The patch is big, but all it really does is replacing
dinfo->bdrv
by
blk_bs(blk_by_legacy_dinfo(dinfo))
The replacement is repetitive, but the conversion of device models to
BlockBackend is imminent, and will shorten it to just
blk_legacy_dinfo(dinfo).
Line wrapping muddies the waters a bit. I also omit tests whether
dinfo->bdrv is null, because it never is.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- Build: fixing block/iscsi.so and ranlib warnings on Mac OS X
- Migration fixes for x86
- The odd KVM patch.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
- Memory: improve error reporting and avoid crashes on hotplug
- Build: fixing block/iscsi.so and ranlib warnings on Mac OS X
- Migration fixes for x86
- The odd KVM patch.
# gpg: Signature made Thu 11 Sep 2014 11:21:10 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/bonzini/tags/for-upstream: (21 commits)
gdbstub: init mon_chr through qemu_chr_alloc
pckbd: adding new fields to vmstate
mc146818rtc: add missed field to vmstate
piix: do not set irq while loading vmstate
serial: fixing vmstate for save/restore
parallel: adding vmstate for save/restore
fdc: adding vmstate for save/restore
cpu: init vmstate for ticks and clock offset
apic_common: vapic_paddr synchronization fix
vl: use QLIST_FOREACH_SAFE to visit change state handlers
exec: add parameter errp to gethugepagesize
exec: report error when memory < hpagesize
hostmem-ram: don't exit qemu if size of memory-backend-ram is way too big
memory: add parameter errp to memory_region_init_rom_device
memory: add parameter errp to memory_region_init_ram
exec: add parameter errp to qemu_ram_alloc and qemu_ram_alloc_from_ptr
rules.mak: Fix DSO build by pulling in archive symbols
util: Don't link host-utils.o if it's empty
util: Move general qemu_getauxval to util/getauxval.c
trace: Only link generated-tracers.o with "simple" backend
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for loading DTB images when booting ELF images using
-kernel. If there are no conflicts with the placement of the ELF
segments, the DTB image is loaded at the base of RAM.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-5-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we are running the 'virt' machine, we may have a device tree blob but no
kernel to supply it to if no -kernel option was passed. In that case, copy it
to the base of RAM where it can be picked up by a bootloader.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-4-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add an address limit input parameter to load_dtb() so that we can
tell load_dtb() how much memory the dtb is allowed to consume. If
the dtb doesn't fit, return 0, otherwise return the actual size of
the loaded dtb.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-3-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In order to make the device tree blob (DTB) available in memory not only at
first boot, but also after system reset, use rom_blob_add_fixed() to install
it into memory.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1410453915-9344-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The pl011 and pl031 devices both use level triggered interrupts,
but the device tree we construct was incorrectly telling the
kernel to configure the GIC to treat them as edge triggered.
This meant that output from the pl011 would hang after a while.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1410274423-9461-1-git-send-email-peter.maydell@linaro.org
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Cc: qemu-stable@nongnu.org
Add two flash devices to the virt board, so that it can be used for
running guests which want a bootrom image such as UEFI. We provide
two flash devices to make it more convenient to provide both a
read-only UEFI image and a read-write place to store guest-set
UEFI config variables. The '-bios' command line option is set up
to provide an image for the first of the two flash devices.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1409930126-28449-2-git-send-email-ard.biesheuvel@linaro.org
Add a property "linux,stdout-path" to the /chosen DT node and make
it point to the emulated UART. This allows users such as the Linux
kernel to produce console output without the need to pass console=
or earlycon=pl011,0x... command line arguments.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Message-id: 1409317439-29349-1-git-send-email-ard.biesheuvel@linaro.org
Reviewed-by: Rob Herring <rob.herring@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add parameter errp to memory_region_init_ram and update all call sites
to pass in &error_abort.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
I'm running on a system with 8 cpus and it would be nice to have qemu
support all of them. The attached patch does that and has been tested.
That said, I'm not sure if 8 is enough or if we want to bump this even higher
now before systems with many more cpus come along. 255 anyone?
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Joel Schopp <joel.schopp@amd.com>
Message-id: 20140819213304.19537.2834.stgit@joelaarch64.amd.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
It's a MemoryRegion and not an AddressSpace. But since it's single use,
just inline the get_system_memory() call to the only usage to remove it.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: d6914047e10b956514cfaa5f391ef56c7d851b34.1408347860.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This argument is a MemoryRegion and not an AddressSpace.
