linux-kernel - [PATCH] x86: setup_arch 32bit move kvm_guest

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Message-Id: <200806231955.05921.yhlu.kernel@gmail.com>
Date:	Mon, 23 Jun 2008 19:55:05 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] x86: setup_arch 32bit move kvm_guest_init later


Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

---
 arch/x86/kernel/setup_32.c |   32 ++++++++++++++++++--------------
 arch/x86/kernel/setup_64.c |   14 +++++++-------
 2 files changed, 25 insertions(+), 21 deletions(-)

Index: linux-2.6/arch/x86/kernel/setup_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_32.c
+++ linux-2.6/arch/x86/kernel/setup_32.c
@@ -488,8 +488,6 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	vmi_init();
 #endif
-	kvm_guest_init();
-
 	/*
 	 * NOTE: before this point _nobody_ is allowed to allocate
 	 * any memory using the bootmem allocator.  Although the
@@ -517,9 +515,15 @@ void __init setup_arch(char **cmdline_p)
 
 	early_quirks();
 
+	/*
+	 * Read APIC and some other early information from ACPI tables.
+	 */
 	acpi_boot_init();
 
 #if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
+	/*
+	 * get boot-time SMP configuration:
+	 */
 	if (smp_found_config)
 		get_smp_config();
 #endif
@@ -529,6 +533,7 @@ void __init setup_arch(char **cmdline_p)
 			"CONFIG_X86_PC cannot handle it.\nUse "
 			"CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
 #endif
+	kvm_guest_init();
 
 	e820_reserve_resources();
 	e820_mark_nosave_regions(max_low_pfn);
--
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