git.baikalelectronics.ru Git - kernel.git/commit

]> git.baikalelectronics.ru Git - kernel.git/commit

author	Jeremy Fitzhardinge <jeremy@goop.org>
	Mon, 17 Mar 2008 23:37:17 +0000 (16:37 -0700)
committer	Ingo Molnar <mingo@elte.hu>
	Thu, 24 Apr 2008 21:57:31 +0000 (23:57 +0200)
commit	24edb7d1934b4842c3a0c24cd062de1313790d3b
tree	3eaf386316be1f499d92fae213493ec3d6b5b576	tree \| snapshot
parent	ba339c89905353b321c837b723bf5d14e3937a51	commit \| diff

xen: support sysenter/sysexit if hypervisor does

64-bit Xen supports sysenter for 32-bit guests, so support its
use. (sysenter is faster than int $0x80 in 32-on-64.)

sysexit is still not supported, so we fake it up using iret.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Linux Kernel Source Tree.

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arch/x86/kernel/entry_32.S		diff \| blob \| history
arch/x86/xen/enlighten.c		diff \| blob \| history
arch/x86/xen/setup.c		diff \| blob \| history
arch/x86/xen/smp.c		diff \| blob \| history
arch/x86/xen/xen-asm.S		diff \| blob \| history
arch/x86/xen/xen-ops.h		diff \| blob \| history