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 6219CC83F10 for ; Thu, 31 Aug 2023 17:27:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241500AbjHaR1p (ORCPT ); Thu, 31 Aug 2023 13:27:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232584AbjHaR1o (ORCPT ); Thu, 31 Aug 2023 13:27:44 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D57F21B2 for ; Thu, 31 Aug 2023 10:27:39 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id 3f1490d57ef6-d74711fd72eso871678276.3 for ; Thu, 31 Aug 2023 10:27:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1693502859; x=1694107659; 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=IGpYSMSGMaMzVYXbXpIcBRTqVDSQW/Rx6E1NVn3C2WI=; b=D2LvzS5dZiZ9/CK/5zTOt29VtHM3TidntcLTu9rBgty3Ip1WQOB2Pncaeh81DelHiu qv2zsU8zwc2TR1kfkrsKa3I9GUmmIbTAVHx1b1cII05lZjRlQxk9LYXVNhJxIhWGEkch lzaYSy8N7uoNqEL6DBOZgSDI765n3B7AYzD/5+UGJKOFBQ592DsX9Zwuyo/NIOvobr60 qKXj9AsgoLf+sTuc/qOhb+BK9aCcggX3KUc7GWAoo33R3hcjtX2LzOcPWRfK9yxpTrVq BRfadbG7DVT+JCzInnxekjgMtJYZq2MIuXG/Mx8Lr9WSo+AsOmdXs87Espn/T2I9PF61 kVZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693502859; x=1694107659; 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=IGpYSMSGMaMzVYXbXpIcBRTqVDSQW/Rx6E1NVn3C2WI=; b=DlbQmu9IinrgriO81RlrjtNqJ1nrGCOz3P8jUIPl/7MrkMR4IShul5ef4DdOYGU4Az J6ZjhHNBLwwRWP+ajk/Xi99WvUKryJHjKfG4LNcRFn3Ad2h27TIe9199qQQVlDeTfJcZ bgaXltuOecBS70uYwbUwAiFUswSjzhyMK6/V0uxLnPchieLBBTefrIyw7TwuaqdnbHG0 XKqmvbRCDXok13DZHLa5uRFa6oM7KLi8XfdomhGuoU33z+xoQCSvTamgSyZBo2pm8VgQ 1GaxCzog0s3LgS43mV8d2W9K+Bti+jXszmL3og87fEc5HPvYK4GW2gyrb0U3Ej3Vhcop 2NAg== X-Gm-Message-State: AOJu0YyO5S+TVYQkz02CYaRkVdv0v+fX/qFCMY6oSTbOEdvD7naGsmiL P2U+ySqdJT1ZsHkQ5boLdi7fqxzP4dc= X-Google-Smtp-Source: AGHT+IHM52+LHk+bvLLVf508Bnog5bhIewQ3dWNXxgaPeqnmLFShqhUA5zjqg8Ns0fvK1Y9OaOvKBSAvIJc= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a05:6902:1828:b0:d09:6ba9:69ec with SMTP id cf40-20020a056902182800b00d096ba969ecmr9641ybb.4.1693502859202; Thu, 31 Aug 2023 10:27:39 -0700 (PDT) Date: Thu, 31 Aug 2023 10:27:37 -0700 In-Reply-To: <20230830000633.3158416-4-seanjc@google.com> Mime-Version: 1.0 References: <20230830000633.3158416-1-seanjc@google.com> <20230830000633.3158416-4-seanjc@google.com> Message-ID: Subject: Re: [GIT PULL] KVM: x86: MMU changes for 6.6 From: Sean Christopherson To: Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Like Xu Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org +Like On Tue, Aug 29, 2023, Sean Christopherson wrote: > Please pull MMU changes for 6.6, with a healthy dose of KVMGT cleanups mixed in. > The other highlight is finally purging the old MMU_DEBUG code and replacing it > with CONFIG_KVM_PROVE_MMU. > > All KVMGT patches have been reviewed/acked and tested by KVMGT folks. A *huge* > thanks to them for all the reviews and testing, and to Yan in particular. FYI, Like found a brown paper bag bug[*] that causes selftests that move memory regions to fail when compiled with CONFIG_KVM_EXTERNAL_WRITE_TRACKING=y. I'm redoing testing today with that forced on, but barring more falling, the fix is: diff --git a/arch/x86/kvm/mmu/page_track.c b/arch/x86/kvm/mmu/page_track.c index b5af8249eb09..cfd0b8092d06 100644 --- a/arch/x86/kvm/mmu/page_track.c +++ b/arch/x86/kvm/mmu/page_track.c @@ -306,5 +306,5 @@ void kvm_page_track_flush_slot(struct kvm *kvm, struct kvm_memory_slot *slot) bool kvm_page_track_has_external_user(struct kvm *kvm) { - return hlist_empty(&kvm->arch.track_notifier_head.track_notifier_list); + return !hlist_empty(&kvm->arch.track_notifier_head.track_notifier_list); } [*] https://lkml.kernel.org/r/7a6488f2-fef4-6709-6a95-168b0c034ff4%40gmail.com