Andy Lutomirski 7209a75d20 x86_64/entry/xen: Do not invoke espfix64 on Xen ... This moves the espfix64 logic into native_iret. To make this work, it gets rid of the native patch for INTERRUPT_RETURN: INTERRUPT_RETURN on native kernels is now 'jmp native_iret'. This changes the 16-bit SS behavior on Xen from OOPSing to leaking some bits of the Xen hypervisor's RSP (I think). [ hpa: this is a nonzero cost on native, but probably not enough to measure. Xen needs to fix this in their own code, probably doing something equivalent to espfix64. ] Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/7b8f1d8ef6597cb16ae004a43c56980a7de3cf94.1406129132.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org>		2014-07-28 15:25:40 -07:00
..
asm	x86_64/entry/xen: Do not invoke espfix64 on Xen	2014-07-28 15:25:40 -07:00
uapi/asm	Merge remote-tracking branch 'origin/x86/espfix' into x86/vdso	2014-05-21 17:36:33 -07:00