AcoSail/kernel_optimize_test
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Christian Borntraeger e976a2b997 s390: KVM guest: virtio device support, and kvm hypercalls 
This patch implements kvm guest kernel support for paravirtualized devices
and contains two parts:
o a basic virtio stub using virtio_ring and external interrupts and hypercalls
o full hypercall implementation in kvm_para.h

Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems
more complicated that providing an own stub. This virtio stub is similar to
the lguest one, the memory for the descriptors and the device detection is made
via additional mapped memory on top of the guest storage. We use an external
interrupt with extint code 0x2603 for host->guest notification.

The hypercall definition uses the diag instruction for issuing a hypercall. The
parameters are written in R2-R7, the hypercall number is written in R1. This is
similar to the system call ABI (svc) which can use R1 for the number and R2-R6
for the parameters.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27 12:00:51 +03:00
..
acorn/char
acpi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/juhl/trivial 2008-04-21 16:36:46 -07:00
amba
ata pata_bf54x: decrease count first. 2008-04-25 01:26:28 -04:00
atm drivers/atm: use time_before, time_before_eq, etc 2008-04-19 18:14:50 -07:00
auxdisplay
base bus_remove_device: be more careful about incomplete initialization 2008-04-22 17:40:36 -07:00
block xen: Add compatibility aliases for frontend drivers 2008-04-24 23:57:33 +02:00
bluetooth hci_usb: remove code obfuscation 2008-04-19 18:17:26 -07:00
cdrom cdrom: use kmalloced buffers instead of buffers on stack 2008-04-21 09:50:08 +02:00
char Merge branch 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6 2008-04-26 09:29:36 -07:00
clocksource
connector
cpufreq
cpuidle
crypto [CRYPTO] padlock-aes: Use generic setkey function 2008-04-21 10:19:34 +08:00
dca
dio
dma DMA engine: typo fixes 2008-04-21 22:38:45 +00:00
edac
eisa
firewire Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
firmware Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 2008-04-21 15:49:58 -07:00
gpio
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2008-04-25 12:38:14 -07:00
hwmon
i2c i2c: Fix platform driver hotplug/coldplug 2008-04-22 22:16:49 +02:00
ide ide: constify struct ide_dma_ops 2008-04-26 22:25:24 +02:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-04-25 12:24:06 -07:00
infiniband IB/ipath: Correct capitalization "IntX" -> "INTx" 2008-04-21 18:19:15 -07:00
input Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2008-04-25 12:40:57 -07:00
isdn Merge branch 'irq-cleanups-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2008-04-21 15:56:19 -07:00
leds leds: Add default-on trigger 2008-04-25 00:06:52 +01:00
lguest drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
macintosh mac-hid: fix build after lockdep annotation 2008-04-25 18:57:09 -07:00
mca
md dm: remove md argument from specific_minor 2008-04-25 13:27:02 +01:00
media V4L/DVB (7751): ir-kbd-i2c: Save a temporary memory allocation in ir_probe 2008-04-26 09:29:58 -03:00
memstick memstick: convert struct class_device to struct device 2008-04-19 19:10:29 -07:00
message SCSI: convert struct class_device to struct device 2008-04-19 19:10:33 -07:00
mfd Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-04-24 08:36:11 -07:00
misc [IA64] run drivers/misc/sgi-xp through scripts/checkpatch.pl 2008-04-22 15:08:55 -07:00
mmc mmc: sdio_ops.c should #include "sdio_ops.h" 2008-04-18 20:05:33 +02:00
mtd [MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI Flash 2008-04-25 09:14:23 +01:00
net Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-04-25 12:52:16 -07:00
nubus
of [POWERPC] drivers/of/of_i2c.c: Add MODULE_LICENSE 2008-04-24 20:58:01 +10:00
oprofile
parisc PCI: remove parisc consumer of the pci global_list 2008-04-20 21:47:01 -07:00
parport avr32: don't offer PARPORT_PC 2008-04-19 20:40:10 -04:00
pci intel-iommu.c: dma ops fix 2008-04-24 23:15:43 +02:00
pcmcia [ARM] pxa: fix 0e623941be 2008-04-21 12:52:03 +01:00
pnp pnpacpi: fix potential corruption on "pnpacpi: exceeded the max number of IRQ resources 2" 2008-04-23 12:22:13 -07:00
power
ps3
rapidio
rtc rtc: rtc-sh: Add support for periodic IRQs. 2008-04-18 09:50:01 -07:00
s390 s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
sbus
scsi ide: add struct ide_dma_ops (take 3) 2008-04-26 22:25:24 +02:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-04-25 12:52:16 -07:00
sh
sn
spi
ssb ssb: Fix all-ones boardflags 2008-04-23 21:25:35 -04:00
tc
telephony
thermal
uio UIO: hold a reference to the device's owner while the device is open 2008-04-19 19:10:18 -07:00
usb usb: don't update devnum for wusb devices 2008-04-24 21:16:59 -07:00
video xen pvfb: Para-virtual framebuffer, keyboard and pointer driver 2008-04-24 23:57:33 +02:00
virtio
w1
watchdog Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
xen xen: add balloon driver 2008-04-24 23:57:33 +02:00
zorro
Kconfig xen: add balloon driver 2008-04-24 23:57:33 +02:00
Makefile