This can save one insn, if the constant has any bits in 32-63 set,
but no bits in 21-31 set.  It never results in more insns.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Since we're always in 64-bit mode, load address performs a full
64-bit add.  Use that for 3-address addition, as well as for
larger constant addends when we lack extended-immediates facility.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

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

This is immediately usable by the tlb lookup code.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Since we have a free temporary and can always just load the constant, we
ought to do so, rather than spending the same effort constraining the const.
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>

We only support 64-bit code generation for s390x.
Don't clutter the code with ifdefs that suggest otherwise.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Set TCG_TARGET_CALL_STACK_OFFSET properly for the abi.  Allocate the
standard TCG_STATIC_CALL_ARGS_SIZE.  And while we're at it, allocate
space for CPU_TEMP_BUF_NLONGS.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

The code to load the high 64 bits assumed that the insn used to
load the low 64 bits zero-extended.  Enforce that.

Allow the clock_gettime() code using monotonic clock to be utilized on
more POSIX compliannt OS's. This started as a fix for OpenBSD which was
listed in one function as part of the previous hard coded list of OS's
for the functions to support but not in the other.
Signed-off-by: NBrad Smith <brad@comstyle.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-id: 20130405003748.GH884@rox.home.comstyle.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-11-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-10-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

A common dependency of the constant's current users:
- hw/apic_common.c
- hw/i386/kvmvapic.c
- target-i386/cpu.c
is "target-i386/cpu.h".
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-9-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-8-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The new function acpi_table_install() installs any blob the caller passes
in. In the next patches this function will be promoted from helper role to
extern.

Reimplementing the logic should make it easier to understand. It also
removes a buffer overflow when

    has_header &&
    cumulative_file_size < ACPI_TABLE_HDR_SIZE - ACPI_TABLE_PFX_SIZE

(In that case the g_realloc() call in the read() loop used to shrink the
"acpi_tables" array, causing an out-of-bounds read access when copying the
header out of "acpi_tables".)

The new code isn't more daring alignment-wise than its predecessor:
"acpi_table_header" is packed, and the uint32_t fields are at offsets 6,
26, and 34.
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-7-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

As one consequence, strtok() -- which modifies its argument -- is replaced
with g_strsplit().
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-6-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-5-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The upcoming changes will need a cleanup section at the end of the
function, plus OptsVisitor reports errors via Error. For now keep
channeling any Errors to stderr.
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-4-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The data is binary, not textual.

Also, acpi_table_add() abuses the "char *f" pointer -- which normally
points to file names to load -- to poke into the table. Introduce "char
unsigned *table_start" for that purpose.
Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-3-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NLaszlo Ersek <lersek@redhat.com>
Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-2-git-send-email-lersek@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
Signed-off-by: NAlberto Garcia <agarcia@igalia.com>
Message-id: 1364412581-3672-4-git-send-email-hdegoede@redhat.com
Cc: Alberto Garcia <agarcia@igalia.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

chardev-frontends need to explictly check, increase and decrement the
avail_connections "property" of the chardev when they are not using a
qdev-chardev-property for the chardev.

This fixes things like:
qemu-kvm -chardev stdio,id=foo -device isa-serial,chardev=foo \
  -mon chardev=foo

Working, where they should fail. Most of the changes here are due to
old hardware emulation code which is using serial_hds directly rather then
a qdev-chardev-property.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Message-id: 1364412581-3672-3-git-send-email-hdegoede@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Add qemu_chr_fe_claim / _release helper functions for properly dealing with
avail_connections.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Message-id: 1364412581-3672-2-git-send-email-hdegoede@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

When the conditions blocking receiving are cleared, check for buffered rx
packets.
Signed-off-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Otherwise make will refuse to build updated .po files.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: NJason Wang <jasowang@redhat.com>
Message-id: 1361545072-30426-1-git-send-email-jasowang@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

While investigating why a 32 bit Windows 2003 guest wasn't able to
successfully perform a shutdown /h, it was discovered that commit
afafe4bb inadvertently dropped the
initialization of the s4_val used to handle s4 shutdown.
Initialize the value as before.
Signed-off-by: NBruce Rogers <brogers@suse.com>
Message-id: 1364928100-487-1-git-send-email-brogers@suse.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

commit 5ec01c2e broke "-cpu ..,enforce",
as it has moved kvm_check_features_against_host() after the
filter_features_for_kvm() call. filter_features_for_kvm() removes all
features not supported by the host, so this effectively made
kvm_check_features_against_host() impossible to fail.

This patch changes the call so we check for host feature support before
filtering the feature bits.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Message-id: 1364935692-24004-1-git-send-email-ehabkost@redhat.com
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NStefan Weil <sw@weilnetz.de>
Message-id: 1364933691-21197-1-git-send-email-sw@weilnetz.de
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

# By Hanweidong (1) and Stefano Stabellini (1)
# Via Stefano Stabellini
* sstabellini/xen-2013-04-03:
  xen-mapcache: pass the right size argument to test_bits
  xen-mapcache: replace last_address_index with a last_entry pointer

Compute the correct size for test_bits().
qemu_get_ram_ptr() and qemu_safe_ram_ptr() will call xen_map_cache()
with size is 0 if the requested address is in the RAM.  Then
xen_map_cache() will pass the size 0 to test_bits() for checking if the
corresponding pfn was mapped in cache. But test_bits() will always
return 1 when size is 0 without any bit testing. Actually, for this
case, test_bits should check one bit. So this patch introduced a
__test_bit_size which is greater than 0 and a multiple of XC_PAGE_SIZE,
then test_bits can work correctly with __test_bit_size
>> XC_PAGE_SHIFT as its size.
Signed-off-by: NZhenguo Wang <wangzhenguo@huawei.com>
Signed-off-by: NWeidong Han <hanweidong@huawei.com>
Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

Replace last_address_index and last_address_vaddr with a single pointer
to the last MapCacheEntry used.
Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

# By Stefan Hajnoczi
# Via Luiz Capitulino
* luiz/queue/qmp:
  chardev: clear O_NONBLOCK on SCM_RIGHTS file descriptors
  qemu-socket: set passed fd non-blocking in socket_connect()
  net: ensure "socket" backend uses non-blocking fds
  oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()

These variables have not been set for a long time.  Do not
include them in config-host.mak.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Message-id: 1364918276-11866-1-git-send-email-pbonzini@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

When we receive a file descriptor over a UNIX domain socket the
O_NONBLOCK flag is preserved.  Clear the O_NONBLOCK flag and rely on
QEMU file descriptor users like migration, SPICE, VNC, block layer, and
others to set non-blocking only when necessary.

This change ensures we don't accidentally expose O_NONBLOCK in the QMP
API.  QMP clients should not need to get the non-blocking state
"correct".

A recent real-world example was when libvirt passed a non-blocking TCP
socket for migration where we expected a blocking socket.  The source
QEMU produced a corrupted migration stream since its code did not cope
with non-blocking sockets.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

socket_connect() sets non-blocking on TCP or UNIX domain sockets if a
callback function is passed.  Do the same for file descriptor passing,
otherwise we could unexpectedly be using a blocking file descriptor.
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>