"Address space" means something quite different to "memory region"
in QEMU parlance so rename the variable to reduce confusion.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: f666cf7f2318d9b461b1e320a45bf0d82da9b7dd.1408347860.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On aarch64 it is the bootloader's job to uncompress the kernel. UEFI
and u-boot bootloaders do this automatically when the kernel is
gzip-compressed.
However the qemu -kernel option does not do this. The following
command does not work:
qemu-system-aarch64 [...] -kernel /boot/vmlinuz
because it tries to execute the gzip-compressed data.
This commit lets gzip-compressed kernels be uncompressed
transparently.
Currently this is only done when emulating aarch64.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1407831259-2115-3-git-send-email-rjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The current code supplies the PSCI v0.1 function IDs in the DT even when
KVM uses PSCI v0.2.
This will break guest kernels that only support PSCI v0.1 as they will
use the IDs provided in the DT. Guest kernels with PSCI v0.2 support
are not affected by this patch, because they ignore the function IDs in
the device tree and rely on the architecture definition.
Define QEMU versions of the constants and check that they correspond to
the Linux defines on Linux build hosts. After this patch, both guest
kernels with PSCI v0.1 support and guest kernels with PSCI v0.2 should
work.
Tested on TC2 for 32-bit and APM Mustang for 64-bit (aarch64 guest
only). Both cases tested with 3.14 and linus/master and verified I
could bring up 2 cpus with both guest kernels. Also tested 32-bit with
a 3.14 host kernel with only PSCI v0.1 and both guests booted here as
well.
Cc: qemu-stable@nongnu.org
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The function IDs for PSCI v0.1 are exported by KVM and defined as
KVM_PSCI_FN_<something>. To build using these defines in non-KVM code,
QEMU defines these IDs locally and check their correctness against the
KVM headers when those are available.
However, the naming scheme used for QEMU (almost) clashes with the PSCI
v0.2 definitions from Linux so to avoid unfortunate naming when we
introduce local PSCI v0.2 defines, rename the current local defines with
QEMU_ prependend and clearly identify the PSCI version as v0.1 in the
defines.
Cc: qemu-stable@nongnu.org
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add some spacing and zeros to make it easier to read and
modify the map. This patch has no functional changes. The
review looks ugly, but it's actually pretty easy to confirm
all the addresses are as they should be - thanks to the new
formatting ;-)
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The code in do_cpu_reset() correctly handled AArch64 CPUs
when running Linux kernels, but was missing code in the
branch of the if() that deals with loading ELF files.
Correctly jump to the ELF entry point on reset rather than
leaving the reset PC at zero.
Reported-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Christopher Covington <cov@codeaurora.org>
Cc: qemu-stable@nongnu.org
pl031's base address should be 0x9010000, not 0x90010000, otherwise
it sits in ram when configuring a guest with greater than 1G.
Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make the vexpress-a9 board alias the first NOR flash region at
address zero, like vexpress-a15. This makes "-bios" actually usable
on this board.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1404310070-3561-1-git-send-email-peter.maydell@linaro.org
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Replace qemu_allocate_irqs(foo, bar, 1)[0]
with qemu_allocate_irq(foo, bar, 0).
This avoids leaking the dereferenced qemu_irq *.
Cc: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
[PC Changes:
* Applied change to instance in sh4/sh7750.c
]
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Kirill Batuzov <batuzovk@ispras.ru>
[AF: Fix IRQ index in sh4/sh7750.c]
Cc: qemu-stable@nongnu.org
Signed-off-by: Andreas Färber <afaerber@suse.de>
The pxa2xx-gpio device has a VMStateDescription, but it was accidentally
never actually registered, and it wasn't quite correct. Remove the
'lines' field (this is a device property, not mutable state), add the
missing 'prev_level' field, and set dc->vmsd so it actually gets used.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The PXA2xx GPIO GPSR and GPCR registers are write-only, with reads being
undefined behaviour. Instead of having GPCR return 31337 and GPSR return
the value last written, make both log the guest error and return 0.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The VMStateDescription structs for the GPIO and PPC devices were
accidentally never wired up. Add missing state fields and register
them via dc->vmsd.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The StrongARM GPIO GPSR and GPCR registers are write-only, with reads being
undefined behaviour. Instead of having GPCR return 31337 and GPSR return
the value last written, make both log the guest error and return 0.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
UEFI mandates that the platform must include an RTC, so provide
one in 'virt', using the PL031. This is also useful for directly
booting Linux kernels which would otherwise have to run ntpdate.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
If we have PSCI v0.2 emulation available for KVM ARM/ARM64 or TCG then
we need to provide PSCI v0.2 compatible string via generated DTB.
