https://github.com/torvalds/linux
Revision 6f2d9d99213514360034c6d52d2c3919290b3504 authored by Jan Beulich on 08 July 2016, 12:15:07 UTC, committed by David Vrabel on 08 July 2016, 13:53:13 UTC
As of Xen 4.7 PV CPUID doesn't expose either of CPUID[1].ECX[7] and
CPUID[0x80000007].EDX[7] anymore, causing the driver to fail to load on
both Intel and AMD systems. Doing any kind of hardware capability
checks in the driver as a prerequisite was wrong anyway: With the
hypervisor being in charge, all such checking should be done by it. If
ACPI data gets uploaded despite some missing capability, the hypervisor
is free to ignore part or all of that data.

Ditch the entire check_prereq() function, and do the only valid check
(xen_initial_domain()) in the caller in its place.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
1 parent e5a7947
History
Tip revision: 6f2d9d99213514360034c6d52d2c3919290b3504 authored by Jan Beulich on 08 July 2016, 12:15:07 UTC
xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7
Tip revision: 6f2d9d9
File Mode Size
ABI
DocBook
EDID
PCI
RCU
accounting
acpi
aoe
arm
arm64
auxdisplay
backlight
blackfin
block
blockdev
bus-devices
cdrom
cgroup-v1
cma
connector
console
cpu-freq
cpuidle
cris
crypto
development-process
device-mapper
devicetree
dmaengine
driver-model
dvb
early-userspace
extcon
fault-injection
fb
features
filesystems
firmware_class
fmc
fpga
frv
gpio
hid
hwmon
i2c
ia64
ide
iio
infiniband
input
ioctl
isdn
ja_JP
kbuild
kdump
ko_KR
laptops
leds
livepatch
locking
m68k
memory-devices
metag
mic
mips
misc-devices
mmc
mn10300
mtd
namespaces
netlabel
networking
nfc
nios2
nvdimm
nvmem
parisc
pcmcia
phy
platform
power
powerpc
pps
prctl
pti
ptp
rapidio
s390
scheduler
scsi
security
serial
sh
sound
spi
sysctl
target
thermal
timers
tpm
trace
usb
vDSO
video4linux
virtual
vm
w1
watchdog
wimax
x86
xtensa
zh_CN
00-INDEX -rw-r--r-- 16.8 KB
BUG-HUNTING -rw-r--r-- 8.1 KB
Changes -rw-r--r-- 11.6 KB
CodeOfConflict -rw-r--r-- 1.4 KB
CodingStyle -rw-r--r-- 34.0 KB
DMA-API-HOWTO.txt -rw-r--r-- 34.7 KB
DMA-API.txt -rw-r--r-- 27.5 KB
DMA-ISA-LPC.txt -rw-r--r-- 5.2 KB
DMA-attributes.txt -rw-r--r-- 5.7 KB
HOWTO -rw-r--r-- 26.8 KB
IPMI.txt -rw-r--r-- 29.4 KB
IRQ-affinity.txt -rw-r--r-- 2.5 KB
IRQ-domain.txt -rw-r--r-- 10.6 KB
IRQ.txt -rw-r--r-- 962 bytes
