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8129ee1642
linux/arch
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Frank Pavlic 8129ee1642 [PATCH] s390: qdio V=V pass-through 
New feature V=V qdio pass-through.

QDIO and HiperSockets processing in z/VM V=V guest environments (as well as
V=R with z/VM running in LPAR mode) requires shadowing of all QDIO
architecture queue elements.  Especially the shadowing of SBALs and SLSBs
structures in the hypervisor, and the need to issue SIGA SYNC operations to
observe state changes, eventually causes significant CPU processing overhead
in the hypervisor.

The QDIO pass-through support for V=V guests avoids the shadowing of SBALs and
SLSBs.  This significantly reduces the hypervisor overhead for QDIO based I/O.

Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:51 -08:00
..
alpha [PATCH] Alpha: convert to generic irq framework (alpha part) 2006-01-06 08:33:40 -08:00
arm Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 2006-01-04 18:44:12 -08:00
arm26 arch/arm26/nwfpe/fpmodule.c: remove kernel 2.0 #ifdef 2006-01-03 13:42:12 +01:00
cris [PATCH] cris: kgdb: remove double_this() 2006-01-06 08:33:45 -08:00
frv [PATCH] frv: improve signal handling 2006-01-06 08:33:33 -08:00
h8300 [PATCH] sched: disable preempt in idle tasks 2005-11-09 07:56:33 -08:00
i386 [PATCH] i386: Handle HP laptop rebooting properly. 2006-01-06 08:33:39 -08:00
ia64 [IA64] Fix compile warnings in setup.c 2006-01-05 13:30:52 -08:00
m32r [PATCH] m32r: Remove unnecessary icu_data_t definitions 2006-01-06 08:33:44 -08:00
m68k [PATCH] m68k: convert thread flags to use bit fields 2005-11-13 18:14:14 -08:00
m68knommu [PATCH] m68knommu: enable_irq/disable_irq 2006-01-06 08:33:44 -08:00
mips Relax the rw_verify_area() error checking. 2006-01-04 16:20:40 -08:00
parisc [PARISC] Remove unused variable in signal.c 2005-11-17 16:43:52 -05:00
powerpc [PATCH] driver core: replace "hotplug" by "uevent" 2006-01-04 16:18:08 -08:00
ppc [PATCH] ppc32: Re-add embed_config.c to ml300/ep405 2006-01-06 08:33:31 -08:00
s390 [PATCH] s390: qdio V=V pass-through 2006-01-06 08:33:51 -08:00
sh [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sh64 [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
sparc [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
sparc64 [SPARC]: Use STABS_DEBUG and DWARF_DEBUG macros in vmlinux.lds.S 2005-12-28 13:22:54 -08:00
um [PATCH] uml: free network IRQ correctly 2006-01-06 08:33:48 -08:00
v850 [PATCH] v850: use generic hardirq code 2005-11-15 08:59:20 -08:00
x86_64 [PATCH] cpu hotplug/x86_64: disable interrupt in play_dead 2006-01-06 08:33:39 -08:00
xtensa Merge master.kernel.org:/home/rmk/linux-2.6-drvmodel 2005-11-11 09:24:26 -08:00