From: "Jan Beulich" <jbeulich@novell.com>
To: "Jeremy Fitzhardinge" <jeremy@goop.org>
Cc: <mingo@elte.hu>, <tglx@linutronix.de>,
<linux-kernel@vger.kernel.org>, <hpa@zytor.com>
Subject: [PATCH] x86-64: fix HYPERVISOR_update_descriptor()
Date: Tue, 16 Dec 2008 11:37:28 +0000 [thread overview]
Message-ID: <4947A108.76E4.0078.0@novell.com> (raw)
Signed-off-by: Jan Beulich <jbeulich@novell.com>
---
arch/x86/include/asm/xen/hypercall.h | 2 ++
1 file changed, 2 insertions(+)
--- linux-2.6.28-rc8/arch/x86/include/asm/xen/hypercall.h 2008-12-11 14:45:37.000000000 +0100
+++ 2.6.28-rc8-x86_64-xen-update-descr/arch/x86/include/asm/xen/hypercall.h 2008-12-12 10:25:55.000000000 +0100
@@ -290,6 +290,8 @@ HYPERVISOR_get_debugreg(int reg)
static inline int
HYPERVISOR_update_descriptor(u64 ma, u64 desc)
{
+ if (sizeof(u64) == sizeof(long))
+ return _hypercall2(int, update_descriptor, ma, desc);
return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32);
}
next reply other threads:[~2008-12-16 11:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-16 11:37 Jan Beulich [this message]
2008-12-16 17:55 ` [PATCH] x86-64: fix HYPERVISOR_update_descriptor() Jeremy Fitzhardinge
-- strict thread matches above, loose matches on Subject: below --
2009-03-12 10:36 Jan Beulich
2009-03-12 10:54 ` Ingo Molnar
2009-03-12 11:25 ` Jan Beulich
2009-03-12 11:35 ` Ingo Molnar
2009-03-12 11:51 ` Jan Beulich
2009-03-12 15:02 ` H. Peter Anvin
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