(phys_addr_t start, phys_addr_t end); +int host_stage2_idmap_locked(u64 start, u64 end, enum kvm_pgtable_prot prot); int kvm_host_prepare_stage2(void *pgt_pool_base); void handle_host_mem_abort(struct kvm_cpu_context *host_ctxt); diff --git a/arch/arm64/kvm/hyp/nvhe/mem_protect.c b/arch/arm64/kvm/hyp/nvhe/mem_protect.c index 2d41d4fa8901..223c541a7051 100644 --- a/arch/arm64/kvm/hyp/nvhe/mem_protect.c +++ b/arch/arm64/kvm/hyp/nvhe/mem_protect.c @@ -266,6 +266,11 @@ static int host_stage2_find_range(u64 addr, struct kvm_mem_range *range) return 0; } +int host_stage2_idmap_locked(u64 start, u64 end, enum kvm_pgtable_prot prot) +{ + return host_stage2_try(__host_stage2_idmap, start, end, prot); +} + static bool host_stage2_force_pte_cb(u64 addr, u64 end, enum kvm_pgtable_prot prot) { /* @@ -303,7 +308,7 @@ static int host_stage2_idmap(u64 addr) if (ret) goto unlock; - ret = host_stage2_try(__host_stage2_idmap, range.start, range.end, prot); + ret = host_stage2_idmap_locked(range.start, range.end, prot); unlock: hyp_spin_unlock(&host_kvm.lock); -- 2.32.0.432.gabb21c7263-goog _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
