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Filename Latest commit message Latest commit date
Dave Martin c88b093693 arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
Due to what looks like a typo dating back to the original addition
of FPEXC32_EL2 handling, KVM currently initialises this register to
an architecturally invalid value.

As a result, the VECITR field (RES1) in bits [10:8] is initialised
with 0, and the two reserved (RES0) bits [6:5] are initialised with
1.  (In the Common VFP Subarchitecture as specified by ARMv7-A,
these two bits were IMP DEF.  ARMv8-A removes them.)

This patch changes the reset value from 0x70 to 0x700, which
reflects the architectural constraints and is presumably what was
originally intended.

Cc: <stable@vger.kernel.org> # 4.12.x-
Cc: Christoffer Dall <christoffer.dall@arm.com>
Fixes: 62a89c4495 ("arm64: KVM: 32bit handling of coprocessor traps")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-02-22 09:59:20 +00:00
arch arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2 2019-02-22 09:59:20 +00:00
block
certs
crypto
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-21 12:52:31 +13:00
drivers clocksource/arm_arch_timer: Store physical timer IRQ number for KVM on VHE 2019-02-19 21:05:22 +00:00
firmware
fs Fixes for pstore/ram 2019-01-21 13:12:03 +13:00
include KVM: arm/arm64: Rework the timer code to use a timer_map 2019-02-19 21:05:43 +00:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-21 12:52:31 +13:00
lib
LICENSES
mm
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-21 12:52:31 +13:00
samples
scripts Bug fixes for gcc-plugins 2019-01-21 13:07:03 +13:00
security
sound
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-21 12:52:31 +13:00
usr
virt KVM: arm/arm64: Remove unused timer variable 2019-02-22 09:41:52 +00:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS KVM: arm/arm64: Update MAINTAINERS entries 2019-02-19 21:05:53 +00:00
Makefile Linux 5.0-rc3 2019-01-21 13:14:44 +13:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.