From: "Fenghua Yu" <fenghua.yu@intel.com>
To: "H Peter Anvin" <hpa@zytor.com>, "Ingo Molnar" <mingo@elte.hu>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Asit K Mallick" <asit.k.mallick@intel.com>,
"Tigran Aivazian" <tigran@aivazian.fsnet.co.uk>,
"Yinghai Lu" <yinghai@kernel.org>,
"Andreas Herrmann" <andreas.herrmann3@amd.com>,
"Borislav Petkov" <borislav.petkov@amd.com>,
"linux-kernel" <linux-kernel@vger.kernel.org>,
"x86" <x86@kernel.org>
Cc: "Fenghua Yu" <fenghua.yu@intel.com>
Subject: [PATCH v4 08/11] x86/head_32.S: Early update ucode in 32-bit
Date: Thu, 20 Dec 2012 11:48:10 -0800 [thread overview]
Message-ID: <1356032893-2730-9-git-send-email-fenghua.yu@intel.com> (raw)
In-Reply-To: <1356032893-2730-1-git-send-email-fenghua.yu@intel.com>
From: Fenghua Yu <fenghua.yu@intel.com>
This updates ucode in 32-bit kernel. At this point, there is no paging and no
virtual address yet.
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
---
arch/x86/kernel/head_32.S | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 8e7f655..fdc11f6 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -144,6 +144,12 @@ ENTRY(startup_32)
movl %eax, pa(olpc_ofw_pgd)
#endif
+#ifdef CONFIG_MICROCODE_EARLY
+ /* Early load ucode on BSP. */
+ movl $pa(boot_params), %eax
+ call load_ucode_bsp
+#endif
+
/*
* Initialize page tables. This creates a PDE and a set of page
* tables, which are located immediately beyond __brk_base. The variable
@@ -299,6 +305,12 @@ ENTRY(startup_32_smp)
movl %eax,%ss
leal -__PAGE_OFFSET(%ecx),%esp
+#ifdef CONFIG_MICROCODE_EARLY
+ /* Early load ucode on AP. */
+ call load_ucode_ap
+#endif
+
+
default_entry:
/*
* New page tables may be in 4Mbyte page mode and may
--
1.8.0.1
next prev parent reply other threads:[~2012-12-21 2:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-20 19:48 [PATCH v4 00/11] x86/microcode: Early load microcode Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 01/11] Documentation/x86: " Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 02/11] x86/microcode_intel.h: Define functions and macros for early loading ucode Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 03/11] x86/common.c: Make have_cpuid_p() a global function and load ucode or show ucode loading info on AP Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 04/11] x86/microcode_core_early.c: Define interfaces for early loading ucode Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 05/11] x86/microcode_intel_lib.c: Early update ucode on Intel's CPU Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 06/11] x86/tlbflush.h: Define __native_flush_tlb_global_irq_disabled() Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 07/11] x86/microcode_intel_early.c: Early update ucode on Intel's CPU Fenghua Yu
2012-12-20 19:48 ` Fenghua Yu [this message]
2012-12-20 19:48 ` [PATCH v4 09/11] x86/head64.c: Early update ucode in 64-bit Fenghua Yu
2012-12-21 4:09 ` Yinghai Lu
2012-12-21 4:44 ` Yu, Fenghua
2012-12-21 5:07 ` Yu, Fenghua
[not found] ` <CAE9FiQVHuNkT3BLUW3hJf6mWbNq+kWmohwSNJMxxO1sYvyCxOQ@mail.gmail.com>
2012-12-21 5:48 ` H. Peter Anvin
2012-12-20 19:48 ` [PATCH v4 10/11] x86/mm/init.c: Copy ucode from initrd image to kernel memory Fenghua Yu
2012-12-20 19:48 ` [PATCH v4 11/11] x86/Kconfig: Configurations to enable/disable the feature Fenghua Yu
2012-12-21 9:04 ` [PATCH v4 00/11] x86/microcode: Early load microcode Michael Tokarev
2012-12-21 15:09 ` Yu, Fenghua
2012-12-21 15:14 ` Borislav Petkov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1356032893-2730-9-git-send-email-fenghua.yu@intel.com \
--to=fenghua.yu@intel.com \
--cc=andreas.herrmann3@amd.com \
--cc=asit.k.mallick@intel.com \
--cc=borislav.petkov@amd.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
--cc=tigran@aivazian.fsnet.co.uk \
--cc=x86@kernel.org \
--cc=yinghai@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®