From nobody Mon Feb 9 04:14:15 2026 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 F339BC47088 for ; Wed, 30 Nov 2022 23:13:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230031AbiK3XNf (ORCPT ); Wed, 30 Nov 2022 18:13:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229956AbiK3XMw (ORCPT ); Wed, 30 Nov 2022 18:12:52 -0500 Received: from mail-pl1-x649.google.com (mail-pl1-x649.google.com [IPv6:2607:f8b0:4864:20::649]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBDD89C61D for ; Wed, 30 Nov 2022 15:10:38 -0800 (PST) Received: by mail-pl1-x649.google.com with SMTP id b6-20020a170902d50600b00189a5536820so5305475plg.16 for ; Wed, 30 Nov 2022 15:10:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=content-transfer-encoding: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=2E/ZNfNVjTWUDx7EclAA9RDMNJ28SDYbq0FBSTNkEW0=; b=YOeUjr5k1nRXALq3v0KKdNU/RoNOZHvdJ287PzEh8mewFol14vSXSy8/3fYRK98ogf DM6/FhXti4G1BKHQNvzjRV1tWyFhTyxYu+zxNSNi9IlHcolXKLZsPssVX0dsnM50iavV x2ODcftM6fP7S5M9f/kxN+kBZaYtyIW+z4R08Rc0Nfjpphi6e+XsI1tHwJnKWXkQaHpN Fvd9/AR9wQma2szpaVgVzc80G2d6HwNcimfP60MChrBcVuLXdfKe+wSSxLqRYu4pvEyL hD29cSFZ9nNlD/40iFEC/0Ct0+nb0Drk9Ewou2J1g8F1lSQpSFp12LOPbSOpy+zVepWe HB6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding: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=2E/ZNfNVjTWUDx7EclAA9RDMNJ28SDYbq0FBSTNkEW0=; b=Nz2tbWEiXE3GIdoEiYN7IBZvhivKsiH/YCmD4ofsGA6MeFcomxXoCxSxFoCGXclERD IXzhXQLu2FW4OEA3ynXhuIWLxrTEp8eO6j0iYuzNBgMn89il3rD8rJ00joZh/42wpRvf TAwY0y6Lv/pq2CZh2JROujzXoWptS6aXYHBaHTFiSoALRintvK7WOWAyD+i+5D45FfAx yVms8CoCU/boTOgCmkCtEdZMLaay8NVOt/sZ9iicxS0QfpnmPUkP1x8Et2vuR/2Wm6m7 EDtuji4zsxur4ZLCQtfaRDBqIQqTfL2Y2s9QkehQV/AotfXCbSsT0o3Lz7We7Fmk5o6M JO6Q== X-Gm-Message-State: ANoB5pnJ4C8/ao+dVMqMKDWeCIvyn3Gf3nbhDB6skiqo+M/FDSujOvPR LqMjvEMg0GkX1vyVyB56iUz5wEQUEPc= X-Google-Smtp-Source: AA0mqf6fouTIX68sTKIWP0zUhpW+UmWGK5D4PKuHk4dF0PG0spJwJY42lnPZuN8WAPveTbTZZSc8FEJYBlE= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a62:6045:0:b0:575:f66b:75a9 with SMTP id u66-20020a626045000000b00575f66b75a9mr3406091pfb.2.1669849816681; Wed, 30 Nov 2022 15:10:16 -0800 (PST) Reply-To: Sean Christopherson Date: Wed, 30 Nov 2022 23:09:07 +0000 In-Reply-To: <20221130230934.1014142-1-seanjc@google.com> Mime-Version: 1.0 References: <20221130230934.1014142-1-seanjc@google.com> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog Message-ID: <20221130230934.1014142-24-seanjc@google.com> Subject: [PATCH v2 23/50] KVM: MIPS: Register die notifier prior to kvm_init() 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 , David Woodhouse , Paul Durrant 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, Yuan Yao , Cornelia Huck , Isaku Yamahata , "=?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?=" , Fabiano Rosas , Michael Ellerman , Kai Huang , Chao Gao , Thomas Gleixner Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Call kvm_init() only after _all_ setup is complete, as kvm_init() exposes /dev/kvm to userspace and thus allows userspace to create VMs (and call other ioctls). Signed-off-by: Sean Christopherson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- arch/mips/kvm/mips.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 75681281e2df..ae7a24342fdf 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1640,16 +1640,17 @@ static int __init kvm_mips_init(void) if (ret) return ret; =20 - ret =3D kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); - - if (ret) - return ret; =20 if (boot_cpu_type() =3D=3D CPU_LOONGSON64) kvm_priority_to_irq =3D kvm_loongson3_priority_to_irq; =20 register_die_notifier(&kvm_mips_csr_die_notifier); =20 + ret =3D kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); + if (ret) { + unregister_die_notifier(&kvm_mips_csr_die_notifier); + return ret; + } return 0; } =20 --=20 2.38.1.584.g0f3c55d4c2-goog