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 76521E936F1 for ; Thu, 5 Oct 2023 01:31:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244462AbjJEBba (ORCPT ); Wed, 4 Oct 2023 21:31:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244396AbjJEBb0 (ORCPT ); Wed, 4 Oct 2023 21:31:26 -0400 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D998BF7 for ; Wed, 4 Oct 2023 18:31:21 -0700 (PDT) Received: by mail-pj1-x1049.google.com with SMTP id 98e67ed59e1d1-27731a63481so372617a91.2 for ; Wed, 04 Oct 2023 18:31:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1696469481; x=1697074281; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=ySZUX6HjFXVIgBeY/TF6xiv1MhwePG0PWurucl5P4Po=; b=xY1Tffy5tmIpZyU0Lp5306ZMbgzEnf7hpF5eyzjP087WH7bRebXO8CtJWDHYzo79Hg uJnWN79nhGg7JSu0UZq+uLyFWkXKpEIONYWGxw5ch4v7N4GC1q2yUETsyp6+HHlSGInv 7aFDBp11du2uDTHCz7PCQvC5zDcA7lza0lQGgLFLdwFTb05ibjAJNW4GYRIoNzE5OvCs kBtht94V9RnlP1W1tBa7hfQUNlC00iUpYlOcsjKE0AjbzESDZBlCt2540XmSFq/Fwkgj ONGNZWuDuKnvcKuESXUJ6co57Bttqv84r0t2AJmmiNn1zq+/MlZ5s9sfoT1dHRCifbes F+fw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696469481; x=1697074281; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ySZUX6HjFXVIgBeY/TF6xiv1MhwePG0PWurucl5P4Po=; b=b626bkD+QuOi7qBJYyZoXXPRcYOL74A02mER7dZGDHGQGZcy/0Rz4McgNJ+SrsRmaS SDfkr5g0PvsX23GD/KFbFlWf6xoM0GgqSnxnKJQKIByV2Pu508+QZivTk+9xn0lRaPKl POjgERtcqwYtVZnbbasLRgc/XNffaYywfVP2w8UikUG8dZvGMNxz4LWaEDWrNpKZjjiO d+pSO0HwZ4uuUDVG0oWQoS2WpozT0lK3yHXhAsYq8ZU5hq+fdwcEcwfL89Oz4xtsKdQe tf51ZnqoNswWYtkRNcQU98nEiqh92ZRwnGfDp6rOz0T8463wlHxrNMD6gpcTgPYHEd8V hVfQ== X-Gm-Message-State: AOJu0Yy8nCwHaNx3y4np37zTIsmByBWrsmYDZ/FpymQWxQZ6qKGZCyez bhfSKFcNpb43Abj5avgDImcYjqg878w= X-Google-Smtp-Source: AGHT+IFUnWTOmDI7bC2bvyy+SlOdFYpaQHnKi0sLYKU22erGcIh9L71d/ygzL+pi58n9BiX/NzbK/4NOTaw= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a17:90a:af90:b0:26b:5182:d042 with SMTP id w16-20020a17090aaf9000b0026b5182d042mr64813pjq.2.1696469481343; Wed, 04 Oct 2023 18:31:21 -0700 (PDT) Date: Wed, 4 Oct 2023 18:29:33 -0700 In-Reply-To: <20230825013621.2845700-1-seanjc@google.com> Mime-Version: 1.0 References: <20230825013621.2845700-1-seanjc@google.com> X-Mailer: git-send-email 2.42.0.582.g8ccd20d70d-goog Message-ID: <169645804510.2820791.2556170665167933788.b4-ty@google.com> Subject: Re: [PATCH v2 0/4] KVM: SVM: Fix unexpected #UD on INT3 in SEV guests From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Wu Zongyo , Tom Lendacky Content-Type: text/plain; charset="utf-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 24 Aug 2023 18:36:17 -0700, Sean Christopherson wrote: > Fix a bug where KVM injects a bogus #UD for SEV guests when trying to skip > an INT3 as part of re-injecting the associated #BP that got kinda sorta > intercepted due to a #NPF occuring while vectoring/delivering the #BP. > > Patch 1 is the main fix. It's a little ugly, but suitable for backporting. > > Patch 2 is a tangentially related cleanup to make NRIPS a requirement for > enabling SEV, e.g. so that we don't ever get "bug" reports of SEV guests > not working when NRIPS is disabled. > > [...] Applied 3-4 to kvm-x86 svm (1-2 went into v6.6). [3/4] KVM: x86: Refactor can_emulate_instruction() return to be more expressive https://github.com/kvm-x86/linux/commit/aeb904f6b9f1 [4/4] KVM: SVM: Treat all "skip" emulation for SEV guests as outright failures https://github.com/kvm-x86/linux/commit/006829954096 -- https://github.com/kvm-x86/linux/tree/next