Commit b14ef7c9
introduced cpu_unassigned_access() function. On Sparc,
the function does not restore AREG0 used for global CPUState
on function exit, causing bugs with non-faulting unassigned
memory accesses. Alpha, Microblaze and MIPS are not affected.

Fix by restoring AREG0 on exit. Remove excess saving by
do_unassigned_access() functions.

Also ignore unassigned accesses outside of CPU context.
Reported-by: NBob Breuer <breuerr@mc.net>
Tested-by: NBob Breuer <breuerr@mc.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fixes emulation with io-thread.
Signed-off-by: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Fix incorrect logic and typos in previous commit
1bfd07bd.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix breakage by a640f031
and 55c0975c.

Some TCG targets don't implement all TCG ops, so make
optimizing those conditional.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Perform constant folding for NOT and EXT{8,16,32}{S,U} operations.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Perform constant forlding for SHR, SHL, SAR, ROTR, ROTL operations.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Perform constant folding for AND, OR, XOR operations.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Perform actual constant folding for ADD, SUB and MUL operations.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Make tcg_constant_folding do copy and constant propagation. It is a
preparational work before actual constant folding.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Added file tcg/optimize.c to hold TCG optimizations. Function tcg_optimize
is called from tcg_gen_code_common. It calls other functions performing
specific optimizations. Stub for constant folding was added.
Signed-off-by: NKirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move softmmu_exec.h include directives from target-*/exec.h to
target-*/op_helper.c. Move also various other stuff only used in
op_helper.c there.

Define global env in dyngen-exec.h.

For i386, move wrappers for segment and FPU helpers from user-exec.c
to op_helper.c. Implement raise_exception_err_env() to handle dynamic
CPUState. Move the function declarations to cpu.h since they can be
used outside of op_helper.c context.

LM32, s390x, UniCore32: remove unused cpu_halted(), regs_to_env() and
env_to_regs().

ARM: make raise_exception() static.

Convert
#include "exec.h"
to
#include "cpu.h"
#include "dyngen-exec.h"
and remove now unused target-*/exec.h.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This patch almost rewrites acpi_table_add() function
(but still leaves it using old get_param_value() interface).
The result is that it's now possible to specify whole table
(together with a header) in an external file, instead of just
data portion, with a new file= parameter, but at the same time
it's still possible to specify header fields as before.

Now with the checkpatch.pl formatting fixes, thanks to
Stefan Hajnoczi for suggestions, with changes from
Isaku Yamahata, and with my further refinements.
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: John Baboval <john.baboval@virtualcomputer.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
[yamahata@valinux.co.jp: fix compile error, comment fallthrough]
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Implement %fprs.DU/DL bits.
The FPU sets %fprs.DL and %fprs.DU when values are assigned to %f0-31
and %f32-63 respectively.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix the problem that result values are not assigned to the destination
registers.
Signed-off-by: NTsuneo Saito <tsnsaito@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This leads to random off-by-one error.
When the size of the SD is exactly 1GB, the emulation was returning a
wrong SDHC CSD descriptor.
Signed-off-by: NVincent Palatin <vpalatin@chromium.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

The code which prints the debug usage message on '-d ?' for *-user
has to come before the check for "not enough arguments", so that
"qemu-foo -d ?" prints the list of possible debug log items rather than
the generic usage message. (This was inadvertently broken in commit
c235d738.)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

For unknown reasons, Windows drivers (tested with XP and Win7) ignore
usb-tablet events that move the pointer to 0/0. So always report 0/0 as
1/0.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Zipit Z2 is small PXA270 based handheld.
Signed-off-by: NVasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

The program actions onenand_prog_main() and onenand_prog_spare()
can only set bits.

This implies a rewrite of onenand_erase() to not use the program
functions, since erase does need to set bits.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Handle the manufacturer, device and version IDs separately rather than
smooshing them all together into a single uint32_t. Note that the ID
registers are actually 16 bit, even though typically the top bits are 0
and the Read Identification Data command only returns the bottom 8 bits.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Pass the BlockDriverState to the onenand init function so it doesn't
need to look up the drive itself.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Qdevify the NAND device.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Writing to a NAND device cannot set bits, it can only clear them;
implement this rather than simply copying the data.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

After receiving READ STATUS command all subsequent IO reads should return
the status register value until another command is issued.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Support NAND devices which are wider than 8 bits.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Add support for NAND devices of over 1Gb.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Pass the BlockDeviceState to the nand_init() function rather
than having it look it up via drive_get() itself.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Since lm832x has been qdev'ified, its users will generally
have a DeviceState pointer rather than an i2c_slave pointer,
so adjust lm832x_key_event's prototype to suit.

This allows the n810 (its only user) to actually pass a correct
pointer to it rather than NULL. The effect is that we no longer
segfault when a key is pressed.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Convert the OMAP GPIO module to qdev.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

The OMAP2430 has a fifth GPIO module which earlier OMAP2 models lack; add
the clock definition for it.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

Add helper function omap_l4_region_base() to return the base address
of a particular region of an L4 target agent.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

The breakage was introduced by the commit 13661089Signed-off-by: NTeLeMan <geleman@gmail.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This allows to specify -machine options without setting an explicit
machine type. We will pick the default machine in this case. Requesting
the list of available machines is still possible via '-machine ?' e.g.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

It's already allowed by the example; there are about 1800 instances in the
tree; and disallowing it would lead to

    if (a) {
        ...
    } else {
        if (b) {
            ...
        } else {
            if (c) {
                ...
            } else {
                if (d) {
                    ...
                } else {
                    ...
                }
            }
        }
    }

instead of

    if (a) {
        ...
    } else if (b) {
        ...
    } else if (c) {
        ...
    } else if (d) {
        ...
    } else {
        ...
    }

which is more readable.
Acked-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>