From patchwork Wed Nov 2 23:18:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 13029164 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CF33C433FE for ; Wed, 2 Nov 2022 23:20:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230460AbiKBXUO (ORCPT ); Wed, 2 Nov 2022 19:20:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230372AbiKBXT4 (ORCPT ); Wed, 2 Nov 2022 19:19:56 -0400 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C77FA2611 for ; Wed, 2 Nov 2022 16:19:25 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id v18-20020a637a12000000b0046ed84b94efso94344pgc.6 for ; Wed, 02 Nov 2022 16:19:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=Pp3PbLfGlbPMUpUfY94YYIKSvd3QEyEjimXY5GHh7Do=; b=UkZGnXGmq2elzgV9DLUz74QXF30iTWbFGDiWfdaXhQTrFX8aiqCFVBpq5xcu6/5CJ0 6CAeS4zBndyLbi6uL4aOTOJPom/GUXPjp+wnaiLNi/IOKHaUUiAdDM0lQqJcKi8lJ3vx vnARJXxit3idHJ3CVkd3Epv6mh/Uh5po1QC+vmSMzcdxDA+trq8VPV/HTVpleuhXsuBJ gB5evBsfkJOotXoUamKJrE8Yp7t9k0CZooSYyZMUGEw+wssTud1LYZ35nFOFQX6SsKf7 8kThfTBVhIqoMM2+KcJViQg4ABdkLDTwvbAbS0YvwKJ8JO2nHVa2hjZQKtmcKqW09CRW 6M/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Pp3PbLfGlbPMUpUfY94YYIKSvd3QEyEjimXY5GHh7Do=; b=2q+bt/MR9ElqKuVeYjJneRgr+bUO+Dt1AcR3mJgJjQNL4pRodl0q1fFY7P0OL6hE+O iFOnAZiuzbYgkW7stTXeuz0lOe1XpJC2ov5iEUgXv6eLpMrXpgMRPEVptOwqNYTNC/lI BL0oUHDBfEfe5lM4xXLDnNdDAIsj+oKM60qTkpByQIaSVmG9p1cmMoB3gWog2z4JOmBY 0IPRqsJIFVeI3t5jMXGqMqRZTUk3YqtB2L+fsYMyyXFaqpS8RSx4boQnBInOyWnCp9gS fDczXe6dbujX8o735c05ABDKrDcN5LMB/IxEqj0fb3/uc1lUC0X97+tH8cpEGCE2+/DM wcVA== X-Gm-Message-State: ACrzQf1D2U2tXOSvv9x58pRS2vN1WnFELO4F+w6Vf5l9mols7j/C5NL6 hgjFlC0VOX6o39Rs34Ce5Pr4nS72UTM= X-Google-Smtp-Source: AMsMyM5BN48AgcZOI4nVxc2uFg8TXUQwjAkA5TEHVSI5KiQDtZoUe78o5/c87/pf9J/oxQANcuw7e+pFPCs= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a63:1206:0:b0:470:18c:1489 with SMTP id h6-20020a631206000000b00470018c1489mr6904894pgl.357.1667431164538; Wed, 02 Nov 2022 16:19:24 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 2 Nov 2022 23:18:33 +0000 In-Reply-To: <20221102231911.3107438-1-seanjc@google.com> Mime-Version: 1.0 References: <20221102231911.3107438-1-seanjc@google.com> X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog Message-ID: <20221102231911.3107438-7-seanjc@google.com> Subject: [PATCH 06/44] KVM: s390: Move hardware setup/unsetup to init/exit From: Sean Christopherson To: Paolo Bonzini , Marc Zyngier , Huacai Chen , Aleksandar Markovic , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Matthew Rosato , Eric Farman , Sean Christopherson , Vitaly Kuznetsov Cc: James Morse , Alexandru Elisei , Suzuki K Poulose , Oliver Upton , Atish Patra , David Hildenbrand , kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, Isaku Yamahata , Fabiano Rosas , Michael Ellerman , Chao Gao , Thomas Gleixner , Yuan Yao Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Now that kvm_arch_hardware_setup() is called immediately after kvm_arch_init(), fold the guts of kvm_arch_hardware_(un)setup() into kvm_arch_{init,exit}() as a step towards dropping one of the hooks. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Eric Farman --- arch/s390/kvm/kvm-s390.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 8395433a79b2..1aaee15211f2 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -323,21 +323,12 @@ static struct notifier_block kvm_clock_notifier = { int kvm_arch_hardware_setup(void *opaque) { - gmap_notifier.notifier_call = kvm_gmap_notifier; - gmap_register_pte_notifier(&gmap_notifier); - vsie_gmap_notifier.notifier_call = kvm_s390_vsie_gmap_notifier; - gmap_register_pte_notifier(&vsie_gmap_notifier); - atomic_notifier_chain_register(&s390_epoch_delta_notifier, - &kvm_clock_notifier); return 0; } void kvm_arch_hardware_unsetup(void) { - gmap_unregister_pte_notifier(&gmap_notifier); - gmap_unregister_pte_notifier(&vsie_gmap_notifier); - atomic_notifier_chain_unregister(&s390_epoch_delta_notifier, - &kvm_clock_notifier); + } static void allow_cpu_feat(unsigned long nr) @@ -517,6 +508,13 @@ int kvm_arch_init(void *opaque) if (rc) goto err_gib; + gmap_notifier.notifier_call = kvm_gmap_notifier; + gmap_register_pte_notifier(&gmap_notifier); + vsie_gmap_notifier.notifier_call = kvm_s390_vsie_gmap_notifier; + gmap_register_pte_notifier(&vsie_gmap_notifier); + atomic_notifier_chain_register(&s390_epoch_delta_notifier, + &kvm_clock_notifier); + return 0; err_gib: @@ -533,6 +531,11 @@ int kvm_arch_init(void *opaque) void kvm_arch_exit(void) { + gmap_unregister_pte_notifier(&gmap_notifier); + gmap_unregister_pte_notifier(&vsie_gmap_notifier); + atomic_notifier_chain_unregister(&s390_epoch_delta_notifier, + &kvm_clock_notifier); + kvm_s390_gib_destroy(); if (IS_ENABLED(CONFIG_VFIO_PCI_ZDEV_KVM)) kvm_s390_pci_exit();