From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7BE2486425; Fri, 11 Sep 2026 21:33:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789162401; cv=none; b=A8YitdoY6NWohbDMEoqsI+b3RR2adKkll6tlbdlxetWTMf7o/Lv3R2qXCha6AHL4geeaKEnYJOjxjpw5Y1jRU+Hyz7BVgNNpu2OKHBkZy/MIRSlbR6ZLsAZ1v71ov//DthNeNc/6WglKsk+SHqL5YtjuR0NnhcmDEqOoBmqtO+c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789162401; c=relaxed/simple; bh=LLh915AQdAp4J10TCNRimZZoYeqU7drKfQ5rboSF9y0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qFmioBj9tbXXrLVu9ehyZZmC5IvDM2us0gcpmAsAkz3MZZTlvDT2FxzdFekKmqMJzx9cDXeQm4PwM9Bkpg9qm71MYERFQWXYptzlQj3vVuEeWh64Ix/z0Sz3qGAZvRsqza/lH2KK7bMC3XUT6HtS3RRQAPmgaiK+30uiub1HbT0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=is0jUT2T; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="is0jUT2T" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1789162399; x=1820698399; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LLh915AQdAp4J10TCNRimZZoYeqU7drKfQ5rboSF9y0=; b=is0jUT2TmWOokkEX4FGMe/1MuibjTCuZkhbqW3FNMbCRGA/J56R6Fdhn wxbSnjwQwiJaqkqHPBKY+JYvNgYTCdVbmKTI2+TvwHra/9/Gdqx7GivBF BhKJdSc/6H5iAgtEOauqlr58zdmYrHuwwGvkaQN/4ijjQmzvUFfQp7k66 YIzFC1owJ6Ai3zTkrx4oGvYhl0dmreNosxgC6/xyamcHQ/+YmrtZ5oUOk VVg8UhQhXJGFH/vOY18L/fiElHERNj/Im0Di/79nV4HWnMhUXqRRLQXo4 /CTHlOsSmNw0yELsmIrkyznGaSVfHiTq49/doFJOMqT6DK79h5GLLLmw5 Q==; X-CSE-ConnectionGUID: 3EsP74/4ROe9tWo+JTZcLQ== X-CSE-MsgGUID: GlA1+uO7SamTjXboBcXzCA== X-IronPort-AV: E=McAfee;i="6800,10657,11902"; a="89506468" X-IronPort-AV: E=Sophos;i="6.27,98,1787036400"; d="scan'208";a="89506468" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2026 14:33:18 -0700 X-CSE-ConnectionGUID: oMrzMjhKSuekEVWUIbJibA== X-CSE-MsgGUID: Dzin76L+QiuFAL6LDY6KzA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,98,1787036400"; d="scan'208";a="265833602" Received: from smtp.ostc.intel.com ([10.54.69.131]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Sep 2026 14:33:17 -0700 Received: from cwf-2s5.sh.intel.com (cwf-2s5.sh.intel.com [10.239.48.132]) by smtp.ostc.intel.com (Postfix) with ESMTP id 738646393; Fri, 11 Sep 2026 14:33:11 -0700 (PDT) From: Shreshth Srivastava To: jgross@suse.com, linux-kernel@vger.kernel.org, x86@kernel.org, linux-perf-users@vger.kernel.org, linux-hyperv@vger.kernel.org, kvm@vger.kernel.org, linux-coco@lists.linux.dev Cc: acme@kernel.org, adrian.hunter@intel.com, alexander.shishkin@linux.intel.com, bp@alien8.de, dave.hansen@linux.intel.com, decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com, irogers@google.com, james.clark@linaro.org, jolsa@kernel.org, kas@kernel.org, kys@microsoft.com, longli@microsoft.com, mark.rutland@arm.com, mhklinux@outlook.com, mingo@redhat.com, namhyung@kernel.org, pbonzini@redhat.com, peterz@infradead.org, rick.p.edgecombe@intel.com, seanjc@google.com, tglx@kernel.org, wei.liu@kernel.org, shreshth.srivastava@intel.com Subject: Re: [PATCH v3 13/13] x86/msr: Simplify some rdmsrq() use cases Date: Fri, 11 Sep 2026 17:33:10 -0400 Message-ID: <20260911213310.381839-1-shreshth.srivastava@intel.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260821105709.1671132-1-jgross@suse.com> References: <20260821105709.1671132-1-jgross@suse.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Juergen, I'm working on a v3 of Dave's "x86/msr: Consolidate native/paravirt MSR functions" series on top of yours, so I tried testing this patch. While I'm here: you mentioned you'd send a V3 after rc1 if conflicts turned up. Is that still the plan? I wasn't sure whether to base on v2 plus the respins of 4 and 13, or wait. Most of the code this touches can't run on my box, so I compared compiled output instead. Built patches 1-12, then 1-13, with the same .config and compiler, and diffed "objdump -d" output for every .o in both trees. All 9396 objects came out identical. The 1-13 kernel boots fine under KVM. Only tried the one config: x86_64, gcc 11.5.0, CPU_SUP_{INTEL,AMD,ZHAOXIN}=y, HYPERV=y, KVM_INTEL=y, KVM_INTEL_TDX=y. Tested-by: Shreshth Srivastava