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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABE5DC4332F for ; Wed, 8 Nov 2023 01:09:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234593AbjKHBJ7 (ORCPT ); Tue, 7 Nov 2023 20:09:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229988AbjKHBJ6 (ORCPT ); Tue, 7 Nov 2023 20:09:58 -0500 Received: from mail-pl1-x64a.google.com (mail-pl1-x64a.google.com [IPv6:2607:f8b0:4864:20::64a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3291B10CF for ; Tue, 7 Nov 2023 17:09:56 -0800 (PST) Received: by mail-pl1-x64a.google.com with SMTP id d9443c01a7336-1cc5ef7e815so44563365ad.3 for ; Tue, 07 Nov 2023 17:09:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1699405795; x=1700010595; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:reply-to:from:to:cc :subject:date:message-id:reply-to; bh=Oxu+k+SZ8kCvp94YTrpUeaCD1V6h4t1KJZzJ+BMwr/k=; b=HDMZZEDcRuqVut7+vucoEUa0WZjVN0VILC1+u8ThWBrwsfJCmxeqIRcOU+EfHvi6gv HYKv0CoXx7ixNs2oGgXiVnGd7mhqpSDNHIFmAXBm36CkE1GHsgtr0Gs77FPwNO5Ga6gn kIXpw4W7aeyqf9LaOKdoMwUGWuckP0LnuZm1NOe20FTC72j7Jl3Sv5fNWOc7MQTl7h+O MkkFhKfO7QgdVYhnExeJaPa0gF2Vpk1KJ6dwhjh/JDnGfb8x45ITlWDvE9tDo6SjBjUo HNnSWqeTBUeQyscB82moURsmzAQYyKsTcqdFmdib5Zay9XCWCJ0d4MzkTAptQLtUJE0j P6oQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699405795; x=1700010595; h=cc:to:from:subject:message-id:mime-version:date:reply-to :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Oxu+k+SZ8kCvp94YTrpUeaCD1V6h4t1KJZzJ+BMwr/k=; b=kSzKK7Qd6kYZhWVXo9qzK2gyhtGsNrWQVpXgnNnLqLABVR6SFFdlp35A3doIwhb5v7 H1zKvpLV5gYUbEXBb0wZr+El9ILuoNennYeJK2tQKAYwDxoVZVhIXCglCXtbwIETzCBt oS1v5DQv9j9y02dAMgQzRbP24o6dRSJPFt37UoXrcVokiqw1OTn/dccj/Qd8YwUFtBi/ haux30neTzoi8Zaf2FPA1JPsAHU8zs0wRWnwDvH6Bz9nPRiNDo190yb7csjfyULDNU4Y o8oC7bCHNS85kMvb8+DYEH+ZKF/XjHokDBF1I/B6hsTn8+or0+/PuufAzqN+bkI+F9aZ F47Q== X-Gm-Message-State: AOJu0Ywd0qLracIUNuexqWxrXps0xIBE5AV/LDvutV9DCPR3byYTZyZH 4EagDL1M5ammOD2rZbq9+q5i5Hocvss= X-Google-Smtp-Source: AGHT+IEX0TGbWBREr3RBzARDa6iU5dAUeynzl0NsrgqA8zi+AVKyQK6cZItSwsuP762i4QBcNpgy7AOO7BI= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:902:f80e:b0:1cc:2a6f:ab91 with SMTP id ix14-20020a170902f80e00b001cc2a6fab91mr11432plb.0.1699405795722; Tue, 07 Nov 2023 17:09:55 -0800 (PST) Reply-To: Sean Christopherson Date: Tue, 7 Nov 2023 17:09:51 -0800 Mime-Version: 1.0 X-Mailer: git-send-email 2.42.0.869.gea05f2083d-goog Message-ID: <20231108010953.560824-1-seanjc@google.com> Subject: [PATCH v2 0/2] KVM: selftests: Detect if KVM bugged the VM From: Sean Christopherson To: Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Christopherson , Michal Luczaj , Oliver Upton , Colton Lewis Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Teach selftests' ioctl() macros to detect and report when an ioctl() unexpectedly fails because KVM has killed and/or bugged the VM. Because selftests does the right thing and tries to gracefully clean up VMs, a bugged VM can generate confusing errors, e.g. when deleting memslots. v2: - Drop the ARM patch (not worth the churn). - Drop macros for ioctls() that return file descriptors. Looking at this with fresh eyes, I agree they do more harm than good. [Oliver] v1: https://lore.kernel.org/all/20230804004226.1984505-1-seanjc@google.com Sean Christopherson (2): KVM: selftests: Drop the single-underscore ioctl() helpers KVM: selftests: Add logic to detect if ioctl() failed because VM was killed .../selftests/kvm/include/kvm_util_base.h | 75 ++++++++++++------- tools/testing/selftests/kvm/lib/kvm_util.c | 2 +- 2 files changed, 51 insertions(+), 26 deletions(-) base-commit: 45b890f7689eb0aba454fc5831d2d79763781677 -- 2.42.0.869.gea05f2083d-goog