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Anup Patel <anup.patel@linaro.org>
Reviewed-by: Rob Herring <rob.herring@linaro.org>
Message-id: 1402901605-24551-9-git-send-email-pranavkumar@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Detect attempts by the user to specify the contents of the first flash
device via both -bios and -drive if=pflash... simultaneously and
print a helpful error message.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1402419834-25982-1-git-send-email-peter.maydell@linaro.org
The Windows headers provided by MinGW define MOD_SHIFT. Avoid
it by using SPITZ_MOD_* for our constants here.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Right now to run firmware inside the QEMU VExpress model requires
padding out the firmware image to the size of the virtual flash and
passing it in via the -pflash argument. If the firmware image is passed
without padding, then QEMU will fail. Also, when passed as a -pflash
argument, QEMU treats the file as persistent storage and will modify the
file.
The -bios flag provides the semantics that we want for providing a
firmware image. This patch maps the contents of the -bios file into the
address space at the boot flash location.
Tested with the vexpress-a15 model and the Tianocore port.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Roy Franz <roy.franz@linaro.org>
[PMM: folded long line, removed stray \n from error message,
use correct variable for printing image name, exit(1) rather than 0]
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ld_raw and st_raw definitions are only needed in code that
must compile for both user-mode and softmmu emulation. Device
models can use the equivalent ld_p/st_p which are simple
pointer accessors.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
To get it out of the default GPIO list. This allows child devices to
use the un-named GPIO namespace without having to be SSI aware. That
is, there is no more need for machines to know about the obscure
policy where GPIO 0 is the SSI chip-select and GPIO 1..N are the
concrete class GPIOs (defined locally as 0..N-1).
This is most notable in stellaris, which uses a device which has both
SSI and concrete level GPIOs.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Total removal of QEMUMachineInitArgs struct. QEMUMachineInitArgs's fields
are copied into MachineState. Removed duplicated fields from MachineState.
All the other changes are only mechanical refactoring, no semantic changes.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (s390)
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> (PC)
[AF: Renamed ms -> machine, use MACHINE_GET_CLASS()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
We don't implement very much of the GPTM TAR register, and what we
do is wrong. The "are we in RT mode?" field is in s->config, not
s->control. Correct this, use LOG_UNIMP rather than hw_error()
for the cases we don't support, and avoid an unlabelled fallthrough
that makes Coverity complain.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
When writing to the YEARS_REG register, if the year value is
99 then the multiplication by 31536000 will overflow into
the sign bit of a 32 bit value and then be erroneously
sign-extended if time_t is 64 bits. Add a cast to avoid this.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
After commit 767adce2d, they are redundant. This way we don't assign them
except when needed. Once there, there were lots of cases where the ".fields"
indentation was wrong:
.fields = (VMStateField []) {
and
.fields = (VMStateField []) {
Change all the combinations to:
.fields = (VMStateField[]){
The biggest problem (apart from aesthetics) was that checkpatch complained
when we copy&pasted the code from one place to another.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[PMM: fixed minor conflict, corrected commit message typos]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
CVE-2013-4533
s->rx_level is read from the wire and used to determine how many bytes
to subsequently read into s->rx_fifo[]. If s->rx_level exceeds the
length of s->rx_fifo[] the buffer can be overrun with arbitrary data
from the wire.
Fix this by validating rx_level against the size of s->rx_fifo.
Cc: Don Koch <dkoch@verizon.com>
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Don Koch <dkoch@verizon.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
For an AArch64 CPU which supports 64K pages, having the GIC
register banks at 4K offsets is potentially awkward. Move
them out to being at 64K offsets. (This is harmless for
AArch32 CPUs and for AArch64 CPUs with 4K pages, so it is simpler
to use the same offsets everywhere than to try to use 64K offsets
only for AArch64 host CPUs.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1398362083-17737-3-git-send-email-peter.maydell@linaro.org
Rather than having the virt machine model create an a15mpcore_priv
device regardless of the actual CPU type in order to instantiate the GIC,
move to having the machine model create the GIC directly. This
corresponds to a system which uses a standalone GIC (eg the GIC-400)
rather than the one built in to the CPU core.
