From patchwork Mon Mar 5 07:54:55 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Mackerras X-Patchwork-Id: 881335 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=ozlabs.org header.i=@ozlabs.org header.b="k6okZnef"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zvsdj3tdkz9sZd for ; Mon, 5 Mar 2018 18:55:21 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933337AbeCEHzT (ORCPT ); Mon, 5 Mar 2018 02:55:19 -0500 Received: from ozlabs.org ([103.22.144.67]:37399 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933131AbeCEHzK (ORCPT ); Mon, 5 Mar 2018 02:55:10 -0500 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 3zvsdS1z55z9sXc; Mon, 5 Mar 2018 18:55:08 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ozlabs.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1520236508; bh=U0Lzz9TqmT03f2aEQ9GsUoo3M9c5BW6xF4n/V4Qr/w8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k6okZnefJe1Gk157cIjwqzZ1iJMHMNJ9Dd6d8c2p6LdZjg5w35DNts/NGDoPJLdd5 ABInU/1eTc+N7gajWX6QfnewjrVFPb9BPSVNP5z+83i5jQXEC2/ghR2atyZQdIayfB WD+7lfGBOzl7nRM8WUQFhRps1Z9raLfLlntl1CjJbIoEfAK8svL3DjWdQUydLwlvsi 0A3C2bkhAiwnsrenNFCNo/TQZpQisEjyIMVmWE0Dr4Q+ePHvdOtBANxVcEvF8jFQ9l EImb0A/2oWHGBoWr0O3LI0ST21WcR7vEHMFDe4SOE6cA2A0yk7hmU33qNvf/W0iKDp wnecFZnG4EOVQ== From: Paul Mackerras To: kvm@vger.kernel.org Cc: kvm-ppc@vger.kernel.org Subject: [PATCH 1/5] KVM: PPC: Remove unused kvm_unmap_hva callback Date: Mon, 5 Mar 2018 18:54:55 +1100 Message-Id: <1520236499-29499-2-git-send-email-paulus@ozlabs.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1520236499-29499-1-git-send-email-paulus@ozlabs.org> References: <1520236499-29499-1-git-send-email-paulus@ozlabs.org> Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org Since commit fb1522e099f0 ("KVM: update to new mmu_notifier semantic v2", 2017-08-31), the MMU notifier code in KVM no longer calls the kvm_unmap_hva callback. This removes the PPC implementations of kvm_unmap_hva(). Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/kvm_host.h | 1 - arch/powerpc/include/asm/kvm_ppc.h | 1 - arch/powerpc/kvm/book3s.c | 6 ------ arch/powerpc/kvm/book3s.h | 1 - arch/powerpc/kvm/book3s_64_mmu_hv.c | 9 --------- arch/powerpc/kvm/book3s_64_vio_hv.c | 2 +- arch/powerpc/kvm/book3s_hv.c | 1 - arch/powerpc/kvm/book3s_pr.c | 10 ---------- arch/powerpc/kvm/e500_mmu_host.c | 2 +- arch/powerpc/kvm/trace_pr.h | 15 --------------- 10 files changed, 2 insertions(+), 46 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 1f53b56..6b69d79 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -60,7 +60,6 @@ #define KVM_ARCH_WANT_MMU_NOTIFIER -extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); extern int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end); diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index 7765a80..23cfaef 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -295,7 +295,6 @@ struct kvmppc_ops { const struct kvm_userspace_memory_region *mem, const struct kvm_memory_slot *old, const struct kvm_memory_slot *new); - int (*unmap_hva)(struct kvm *kvm, unsigned long hva); int (*unmap_hva_range)(struct kvm *kvm, unsigned long start, unsigned long end); int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end); diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 234531d..97d4a11 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -819,12 +819,6 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm, kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new); } -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) -{ - return kvm->arch.kvm_ops->unmap_hva(kvm, hva); -} -EXPORT_SYMBOL_GPL(kvm_unmap_hva); - int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end) { return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end); diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h index d2b3ec0..4ad5e28 