From patchwork Tue Oct 4 22:56:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 12998762 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9C14BC433FE for ; Tue, 4 Oct 2022 23:00:50 +0000 (UTC) Received: from localhost ([::1]:41234 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ofqu9-0005T0-IZ for qemu-devel@archiver.kernel.org; Tue, 04 Oct 2022 19:00:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49112) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ofqqM-00034C-2I for qemu-devel@nongnu.org; Tue, 04 Oct 2022 18:56:54 -0400 Received: from mail.csgraf.de ([85.25.223.15]:51064 helo=zulu616.server4you.de) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ofqqK-0000H8-GK for qemu-devel@nongnu.org; Tue, 04 Oct 2022 18:56:53 -0400 Received: from localhost.localdomain (dynamic-095-117-005-115.95.117.pool.telefonica.de [95.117.5.115]) by csgraf.de (Postfix) with ESMTPSA id 295E46080113; Wed, 5 Oct 2022 00:56:45 +0200 (CEST) From: Alexander Graf To: qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, Eduardo Habkost , Richard Henderson , Marcelo Tosatti , Paolo Bonzini , Vladislav Yaroshchuk , Roman Bolshakov Subject: [PATCH 0/3] Add TCG & KVM support for MSR_CORE_THREAD_COUNT Date: Wed, 5 Oct 2022 00:56:40 +0200 Message-Id: <20221004225643.65036-1-agraf@csgraf.de> X-Mailer: git-send-email 2.37.0 (Apple Git-136) MIME-Version: 1.0 Received-SPF: pass client-ip=85.25.223.15; envelope-from=agraf@csgraf.de; helo=zulu616.server4you.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Commit 027ac0cb516 ("target/i386/hvf: add rdmsr 35H MSR_CORE_THREAD_COUNT") added support for the MSR_CORE_THREAD_COUNT MSR to HVF. This MSR is mandatory to execute macOS when run with -cpu host,+hypervisor. This patch set adds support for the very same MSR to TCG as well as KVM - as long as host KVM is recent enough to support MSR trapping. With this support added, I can successfully execute macOS guests in KVM with an APFS enabled OVMF build, a valid applesmc plus OSK and -cpu Skylake-Client,+invtsc,+hypervisor Alex Alexander Graf (3): x86: Implement MSR_CORE_THREAD_COUNT MSR i386: kvm: Add support for MSR filtering KVM: x86: Implement MSR_CORE_THREAD_COUNT MSR target/i386/kvm/kvm.c | 145 +++++++++++++++++++++++++++ target/i386/kvm/kvm_i386.h | 11 ++ target/i386/tcg/sysemu/misc_helper.c | 5 + 3 files changed, 161 insertions(+)