The primary motivation for this is to support the Cortex-A57,
which for a KVM configuration will use a GICv2, which is not
built into the CPU.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1398362083-17737-2-git-send-email-peter.maydell@linaro.org
This implements the prescaler and source fields of the timer control
register. The source for each timer can be selected among 4 clock
inputs whose frequencies are set through model properties.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-6-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For the machine models which can have a Cortex-A15 CPU (vexpress-a15 and
midway), silently continue if the CPU object has no reset-cbar property
rather than failing. This allows these boards to be used under KVM with
the "-cpu host" option, since the 'host' CPU object has no reset-cbar
property.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Rob Herring <rob.herring@linaro.org>
If the user passes an unknown CPU name via the '-cpu' option, exit
with an error message rather than segfaulting.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Rob Herring <rob.herring@linaro.org>
Currently for both qemu-system-arm and qemu-system-aarch64
the default board model if the user doesn't specify one
is the 'integratorcp'. This is a totally arbitrary historical
accident since it was the first board to be modelled.
That board is now just one target among many for us, and
is a very poor choice of default:
* it's an ancient board that is now only found in the
junkpiles of longtime ARM/Linux hackers, if at all
* it's an ARMv5 CPU, when most distros are now assuming
ARMv7
* it's pretty much unmaintained in QEMU
* it doesn't even have versatilepb's advantage of
supporting PCI
Making it or any other board the default serves only
to confuse people new to ARM who expect something more
like the x86 monoculture. Remove the is_default marker
from integratorcp, and don't set it for any other board,
to give users a nudge that they need to think about
which board they want a QEMU model of. (QEMU will produce
the admittedly slightly cryptic error "No machine found.")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
When trying to load an ELF file specified via -kernel, we need to
pass load_elf() the ELF machine type corresponding to the CPU we're
booting with, not the one corresponding to the softmmu binary
we happen to be running. (The two are different in the case of
loading a 32-bit ARM ELF file into a 32 bit CPU being emulated
by qemu-system aarch64.) This was causing us to incorrectly fail
to load ELF images in this situation.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-id: 1395427476-25546-1-git-send-email-peter.maydell@linaro.org
Set the reset-cbar property on CPUs used by the virt board,
if they have it. This isn't necessary for correct functioning
under Linux (since the A9 isn't a valid CPU for the virt board),
but it is the correct behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1394462692-8871-5-git-send-email-peter.maydell@linaro.org
Set the reset-cbar property of the Exynos4210 SoC's Cortex-A9
CPUs, so that Linux doesn't misrecognize them as a broken
uniprocessor SoC.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1394462692-8871-4-git-send-email-peter.maydell@linaro.org
If the CPU is a Cortex-A9 then we should set its reset-cbar property
so that the guest can read the correct PERIPHBASE/CBAR register value;
newer versions of the Linux kernel (as of commit bc41b8724 in 3.12)
will otherwise assume the CPU is a buggy single core A9 SoC. The
realview-pbx-a9 is the only one of the cluster of boards in realview.c
which works with the Cortex-A9 (ie which gets an a9mpcore_priv device);
make sure it also has reset-cbar set correctly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1394462692-8871-3-git-send-email-peter.maydell@linaro.org
Newer versions of the Linux kernel (as of commit bc41b8724 in 3.12)
now assume that if the CPU is a Cortex-A9 and the reset value of the
PERIPHBASE/CBAR register is zero then the CPU is a specific buggy
single core A9 SoC, and will not try to start other cores. Since we
now have a CPU property for the reset value of the CBAR, we can
just fix the vexpress board model to correctly set CBAR so SMP
works again. To avoid duplicate boilerplate code in both the A9
and A15 daughterboard init functions, we split out the CPU and
private memory region init to its own function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Rob Herring <rob.herring@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1394462692-8871-2-git-send-email-peter.maydell@linaro.org
Convert legacy ->qdev style casts from TYPE_SSI_SLAVE to TYPE_DEVICE.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Introduce local DeviceState variable for transition to QOM realize]
Signed-off-by: Andreas Färber <afaerber@suse.de>
To avoid complication in code that otherwise would not need to
care about whether EL1 is AArch32 or AArch64, we should store
the interrupt mask bits (CPSR.AIF in AArch32 and PSTATE.DAIF
in AArch64) in one place consistently regardless of EL1's mode.
