Some ONE_REGS on s390 are not protected by a capability. Older kernels
might not provide those and return an error. Fortunately these registers
are only critical for the migration path. There is no need to error out
on reset and normal runtime. Furthermore, these kernels don't provide
a proper dirty bitmap anyway, so let's use tracing for those errors.

Also provide generic one reg helper to simplify the code.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

linux-headers update against v3.15-rc2 (a798c10f)
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

This patch creates empty function stubs (used by the gdbserver) in preparation
for the hw debugging support by kvm on s390, which will enable the
__KVM_HAVE_GUEST_DEBUG define in the linux headers and require these methods on
the qemu side.
Signed-off-by: NDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

usb: mtp filesharing

# gpg: Signature made Wed 23 Apr 2014 09:28:37 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-usb-5:
  usb: mtp filesharing
  usb: add CompatibleID support to msos
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Pull tcg 2014-04-22

# gpg: Signature made Tue 22 Apr 2014 22:00:04 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found

* remotes/rth/tags/tcg-next-20140422:
  tcg: Use HOST_WORDS_BIGENDIAN
  tcg: Fix fallback from muls2_i64 to mulu2_i64
  tcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32
  tcg: Relax requirement for mulu2_i32 on 32-bit hosts
  tcg-s390: Remove W constraint
  tcg-sparc: Use the type parameter to tcg_target_const_match
  tcg-ppc64: Use the type parameter to tcg_target_const_match
  tcg-aarch64: Remove w constraint
  tcg: Add TCGType parameter to tcg_target_const_match
  tcg: Fix out of range shift in deposit optimizations
  tci: Mask shift counts to avoid undefined behavior
  tcg: Mask shift quantities while folding
  tcg: Use "unspecified behavior" for shifts
  tcg: Fix warning (1 bit signed bitfield entry) and replace int by bool
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Pull for 20140421

# gpg: Signature made Mon 21 Apr 2014 17:57:24 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found

* remotes/rth/tags/tcg-ia64-pull-20140421:
  tcg-ia64: Convert to new ldst opcodes
  tcg-ia64: Move part of softmmu slow path out of line
  tcg-ia64: Convert to new ldst helpers
  tcg-ia64: Reduce code duplication in tcg_out_qemu_ld
  tcg-ia64: Move tlb addend load into tlb read
  tcg-ia64: Move bswap for store into tlb load
  tcg-ia64: Re-bundle the tlb load
  tcg-ia64: Optimize small arguments to exit_tb
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

trivial patches for 2014-04-18

# gpg: Signature made Fri 18 Apr 2014 07:36:15 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# 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: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514  66A7 BEE5 9D74 A4C3 D7DB

* remotes/mjt/tags/trivial-patches-2014-04-18:
  Fix grammar in comment
  doc: grammify "allows to"
  configure: Remove redundant message for -Werror
  scripts: add sample model file for Coverity Scan
  xbzrle.c: Avoid undefined behaviour with signed arithmetic
  int128.h: Avoid undefined behaviours involving signed arithmetic
  hw/ide/ahci.c: Avoid shift left into sign bit
  net: Report error when device / hub combo is not found.
  configure: Fix indentation of help for --enable/disable-debug-info
  qga: trivial fix for unclear documentation of guest-set-time
  vl: Report accelerator not supported for target more nicely
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Implementation of a USB Media Transfer Device device for easy
filesharing.  Read-only.  No access control inside qemu, it will
happily export any file it is able to open to the guest, i.e.
standard unix access rights for the qemu process apply.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

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

Instead of rolling a local TCG_TARGET_WORDS_BIGENDIAN.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Brown Bag sez, don't put the fallback code into the wrong function.
Also, check for muluh_i64 and use tcg_gen_mulu2_i64 instead of raw ops.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Rather than hard-coding use of mulu2_i32, allow muluh_i32.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Instead require either mulu2_i32 or muluh_i32.  The code in tcg-op.h
already supports looking for both.  Previous incomplete conversion?
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Now redundant with the type parameter to tcg_target_const_match.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

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

Now redundant with the type parameter to tcg_target_const_match.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Most 64-bit targets need to be able to ignore the high bits
of a TCG_TYPE_I32 value.
Suggested-by: NStuart Brady <sdb@zubnet.me.uk>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

By inspection, for a deposit(x, y, 0, 64), we'd have a shift of (1<<64)
and everything else falls apart.  But we can reuse the existing deposit
logic to get this right.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

TCG now requires unspecified behavior rather than a potential crash,
bring the C shift within the letter of the law.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The TCG result would be undefined, but we can at least produce one
plausible result and avoid triggering the wrath of analysis tools.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Change the definition such that shifts are not allowed to crash
for any input.
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Static code analyzers complain about signed bitfields with only a single
bit. is_ld is used as a boolean value, so make it bool.

ppc64 already used bool for the 2nd argument is_ld of the local function
add_qemu_ldst_label. Modify all other TCG targets to do follow this
example.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

English language grammar does not allow usage
of the word "allows" directly followed by an
infinitive, declaring constructs like "something
allows to do somestuff" un-grammatical.  Often
it is possible to just insert "one" between "allows"
and "to" to make the construct grammatical, but
usually it is better to re-phrase the statement.

This patch tries to fix 4 examples of "allows to"
usage in qemu doc, but does not address comments
in the code with similar constructs.  It also adds
missing "the" in the same line.
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

The compiler flag -Werror is printed (or not printed) as any other
compiler flag which is part of QEMU_CFLAGS.

Therefore an extra output line for -Werror is redundant and can be removed.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

This is the model file that is being used for the QEMU project's scans
on scan.coverity.com.  It fixed about 30 false positives (10% of the
total) and exposed about 60 new memory leaks.

The file is not automatically used; changes to it must be propagated
to the website manually by an admin (right now Markus, Peter and me
are admins).
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Use unsigned types for doing bitwise arithmetic in the xzbrle
calculations, to avoid undefined behaviour:

 xbzrle.c:99:49: runtime error: left shift of 72340172838076673
 by 7 places cannot be represented in type 'long'
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Add casts when we're performing arithmetic on the .hi parts of an
Int128, to avoid undefined behaviour.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Add U suffix to avoid shifting left into the sign bit, which
is undefined behaviour.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Also convert nearby monitor_printf() call to error_report().
Signed-off-by: NHani Benhabiles <hani@linux.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

The help text for the --enable-debug-info and --disable-debug-info
command line options was misindented: delete the stray extra space
and bring it in to line with everything else.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

We mixed the use of "guest time", "system time", "hardware time",
"RTC" in documentation, it's unclear.

This patch just added two remarks of RTC and replace two "guest time"
by "guest's system time".
Signed-off-by: NAmos Kong <akong@redhat.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

When you ask for an accelerator not supported for your target, you get
a bogus "accelerator does not exist" message:

  $ qemu-system-arm -machine none,accel=kvm
  KVM not supported for this target
  "kvm" accelerator does not exist.
  No accelerator found!

Suppress it.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

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

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

Still inline, but updated to the new routines.  Always use the LE
helpers, reusing the bswap between the fast and slot paths.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The only differences were in the bswap insns emitted.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

Saving at least two cycles per store, and cleaning up the code.
Signed-off-by: NRichard Henderson <rth@twiddle.net>