From: Magnus Damm <magnus@valinux.co.jp>
To: xen-devel@lists.xensource.com
Cc: Magnus Damm <magnus@valinux.co.jp>, magnus.damm@gmail.com
Subject: [PATCH] hvm: disable on smp
Date: Fri, 29 Sep 2006 15:44:31 +0900 [thread overview]
Message-ID: <20060929064431.24864.50465.sendpatchset@localhost> (raw)
In-Reply-To: <20060929064425.24864.5149.sendpatchset@localhost>
hvm: disable hvm on smp
With Intel VT, VMXOFF needs to be executed before halting the CPU. Without
this fix Xen or Linux is unable to start up the CPU after a kexec reboot.
Tested using x86_32 on a Pentium D 930.
Signed-Off-By: Magnus Damm <magnus@valinux.co.jp>
--- 0001/xen/arch/x86/smp.c
+++ work/xen/arch/x86/smp.c 2006-09-29 14:47:34.000000000 +0900
@@ -21,6 +21,7 @@
#include <asm/smpboot.h>
#include <asm/hardirq.h>
#include <asm/ipi.h>
+#include <asm/hvm/hvm.h>
#include <mach_apic.h>
/*
@@ -306,6 +307,7 @@ static void stop_this_cpu (void *dummy)
local_irq_disable();
disable_local_APIC();
+ hvm_disable();
for ( ; ; )
__asm__ __volatile__ ( "hlt" );
prev parent reply other threads:[~2006-09-29 6:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-29 6:44 [PATCH] hvm: clear vmxe if vmxoff Magnus Damm
2006-09-29 6:44 ` Magnus Damm [this message]
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