Since AArch64 has an extra enable bit (D for debug exceptions)
which isn't visible in AArch32, this means we need to keep
the enables in env->pstate. (This is also consistent with the
general approach we're taking that we handle 32 bit CPUs as
being like AArch64/ARMv8 CPUs but which only run in 32 bit mode.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Implement the AArch64 TTBR* registers. For v7 these were already 64 bits
to handle LPAE, but implemented as two separate uint32_t fields.
Combine them into a single uint64_t which can be used for all purposes.
Since this requires touching every use, take the opportunity to rename
the field to the architectural name.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
The ethernet device in the musicpal only has two tx queues,
but we modelled it with four CTDP registers, presumably a
cut and paste from the rx queue registers. Since the tx_queue[]
array is only 2 entries long this allowed a guest to overrun
this buffer. Remove the nonexistent registers.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1392737293-10073-1-git-send-email-peter.maydell@linaro.org
Acked-by: Jan Kiszka <jan.kiszka@web.de>
Cc: qemu-stable@nongnu.org
* Fix a bug causing an assertion in the NVIC on ARMv7M models
* More A64 Neon instructions
* Refactor cpreg API to separate out access check functions, as
groundwork for AArch64 system mode
* Fix bug in linux-user A64 store-exclusive of XZR
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140220' into staging
target-arm queue:
* Fix a bug causing an assertion in the NVIC on ARMv7M models
* More A64 Neon instructions
* Refactor cpreg API to separate out access check functions, as
groundwork for AArch64 system mode
* Fix bug in linux-user A64 store-exclusive of XZR
# gpg: Signature made Thu 20 Feb 2014 11:12:57 GMT using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
* remotes/pmaydell/tags/pull-target-arm-20140220: (30 commits)
linux-user: AArch64: Fix exclusive store of the zero register
target-arm: A64: Implement unprivileged load/store
target-arm: A64: Implement narrowing three-reg-diff operations
target-arm: A64: Implement the wide 3-reg-different operations
target-arm: A64: Add most remaining three-reg-diff widening ops
target-arm: A64: Add opcode comments to disas_simd_three_reg_diff
target-arm: A64: Implement store-exclusive for system mode
target-arm: Fix incorrect type for value argument to write_raw_cp_reg
target-arm: Remove failure status return from read/write_raw_cp_reg
target-arm: Remove unnecessary code now read/write fns can't fail
target-arm: Drop success/fail return from cpreg read and write functions
target-arm: Convert miscellaneous reginfo structs to accessfn
target-arm: Convert generic timer reginfo to accessfn
target-arm: Convert performance monitor reginfo to accessfn
target-arm: Split cpreg access checks out from read/write functions
target-arm: Stop underdecoding ARM946 PRBS registers
target-arm: Log bad system register accesses with LOG_UNIMP
target-arm: Remove unused ARMCPUState sr substruct
target-arm: Restrict check_ap() use of S and R bits to v6 and earlier
target-arm: Define names for SCTLR bits
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
All cpreg read and write functions now return 0, so we can clean up
their prototypes:
* write functions return void
* read functions return the value rather than taking a pointer
to write the value to
This is a fairly mechanical change which makes only the bare
minimum set of changes to the callers of read and write functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Replace usages of FROM_I2C_SLAVE() with QOM cast macro.
Rename the parent field. Reuse the type constant in z2_init().
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Use TYPE_AER915 in z2_init() too]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace usages of FROM_I2C_SLAVE() with QOM cast macro.
Rename parent field. Use type constant in tosa_tg_init().
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Replace usages of FROM_I2C_SLAVE() and direct parent field accesses with
QOM cast macro. Rename parent field to assure we caught all. Reuse type
constant in pxa2xx_i2c_init().
Add some missing braces while at it.
