linux-kernel-test/Documentation
Gabriel L. Somlo 100943c54e kvm: x86: ignore ioapic polarity
Both QEMU and KVM have already accumulated a significant number of
optimizations based on the hard-coded assumption that ioapic polarity
will always use the ActiveHigh convention, where the logical and
physical states of level-triggered irq lines always match (i.e.,
active(asserted) == high == 1, inactive == low == 0). QEMU guests
are expected to follow directions given via ACPI and configure the
ioapic with polarity 0 (ActiveHigh). However, even when misbehaving
guests (e.g. OS X <= 10.9) set the ioapic polarity to 1 (ActiveLow),
QEMU will still use the ActiveHigh signaling convention when
interfacing with KVM.

This patch modifies KVM to completely ignore ioapic polarity as set by
the guest OS, enabling misbehaving guests to work alongside those which
comply with the ActiveHigh polarity specified by QEMU's ACPI tables.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gabriel L. Somlo <somlo@cmu.edu>
[Move documentation to KVM_IRQ_LINE, add ia64. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-03-13 11:58:21 +01:00
..
ABI tty: Set correct tty name in 'active' sysfs attribute 2014-02-07 08:40:54 -08:00
accounting
acpi ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
aoe aoe: remove do-nothing NAME="%k" term from example udev rules 2013-09-11 15:59:28 -07:00
arm Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
arm64 arm64: Use 42-bit address space with 64K pages 2013-11-05 17:23:52 +00:00
auxdisplay
backlight backlight: lp855x_bl: support new LP8555 device 2013-11-13 12:09:14 +09:00
blackfin Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
block Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
blockdev zram: remove old private project comment 2014-01-30 16:56:55 -08:00
bus-devices
cdrom
cgroups Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-01-31 09:31:14 -08:00
connector connector - documentation: simplify netlink message length assignment 2013-10-02 16:03:51 -04:00
console
cpu-freq Documentation: cpufreq / boost: Update BOOST documentation 2014-01-17 02:00:45 +01:00
cpuidle cpuidle: remove cpuidle_unregister_governor() 2013-10-30 01:21:24 +01:00
cris
crypto
development-process
device-mapper dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
devicetree A collection of ARM SoC fixes for v3.14-rc1. 2014-02-15 15:01:33 -08:00
DocBook Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-01-31 09:31:14 -08:00
driver-model Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-01-22 21:21:55 -08:00
dvb [media] update Michael Krufky's email address 2014-02-04 06:34:21 -02:00
early-userspace
EDID
extcon extcon: fix switch class porting guide (Documentation) 2014-01-07 11:54:28 +09:00
fault-injection
fb Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
filesystems Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
firmware_class
fmc
frv
gpio gpiolib: return -ENOENT if no GPIO mapping exists 2013-12-12 19:33:59 +01:00
hid
hwmon Update Jean Delvare's e-mail address 2014-01-29 20:40:08 +01:00
i2c Documentation: i2c: mention ACPI method for instantiating devices 2014-02-15 19:46:34 +01:00
i2o
ia64
ide Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
infiniband
input Input: fix typos in Documentation/input/gamepad.txt 2013-12-18 08:47:43 -08:00
ioctl s390/hypfs: add interface for diagnose 0x304 2014-01-24 09:40:59 +01:00
isdn
ja_JP Documentation: ja_JP: Update broken link to tpp 2013-12-10 23:09:08 -08:00
kbuild Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes "" | make oldconfig 2013-10-08 23:51:50 +02:00
kdump
ko_KR Documentation: HOWTO: Updates on subsystem trees, patchwork, -next (vs. -mm) in ko_KR 2014-01-08 15:32:51 -08:00
laptops Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
leds Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
m68k Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
make
memory-devices
metag
mic misc: mic: Fix endianness issues. 2013-11-27 11:03:38 -08:00
mips
misc-devices Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2014-01-29 18:56:27 -08:00
mmc
mn10300
mtd mtd: nand: pxa3xx: Add documentation about the controller 2014-01-03 11:22:09 -08:00
namespaces
netlabel
networking Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
nfc
parisc
PCI Merge branch 'pci/msi' into next 2014-01-07 17:34:39 -07:00
pcmcia
power Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
powerpc
pps USB: serial: invoke dcd_change ldisc's handler. 2013-09-26 09:45:40 -07:00
prctl
pti
ptp ptp: Allow selecting trigger/event index in testptp 2014-02-04 20:26:46 -08:00
rapidio
RCU Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
s390 Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
scheduler Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
scsi Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
security ima: update IMA-templates.txt documentation 2014-01-03 07:42:59 -05:00
serial Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
sh
sound ASoC: docs: Update the Overview document 2014-01-07 17:56:32 +00:00
spi spi: Fixes for v3.14 2014-02-12 09:11:24 -08:00
sysctl Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-01-31 08:59:46 -08:00
target target: Remove TF_CIT_TMPL macro 2013-10-16 13:35:02 -07:00
thermal thermal: thermal_core: allow binding with limits on bind_params 2013-09-03 09:10:24 -04:00
timers Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
tpm
trace Documentation/trace/postprocess/trace-vmscan-postprocess.pl: fix the traceevent regex 2014-01-23 16:36:52 -08:00