Intel-IOMMU.txt -rw-r--r-- 3.8 KB
Makefile -rw-r--r-- 152 bytes
ManagementStyle -rw-r--r-- 12.9 KB
SAK.txt -rw-r--r-- 2.8 KB
SM501.txt -rw-r--r-- 2.8 KB
SecurityBugs -rw-r--r-- 1.8 KB
SubmitChecklist -rw-r--r-- 4.4 KB
SubmittingDrivers -rw-r--r-- 6.2 KB
SubmittingPatches -rw-r--r-- 35.7 KB
VGA-softcursor.txt -rw-r--r-- 2.0 KB
adding-syscalls.txt -rw-r--r-- 23.8 KB
applying-patches.txt -rw-r--r-- 19.5 KB
assoc_array.txt -rw-r--r-- 20.0 KB
atomic_ops.txt -rw-r--r-- 22.0 KB
bad_memory.txt -rw-r--r-- 1.1 KB
basic_profiling.txt -rw-r--r-- 1.7 KB
bcache.txt -rw-r--r-- 16.4 KB
binfmt_misc.txt -rw-r--r-- 6.5 KB
braille-console.txt -rw-r--r-- 1.4 KB
bt8xxgpio.txt -rw-r--r-- 4.3 KB
btmrvl.txt -rw-r--r-- 2.9 KB
bus-virt-phys-mapping.txt -rw-r--r-- 7.9 KB
cachetlb.txt -rw-r--r-- 17.1 KB
cgroup-v2.txt -rw-r--r-- 56.7 KB
circular-buffers.txt -rw-r--r-- 8.4 KB
clk.txt -rw-r--r-- 10.3 KB
coccinelle.txt -rw-r--r-- 9.0 KB
cpu-hotplug.txt -rw-r--r-- 16.8 KB
cpu-load.txt -rw-r--r-- 3.0 KB
cputopology.txt -rw-r--r-- 4.5 KB
crc32.txt -rw-r--r-- 8.5 KB
dcdbas.txt -rw-r--r-- 3.6 KB
debugging-modules.txt -rw-r--r-- 954 bytes
debugging-via-ohci1394.txt -rw-r--r-- 7.4 KB
dell_rbu.txt -rw-r--r-- 4.9 KB
devices.txt -rw-r--r-- 115.1 KB
digsig.txt -rw-r--r-- 2.8 KB
dma-buf-sharing.txt -rw-r--r-- 22.0 KB
dontdiff -rw-r--r-- 2.5 KB
dynamic-debug-howto.txt -rw-r--r-- 12.6 KB
edac.txt -rw-r--r-- 24.7 KB
efi-stub.txt -rw-r--r-- 3.2 KB
eisa.txt -rw-r--r-- 7.1 KB
email-clients.txt -rw-r--r-- 10.9 KB
flexible-arrays.txt -rw-r--r-- 5.5 KB
futex-requeue-pi.txt -rw-r--r-- 5.0 KB
gcov.txt -rw-r--r-- 7.6 KB
gdb-kernel-debugging.txt -rw-r--r-- 6.6 KB
highuid.txt -rw-r--r-- 2.4 KB
hsi.txt -rw-r--r-- 2.9 KB
hw_random.txt -rw-r--r-- 3.5 KB
hwspinlock.txt -rw-r--r-- 12.7 KB
init.txt -rw-r--r-- 2.5 KB
initrd.txt -rw-r--r-- 14.1 KB
intel_txt.txt -rw-r--r-- 10.2 KB
io-mapping.txt -rw-r--r-- 3.2 KB
io_ordering.txt -rw-r--r-- 1.9 KB
iostats.txt -rw-r--r-- 8.0 KB
irqflags-tracing.txt -rw-r--r-- 2.3 KB
isa.txt -rw-r--r-- 5.2 KB
isapnp.txt -rw-r--r-- 433 bytes
java.txt -rw-r--r-- 10.9 KB
kasan.txt -rw-r--r-- 8.1 KB
kcov.txt -rw-r--r-- 3.4 KB
kernel-doc-nano-HOWTO.txt -rw-r--r-- 11.7 KB
kernel-docs.txt -rw-r--r-- 33.2 KB
kernel-parameters.txt -rw-r--r-- 155.5 KB
kernel-per-CPU-kthreads.txt -rw-r--r-- 13.2 KB
