From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 E7F5738DD1 for ; Thu, 9 Nov 2023 16:38:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="MnXRvEml" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2385E3C28; Thu, 9 Nov 2023 08:38:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699547928; x=1731083928; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=soB8pRMkLG9aXZK8EmflhbiouvePcdMHUpWBXaUHVu0=; b=MnXRvEmlWPUab1efZh4WhGbmw/mXIFoYCbF1ZNtAENeiUzS6lxkPnDeb bIac/58r1AEFhNFaORu6nso0eGCO2mkNt/0WAvsabPgClkoIppForqhrQ cDvKpy97SwTYMDEctGDeHpKkIZCVAmwWWLQVuSF62LP8+Z+KBi1MiJaM5 /ipYTmj70YHW0xzxSiyHKt+TFM1Glhcp6ddZ51tRNT+G6hh6aAOgjd6WU cd2nD8K3EvpNziTwW+CfCU5dSBTdCfqCbIvrlR1rI5aB6LQcZg9QsWh2E PQd4QBYGWxiOKxMxHV6HgrpApdDreka90akRgeBMZTOUNB8KhrVBQwvmy A==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375057575" X-IronPort-AV: E=Sophos;i="6.03,289,1694761200"; d="scan'208";a="375057575" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 08:38:46 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="854125798" X-IronPort-AV: E=Sophos;i="6.03,289,1694761200"; d="scan'208";a="854125798" Received: from tiwariv-mobl.amr.corp.intel.com (HELO [10.212.165.194]) ([10.212.165.194]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 08:38:45 -0800 Message-ID: Date: Thu, 9 Nov 2023 08:38:44 -0800 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v15 05/23] x86/virt/tdx: Handle SEAMCALL no entropy error in common code Content-Language: en-US To: Kai Huang , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: x86@kernel.org, kirill.shutemov@linux.intel.com, peterz@infradead.org, tony.luck@intel.com, tglx@linutronix.de, bp@alien8.de, mingo@redhat.com, hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com, rafael@kernel.org, david@redhat.com, dan.j.williams@intel.com, len.brown@intel.com, ak@linux.intel.com, isaku.yamahata@intel.com, ying.huang@intel.com, chao.gao@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, nik.borisov@suse.com, bagasdotme@gmail.com, sagis@google.com, imammedo@redhat.com References: <9565b2ccc347752607039e036fd8d19d78401b53.1699527082.git.kai.huang@intel.com> From: Dave Hansen Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/9/23 03:55, Kai Huang wrote: > Some SEAMCALLs use the RDRAND hardware and can fail for the same reasons > as RDRAND. Use the kernel RDRAND retry logic for them. > > There are three __seamcall*() variants. Do the SEAMCALL retry in common > code and add a wrapper for each of them. The new common wrapper looks great, thanks: Reviewed-by: Dave Hansen