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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DADAAC433EB for ; Fri, 24 Jul 2020 14:35:19 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 8283020768 for ; Fri, 24 Jul 2020 14:35:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="DHa2vWwb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8283020768 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3C0BF4B4B5; Fri, 24 Jul 2020 10:35:19 -0400 (EDT) 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=@kernel.org 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 skiaNX0f1MTP; Fri, 24 Jul 2020 10:35:16 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 75D294B4AD; Fri, 24 Jul 2020 10:35:16 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id C9FE54B4AC for ; Fri, 24 Jul 2020 10:35:14 -0400 (EDT) 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 3L8g81uIGyrs for ; Fri, 24 Jul 2020 10:35:13 -0400 (EDT) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id DEEBC4B46F for ; Fri, 24 Jul 2020 10:35:13 -0400 (EDT) Received: from localhost.localdomain (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7A5682063A; Fri, 24 Jul 2020 14:35:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595601312; bh=WTr6hbkNz8uIk+9+PXztZX4f3S3xEa6hEDq7MKDUfN8=; h=From:To:Cc:Subject:Date:From; b=DHa2vWwbOcPxsZhyaojzIC+FrMSV/7QI8InQV+deY83HlJ5b2OZXwSFDcUiu13SY+ nbiBad/k/RU+SZ1K9OwOMwa6HJzjdlCT2vphPIv/zsTDSDwuSOzHLq/HFqNr2nwSjy ExSXfqxM6b7iFYzUcN6NoR/vKHkLGG0DAh0+1m+8= From: Will Deacon To: kvmarm@lists.cs.columbia.edu Subject: [PATCH 0/7] KVM: arm64: Fixes to early stage-2 fault handling Date: Fri, 24 Jul 2020 15:34:59 +0100 Message-Id: <20200724143506.17772-1-will@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Cc: kernel-team@android.com, Marc Zyngier , Will Deacon , 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 Hi folks, Continuing my journey into the KVM stage-2 page-table code, here are some fixes for a bunch of issues I spotted purely by code inspection. Most of these involve really unusual scenarios, but I'm a bit worried about the stage-2 fault on stage-1 page-table walk during instruction fetch from a read-only memslot, as that feels like it might be hittable with EFI. Anyway, feedback welcome, especially as this is a user-visible change. Cheers, Will Cc: Marc Zyngier Cc: Quentin Perret Cc: James Morse Cc: Suzuki Poulose --->8 Will Deacon (7): KVM: arm64: Update comment when skipping guest MMIO access instruction KVM: arm64: Rename kvm_vcpu_dabt_isextabt() KVM: arm64: Handle data and instruction external aborts the same way KVM: arm64: Remove useless local variable KVM: arm64: Move 'invalid syndrome' logic out of io_mem_abort() KVM: arm64: Handle stage-2 faults on stage-1 page-table walks earlier KVM: arm64: Separate write faults on read-only memslots from MMIO arch/arm64/include/asm/kvm_emulate.h | 2 +- arch/arm64/kvm/hyp/switch.c | 2 +- arch/arm64/kvm/mmio.c | 29 +++------- arch/arm64/kvm/mmu.c | 87 +++++++++++++++++++--------- 4 files changed, 69 insertions(+), 51 deletions(-) -- 2.28.0.rc0.142.g3c755180ce-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm