Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1b24baa1ec3a174d5cad31e079d829904b53077b.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 49a8d12eeb117e5530b2fab02af7681b54f9245c.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 0ff4f5f2b8b7afdb85a0c241403ad73f472f0b81.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

qemu-char is now independent of the QEMU main loop.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 3cda0bbcfb94912df8a767983a52bb71a4a3231d.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 05a883ce5a98275b976bf0124610599859c2b7da.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: b50e668c4f4146a654c5d4412440eb9e589f2c02.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This lets ptys support adding front end watchs.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 23380f37b22d407ba0b9e080f6ea0d66b279f2d2.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This allows a front-end to request for a callback when the backend
is writable again.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 96f93c0f741064604bbb6389ce962191120af8b7.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

I didn't bother switching to g_io_channel_read/write because we need to use
sendmsg on Unix.  No problem though since we're using an unbuffered channel.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 002f726576dfb51bca4854aa257b74d77c1cd4e8.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 775a2bd666a3d1fa008656bf97191b7573c6ffb5.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 339eebf3c59a450b0354056e9ac4b41f67230831.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This uses the newly introduced IOWatchPoll source.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 0cb5d14510ee835a0ebc23676d10a2cce9280da5.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This is a special GSource that supports CharDriverState style
poll callbacks.

For reviewability and bisectability, this code is #if 0'd out in this
patch to avoid unused warnings since all of the functions are static.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 9b59ac17b9d0bb3972a73fed04d415f07b391936.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This code is very old dating back to 2007.  What is puzzling is that
STDIO_MAX_CLIENTS was always #define to 1 meaning that all of the code to deal
with more than one client was unreachable.

Just remove the whole mess of it.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: d276bccdbf4e7463020c5f539f61ae3bfbc88d1d.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Right now the inet connect code tries all available addresses but until one
doesn't fail.  It passes local_err each time without clearing it from the
previous failure.  This can trigger an assert since the inet connect code
tries to set an error on an object != NULL.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 16c806d60aa5e9660ed7751bb4e37dcd278f97f0.1362505276.git.amit.shah@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The BIT6 of Status Register(SR):

SR[6] behaves the same as R/B# pin
    SR[6] = 0 indicates the device is busy;
    SR[6] = 1 means the device is ready

Some NAND flash controller (i.e. ftnandc021) relies on the SR[6]
to determine if the NAND flash erase/program is success or error timeout.

P.S:
The exmaple NAND flash datasheet could be found at following link:
http://www.mxic.com.tw/QuickPlace/hq/PageLibrary4825740B00298A3B.nsf/h_Index/8FEA549237D2F7674825795800104C26/$File/MX30LF1G08AA,%203V,%201Gb,%20v1.1.pdfSigned-off-by: NKuo-Jung Su <dantesu@gmail.com>
Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

* 'target-arm.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
  MAINTAINERS: add entry for ARM KVM guest cores
  configure: Enable KVM on ARM
  hw/kvm/arm_gic: Implement support for KVM in-kernel ARM GIC
  target-arm: Use MemoryListener to identify GIC base address for KVM
  hw/arm_gic: Convert ARM GIC classes to use init/realize
  hw/arm_gic: Add presave/postload hooks
  ARM KVM: save and load VFP registers from kernel
  ARM: KVM: Add support for KVM on ARM architecture
  target-arm: Drop CPUARMState* argument from bank_number()
  linux-headers: resync from mainline to add ARM KVM headers
  oslib-posix: Align to permit transparent hugepages on ARM Linux
  target-arm: Don't decode RFE or SRS on M profile cores
  target-arm: Factor out handling of SRS instruction

N32 is a 64-bit cpu with a 32-bit address space.  We have
existing cpp defines for this situation, but weren't using them.

