Commit Graph

22197 Commits

Author SHA1 Message Date
Richard Henderson
0aed257f08 tcg: Add TCG_COND_NEVER, TCG_COND_ALWAYS
There are several cases that can be handled easier inside both
translators and code generators if we have out-of-band values
for conditions.  It's easy enough to handle ALWAYS and NEVER in
the natural way inside the tcg middle-end.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:40 +02:00
Richard Henderson
bcc66562ad tcg: Add is_unsigned_cond
Before we rearrange the TCG_COND enumeration, add a predicate for
the (single) use of comparisons vs TCGCond.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
457ebdcd91 vga: cleanup after isa_vga_init() and pci_vga_init() conversion
Now that all machines call isa_vga_init() or pci_vga_init(), some unused
code can be removed.

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
f642dfce19 mips/r4k: use the new is_vga_init() function
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
16094b75b3 pc: use the new pci_vga_init() and isa_vga_init() functions
The CONFIG_SPICE is now tested in vl.c and thus not needed anymore.

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
f289877143 sun/sun4u: use the new pci_vga_init() function
As a bonus it allows new vga card types (including none).

Acked-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
1ddcae82a2 ppc/pSeries: use the new pci_vga_init() function
Keep the case to prevent some vga card to be selected.

Cc: Alexander Graf <agraf@suse.de>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
95fa01fab0 ppc/prep: use the new pci_vga_init() function
As a bonus it allows new vga card types (including none).

Acked-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:39 +02:00
Aurelien Jarno
3e20ad3a9b ppc/oldworld: use the new pci_vga_init() function
As a bonus it allows new vga card types (including none).

Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
e7a2e96df0 ppc/newworld: use the new pci_vga_init() function
As a bonus it allows new vga card types (including none).

Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
606f90cc22 alpha: use the new pci_vga_init() function
This remove the fallback to std-vga in case, as availability of the
requested vga device is now tested in vl.c, and returns an error message
to the user.

Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
9c59864d16 mips/malta: use the new pci_vga_init() function
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
14e7a6456e isa: add a isa_vga_init() function
This function create a ISA VGA device according to the value of
vga_interface_type. It returns a ISADevice (and not a DeviceState).

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
129d42fb84 pci: add a pci_vga_init() function
This function create a PCI VGA device according to the value of
vga_interface_type. It returns a PCIDevice (and not a DeviceState).

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
3605ded557 vl.c: default to std if cirrus is not available
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
879049a397 vl.c: check for qxl availability
Check for qxl availability in vl.c. This will allow to remove #ifdef
CONFIG_SPICE .. #endif later in this series

Cc: Anthony Liguori <aliguori@us.ibm.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:38 +02:00
Aurelien Jarno
36b7f27d21 vl.c: convert *vga_enabled functions to QOM
And get rid of qdev_exists().

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:37 +02:00
Aurelien Jarno
6405c86412 vga: rename isa_vga_init() to isa_std_vga_init()
This better explains what is this function about. Adjust all callers.

Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:37 +02:00
Aurelien Jarno
a1e472119a vga: rename pci_vga_init() into pci_std_vga_init()
This better explains what is this function about. Adjust all callers.

Cc: Alexander Graf <agraf@suse.de>
Cc: Andreas Färber <andreas.faerber@web.de>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:48:37 +02:00
Aurelien Jarno
626cd050e2 tcg: remove obsolete jmp op
The TCG jmp operation doesn't really make sense in the QEMU context, it
is unused, it is not implemented by some targets, and it is wrongly
implemented by some others.

This patch simply removes it.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
Acked-by: Stefan Weil<sw@weilnetz.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 18:47:04 +02:00
Aurelien Jarno
f783cb2240 target-xtensa: de-optimize EXTUI
Now that "and" with 0xff, 0xffff and 0xffffffff and "shr" with 0 shift
are optimized in tcg/tcg-op.h there is no need to do it in
target-xtensa/translate.c.

Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-10-06 12:22:29 +02:00
Stefan Weil
c9159fe9aa Remove libhw
The entries for libhw* are no longer needed in .gitignore.

There is also no longer a difference between common-obj-y and
hw-obj-y, so one of those two macros is sufficient.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 16:07:49 -05:00
Paolo Bonzini
b8994faf2a rtc: implement century byte
Implement the century byte in the RTC emulation, and test that it works.
This leads to some annoying compatibility code because we need to treat
a value of 2000 for the base_year property as "use the century byte
properly" (which would be a value of 0).

