Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755379Ab1F0I21 (ORCPT ); Mon, 27 Jun 2011 04:28:27 -0400 Received: from mga14.intel.com ([143.182.124.37]:21556 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757315Ab1F0I0H (ORCPT ); Mon, 27 Jun 2011 04:26:07 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.65,431,1304319600"; d="scan'208";a="19009095" From: Huang Ying To: Len Brown Cc: linux-kernel@vger.kernel.org, Andi Kleen , Tony Luck , ying.huang@intel.com, linux-acpi@vger.kernel.org, mjg59@srcf.ucam.org Subject: [PATCH -v2 2/4] ACPI, APEI, GHES, Support disable GHES at boot time Date: Mon, 27 Jun 2011 16:25:58 +0800 Message-Id: <1309163160-3201-3-git-send-email-ying.huang@intel.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1309163160-3201-1-git-send-email-ying.huang@intel.com> References: <1309163160-3201-1-git-send-email-ying.huang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1915 Lines: 77 Some machine may have broken firmware so that GHES and firmware first mode should be disabled. This patch adds support to that. Signed-off-by: Huang Ying --- drivers/acpi/apei/ghes.c | 8 ++++++++ drivers/acpi/apei/hest.c | 17 +++++++++-------- include/acpi/apei.h | 1 + 3 files changed, 18 insertions(+), 8 deletions(-) --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -77,6 +77,9 @@ struct ghes { }; }; +int ghes_disable; +module_param_named(disable, ghes_disable, bool, 0); + static int ghes_panic_timeout __read_mostly = 30; /* @@ -665,6 +668,11 @@ static int __init ghes_init(void) return -EINVAL; } + if (ghes_disable) { + pr_info(GHES_PFX "GHES is not enabled!\n"); + return -EINVAL; + } + rc = ghes_ioremap_init(); if (rc) goto err; --- a/drivers/acpi/apei/hest.c +++ b/drivers/acpi/apei/hest.c @@ -230,16 +230,17 @@ void __init acpi_hest_init(void) goto err; } - rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count); - if (rc) - goto err; - - rc = hest_ghes_dev_register(ghes_count); - if (!rc) { - pr_info(HEST_PFX "Table parsing has been initialized.\n"); - return; + if (!ghes_disable) { + rc = apei_hest_parse(hest_parse_ghes_count, &ghes_count); + if (rc) + goto err; + rc = hest_ghes_dev_register(ghes_count); + if (rc) + goto err; } + pr_info(HEST_PFX "Table parsing has been initialized.\n"); + return; err: hest_disable = 1; } --- a/include/acpi/apei.h +++ b/include/acpi/apei.h @@ -18,6 +18,7 @@ extern int hest_disable; extern int erst_disable; +extern int ghes_disable; #ifdef CONFIG_ACPI_APEI void __init acpi_hest_init(void); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/