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 lists1p.gnu.org (lists1p.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 20B4CF5580B for ; Mon, 20 Apr 2026 10:47:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wEm6U-0007Dr-80; Mon, 20 Apr 2026 06:43:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wEm6R-0007AL-TT for qemu-arm@nongnu.org; Mon, 20 Apr 2026 06:43:43 -0400 Received: from p-west3-cluster6-host11-snip4-2.eps.apple.com ([57.103.75.25] helo=outbound.ms.icloud.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wEm6Q-0000dw-Gb for qemu-arm@nongnu.org; Mon, 20 Apr 2026 06:43:43 -0400 Received: from outbound.ms.icloud.com (unknown [127.0.0.2]) by p00-icloudmta-asmtp-us-west-3a-100-percent-1 (Postfix) with ESMTPS id 3311F180047E; Mon, 20 Apr 2026 10:43:39 +0000 (UTC) Dkim-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr; s=sig1; t=1776681821; x=1779273821; bh=IShay1Ni0PZxOVHY3UdoELgY8h3uyJIPv2UhTb9vE4s=; h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme; b=GJ0RwysjOTKv/0vN81m9a1Xte54h1czZpPevEmUKm7EATlxZOSuJyR4GYisLnKrrPmA7zXSh1esoOI4gNck8aZ5sLywfh8gLdrZY/LcYkKY0RvZJfl0BXVmsr3qWon02gIb1TYGF2fw/ktc2rOC+XV7OCMRp6lnaX+z3H+q6Y3SVSDGeQxO32rMFEvzR2w0xTe4wFLlWNpzpC1KKtVZStsVtIyEuLH5HWf+Y/LBnA2RBUSnALbK8YNjUhrVijFeGLoFsu3e13zXZiLeqfT3t+ANJLynaWQCx0N2dBpcPxlTq/SI5qldWfxYjjq70TmmcwEcuLyZzHfwZe/aaNGKQIQ== mail-alias-created-date: 1752046281608 Received: from localhost.localdomain (unknown [17.57.154.37]) by p00-icloudmta-asmtp-us-west-3a-100-percent-1 (Postfix) with ESMTPSA id 4D6111800451; Mon, 20 Apr 2026 10:43:36 +0000 (UTC) From: Mohamed Mediouni To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Mohamed Mediouni , Paolo Bonzini , Phil Dennis-Jordan , Roman Bolshakov , Pierrick Bouvier , Pedro Barbuda , Wei Liu , "Michael S. Tsirkin" , Peter Maydell , Zhao Liu Subject: [PATCH v2 18/38] whpx: i386: enable GuestIdleReg enlightenment Date: Mon, 20 Apr 2026 12:42:28 +0200 Message-ID: <20260420104248.86702-19-mohamed@unpredictable.fr> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260420104248.86702-1-mohamed@unpredictable.fr> References: <20260420104248.86702-1-mohamed@unpredictable.fr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: fuvp5F2VI2h6Nxc3O-HE1SZDUDLubjzx X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIwMDEwNCBTYWx0ZWRfX/YMFW4KNNdDF rHO76IAGCx1rNYSZjFGP1hRvSg345ds5l1AyI46uHColpi69WyxOs4wW9RTwRfwpuvWXqbOwwud c3OFI7F5W3eGPHhzN6KscK5LhFcKwk9DVCEcDYcCz1tgkeVotyoheDUvwMBHpWMGSuEFTxy91rB g8MZg2uLdvINifW4jVuPEROjo+vkx0AlFDaYzEduvMyW3DP2v+tYJe/ZOZV9TaMleBaJm2j2htd jvRI+C+se5KRD+SkhwDKa+hGwXgdycDHCmuZ8+Nl1I83IjKQWrMspbQSTtleiCch5JcVrIWdZah cj4fcjR4UJ0jA8DYhPECWGcyxz4vBPD/NJheg4E2jd7eLIJrhCGet4guFmd764= X-Proofpoint-ORIG-GUID: fuvp5F2VI2h6Nxc3O-HE1SZDUDLubjzx X-Authority-Info-Out: v=2.4 cv=TtzrRTXh c=1 sm=1 tr=0 ts=69e6035c cx=c_apl:c_pps:t_out a=qkKslKyYc0ctBTeLUVfTFg==:117 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=givlr1pFTcEyfNb0yRoA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-20_02,2026-04-17_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 mlxscore=0 phishscore=0 spamscore=0 bulkscore=0 mlxlogscore=982 lowpriorityscore=0 adultscore=0 clxscore=1030 classifier=spam authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2604200104 Received-SPF: pass client-ip=57.103.75.25; envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.icloud.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org Sender: qemu-arm-bounces+qemu-arm=archiver.kernel.org@nongnu.org This corresponds to HV_X64_MSR_GUEST_IDLE (0x400000f0). This enlightenment is only available by the HV when using the Hyper-V LAPIC. Signed-off-by: Mohamed Mediouni --- target/i386/whpx/whpx-all.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c index 550f30d50a..f856022a87 100644 --- a/target/i386/whpx/whpx-all.c +++ b/target/i386/whpx/whpx-all.c @@ -2686,6 +2686,7 @@ int whpx_accel_init(AccelState *as, MachineState *ms) synthetic_features.Bank0.AccessIntrCtrlRegs = 1; synthetic_features.Bank0.SyntheticClusterIpi = 1; synthetic_features.Bank0.DirectSyntheticTimers = 1; + synthetic_features.Bank0.AccessGuestIdleReg = 1; /* * These technically work without the Hyper-V LAPIC * but behave oddly for multi-core VMs. -- 2.50.1 (Apple Git-155)