This does mean that the linux-user/mipsn32 directory must be
merged with the linux-user/mips64 directory, and differences
must be resolved via ifdefs.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

At this point we can enable compilation, though things
still don't work.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Deleting these first makes the next patch much easier to read.
This doesn't cause any sort of compilation failure because we
have not yet enabled n32/n64 compilation.  This is dead code.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Add an entry indicating maintainer status for the ARM KVM code.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Enable KVM on ARM hosts, now that all the necessary components
for it exist.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Implement support for using the KVM in-kernel GIC for ARM.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NAndreas Färber <afaerber@suse.de>

When using an in-kernel GIC with KVM, we need to tell the kernel where
the GIC's memory mapped registers live. Do this by registering a
MemoryListener which tracks where the board model maps the A15's
private peripherals, so we can finish the GIC initialisation
when the GIC is actually mapped.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Convert the ARM GIC classes to use init/realize rather than
SysBusDevice::init. (We have to do them all in one patch to
avoid unconverted subclasses calling a nonexistent SysBusDevice
init function in the base class and crashing.)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NAndreas Färber <afaerber@suse.de>

Add presave/postload hooks to the ARM GIC common base class.
These will be used by the KVM in-kernel GIC subclass to sync
state between kernel and userspace when migrating.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NAndreas Färber <afaerber@suse.de>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Add support for saving and restoring VFP register state from the
kernel. This includes a check that the KVM-created CPU has full
VFP support (as the TCG Cortex-A15 model always does), since for
the moment ARM QEMU doesn't have any way to tweak optional features
on created CPUs.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Add basic support for KVM on ARM architecture.
Signed-off-by: NChristoffer Dall <cdall@cs.columbia.edu>
[PMM: Minor tweaks and code cleanup, switch to ONE_REG]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Drop the CPUARMState* argument from bank_number(), since we only
use it for passing to cpu_abort(). Use hw_error() instead.
This avoids propagating further interfaces using env pointers.

In the long term this function's callers need auditing to fix
problems where badly behaved guests can pass invalid bank numbers.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NAndreas Färber <afaerber@suse.de>

Resync QEMU's copy of the Linux kernel headers from
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 2ef14f4. This adds the ARM KVM headers, since ARM KVM
support has just hit mainline via Russell's ARM tree.

This is not a pure sync -- I have removed by hand some changes
that would have reverted updates for s390x and ppc which have not
yet hit mainline.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

ARM Linux (like x86-64 Linux) can use transparent hugepages for
KVM if memory blocks are 2MiB aligned; set QEMU_VMALLOC_ALIGN
accordingly.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

M profile cores do not have the RFE or SRS instructions, so
correctly UNDEF these insn patterns on those cores.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Factor out the handling of the SRS instruction rather than
duplicating it between the Thumb and ARM decoders. This in
passing fixes two bugs in the Thumb decoder's SRS handling
which didn't exist in the ARM decoder:
 * (LP:1079080) storing CPSR rather than SPSR (fixed in the
   ARM decoder in commit c67b6b71 in 2009)
 * failing to free the 'addr' TCG temp in the writeback case
Reported-by: NCesson Vincent <vcesson@stmi.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Add accumulator arguments to gen_HILO and gen_muldiv, rather than
extracting the accumulator directly from ctx->opcode.  The extraction
was only right for the standard encoding: MIPS16 doesn't have access
to the DSP registers, while microMIPS encodes the accumulator register
in a different field (bits 14 and 15).

Passing the accumulator register is probably an over-generalisation
for division and 64-bit multiplication, which never access anything
other than HI and LO, and which always pass 0 as the new argument.
Separating them felt a bit fussy though.
Signed-off-by: NRichard Sandiford <rdsandiford@googlemail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

GCC and GAS are capable of generating traps or breaks to check for
division by zero.  Additionally, GAS is capable of generating traps
or breaks to check for overflow on certain division and multiplication
operations.  The Linux kernel translates these traps and breaks into
signals.  This patch implements the corresponding feature in QEMU.
Signed-off-by: NMeador Inge <meadori@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The previous implementation incorrectly used same macro to detect overflow
for addition and subtraction. This patch makes distinction between these
two, and creates separate macros. The affected routines are changed
accordingly.

This change also includes additions to the existing tests for SUBQ_S_PH and
SUBQ_S_W that would trigger the fixed issue, and it removes dead code from
the test file. The last test case in subq_s_w.c is a bug found/reported/
isolated by Klaus Peichl from Dolby.
Signed-off-by: NPetar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>