The century byte will now be always-zero, rather than always-20,
for the MIPS Magnum machine whose base_year is 1980.  Commit 42fc73a
(Support epoch of 1980 in RTC emulation for MIPS Magnum, 2009-01-24)
correctly said:

    With an epoch of 1980 and a year of 2009, one could argue that [the
    century byte] should hold either 0, 1, 19 or 20.  NT 3.50 on MIPS
    does not read the century byte.

so I picked the simplest and most sensible implementation which is to
return 0 for 1980-2079, 1 for 2080-2179 and so on.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 08:02:30 -05:00
Paolo Bonzini
e67edb943f rtc: map CMOS index 0x37 to 0x32 on read and writes
QEMU's attempt to implement the century byte cover two possible places
for the byte.  A common one on modern chipsets is 0x32, but QEMU also
stores the value in 0x37 (apparently for IBM PS/2 compatibility---it's
only been 25 years).  To simplify the implementation of the century
byte, store it only at 0x32 but remap transparently 0x37 to 0x32 when
reading and writing from CMOS.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 08:02:30 -05:00
Paolo Bonzini
b6db4aca20 rtc: fix overflow in mktimegm
When setting a date in 1980, Linux is actually disregarding the century
byte and setting the year to 2080.  This causes a year-2038 overflow
in mktimegm.  Fix this by doing the days-to-seconds computation in
64-bit math.

Reported-by: Lucas Meneghel Rodrigues <lookkas@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 08:02:30 -05:00
Paolo Bonzini
e0fea6b1e4 qtest: implement QTEST_STOP
It is quite difficult to debug qtest test cases without extra wrapper
scripts for QEMU or similar.  This patch adds a simple environment
variable-based trigger that sends a STOP signal to the QEMU instance
under test, before attempting to connect to its QMP session.

This will block execution of the testcase and give time to attach a
debugger to the stopped QEMU process.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 08:02:20 -05:00
Stefan Weil
610b823ef6 qemu-barrier: Fix compiler version check for future gcc versions
The current check will give a wrong result for gcc-5.x with x < 4.
Using QEMU_GNUC_PREREQ is simpler and fixes that issue.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 08:00:22 -05:00
Jim Meyering
9b9e3ec1b4 doc: update HACKING wrt strncpy/pstrcpy
Reword the section on strncpy: its NUL-filling is important
in some cases.  Mention that pstrcpy's signature is different.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:38 -05:00
Jim Meyering
9310b9be14 hw/r2d: add comment: this strncpy use is ok
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:38 -05:00
Jim Meyering
00ea188125 qcow2: mark this file's sole strncpy use as justified
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:38 -05:00
Jim Meyering
3cda346269 acpi: remove strzcpy (strncpy-identical) function; just use strncpy
Adjust all uses s/strzcpy/strncpy/ and mark these uses
of strncpy as "ok".

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:38 -05:00
Jim Meyering
2e679780ae libcacard/vcard_emul_nss: use pstrcpy in place of strncpy
Replace strncpy+NUL-terminate use with use of pstrcpy.
This requires linking with cutils.o (or else vssclient doesn't link),
so add that in the Makefile.

Acked-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:38 -05:00
Jim Meyering
1ab516ed9b qemu-ga: prefer pstrcpy: consistently NUL-terminate ifreq.ifr_name
NUL-termination of the .ifr_name field is not required, but is fine
(and preferable to using strncpy and leaving the reader to wonder),
since the first thing the linux kernel does is to clear the last byte.
Besides, using pstrcpy here makes this setting of ifr_name consistent
with the other code (e.g., net/tap-linux.c) that does the same thing.

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
9d055d8ac8 vscsi: avoid unwarranted strncpy
Don't use strncpy when the source string is known to fit
in the destination buffer.  Use equivalent memcpy.
We could even use strcpy, here, but some static analyzers
warn about that, so don't add new uses.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
9238c2099d virtio-9p: avoid unwarranted uses of strncpy
In all of these cases, the uses of strncpy were unnecessary, since
at each point of use we know that the NUL-terminated source bytes
fit in the destination buffer.  Use memcpy in place of strncpy.

Acked-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
e5fda03839 bt: replace fragile snprintf use and unwarranted strncpy
In bt_hci_name_req a failed snprintf could return len larger than
sizeof(params.name), which means the following memset call would
have a "length" value of (size_t)-1, -2, etc...  Sounds scary.
But currently, one can deduce that there is no problem:
strlen(slave->lmp_name) is guaranteed to be smaller than
CHANGE_LOCAL_NAME_CP_SIZE, which is the same as sizeof(params.name),
so this cannot happen.  Regardless, there is no justification for
using snprintf+memset.  Use pstrcpy instead.

Also, in bt_hci_event_complete_read_local_name, use pstrcpy in place
of unwarranted strncpy.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
5847d9e139 ui/vnc: simplify and avoid strncpy
Don't bother with strncpy.  There's no need for its zero-fill.
Use g_strndup in place of g_malloc+strncpy+NUL-terminate.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
900cfbcac6 linux-user: remove two unchecked uses of strdup
Remove two uses of strdup (use g_path_get_basename instead),
and add a comment that this strncpy use is ok.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
ae21506801 ppc: avoid buffer overrun: use pstrcpy, not strncpy
A terminal NUL is required by caller's use of strchr.
It's better not to use strncpy at all, since there is no need
to zero out hundreds of trailing bytes for each iteration.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
3eadc68ebd os-posix: avoid buffer overrun
os_set_proc_name: Use pstrcpy, in place of strncpy and the
ineffectual preceding assignment: name[sizeof(name) - 1] = 0;

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
1044dc1118 lm32: avoid buffer overrun
Actually do what the comment says, using pstrcpy NUL-terminate:
strncpy does not always do that.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
a79b5f8b80 hw/9pfs: avoid buffer overrun
v9fs_add_dir_node and qemu_v9fs_synth_add_file used strncpy
to form node->name, which requires NUL-termination, but
strncpy does not ensure NUL-termination.
Use pstrcpy, which does.

