Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Use a new "retxl" member of CPUS290XState to return the "eXtra Low" part
of a 128-bit value.  That said, this will get used when two independent
values need returning (e.g. quotient+remainder) as well.

At the same time, shuffle the elements of CPUS390XState to get this new
space from existing padding in the structure.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Make the user path more like the system path.  Prepare for more kinds
of runtime exceptions.  Rename ILC to ILEN to make it clear that we
want to pass around a full instruction length, rather than a "code"
that happens to be stored one bit left in a larger field.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Lots of duplicated code replaced with a couple of tables.  We no longer
attempt to manually invert the logic operation: the comments now match
the code.  In the fully general test, constant propagate (1 << (3 - cc))
into (8 >> cc).

The new function will be usable by non-branch insns as well.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

We were treating psw.mask as the 32-bit quantity it is in ESA mode.
In particular, the CC field was at the wrong place.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Yes, we're about to rewrite all of this, but having this unconditional
jump recompute cc_op is a large source of "false diff errors" when
trying to examine before and after dumps.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

There were are two exit paths for which we forgot to
copy s->cc_op back to the tcg register.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

DISAS_EXCP is exit via exception; we wanted DISAS_JUMP.
This matters when we start cleaning up the TB exit paths.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Which highlights a lot of cc helpers that no longer exist.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

At the same time, tidy other usages of tcg_gen_deposit_i64.
In some cases we can "type cast" rather than extend, and in
others we can allow tcg_gen_deposit_i64 itself to optimize
the HOST_LONG_BITS==32 case.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

The real gdb protocol doesn't split out pc or cc as real registers.
Those are pseudos that are extracted as needed from the PSW.  Don't
modify env->cc_op during read -- that way lies heisenbugs.

Fill in the XXX for the fp registers.

Remove duplicated defines in cpu.h.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Also fix disassembly for COMPARE AND BRANCH.  The table must be
sorted by primary opcode, and several were out of place.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

pc-testdev.c cannot be compiled with MinGW (and other non POSIX hosts):

  CC    i386-softmmu/hw/i386/../pc-testdev.o
qemu/hw/i386/../pc-testdev.c:38:22: warning: sys/mman.h: file not found
qemu/hw/i386/../pc-testdev.c: In function ‘test_flush_page’:
qemu/hw/i386/../pc-testdev.c:103: warning: implicit declaration of function ‘mprotect’
...
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

The interface to normalizeRoundAndPackFloat64 requires that the
high bit be clear.  Perform one shift-right-and-jam if needed.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

* stefanha/trivial-patches:
  spice: drop incorrect vm_change_state_handler() opaque
  linux-user/syscall.c: remove forward declarations
  hw/mcf5206: Reduce size of lookup table
  Remove --sparc_cpu option from the configure list
  pseries: Remove unneeded include statement (fixes MinGW builds)
  pc_sysfw: Check for qemu_find_file() failure
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

* kraxel/testdev.1:
  pc: remove bochs bios debug ports
  hw: Add test device for unittests execution
  add isa-debug-exit device.
  switch debugcon to memory api
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

* kraxel/acpi.2:
  apci: assign memory regions to ich9 lpc device
  apci: assign memory regions to piix4 acpi device
  acpi: autoload dsdt
  configure: also symlink *.aml files
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The spice_server pointer is a global variable and
vm_change_state_handler() therefore does not use its opaque parameter.

The vm change state handler is added with a pointer to the spice_server
pointer.  This is useless and we probably would not want 2 levels of
pointers.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NUri Lublin <uril@redhat.com>

instead use the correct headers that define these functions.
Requested-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NJohn Spencer <maillist-qemu@barfooze.de>
Reviewed-by: Amos Kong <kongjianjun@gmail.com>
Reviewed-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

This typically reduces the size from 512 bytes to 128 bytes.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

  commit 9b9c37c3 always assume sparcv9,
the others are no longer supported. Remove --sparc_cpu option from the
configure list.
Signed-off-by: NChen Wei-Ren <chenwj@iis.sinica.edu.tw>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

sys/mman.h is not needed (tested on Linux) and unavailable for MinGW,
so remove it.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

pc_fw_add_pflash_drv() ignores qemu_find_file() failure, and happily
creates a drive without a medium.

When pc_system_flash_init() asks for its size, bdrv_getlength() fails
with -ENOMEDIUM, which isn't checked either.  It fails relatively
cleanly only because -ENOMEDIUM isn't a multiple of 4096:

    $ qemu-system-x86_64 -S -vnc :0 -bios nonexistant
    qemu: PC system firmware (pflash) must be a multiple of 0x1000
    [Exit 1 ]

Fix by handling the qemu_find_file() failure.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

Prehistoric leftover, zap it.  We poweroff via acpi these days.

And having a port (0x501,0x502) where any random guest write will make
qemu exit -- with no way to turn it off -- is a bad joke anyway.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Add a test device which supports the kvmctl ioports,
so one can run the KVM unittest suite.

Intended Usage:

qemu-system-x86_64 -nographic \
    -device pc-testdev \
    -device isa-debug-exit,iobase=0xf4,iosize=0x04 \
    -kernel /path/to/kvm/unittests/msr.flat

Where msr.flat is one of the KVM unittests, present on a
separate repo,

git://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git

[ kraxel: more memory api + qom fixes ]

CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: NLucas Meneghel Rodrigues <lmr@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

When present it makes qemu exit on any write.
Mapped to port 0x501 by default.

Without this patch Anthony doesn't allow me to
remove the bochs bios debug ports because his
test suite uses this.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Also some QOM glue while being at it.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Get rid of get_system_io() usage.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Get rid of get_system_io() usage.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>