From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932764AbcHVX6d (ORCPT ); Mon, 22 Aug 2016 19:58:33 -0400 Received: from mail-cys01nam02on0065.outbound.protection.outlook.com ([104.47.37.65]:41796 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756228AbcHVX6Y (ORCPT ); Mon, 22 Aug 2016 19:58:24 -0400 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=brijesh.singh@amd.com; Subject: [RFC PATCH v1 08/28] Access BOOT related data encrypted with SEV active From: Brijesh Singh To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Date: Mon, 22 Aug 2016 19:25:14 -0400 Message-ID: <147190831414.9523.1885664762210149209.stgit@brijesh-build-machine> In-Reply-To: <147190820782.9523.4967724730957229273.stgit@brijesh-build-machine> References: <147190820782.9523.4967724730957229273.stgit@brijesh-build-machine> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; 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Update the architecture override in early_memremap to keep the encryption attribute when mapping this data. Signed-off-by: Tom Lendacky --- arch/x86/mm/ioremap.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index e3bdc5a..2ea6deb 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -429,10 +429,11 @@ pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr, pgprot_t prot) { /* - * If memory encryption is enabled and BOOT_DATA is being mapped - * then remove the encryption bit. + * If memory encryption is enabled, we are not running with + * SEV active and BOOT_DATA is being mapped then remove the + * encryption bit */ - if (_PAGE_ENC && (owner == BOOT_DATA)) + if (_PAGE_ENC && !sev_active && (owner == BOOT_DATA)) prot = __pgprot(pgprot_val(prot) & ~_PAGE_ENC); return prot;