Acked-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:37 -05:00
Jim Meyering
d66f8e7bd3 vmdk: relative_path: use pstrcpy in place of strncpy
Avoid strncpy+manual-NUL-terminate.  Use pstrcpy instead.

Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:36 -05:00
Jim Meyering
3178e2755e sheepdog: avoid a few buffer overruns
* parse_vdiname: Use pstrcpy, not strncpy, when the destination
buffer must be NUL-terminated.
* sd_open: Likewise, avoid buffer overrun.
* do_sd_create: Likewise.  Leave the preceding memset, since
pstrcpy does not NUL-fill, and filename needs that.
* sd_snapshot_create: Add a comment/question.
* find_vdi_name: Remove a useless memset.
* sd_snapshot_goto: Remove a useless memset.
Use pstrcpy to NUL-terminate, because find_vdi_name requires
that its vdi arg (filename parameter) be NUL-terminated.
It seems ok not to NUL-fill the buffer.
Do the same for snapid: remove useless memset-0 (instead,
zero tag[0]).  Use pstrcpy, not strncpy.
* sd_snapshot_list: Use pstrcpy, not strncpy to write
into the ->name member.  Each must be NUL-terminated.

Acked-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:36 -05:00
Jim Meyering
c2cba3d931 block: avoid buffer overrun by using pstrcpy, not strncpy
Also, use PATH_MAX, rather than the arbitrary 1024.
Using PATH_MAX is more consistent with other filename-related
variables in this file, like backing_filename and tmp_filename.

Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:36 -05:00
Jim Meyering
bfad67399b sparc: use g_strdup in place of unchecked strdup
This avoids a NULL-deref upon strdup failure.
Also update matching free to g_free.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:36 -05:00
Jim Meyering
a5cf8262e4 scsi, pci, qdev, isa-bus, sysbus: don't let *_get_fw_dev_path return NULL
Use g_strdup rather than strdup, because the sole caller
(qdev_get_fw_dev_path_helper) assumes it gets non-NULL, and dereferences
it.  Besides, in that caller, the allocated buffer is already freed with
g_free, so it's better to allocate with a matching g_strdup.

In one case, (scsi-bus.c) it was trivial, so I replaced an snprintf+
g_strdup combination with an equivalent g_strdup_printf use.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-05 07:58:36 -05:00
Anthony Liguori
a14c74928b Merge remote-tracking branch 'sstabellini/xen-2012-10-03' into staging
* sstabellini/xen-2012-10-03:
  xen: Set the vram dirty when an error occur.
  exec, memory: Call to xen_modified_memory.
  exec: Introduce helper to set dirty flags.
  xen: Introduce xen_modified_memory.
  QMP, Introduce xen-set-global-dirty-log command.
  qemu/xen: Add 64 bits big bar support on qemu
  xen: Fix, no unplug of pt device by platform device.
2012-10-04 19:56:26 -05:00
Anthony Liguori
05d4f2f2ca Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (30 commits)
  qemu-iotests: add tests for streaming error handling
  qemu-iotests: map underscore to dash in QMP argument names
  blkdebug: process all set_state rules in the old state
  stream: add on-error argument
  block: introduce block job error
  iostatus: reorganize io error code
  iostatus: change is_read to a bool
  iostatus: move BlockdevOnError declaration to QAPI
  iostatus: rename BlockErrorAction, BlockQMPEventAction
  qemu-iotests: add test for pausing a streaming operation
  qmp: add block-job-pause and block-job-resume
  block: add support for job pause/resume
  qmp: add 'busy' member to BlockJobInfo
  block: add block_job_query
  block: move job APIs to separate files
  block: fix documentation of block_job_cancel_sync
  qerror/block: introduce QERR_BLOCK_JOB_NOT_ACTIVE
  qemu-iotests: add initial tests for live block commit
  QAPI: add command for live block commit, 'block-commit'
  block: helper function, to find the base image of a chain
  ...
2012-10-04 19:53:50 -05:00
Anthony Liguori
97f3461555 Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp:
  block: live snapshot documentation tweaks
  input: index_from_key(): drop unused code
  qmp: qmp_send_key(): accept key codes in hex
  input: qmp_send_key(): simplify
  hmp: dump-guest-memory: hardcode protocol argument to "file:"
  qmp: dump-guest-memory: don't spin if non-blocking fd would block
  qmp: dump-guest-memory: improve schema doc (again)
  qapi: convert add_client
  monitor: add Error * argument to monitor_get_fd
  pci-assign: use monitor_handle_fd_param
  qapi: add "unix" to the set of reserved words
  qapi: do not protect enum values from namespace pollution
  Add qemu-ga-client script
  Support settimeout in QEMUMonitorProtocol
  Make negotiation optional in QEMUMonitorProtocol
2012-10-04 19:52:09 -05:00