Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933371Ab2HVXoW (ORCPT ); Wed, 22 Aug 2012 19:44:22 -0400 Received: from terminus.zytor.com ([198.137.202.10]:47552 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756716Ab2HVXoU (ORCPT ); Wed, 22 Aug 2012 19:44:20 -0400 Date: Wed, 22 Aug 2012 16:44:07 -0700 From: tip-bot for Borislav Petkov Message-ID: Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, tglx@linutronix.de, hpa@linux.intel.com, borislav.petkov@amd.com Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, hpa@linux.intel.com, borislav.petkov@amd.com In-Reply-To: <1344361461-10076-10-git-send-email-bp@amd64.org> References: <1344361461-10076-10-git-send-email-bp@amd64.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/microcode] x86, microcode: Add a refresh firmware flag to ->request_microcode_fw Git-Commit-ID: 48e30685caa8bdc4b8d4417d8ac31db59689742c X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Wed, 22 Aug 2012 16:44:13 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4572 Lines: 121 Commit-ID: 48e30685caa8bdc4b8d4417d8ac31db59689742c Gitweb: http://git.kernel.org/tip/48e30685caa8bdc4b8d4417d8ac31db59689742c Author: Borislav Petkov AuthorDate: Thu, 26 Jul 2012 15:51:00 +0200 Committer: H. Peter Anvin CommitDate: Wed, 22 Aug 2012 16:15:58 -0700 x86, microcode: Add a refresh firmware flag to ->request_microcode_fw This is done in preparation for teaching the ucode driver to either load a new ucode patches container from userspace or use an already cached version. No functionality change in this patch. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1344361461-10076-10-git-send-email-bp@amd64.org Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/microcode.h | 4 ++-- arch/x86/kernel/microcode_amd.c | 3 ++- arch/x86/kernel/microcode_core.c | 11 ++++++----- arch/x86/kernel/microcode_intel.c | 3 ++- 4 files changed, 12 insertions(+), 9 deletions(-) diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h index 8813be6..43d921b 100644 --- a/arch/x86/include/asm/microcode.h +++ b/arch/x86/include/asm/microcode.h @@ -15,8 +15,8 @@ struct microcode_ops { enum ucode_state (*request_microcode_user) (int cpu, const void __user *buf, size_t size); - enum ucode_state (*request_microcode_fw) (int cpu, - struct device *device); + enum ucode_state (*request_microcode_fw) (int cpu, struct device *, + bool refresh_fw); void (*microcode_fini_cpu) (int cpu); diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 25d34b1..94ecdaa 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -330,7 +330,8 @@ out: * * These might be larger than 2K. */ -static enum ucode_state request_microcode_amd(int cpu, struct device *device) +static enum ucode_state request_microcode_amd(int cpu, struct device *device, + bool refresh_fw) { char fw_name[36] = "amd-ucode/microcode_amd.bin"; const struct firmware *fw; diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index dcde544..9420972 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -282,7 +282,7 @@ static int reload_for_cpu(int cpu) if (!uci->valid) return err; - ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev); + ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev, true); if (ustate == UCODE_OK) apply_microcode_on_target(cpu); else @@ -377,7 +377,7 @@ static enum ucode_state microcode_resume_cpu(int cpu) return UCODE_OK; } -static enum ucode_state microcode_init_cpu(int cpu) +static enum ucode_state microcode_init_cpu(int cpu, bool refresh_fw) { enum ucode_state ustate; @@ -388,7 +388,8 @@ static enum ucode_state microcode_init_cpu(int cpu) if (system_state != SYSTEM_RUNNING) return UCODE_NFOUND; - ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev); + ustate = microcode_ops->request_microcode_fw(cpu, µcode_pdev->dev, + refresh_fw); if (ustate == UCODE_OK) { pr_debug("CPU%d updated upon init\n", cpu); @@ -405,7 +406,7 @@ static enum ucode_state microcode_update_cpu(int cpu) if (uci->valid) return microcode_resume_cpu(cpu); - return microcode_init_cpu(cpu); + return microcode_init_cpu(cpu, false); } static int mc_device_add(struct device *dev, struct subsys_interface *sif) @@ -421,7 +422,7 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif) if (err) return err; - if (microcode_init_cpu(cpu) == UCODE_ERROR) + if (microcode_init_cpu(cpu, true) == UCODE_ERROR) return -EINVAL; return err; diff --git a/arch/x86/kernel/microcode_intel.c b/arch/x86/kernel/microcode_intel.c index 0327e2b..3544aed 100644 --- a/arch/x86/kernel/microcode_intel.c +++ b/arch/x86/kernel/microcode_intel.c @@ -405,7 +405,8 @@ static int get_ucode_fw(void *to, const void *from, size_t n) return 0; } -static enum ucode_state request_microcode_fw(int cpu, struct device *device) +static enum ucode_state request_microcode_fw(int cpu, struct device *device, + bool refresh_fw) { char name[30]; struct cpuinfo_x86 *c = &cpu_data(cpu); -- 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/