Signed-off-by: Andreas Färber <afaerber@suse.de>
The VMSTATE_STRUCT_POINTER macros are a bit odd in that they
must be passed an argument "FooType *" rather than just taking
the FooType. They're only used in one place, so it's easy to
tidy this up. This also lets us use the macro to replace the
hand-rolled VMSTATE_PTIMER.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This patch uses the fact that the midr variable is now a property
This patch sets the midr variable to the boards custom midr
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: a3754b10d150af72e4688a993e484fa2b9b8fa21.1390176489.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The code which decides whether to set up the ATAGS data structure on
reset was using the wrong conditional, which meant we were creating
an ATAGS structure when doing a device-tree boot if the dtb was
autogenerated by the board. This is harmless, but unnecessary, so
bring it in to line with user-provided-dtb boots.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1388326833-656-1-git-send-email-peter.maydell@linaro.org
* QOM interface fixes and unit test
* Device no_user sanitization and documentation
* Device error reporting improvement
* Conversion of APIC, ICC, IOAPIC to QOM realization model
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Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into staging
QOM infrastructure fixes and device conversions
* QOM interface fixes and unit test
* Device no_user sanitization and documentation
* Device error reporting improvement
* Conversion of APIC, ICC, IOAPIC to QOM realization model
# gpg: Signature made Tue 24 Dec 2013 09:04:05 AM PST using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 174F 0347 1BCC 221A 6175 6F96 FA2E D12D 3E7E 013F
* afaerber/tags/qom-devices-for-anthony: (24 commits)
qdev-monitor: Improve error message for -device nonexistant
ioapic: QOM'ify ioapic
ioapic: Cleanup for QOM'ification
icc_bus: QOM'ify ICC
apic: QOM'ify APIC
apic: Cleanup for QOM'ification
qdev: Drop misleading qbus_free() function
qom: Detect bad reentrance during object_class_foreach()
tests: Test QOM interface casting
qom: Do not register interface "types" in the type table and fix names
qom: Split out object and class caches
qdev: Document that pointer properties kill device_add
hw: cannot_instantiate_with_device_add_yet due to pointer props
qdev-monitor: Avoid device_add crashing on non-device driver name
qdev: Do not let the user try to device_add when it cannot work
isa: Clean up use of cannot_instantiate_with_device_add_yet
vt82c686: Clean up use of cannot_instantiate_with_device_add_yet
piix3 piix4: Clean up use of cannot_instantiate_with_device_add_yet
ich9: Document why cannot_instantiate_with_device_add_yet
pci-host: Consistently set cannot_instantiate_with_device_add_yet
...
* mjt/trivial-patches:
acpi unit-test: Remove temporary disk after test
mainstone: Fix duplicate array values for key 'space'
pxa27x: Add 'const' attribute to keyboard maps
pxa27x: Reduce size of keyboard matrix mapping
doc: Mention chardev:id in available devices for -serial
configure: Python tests must be done before help message
configure: Rewrite code for help message
fix -boot strict regressed in commit 6ef4716
vl: make boot_strict variable static (not used outside vl.c)
x86: only allow real mode to access 32bit without LMA
linux-user: Use macro TARGET_NSIG_WORDS where possible
exynos4210: Use macro ARRAY_SIZE where possible
ui/cocoa: Use macro ARRAY_SIZE where possible
misc: Use macro ARRAY_SIZE where possible
openrisc: Fix spelling in comment (transaltion -> translation)
hw/arm/highbank: Simplify code (memory region in device state)
Message-id: 1388182050-10270-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
Don't conditionalise GEM instantiation on networking attachments. The
device should always be present even if not attached to a network.
This allows for probing of the device by expectant guests (such as
OS's). This is needed because sysbus (or AXI in Xilinx's real hw case)
is not self identifying so the guest has no dynamic way of detecting
device absence.
Also allows for testing of the GEM in loopback mode with -net none.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 55649779a68ee3ff54b24c339b6fdbdccd1f0ed7.1388800598.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
cgcc reported a duplicate initialisation. Mainstone includes a matrix
keyboard where two different positions map to 'space'.
QEMU uses the reversed mapping and does not map 'space' to two different
matrix positions.
Some other keys are either missing or might be mapped wrongly (cf. Linux
kernel code). Don't fix these until someone can test them with real
hardware, but add TODO comments.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The mapping is a hardware feature, so it is relatively constant.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The memory region can be included by value instead of by reference in the
device state.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
device_add plugs devices into suitable bus. For "real" buses, that
actually connects the device. For sysbus, the connections need to be
made separately, and device_add can't do that. The device would be
left unconnected, and could not possibly work.
