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(parent: 47faf94) | patch
xen: mask out SEP from CPUID
authorJeremy Fitzhardinge <jeremy@xensource.com>
Fri, 29 Feb 2008 17:55:43 +0000 (18:55 +0100)
committerChris Wright <chrisw@sous-sol.org>
Sat, 19 Apr 2008 01:53:20 +0000 (18:53 -0700)
commitcf0a0d639cb8feee43f455bdb31454742337225d
tree06ce136b4bf86f901d9680d2cffadbf958996e03tree | snapshot
parent47faf947315d8abeaf5ec90a906e47a24e0657ddcommit | diff
xen: mask out SEP from CPUID

upstream commit: d40e705903397445c6861a0a56c23e5b2e8f9b9a

Fix 32-on-64 pvops kernel:

we don't want userspace using syscall/sysenter, even if the hypervisor
supports it, so mask it out from CPUID.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
arch/x86/xen/enlighten.c diff | blob | history
Linux kernels and configurations used by Zygo.