kmemcheck.txt -rw-r--r-- 29.9 KB
kmemleak.txt -rw-r--r-- 8.5 KB
kobject.txt -rw-r--r-- 18.0 KB
kprobes.txt -rw-r--r-- 30.3 KB
kref.txt -rw-r--r-- 8.4 KB
kselftest.txt -rw-r--r-- 2.4 KB
ldm.txt -rw-r--r-- 3.8 KB
local_ops.txt -rw-r--r-- 6.5 KB
lockup-watchdogs.txt -rw-r--r-- 4.1 KB
logo.gif -rw-r--r-- 16.0 KB
logo.txt -rw-r--r-- 563 bytes
lzo.txt -rw-r--r-- 7.8 KB
magic-number.txt -rw-r--r-- 8.7 KB
mailbox.txt -rw-r--r-- 4.1 KB
md-cluster.txt -rw-r--r-- 12.4 KB
md.txt -rw-r--r-- 25.3 KB
memory-barriers.txt -rw-r--r-- 114.0 KB
memory-hotplug.txt -rw-r--r-- 18.0 KB
men-chameleon-bus.txt -rw-r--r-- 6.1 KB
module-signing.txt -rw-r--r-- 10.3 KB
mono.txt -rw-r--r-- 2.5 KB
nommu-mmap.txt -rw-r--r-- 12.7 KB
ntb.txt -rw-r--r-- 6.3 KB
numastat.txt -rw-r--r-- 836 bytes
oops-tracing.txt -rw-r--r-- 12.8 KB
padata.txt -rw-r--r-- 7.3 KB
parport-lowlevel.txt -rw-r--r-- 32.2 KB
parport.txt -rw-r--r-- 8.8 KB
percpu-rw-semaphore.txt -rw-r--r-- 1.1 KB
phy.txt -rw-r--r-- 7.5 KB
pi-futex.txt -rw-r--r-- 5.7 KB
pinctrl.txt -rw-r--r-- 50.4 KB
pnp.txt -rw-r--r-- 6.8 KB
preempt-locking.txt -rw-r--r-- 5.2 KB
printk-formats.txt -rw-r--r-- 10.3 KB
pwm.txt -rw-r--r-- 6.1 KB
ramoops.txt -rw-r--r-- 5.2 KB
rbtree.txt -rw-r--r-- 13.3 KB
remoteproc.txt -rw-r--r-- 12.7 KB
rfkill.txt -rw-r--r-- 5.0 KB
robust-futex-ABI.txt -rw-r--r-- 8.7 KB
robust-futexes.txt -rw-r--r-- 9.4 KB
rpmsg.txt -rw-r--r-- 13.3 KB
rtc.txt -rw-r--r-- 10.3 KB
serial-console.txt -rw-r--r-- 4.0 KB
sgi-ioc4.txt -rw-r--r-- 2.0 KB
smsc_ece1099.txt -rw-r--r-- 2.4 KB
sparse.txt -rw-r--r-- 3.8 KB
stable_api_nonsense.txt -rw-r--r-- 9.2 KB
stable_kernel_rules.txt -rw-r--r-- 6.0 KB
static-keys.txt -rw-r--r-- 11.5 KB
svga.txt -rw-r--r-- 14.1 KB
sync_file.txt -rw-r--r-- 2.6 KB
sysfs-rules.txt -rw-r--r-- 9.0 KB
sysrq.txt -rw-r--r-- 11.8 KB
this_cpu_ops.txt -rw-r--r-- 11.1 KB
ubsan.txt -rw-r--r-- 3.1 KB
unaligned-memory-access.txt -rw-r--r-- 10.4 KB
unicode.txt -rw-r--r-- 6.5 KB
unshare.txt -rw-r--r-- 13.1 KB
vfio.txt -rw-r--r-- 21.3 KB
vgaarbiter.txt -rw-r--r-- 8.1 KB
video-output.txt -rw-r--r-- 1.1 KB
vme_api.txt -rw-r--r-- 13.4 KB
volatile-considered-harmful.txt -rw-r--r-- 5.6 KB
workqueue.txt -rw-r--r-- 14.7 KB
xillybus.txt -rw-r--r-- 17.7 KB
xz.txt -rw-r--r-- 5.7 KB
zorro.txt -rw-r--r-- 2.9 KB

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