From mboxrd@z Thu Jan 1 00:00:00 1970 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 585FAC433F5 for ; Wed, 17 Nov 2021 06:53:58 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 0534861875 for ; Wed, 17 Nov 2021 06:53:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 0534861875 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id ADB8C4B162; Wed, 17 Nov 2021 01:53:57 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WAfdQB6orLCb; Wed, 17 Nov 2021 01:53:56 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 9698C4B19F; Wed, 17 Nov 2021 01:53:56 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3D8194B176 for ; Wed, 17 Nov 2021 01:53:55 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UzAk0u905cYU for ; Wed, 17 Nov 2021 01:53:54 -0500 (EST) Received: from mail-pl1-f201.google.com (mail-pl1-f201.google.com [209.85.214.201]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id C6DFB4B0D7 for ; Wed, 17 Nov 2021 01:53:52 -0500 (EST) Received: by mail-pl1-f201.google.com with SMTP id v23-20020a170902bf9700b001421d86afc4so569367pls.9 for ; Tue, 16 Nov 2021 22:53:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=cOVvD3SNDbIL6lfyzdxlcaoY7rN6G8I+IyW+oD8ignM=; b=Xlauq9wTt3xE6BYao1bY0HArMFV6nJ6xH/EuP9kpisaxTdt4ScYKFFQdkG9sKoH42R NkptaNYJUssNyX3+a9NogLBRKsc+T4nXMSPu5l6ecIZP9dgrCJ0LRj7ZvOKbho3fYKNy PhVcALbMCYQ5Ueoz0h1Zle1j3NxvJu/jDi42xUt/UJknbA+Lqr2OvLzYcpG7zS4LUpWS nkauUZlcLVqSJnhSegPKecNwi6FsaKPSVXQ2kuwbCvjFz60gmhYejZ728lE6cGAK8Onu SHWWKdpNNpAFDd8jo6+oW+sUESEmaN9xI1ziqCGHwbi6sB/ULtj398r4gUOZBz/AtQOk ALuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=cOVvD3SNDbIL6lfyzdxlcaoY7rN6G8I+IyW+oD8ignM=; b=bv8/uZVt8/MXMR/c+w1u/XIJFkZhyQPcOTTjedDqLb/G+rYAj7tVFzhbelUh6FLfi5 WhVKzvIe9cwI1oCuCVtporPP3wTYGkPlkNUdwe9VL6gBgel2WNF5mxz+zciBStQ2jS9W BtjWtGoPvXNA7zKZYWE3t+3RycXsbX1Hp6731yYt/QPyxrdAgjZeIk63MemPsZ1zCNbp s/YTeWeYFflU/X5DL6lz8RQHo6zO2SKkHJi32liKiMhdKxMOZhOAM2r+lZUdggNVzRBQ t07yYn9EpyiKAzBLhbvZOc9N24o3rygWvjOASbzFenhsMhW3jAtdE0ENdro+mSVCtWc0 iLhg== X-Gm-Message-State: AOAM530cEDxDCpbL+LBa8Ik3JAzsSO9H0FOjdpoEkDnreXLWK8+kBjtS mDGCUmzRIASNc4RARg9lm56zF5+UswU= X-Google-Smtp-Source: ABdhPJxgZUPAeWfxD6o4eFhxbgg1xva8V+KS7wN7lmBeeEQdyhn13ZRClap0+p1FhSsGVbJnsbUOIWe02Cw= X-Received: from reiji-vws-sp.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3d59]) (user=reijiw job=sendgmr) by 2002:a17:90a:390c:: with SMTP id y12mr314910pjb.0.1637132031567; Tue, 16 Nov 2021 22:53:51 -0800 (PST) Date: Tue, 16 Nov 2021 22:43:57 -0800 In-Reply-To: <20211117064359.2362060-1-reijiw@google.com> Message-Id: <20211117064359.2362060-28-reijiw@google.com> Mime-Version: 1.0 References: <20211117064359.2362060-1-reijiw@google.com> X-Mailer: git-send-email 2.34.0.rc1.387.gb447b232ab-goog Subject: [RFC PATCH v3 27/29] KVM: arm64: Initialize trapping of disabled CPU features for the guest From: Reiji Watanabe To: Marc Zyngier , kvmarm@lists.cs.columbia.edu Cc: kvm@vger.kernel.org, Will Deacon , Peter Shier , Paolo Bonzini , linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Call kvm_vcpu_init_traps() at the first KVM_RUN to initialize trapping of disabled CPU features for the guest. Signed-off-by: Reiji Watanabe --- arch/arm64/include/asm/kvm_host.h | 1 + arch/arm64/kvm/arm.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 9dc9970a2d46..a53949cd53c6 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -747,6 +747,7 @@ long kvm_vm_ioctl_mte_copy_tags(struct kvm *kvm, struct kvm_arm_copy_mte_tags *copy_tags); int kvm_id_regs_consistency_check(const struct kvm_vcpu *vcpu); +void kvm_vcpu_init_traps(struct kvm_vcpu *vcpu); /* Guest/host FPSIMD coordination helpers */ int kvm_arch_vcpu_run_map_fp(struct kvm_vcpu *vcpu); diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c index 64b104ebee73..25a41ff92aa5 100644 --- a/arch/arm64/kvm/arm.c +++ b/arch/arm64/kvm/arm.c @@ -625,6 +625,8 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu) */ if (kvm_vm_is_protected(kvm)) kvm_call_hyp_nvhe(__pkvm_vcpu_init_traps, vcpu); + else + kvm_vcpu_init_traps(vcpu); return ret; } -- 2.34.0.rc1.387.gb447b232ab-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm