linux-kernel - [PATCH 3/3] Vmi native fix

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Message-Id: <200701050435.l054ZUWn005547@zach-dev.vmware.com>
Date:	Thu, 4 Jan 2007 20:35:30 -0800
From:	Zachary Amsden <zach@...are.com>
To:	Andrew Morton <akpm@...l.org>,
	Rusty Russell <rusty@...tcorp.com.au>, Andi Kleen <ak@....de>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Virtualization Mailing List <virtualization@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Eli Collins <ecollins@...are.com>,
	Zachary Amsden <zach@...are.com>
Subject: [PATCH 3/3] Vmi native fix

In paravirt builds with VMI compiled in, vmi_bringup is called
unconditionally, not via a paravirt-ops table (as no other hypervisor
uses the APIC startup technique).  Make the calls to setup VMI state
conditional on the presence of the VMI ROM.

Signed-off-by: Zachary Amsden <zach@...are.com>

diff -r 1915e2685a3c arch/i386/kernel/vmi.c
--- a/arch/i386/kernel/vmi.c	Thu Jan 04 15:56:40 2007 -0800
+++ b/arch/i386/kernel/vmi.c	Thu Jan 04 15:57:38 2007 -0800
@@ -645,7 +645,8 @@ void vmi_bringup(void)
 void vmi_bringup(void)
 {
  	/* We must establish the lowmem mapping for MMU ops to work */
-	vmi_ops.set_linear_mapping(0, __PAGE_OFFSET, max_low_pfn, 0);
+	if (vmi_rom) 
+		vmi_ops.set_linear_mapping(0, __PAGE_OFFSET, max_low_pfn, 0);
 }
 
 /*
-
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