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.trustedfirmware.org (lists.trustedfirmware.org [18.214.241.189]) (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 A3A6CF588C2 for ; Mon, 20 Apr 2026 12:29:34 +0000 (UTC) Received: from lists.trustedfirmware.org (localhost [127.0.0.1]) by lists.trustedfirmware.org (Postfix) with ESMTP id E76E844A1F for ; Mon, 20 Apr 2026 12:29:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.trustedfirmware.org; s=2024; t=1776688174; bh=TjpqsBK8zzamLpyz9+s5hoi4/jVAJ12AOShG0716e1g=; h=Date:To:Subject:References:In-Reply-To:CC:List-Id:List-Archive: List-Help:List-Owner:List-Post:List-Subscribe:List-Unsubscribe: From:Reply-To:From; b=xPHm77Xu690Z87GQjD34N0GMsL8L0kJecnrMasYtQeNJdl9W6QP5+2OXs0K6zrR/Y TvyXC1SLUGmXh64UAdvFWws998TI43YZY89Qbf92tjqKJHtfdFWzdT4ZUWuVrEQxG4 SRRK0iAXuuIeIjXLjEowiNaApXaBXzWZemTPQ+zwPZEWgvpAD6s4rJRwqWKKNWz2UU u/qCll1d8BLmRXrrE0VZ9iTEEZlB4kSKSRpID9qWBZ3TMzCN7/4a5ZQR6mMQ65EWpm usOmCPbW6m0ybqYjyq8ozWlBWy74Ms3UHm59KZjq5toFzw6zto1xnVFP2W/QUgM94U IZI2M8oecB7Lg== Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by lists.trustedfirmware.org (Postfix) with ESMTPS id C18054326A for ; Mon, 20 Apr 2026 12:29:27 +0000 (UTC) Authentication-Results: lists.trustedfirmware.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=qlT38oVO; dkim-atps=neutral Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 3729143989; Mon, 20 Apr 2026 12:29:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BAC3C2BCB6; Mon, 20 Apr 2026 12:29:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776688167; bh=TjpqsBK8zzamLpyz9+s5hoi4/jVAJ12AOShG0716e1g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qlT38oVOJS+7xYmfCVi+X6ww7o2PPLQmsfevNenmh75zbkuf5WSWN93F/4scfDyfW As+XSzGGLYNhsjISB1Feqj0/9Rhz40KwIEiMWV3LZGG2BMj7wpMlCmsq9Uc4eSNhyP +UtWK4RvvEB+9DXvhWe3UEEgnaQPCeBoaoutg5CFA85bAVvMqF6kv0Ycp/vZ3f+50Z dYBhdXyMZM/lRlf5zr3EUZwyN13tBaLz1NsEQxCM/cm2x7MzzrCabaF/2K187kAQ3w vhjcznDiAD24LqqDMVVTSd6eiLah1113OS4vwMgtYrnYaMOu11XMDj8T25XHGRLVsE MCC05ubE58zHg== Date: Mon, 20 Apr 2026 17:59:22 +0530 To: Hirokazu Honda Subject: Re: [PATCH] tee: optee: Allow MT_NORMAL_TAGGED shared memory Message-ID: References: <20260416221819.3600289-1-hiroh@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260416221819.3600289-1-hiroh@google.com> X-Rspamd-Action: no action X-Spamd-Result: default: False [-4.50 / 15.00]; BAYES_HAM(-3.00)[99.99%]; DWL_DNSWL_LOW(-1.00)[kernel.org:dkim]; DMARC_POLICY_ALLOW(-0.50)[kernel.org,quarantine]; MID_RHS_NOT_FQDN(0.50)[]; R_DKIM_ALLOW(-0.20)[kernel.org:s=k20201202]; R_SPF_ALLOW(-0.20)[+ip4:172.234.252.31]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:63949, ipnet:172.234.224.0/19, country:SG]; ARC_NA(0.00)[]; MISSING_XM_UA(0.00)[]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; DNSWL_BLOCKED(0.00)[100.75.92.58:received]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_HAS_DN(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; NEURAL_HAM(-0.00)[-1.000]; RCPT_COUNT_THREE(0.00)[4]; DKIM_TRACE(0.00)[kernel.org:+] X-Rspamd-Server: lists.trustedfirmware.org X-Rspamd-Queue-Id: C18054326A X-Spamd-Bar: ---- Message-ID-Hash: GJS2FORHA23JRZAUE4PUKLNQJ5JJEQRI X-Message-ID-Hash: GJS2FORHA23JRZAUE4PUKLNQJ5JJEQRI X-MailFrom: sumit.garg@kernel.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-op-tee.lists.trustedfirmware.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: op-tee@lists.trustedfirmware.org, linux-kernel@vger.kernel.org X-Mailman-Version: 3.3.5 Precedence: list List-Id: Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Sumit Garg via OP-TEE Reply-To: Sumit Garg On Thu, Apr 16, 2026 at 03:18:19PM -0700, Hirokazu Honda wrote: > From: Hirokazu Honda > > On ARM64, shared memory can have MT_NORMAL_TAGGED attribute when using > the Memory Tagging Extension (MTE). The OP-TEE driver needs to > recognize this as normal memory to allow sharing such buffers with the > Secure World. > > Signed-off-by: Hirokazu Honda > --- > drivers/tee/optee/call.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) Reviewed-by: Sumit Garg -Sumit > > diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c > index 9effe88049e9..e046aff61828 100644 > --- a/drivers/tee/optee/call.c > +++ b/drivers/tee/optee/call.c > @@ -602,7 +602,8 @@ static bool is_normal_memory(pgprot_t p) > return (((pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC) || > ((pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEBACK)); > #elif defined(CONFIG_ARM64) > - return (pgprot_val(p) & PTE_ATTRINDX_MASK) == PTE_ATTRINDX(MT_NORMAL); > + return ((pgprot_val(p) & PTE_ATTRINDX_MASK) == PTE_ATTRINDX(MT_NORMAL)) || > + ((pgprot_val(p) & PTE_ATTRINDX_MASK) == PTE_ATTRINDX(MT_NORMAL_TAGGED)); > #else > #error "Unsupported architecture" > #endif > -- > 2.54.0.rc1.513.gad8abe7a5a-goog >