From patchwork Mon Jul 15 04:49:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 13732877 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 0AB6AC2BD09 for ; Mon, 15 Jul 2024 04:36:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sTDQ3-0000GP-Mn; Mon, 15 Jul 2024 00:34:35 -0400 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 1sTDQ2-00008m-27 for qemu-devel@nongnu.org; Mon, 15 Jul 2024 00:34:34 -0400 Received: from mgamail.intel.com ([198.175.65.10]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sTDQ0-0004GK-DW for qemu-devel@nongnu.org; Mon, 15 Jul 2024 00:34:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721018073; x=1752554073; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=M+INEDceyzqNpPErcKN6L7u48TTH5fEDjgdcYW5fAXE=; b=L9WJ0znE42sAFxwHjkyiXzrs9i0BgVuG+3NoiKzza+gw83Yd8wRq+PWv UvUMZqzvL8m8t6iiRXvoAN6Vj1cFdfUafeuwwdXPmVTJGG6bvUGKc/4pq 3bJd6liHN8a8D7q2PJqs46R5okk9vwTRx9yDRr15CqyUdb3gUMe1wuEyq UoU1w6c1JDPFnq44M9iDcHa6kHjDkSolKY3MJ+WrPRL+8oyJWxF0Tdtzp h5DOSlPzUWuxIzxhw2NFXQIrv+GO3PzgaHejIwWkC5xPUkwFl4a7pAS0c wgQOpgyZWBUR8hfFWU2ouaOtYs5tNpPQ2UrnxiLwNiaqNxcWqULIhgPpJ g==; X-CSE-ConnectionGUID: Z6n9XoLlQsue3ig7mHUeUg== X-CSE-MsgGUID: fQnIs3QYQcKi3TPcY49KzA== X-IronPort-AV: E=McAfee;i="6700,10204,11133"; a="35809839" X-IronPort-AV: E=Sophos;i="6.09,209,1716274800"; d="scan'208";a="35809839" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2024 21:34:31 -0700 X-CSE-ConnectionGUID: IUZVOMfsSeuOAnE6OaYd3g== X-CSE-MsgGUID: FrKreY+VTgumQl8oR9BvwA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,209,1716274800"; d="scan'208";a="54043083" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by fmviesa004.fm.intel.com with ESMTP; 14 Jul 2024 21:34:28 -0700 From: Zhao Liu To: Paolo Bonzini , Richard Henderson , Eduardo Habkost , "Michael S . Tsirkin" , Marcel Apfelbaum , Marcelo Tosatti Cc: Xiaoyao Li , Pankaj Gupta , Zide Chen , qemu-devel@nongnu.org, kvm@vger.kernel.org, Zhao Liu Subject: [PATCH v3 4/8] target/i386/kvm: Save/load MSRs of kvmclock2 (KVM_FEATURE_CLOCKSOURCE2) Date: Mon, 15 Jul 2024 12:49:51 +0800 Message-Id: <20240715044955.3954304-5-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240715044955.3954304-1-zhao1.liu@intel.com> References: <20240715044955.3954304-1-zhao1.liu@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.10; 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, 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 MSR_KVM_SYSTEM_TIME_NEW and MSR_KVM_WALL_CLOCK_NEW are bound to kvmclock2 (KVM_FEATURE_CLOCKSOURCE2). Add the save/load support for these 2 MSRs just like kvmclock MSRs. Signed-off-by: Zhao Liu --- target/i386/cpu.h | 2 ++ target/i386/kvm/kvm.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index b59bdc1c9d9d..35dc68631989 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1826,6 +1826,8 @@ typedef struct CPUArchState { uint64_t system_time_msr; uint64_t wall_clock_msr; + uint64_t system_time_new_msr; + uint64_t wall_clock_new_msr; uint64_t steal_time_msr; uint64_t async_pf_en_msr; uint64_t async_pf_int_msr; diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index ac434e83b64c..64e54beac7b3 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -3423,6 +3423,12 @@ static int kvm_put_msrs(X86CPU *cpu, int level) kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME, env->system_time_msr); kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK, env->wall_clock_msr); } + if (env->features[FEAT_KVM] & CPUID_KVM_CLOCK2) { + kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME_NEW, + env->system_time_new_msr); + kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK_NEW, + env->wall_clock_new_msr); + } if (env->features[FEAT_KVM] & CPUID_KVM_ASYNCPF_INT) { kvm_msr_entry_add(cpu, MSR_KVM_ASYNC_PF_INT, env->async_pf_int_msr); } @@ -3901,6 +3907,10 @@ static int kvm_get_msrs(X86CPU *cpu) kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME, 0); kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK, 0); } + if (env->features[FEAT_KVM] & CPUID_KVM_CLOCK2) { + kvm_msr_entry_add(cpu, MSR_KVM_SYSTEM_TIME_NEW, 0); + kvm_msr_entry_add(cpu, MSR_KVM_WALL_CLOCK_NEW, 0); + } if (env->features[FEAT_KVM] & CPUID_KVM_ASYNCPF_INT) { kvm_msr_entry_add(cpu, MSR_KVM_ASYNC_PF_INT, 0); } @@ -4167,6 +4177,12 @@ static int kvm_get_msrs(X86CPU *cpu) case MSR_KVM_WALL_CLOCK: env->wall_clock_msr = msrs[i].data; break; + case MSR_KVM_SYSTEM_TIME_NEW: + env->system_time_new_msr = msrs[i].data; + break; + case MSR_KVM_WALL_CLOCK_NEW: + env->wall_clock_new_msr = msrs[i].data; + break; case MSR_MCG_STATUS: env->mcg_status = msrs[i].data; break;