From patchwork Mon Aug 15 04:17:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirill A. Shutemov" X-Patchwork-Id: 12943081 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0804C00140 for ; Mon, 15 Aug 2022 04:15:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BD2B26B0075; Mon, 15 Aug 2022 00:15:07 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BB7418D0003; Mon, 15 Aug 2022 00:15:07 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A4AFA8D0002; Mon, 15 Aug 2022 00:15:07 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 9912C6B0073 for ; Mon, 15 Aug 2022 00:15:07 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 704471A0DA1 for ; Mon, 15 Aug 2022 04:15:07 +0000 (UTC) X-FDA: 79800511854.09.941E3DF Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by imf21.hostedemail.com (Postfix) with ESMTP id 3B8181C008B for ; Mon, 15 Aug 2022 04:15:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660536906; x=1692072906; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4tAN31RYYpJnhaGsltGsp329SN2LQE0u8p1NIAAYm9M=; b=O0xljU88jxxKk26QJ5zgORL6QgkC84QOpDHkzgJdQ5U+9U5UiYAMcFHd +a++nzZy3DlZ71rgE0aGt7GiCSEtuo1CsXkS4J0ADU4+gIbM7DGyAvnRs 6KKBJN53+zNc9TJNWL5n2QFL72dcr8pLdBSHnAq60b/qK3P9TGSHdh6+9 puoTX2KGK9/sHvftOskhv4lHPeTtNIHLNdtNm6wxR/biRBSW/OoElHe// wW4ZC0ky8aG0x7ssyOA6B+dRNFgszzWMZMsctVsvv39RNaT3Pl6QRBGsM PNkd6kmt+Y1Z2YSbXBU5+WMFVy8w2l9ELn/sXA2itDRO+377UeXNG5hw4 g==; X-IronPort-AV: E=McAfee;i="6400,9594,10439"; a="378175161" X-IronPort-AV: E=Sophos;i="5.93,237,1654585200"; d="scan'208";a="378175161" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Aug 2022 21:15:04 -0700 X-IronPort-AV: E=Sophos;i="5.93,237,1654585200"; d="scan'208";a="934354071" Received: from dmalka-mobl.ger.corp.intel.com (HELO box.shutemov.name) ([10.249.42.26]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Aug 2022 21:15:01 -0700 Received: by box.shutemov.name (Postfix, from userid 1000) id 385CE104A64; Mon, 15 Aug 2022 07:18:04 +0300 (+03) From: "Kirill A. Shutemov" To: Dave Hansen , Andy Lutomirski , Peter Zijlstra Cc: x86@kernel.org, Kostya Serebryany , Andrey Ryabinin , Andrey Konovalov , Alexander Potapenko , Taras Madan , Dmitry Vyukov , "H . J . Lu" , Andi Kleen , Rick Edgecombe , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv6 01/11] x86/mm: Fix CR3_ADDR_MASK Date: Mon, 15 Aug 2022 07:17:53 +0300 Message-Id: <20220815041803.17954-2-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220815041803.17954-1-kirill.shutemov@linux.intel.com> References: <20220815041803.17954-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 ARC-Authentication-Results: i=1; imf21.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=O0xljU88; spf=none (imf21.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 192.55.52.43) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1660536907; a=rsa-sha256; cv=none; b=rx+kMHR6qy0/wunBCnWSigRRdD3d2FjGQJTxvDGmOjnsUnUGQZwAe2yNdF7Rs+uSk16fNI KTP1VQGltS1YSAuTvsVmWwRm2Kl58BjSeqiZ0x5mRyk/uPDYkhZrKCzl5gs5hl0kFV78eb waAmyBCLCGbBz8vgg12M2MYypOGEMIE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1660536907; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=dJ1MD1tR0kbIlfBMZ/64C/omQnk3Uim6C9PqLfZ3qcI=; b=10mEvLuq8RPt/ajpeU/t9yfJ/ziXMlhBkXVZBMxoUQvdbjXHKtD9KtJgSuOUsnQ1WY+Mn9 7x/uAuDuA348rgx3uZ2fMluvunu2gHLVT5rasjJLaisjfegZkFxnJ1+SNI3SR6kMzoW3hO +OHsL6UIxJxK7P3TsmZFy3MddVtjWy0= Authentication-Results: imf21.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=O0xljU88; spf=none (imf21.hostedemail.com: domain of kirill.shutemov@linux.intel.com has no SPF policy when checking 192.55.52.43) smtp.mailfrom=kirill.shutemov@linux.intel.com; dmarc=fail reason="No valid SPF" header.from=intel.com (policy=none) X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 3B8181C008B X-Stat-Signature: brcuyxw9kp6yybxp5s4oxsicud871yyk X-Rspam-User: X-HE-Tag: 1660536905-950615 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The mask must not include bits above physical address mask. These bits are reserved and can be used for other things. Bits 61 and 62 are used for Linear Address Masking. Signed-off-by: Kirill A. Shutemov Reviewed-by: Rick Edgecombe Reviewed-by: Alexander Potapenko Tested-by: Alexander Potapenko --- arch/x86/include/asm/processor-flags.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h index 02c2cbda4a74..a7f3d9100adb 100644 --- a/arch/x86/include/asm/processor-flags.h +++ b/arch/x86/include/asm/processor-flags.h @@ -35,7 +35,7 @@ */ #ifdef CONFIG_X86_64 /* Mask off the address space ID and SME encryption bits. */ -#define CR3_ADDR_MASK __sme_clr(0x7FFFFFFFFFFFF000ull) +#define CR3_ADDR_MASK __sme_clr(PHYSICAL_PAGE_MASK) #define CR3_PCID_MASK 0xFFFull #define CR3_NOFLUSH BIT_ULL(63)