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 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 DF08AD3E797 for ; Thu, 11 Dec 2025 06:46:09 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vTaR2-0001zb-Jo; Thu, 11 Dec 2025 01:45:56 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vTaQr-0001nl-5R for qemu-devel@nongnu.org; Thu, 11 Dec 2025 01:45:47 -0500 Received: from mgamail.intel.com ([198.175.65.16]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vTaQm-0006HZ-EU for qemu-devel@nongnu.org; Thu, 11 Dec 2025 01:45:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765435541; x=1796971541; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ray+Oqw/uM8jcX8Iet4O0MoIkdoAsGFxvsVvR05hagQ=; b=Apk9x9J3elZb046Yl4emcMt6WZiOQ6OQuttZhEevCcOO2VLIzRFq8oHe haX9vJPDnV9if5OgLLMyaRW4ydTHvPpfWg99L7Z8QufTHgFrkNn6UKGgE pi663D1PRQNi50DuETWRj2Y6+zIBGEJ8tIGo9MA6bdB278ODuenMVLLfq kqIgTrR0gmIVP+CX+srW0V2ReQCCwCDK9OWoacdKF49OAI4GhxgYGXUDy n9CmCvv0NzNMnxeSqwjB2/YfHE4VYGw/zMwAAoY/xBYRnQw5fA8jfQPV4 1FrADXxSK9MCrUyTjqeLnfhq+7BZLXy6kpvORQ1NwHqtHpGXkQjijr7ym Q==; X-CSE-ConnectionGUID: sZtPupspRqSB7er+kIaF1w== X-CSE-MsgGUID: H3JkXRwWRBWejZGcfIyTEw== X-IronPort-AV: E=McAfee;i="6800,10657,11638"; a="67584507" X-IronPort-AV: E=Sophos;i="6.20,265,1758610800"; d="scan'208";a="67584507" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2025 22:45:39 -0800 X-CSE-ConnectionGUID: Qr86eNZ8Q5aDJS9ERNWV1g== X-CSE-MsgGUID: BD9pkxitRqSC7SDQztwDCg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,265,1758610800"; d="scan'208";a="196495042" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.39]) by orviesa009.jf.intel.com with ESMTP; 10 Dec 2025 22:45:35 -0800 From: Zhao Liu To: Paolo Bonzini , =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Xu , Fabiano Rosas Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, "Chang S . Bae" , Zide Chen , Xudong Hao , Zhao Liu Subject: [PATCH v2 9/9] i386/cpu: Mark APX xstate as migratable Date: Thu, 11 Dec 2025 15:09:42 +0800 Message-Id: <20251211070942.3612547-10-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251211070942.3612547-1-zhao1.liu@intel.com> References: <20251211070942.3612547-1-zhao1.liu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=198.175.65.16; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org APX xstate is user xstate. The related registers are cached in X86CPUState. And there's a vmsd "vmstate_apx" to migrate these registers. Thus, it's safe to mark it as migratable. Tested-by: Xudong Hao Signed-off-by: Zhao Liu --- target/i386/cpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 9cc553a86442..f703b1478d71 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1544,7 +1544,8 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .migratable_flags = XSTATE_FP_MASK | XSTATE_SSE_MASK | XSTATE_YMM_MASK | XSTATE_BNDREGS_MASK | XSTATE_BNDCSR_MASK | XSTATE_OPMASK_MASK | XSTATE_ZMM_Hi256_MASK | XSTATE_Hi16_ZMM_MASK | - XSTATE_PKRU_MASK | XSTATE_XTILE_CFG_MASK | XSTATE_XTILE_DATA_MASK, + XSTATE_PKRU_MASK | XSTATE_XTILE_CFG_MASK | XSTATE_XTILE_DATA_MASK | + XSTATE_APX_MASK, }, [FEAT_XSAVE_XCR0_HI] = { .type = CPUID_FEATURE_WORD, -- 2.34.1