usb doc: Fix typo in USB Gadget Documentation 2014-01-10 15:33:54 +01:00
vDSO
video4linux [media] sn9c102: prepare for removal by moving it to staging 2013-12-20 13:41:36 -02:00
virtual kvm: x86: ignore ioapic polarity 2014-03-13 11:58:21 +01:00
vm Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
w1 Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
watchdog
wimax
x86 Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
xtensa xtensa: remap io area defined in device tree 2014-01-15 00:25:14 +04:00
zh_CN Documentation:Update Documentation/zh_CN/arm64/memory.txt 2014-02-07 15:24:31 -08:00
.gitignore
00-INDEX Documentation/: update 00-INDEX files 2014-02-10 16:01:40 -08:00
applying-patches.txt
assoc_array.txt KEYS: Fix multiple key add into associative array 2013-12-02 11:24:18 +00:00
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes remove obsolete references to powertweak 2013-11-27 20:34:32 -08:00
circular-buffers.txt documentation: Update circular buffer for load-acquire/store-release 2013-12-03 10:08:57 -08:00
clk.txt clk: Add set_rate_and_parent() op 2014-01-16 12:00:57 -08:00
coccinelle.txt
CodingStyle
cpu-hotplug.txt Documentation/cpu-hotplug.txt: fix a typo in example code 2014-01-23 16:37:01 -08:00
cpu-load.txt
cputopology.txt doc: Documentation/cputopology.txt fix typo 2013-09-04 12:59:47 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt firewire: Enable remote DMA above 4 GB 2014-01-20 01:11:13 +01:00
dell_rbu.txt
devices.txt misc: Reserve minor for VFIO 2013-12-19 10:17:11 -07:00
digsig.txt
DMA-API-HOWTO.txt DMA-API: provide a helper to set both DMA and coherent DMA masks 2013-09-17 15:32:37 +01:00
DMA-API.txt DMA-API: provide a helper to set both DMA and coherent DMA masks 2013-09-17 15:32:37 +01:00
DMA-attributes.txt doc: Documentation/DMA-attributes.txt fix typo 2013-10-14 15:50:53 +02:00
dma-buf-sharing.txt dma-buf: Expose buffer size to userspace (v2) 2013-09-10 11:36:45 +05:30
DMA-ISA-LPC.txt
dmaengine.txt
dmatest.txt dmatest: add a 'wait' parameter 2013-11-14 11:04:40 -08:00
dontdiff
dynamic-debug-howto.txt dynamic-debug-howto.txt: update since new wildcard support 2014-01-23 16:36:55 -08:00
edac.txt
efi-stub.txt doc: Fix trivial spelling mistake in efi-stub.txt 2013-12-19 15:09:14 +01:00
eisa.txt
email-clients.txt doc: fix some typos 2013-12-02 14:48:28 +01:00
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt gcov: compile specific gcov implementation based on gcc version 2013-11-13 12:09:34 +09:00
highuid.txt
HOWTO Documentation: HOWTO: Update broken links to tpp 2013-12-10 23:09:08 -08:00
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt
io_ordering.txt
io-mapping.txt doc: fix some typos 2013-12-02 14:48:28 +01:00
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt doc: fix some typos 2013-12-02 14:48:28 +01:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt Documentation/kernel-parameters.txt: fix memmap= language 2014-02-06 13:48:51 -08:00
kernel-per-CPU-kthreads.txt kthread: Add pointer to vmstat-avoidance patch 2013-09-25 06:49:46 -07:00
kmemcheck.txt
kmemleak.txt
kobject.txt kobject: remove kset from sysfs immediately in kset_unregister() 2013-12-07 21:20:11 -08:00
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt lockstat: Report avg wait and hold times 2013-10-09 08:19:08 +02:00
lockup-watchdogs.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
md.txt doc: fix some typos in documentations 2013-12-02 14:45:19 +01:00
media-framework.txt
memory-barriers.txt locking/doc: Rename LOCK/UNLOCK to ACQUIRE/RELEASE 2014-01-12 10:37:13 +01:00
memory-hotplug.txt Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-09-06 09:36:28 -07:00
module-signing.txt Add Documentation/module-signing.txt file 2013-12-13 15:59:11 +00:00
mono.txt
mutex-design.txt locking/doc: Update references to kernel/mutex.c 2013-11-11 12:41:33 +01:00
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt drivers: phy: Add support for optional phys 2014-02-05 05:48:43 +00:00
pi-futex.txt
pinctrl.txt pinctrl: Fix some typos and grammar issues in the documentation 2014-01-15 13:59:50 +01:00
pnp.txt
preempt-locking.txt
printk-formats.txt vsprintf: add %pad extension for dma_addr_t use 2014-01-23 16:36:56 -08:00
pwm.txt Documentation/pwm: Fix trivial typos 2013-10-24 10:51:33 +02:00
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt doc: fix some typos in documentations 2013-12-02 14:45:19 +01:00
robust-futex-ABI.txt Documentation/robust-futex-API: Count properly to 4 2013-11-30 14:08:28 +01:00
robust-futexes.txt
rpmsg.txt
rt-mutex-design.txt doc: fix some typos in documentations 2013-12-02 14:45:19 +01:00
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt doc: fix some typos in documentations 2013-12-02 14:45:19 +01:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches
svga.txt
sysfs-rules.txt
sysrq.txt sysrq: Allow magic SysRq key functions to be disabled through Kconfig 2013-10-16 13:01:44 -07:00
this_cpu_ops.txt
unaligned-memory-access.txt ether_addr_equal: Optimize implementation, remove unused compare_ether_addr 2013-12-06 16:37:43 -05:00
unicode.txt
unshare.txt
vfio.txt vfio: fix documentation 2013-09-05 16:36:21 -06:00
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt VME: Rename vme_slot_get to avoid confusion with reference counting 2013-12-03 11:15:58 -08:00
volatile-considered-harmful.txt
workqueue.txt
ww-mutex-design.txt
xz.txt
zorro.txt zorro/UAPI: Disintegrate include/linux/zorro*.h 2013-11-26 11:09:08 +01:00