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
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arch
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drivers
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fs
include
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kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitignore -rw-r--r-- 1.2 KB
.mailmap -rw-r--r-- 6.1 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 95.5 KB
Kbuild -rw-r--r-- 2.8 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 353.7 KB
Makefile -rw-r--r-- 56.0 KB
README -rw-r--r-- 18.1 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

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