Quite a few, but not all sysbus devices already set
cannot_instantiate_with_device_add_yet in their class init function.
Set it in their abstract base's class init function
sysbus_device_class_init(), and remove the now redundant assignments
from device class init functions.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In an ideal world, machines can be built by wiring devices together
with configuration, not code. Unfortunately, that's not the world we
live in right now. We still have quite a few devices that need to be
wired up by code. If you try to device_add such a device, it'll fail
in sometimes mysterious ways. If you're lucky, you get an
unmysterious immediate crash.
To protect users from such badness, DeviceClass member no_user used to
make device models unavailable with -device / device_add, but that
regressed in commit 18b6dad. The device model is still omitted from
help, but is available anyway.
Attempts to fix the regression have been rejected with the argument
that the purpose of no_user isn't clear, and it's prone to misuse.
This commit clarifies no_user's purpose. Anthony suggested to rename
it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which
I shorten somewhat to keep checkpatch happy. While there, make it
bool.
Every use of cannot_instantiate_with_device_add_yet gets a FIXME
comment asking for rationale. The next few commits will clean them
all up, either by providing a rationale, or by getting rid of the use.
With that done, the regression fix is hopefully acceptable.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The qemu_devtree API is a wrapper around the fdt_ set of APIs.
Rename accordingly.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[agraf: also convert hw/arm/virt.c]
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Message-id: 1387188908-754-6-git-send-email-antonynpavlov@gmail.com
[PMM: don't try to load ROM blob if qtest_enabled()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Also this patch adds initial support for Canon
PowerShot A1100 IS compact camera.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Message-id: 1387188908-754-3-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
DIGIC is Canon Inc.'s name for a family of SoC
for digital cameras and camcorders.
There is no publicly available specification for
DIGIC chips. All information about DIGIC chip
internals is based on reverse engineering efforts
made by CHDK (http://chdk.wikia.com) and
Magic Lantern (http://www.magiclantern.fm) projects
contributors.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1387188908-754-2-git-send-email-antonynpavlov@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit adds support for booting a single AArch64 CPU by setting
appropriate registers. The bootloader includes placeholders for Board-ID
that are used to implement uniform indexing across different bootloaders.
Signed-off-by: Mian M. Hamayun <m.hamayun@virtualopensystems.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1385645602-18662-7-git-send-email-peter.maydell@linaro.org
[PMM:
* updated to use ARMInsnFixup style bootloader fragments
* dropped virt.c additions
* use runtime checks for "is this an AArch64 core" rather than ifdefs
* drop some unnecessary setting of registers in reset hook
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
For AArch64 we will obviously require a different set of
primary and secondary boot loader code fragments. However currently
we hardcode the offsets into the loader code where we must write
the entrypoint and other data into arm_load_kernel(). This makes it
hard to substitute a different loader fragment, so switch to a more
flexible scheme where instead of a raw array of instructions we use
an array of (instruction, fixup-type) pairs that indicate which
words need special action or data written into them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1385645602-18662-6-git-send-email-peter.maydell@linaro.org
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
GIC_BASE_ADDR is not the base address of the GIC. Its clear from the
code that this is the base address of the MPCore. Rename to
MPCORE_PERIPHBASE accordingly.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 90798bd3507205c16238b8b19a1a58c5437cf7ca.1387160489.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix the CBAR initialisation by using the newly defined static property.
Zynq will now correctly init the CBAR to the SCU base address.
Needed to boot Linux on the xilinx_zynq machine model.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 8db7d57ebe5418fed397fcc86ea719f98446c178.1387160489.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
To allow the machine model to set device properties before CPU
realization.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: e57658b4506b26ab6b6fadbe6d7827f669f51895.1387160489.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix the CBAR initialisation by using the newly defined static property.
CBAR is now set before realization, so the intended value is now
actually used.
