linux.git - dakr's fork of kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

Age	Commit message (Collapse)	Author
2017-08-24	x86/paravirt/xen: Remove xen_patch()	Juergen Gross
	Xen's paravirt patch function xen_patch() does some special casing for irq_ops functions to apply relocations when those functions can be patched inline instead of calls. Unfortunately none of the special case function replacements is small enough to be patched inline, so the special case never applies. As xen_patch() will call paravirt_patch_default() in all cases it can be just dropped. xen-asm.h doesn't seem necessary without xen_patch() as the only thing left in it would be the definition of XEN_EFLAGS_NMI used only once. So move that definition and remove xen-asm.h. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: boris.ostrovsky@oracle.com Cc: lguest@lists.ozlabs.org Cc: rusty@rustcorp.com.au Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20170816173157.8633-2-jgross@suse.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2009-02-04	xen: make direct versions of irq_enable/disable/save/restore to common code	Jeremy Fitzhardinge
	Now that x86-64 has directly accessible percpu variables, it can also implement the direct versions of these operations, which operate on a vcpu_info structure directly embedded in the percpu area. In fact, the 64-bit versions are more or less identical, and so can be shared. The only two differences are: 1. xen_restore_fl_direct takes its argument in eax on 32-bit, and rdi on 64-bit. Unfortunately it isn't possible to directly refer to the 2nd lsb of rdi directly (as you can with %ah), so the code isn't quite as dense. 2. check_events needs to variants to save different registers. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>