From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C825C1CBE89 for ; Fri, 8 Nov 2024 08:22:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731054142; cv=none; b=fIQPtNPsMOTO+SsdZY82NrNvSgYOS0yTp7Yxel7PAvcxZhSLkMgM8SebFYtmKdel8+gD9nnd2nkWQABFqJvqqUmvZezZBNjlwTyl3qoi9+xInqqyw4a/a/ZzHZlALGljCmllyOe1u5JQ2IWfa5eBsHvINoLP2gCReWyqTEWHGjI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731054142; c=relaxed/simple; bh=f6EoFzHRpCMkEuXIjPRhDKjjeZQbSKQ65bGXAVW6/vw=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=gIj91Xa/WxlB+yETW78C0ZJQpaPHXwsFLfFFvz95SWr/EHKpOcL+nVswIlC2kxpOw3ZYrKUaK8y/t6MtbxQ6ok3HqcAG20VculFOkH9BQV93X9zakJvrtUjCmQqkQpEx0FDcIuYfJmp1AAbtn8FWlpiBBT27JI5TrldcmCFzrHE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=GDzBmlBg; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=2igt2uaZ; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=GDzBmlBg; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=2igt2uaZ; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="GDzBmlBg"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="2igt2uaZ"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="GDzBmlBg"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="2igt2uaZ" Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 01C491FE05; Fri, 8 Nov 2024 08:22:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1731054139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JD92u0ApEqPQXZLX5XdEaWojoMpzbZHbQYqn6h7qTJs=; b=GDzBmlBgXKUYnfva+vcwFmPS0M/XKoxmOU8oL5mXnr6A4dciXf+1PcAnDBTRIgiwk0EpfQ 4cRm98cqQsNAl1b04iSva76+L4+wMcch561lZMKRU06DOLd/YoEecdsROUowLUtdOBYgty z6hypSScExo4uivvQ9WlbruWa0Osdio= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1731054139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JD92u0ApEqPQXZLX5XdEaWojoMpzbZHbQYqn6h7qTJs=; b=2igt2uaZhfmjo2bRiaOXgnbnRbBTMWSkmnY5PPlbP4wRRUTrjtyXG2O3vVD1L53UWVUBSH 5H9jufzxni2qFNAw== Authentication-Results: smtp-out2.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1731054139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JD92u0ApEqPQXZLX5XdEaWojoMpzbZHbQYqn6h7qTJs=; b=GDzBmlBgXKUYnfva+vcwFmPS0M/XKoxmOU8oL5mXnr6A4dciXf+1PcAnDBTRIgiwk0EpfQ 4cRm98cqQsNAl1b04iSva76+L4+wMcch561lZMKRU06DOLd/YoEecdsROUowLUtdOBYgty z6hypSScExo4uivvQ9WlbruWa0Osdio= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1731054139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JD92u0ApEqPQXZLX5XdEaWojoMpzbZHbQYqn6h7qTJs=; b=2igt2uaZhfmjo2bRiaOXgnbnRbBTMWSkmnY5PPlbP4wRRUTrjtyXG2O3vVD1L53UWVUBSH 5H9jufzxni2qFNAw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id BC64613967; Fri, 8 Nov 2024 08:22:18 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id Q8/WLDrKLWeqDAAAD6G6ig (envelope-from ); Fri, 08 Nov 2024 08:22:18 +0000 Date: Fri, 08 Nov 2024 09:22:18 +0100 Message-ID: <877c9egmo5.wl-tiwai@suse.de> From: Takashi Iwai To: "Jarkko Sakkinen" Cc: "Paul Menzel" , "Takashi Iwai" , "Peter Huewe" , "Jason Gunthorpe" , , "Andy Liang" , Subject: Re: [PATCH] tpm/eventlog: Use kvmalloc() for event log buffer In-Reply-To: References: <20241107112054.28448-1-tiwai@suse.de> <87f11490-06ab-43a5-8058-102722a3c3ba@molgen.mpg.de> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.2 Mule/6.0 Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=ISO-8859-7 Content-Transfer-Encoding: 8bit X-Spam-Level: X-Spamd-Result: default: False [-3.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCPT_COUNT_SEVEN(0.00)[8]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmx.de]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[molgen.mpg.de,suse.de,gmx.de,ziepe.ca,vger.kernel.org,hpe.com]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[bootlin.com:url,suse.de:mid,imap1.dmz-prg2.suse.org:helo] X-Spam-Score: -3.30 X-Spam-Flag: NO On Thu, 07 Nov 2024 21:42:50 +0100, Jarkko Sakkinen wrote: > > On Thu Nov 7, 2024 at 2:17 PM EET, Paul Menzel wrote: > > Dear Takashi, > > > > > > Thank you for the patch. > > > > Am 07.11.24 um 12:18 schrieb Takashi Iwai: > > > The TPM2 ACPI table may request a large size for the event log, and it > > > may be over the max size of kmalloc(). When this happens, the driver > > > > What is kmalloc()¢s maximum size? > > For reference: https://elixir.bootlin.com/linux/v6.11.6/source/include/linux/slab.h#L367 > > So it would be 1UL << 22 i.e. 4 MB at least. Not sure if MAX_PAGE_ORDER > is larger than 10 on x86-64. Ah thanks, it has been changed. Takashi