So I have kind of tested this. I booted an ARM kernel on Highbank with
the stock Highbank DTB. It doesn't boot (and I will be doing something
wrong), but before this patch I got this:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at /workspaces/pcrost/public/linux2.git/arch/arm/mm/ioremap.c:301 __arm_ioremap_pfn_caller+0x180/0x198()
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.13.0-rc1-next-20131126-dirty #2
[<c0015164>] (unwind_backtrace) from [<c00118c0>] (show_stack+0x10/0x14)
[<c00118c0>] (show_stack) from [<c02bd5fc>] (dump_stack+0x78/0x90)
[<c02bd5fc>] (dump_stack) from [<c001f110>] (warn_slowpath_common+0x68/0x84)
[<c001f110>] (warn_slowpath_common) from [<c001f1f4>] (warn_slowpath_null+0x1c/0x24)
[<c001f1f4>] (warn_slowpath_null) from [<c0017c6c>] (__arm_ioremap_pfn_caller+0x180/0x198)
[<c0017c6c>] (__arm_ioremap_pfn_caller) from [<c0017cd8>] (__arm_ioremap_caller+0x54/0x5c)
[<c0017cd8>] (__arm_ioremap_caller) from [<c0017d10>] (__arm_ioremap+0x18/0x1c)
[<c0017d10>] (__arm_ioremap) from [<c03913c0>] (highbank_init_irq+0x34/0x8c)
[<c03913c0>] (highbank_init_irq) from [<c038c228>] (init_IRQ+0x28/0x2c)
[<c038c228>] (init_IRQ) from [<c03899ec>] (start_kernel+0x234/0x398)
[<c03899ec>] (start_kernel) from [<00008074>] (0x8074)
---[ end trace 3406ff24bd97382f ]---
Which disappears with this patch.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: fedec366aaa512d75093635f523d1dbcb3358361.1387160489.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
To allow the machine model to set device properties before CPU
realization.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 8c671e500390c8be0cc363e887e32867d1d1b0d2.1387160489.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix NOR flash manufacturer and device ID reading. This now
properly takes into account device widths and device max widths
as required. The reading of these IDs uses the same max_width
dependent addressing as CFI queries.
The old code remains for chips that don't specify a device width,
as the new code relies on a device width being set in order to
properly operate. The existing code seems very broken.
Only ident0 and ident1 are used in the new code, as other fields
relate to the lock state of blocks in flash.
The VExpress flash configuration has been updated to match
the new code, as the existing definition was 'wrong' in order
to return the expected results with the broken device ID code.
Signed-off-by: Roy Franz <roy.franz@linaro.org>
Message-id: 1386279359-32286-8-git-send-email-roy.franz@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Create vexpress specific pflash registration
function which properly configures the device-width
of 16 bits (2 bytes) for the NOR flash on the
vexpress platform. This change is required for
buffered flash writes to work properly.
Signed-off-by: Roy Franz <roy.franz@linaro.org>
Message-id: 1386279359-32286-5-git-send-email-roy.franz@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Support -cpu host in virt machine (treating it like an A15, ie
with a GIC v2 and the A15's private peripherals.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1385140638-10444-12-git-send-email-peter.maydell@linaro.org
Add 'virt' platform support corresponding to arch/arm/mach-virt
in the Linux kernel tree. This has no platform-specific code but
can use any device whose kernel driver is is able to work purely
from a device tree node. We use this to instantiate a minimal
set of devices: a GIC and some virtio-mmio transports.
Signed-off-by: John Rigby <john.rigby@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1385140638-10444-8-git-send-email-peter.maydell@linaro.org
[PMM:
Significantly overhauled:
* renamed user-facing machine to just "virt"
* removed the A9 support (it can't work since the A9 has no
generic timers)
* added virtio-mmio transports instead of random set of 'soc' devices
(though we retain a pl011 UART)
* instead of updating io_base as we step through adding devices,
define a memory map with an array (similar to vexpress)
* similarly, define irqmap with an array
* folded in some minor fixes from John's aarch64-support patch
* rather than explicitly doing endian-swapping on FDT cells,
use fdt APIs that let us just pass in host-endian values
and let the fdt layer take care of the swapping
* miscellaneous minor code cleanups and style fixes
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If no fdt is provided on command line and the new field
get_dtb in struct arm_boot_info is set then call it to
get a device tree blob.
Signed-off-by: John Rigby <john.rigby@linaro.org>
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Message-id: 1385140638-10444-4-git-send-email-peter.maydell@linaro.org
[PMM: minor tweaks and cleanup]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Linux kernel from version 3.4 requires CM_REFCNT register for sched timer
for Integrator/CP board (integrator_defconfig).
See http://infocenter.arm.com/help/topic/com.arm.doc.dui0138e/ch04s06s11.html
Signed-off-by: Jan Petrous <jan.petrous@tieto.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