100644 --- a/arch/powerpc/kvm/book3s.h +++ b/arch/powerpc/kvm/book3s.h @@ -14,7 +14,6 @@ extern void kvmppc_core_flush_memslot_hv(struct kvm *kvm, struct kvm_memory_slot *memslot); -extern int kvm_unmap_hva_hv(struct kvm *kvm, unsigned long hva); extern int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start, unsigned long end); extern int kvm_age_hva_hv(struct kvm *kvm, unsigned long start, diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index ef243fe..a670fa5 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -877,15 +877,6 @@ static int kvm_unmap_rmapp(struct kvm *kvm, struct kvm_memory_slot *memslot, return 0; } -int kvm_unmap_hva_hv(struct kvm *kvm, unsigned long hva) -{ - hva_handler_fn handler; - - handler = kvm_is_radix(kvm) ? kvm_unmap_radix : kvm_unmap_rmapp; - kvm_handle_hva(kvm, hva, handler); - return 0; -} - int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start, unsigned long end) { hva_handler_fn handler; diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c index c32e9bfe..6651f73 100644 --- a/arch/powerpc/kvm/book3s_64_vio_hv.c +++ b/arch/powerpc/kvm/book3s_64_vio_hv.c @@ -450,7 +450,7 @@ long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu, /* * Synchronize with the MMU notifier callbacks in - * book3s_64_mmu_hv.c (kvm_unmap_hva_hv etc.). + * book3s_64_mmu_hv.c (kvm_unmap_hva_range_hv etc.). * While we have the rmap lock, code running on other CPUs * cannot finish unmapping the host real page that backs * this guest real page, so we are OK to access the host diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 9cb9448..4863ab8 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4351,7 +4351,6 @@ static struct kvmppc_ops kvm_ops_hv = { .flush_memslot = kvmppc_core_flush_memslot_hv, .prepare_memory_region = kvmppc_core_prepare_memory_region_hv, .commit_memory_region = kvmppc_core_commit_memory_region_hv, - .unmap_hva = kvm_unmap_hva_hv, .unmap_hva_range = kvm_unmap_hva_range_hv, .age_hva = kvm_age_hva_hv, .test_age_hva = kvm_test_age_hva_hv, diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 3ae7523..d3f304d 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -277,15 +277,6 @@ static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start, } } -static int kvm_unmap_hva_pr(struct kvm *kvm, unsigned long hva) -{ - trace_kvm_unmap_hva(hva); - - do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE); - - return 0; -} - static int kvm_unmap_hva_range_pr(struct kvm *kvm, unsigned long start, unsigned long end) { @@ -1773,7 +1764,6 @@ static struct kvmppc_ops kvm_ops_pr = { .flush_memslot = kvmppc_core_flush_memslot_pr, .prepare_memory_region = kvmppc_core_prepare_memory_region_pr, .commit_memory_region = kvmppc_core_commit_memory_region_pr, - .unmap_hva = kvm_unmap_hva_pr, .unmap_hva_range = kvm_unmap_hva_range_pr, .age_hva = kvm_age_hva_pr, .test_age_hva = kvm_test_age_hva_pr, diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c index 423b213..c878b4f 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -724,7 +724,7 @@ int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, enum instruction_type type, /************* MMU Notifiers *************/ -int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) +static int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) { trace_kvm_unmap_hva(hva); diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h index 85785a3..2f9a882 100644 --- a/arch/powerpc/kvm/trace_pr.h +++ b/arch/powerpc/kvm/trace_pr.h @@ -254,21 +254,6 @@ TRACE_EVENT(kvm_exit, ) ); -TRACE_EVENT(kvm_unmap_hva, - TP_PROTO(unsigned long hva), - TP_ARGS(hva), - - TP_STRUCT__entry( - __field( unsigned long, hva ) - ), - - TP_fast_assign( - __entry->hva = hva; - ), - - TP_printk("unmap hva 0x%lx\n", __entry->hva) -); - #endif /* _TRACE_KVM_H */ /* This part must be outside protection */