sdk/emulator/qemu.git
10 years agovirtfs-proxy-helper: fix call to accept
Tim Comer [Sat, 19 Apr 2014 17:39:57 +0000 (13:39 -0400)]
virtfs-proxy-helper: fix call to accept

The current code calls accept() without initializing the size parameter
which means the accept call might write too much to the stack.

URL: https://bugs.gentoo.org/486714
Signed-off-by: Tim Comer <comer0@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agonet/net.c: remove unnecessary semicolon
Igor Ryzhov [Wed, 16 Apr 2014 13:43:07 +0000 (17:43 +0400)]
net/net.c: remove unnecessary semicolon

Signed-off-by: Igor Ryzhov <iryzhov@arccn.ru>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoAdd QEMU logo (SVG file)
Stefan Weil [Thu, 17 Apr 2014 20:31:13 +0000 (22:31 +0200)]
Add QEMU logo (SVG file)

The "Q" of the logo is already included in pc-bios/qemu_logo_no_text.svg.

This file now adds the complete logo as it was designed by Benoît Canet.
Benoît licensed it under CC-BY 3.0, see
http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg02865.html.

Unneeded borders from Benoît's original logo were removed,
and metadata (license, author, date) was added in this version.

Cc: Benoît Canet <benoit@irqsave.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agovl: avoid closing stdout with 'writeconfig'
Chen Gang [Tue, 22 Apr 2014 01:12:34 +0000 (09:12 +0800)]
vl: avoid closing stdout with 'writeconfig'

'writeconfig' supports output to stdout (with '-'); when that happens,
we must not close stdout, or further command line options that also use
stdout will be impacted. (Although 'writeconfig' was copied from
'readconfig', the latter does not have the problem because it does not
support reading from '-')

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoxilinx: Fix typo in comment (Marvel -> Marvell)
Stefan Weil [Thu, 17 Apr 2014 17:32:42 +0000 (19:32 +0200)]
xilinx: Fix typo in comment (Marvel -> Marvell)

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agovl: Eliminate a superfluous local variable
Chen Gang [Tue, 15 Apr 2014 23:57:41 +0000 (07:57 +0800)]
vl: Eliminate a superfluous local variable

CODING_STYLE frowns upon mixing declarations and statements.  main()
has such a declaration.  Clean up by eliminating the variable.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agovl: Remove useless 'continue'
Chen Gang [Tue, 15 Apr 2014 23:56:20 +0000 (07:56 +0800)]
vl: Remove useless 'continue'

"This if else has no code between it and the end of the enclosing
while loop. This makes this continue redundant."

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agogitignore: cleanups #2
Michael Tokarev [Sun, 27 Apr 2014 11:02:26 +0000 (15:02 +0400)]
gitignore: cleanups #2

A few more cleanups for .gitignore file.
The final goal is to have only files in there which
are generated during build.  Things like .orig or
.gdbinit are definitely not generated during build.
Also, anchor a few more build-time directories.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agotests/.gitignore: Ignore test-rfifolock
Cole Robinson [Fri, 11 Apr 2014 22:23:02 +0000 (18:23 -0400)]
tests/.gitignore: Ignore test-rfifolock

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agomove test-* from .gitignore to tests/.gitignore
Laszlo Ersek [Fri, 11 Apr 2014 22:23:01 +0000 (18:23 -0400)]
move test-* from .gitignore to tests/.gitignore

Also sort the test-* entries in the latter.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoconfigure: Improve help behavior
Fam Zheng [Fri, 18 Apr 2014 06:55:36 +0000 (14:55 +0800)]
configure: Improve help behavior

Old:
There are two paths to show help and exit 1, one is with "-h" or
"--help", one is with invalid options.

New:
Show help and exit 0 for --help.
On invalid option, don't show the long help and bury the early "ERROR:"
line, just give a message pointing to --help.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agovl: convert -m to QemuOpts
Igor Mammedov [Wed, 27 Nov 2013 00:27:35 +0000 (01:27 +0100)]
vl: convert -m to QemuOpts

Adds option to -m
 "size" - startup memory amount

For compatibility with legacy CLI if suffix-less number is passed,
it assumes amount in Mb.

Otherwise user is free to use suffixed number using suffixes b,k/K,M,G

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoqemu-option: introduce qemu_find_opts_singleton
Paolo Bonzini [Thu, 6 Mar 2014 09:39:24 +0000 (10:39 +0100)]
qemu-option: introduce qemu_find_opts_singleton

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agomisc: Use cpu_physical_memory_read and cpu_physical_memory_write
Stefan Weil [Mon, 7 Apr 2014 18:28:23 +0000 (20:28 +0200)]
misc: Use cpu_physical_memory_read and cpu_physical_memory_write

These functions don't need type casts (as does cpu_physical_memory_rw)
and also make the code better readable.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoMerge remote-tracking branch 'remotes/rth/tags/tgt-axp-pull-20140424' into staging
Peter Maydell [Fri, 25 Apr 2014 12:25:22 +0000 (13:25 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/tgt-axp-pull-20140424' into staging

target-alpha queue pull for 20140424

# gpg: Signature made Thu 24 Apr 2014 20:44:23 BST using RSA key ID 4DD0279B
# gpg: Can't check signature: public key not found

* remotes/rth/tags/tgt-axp-pull-20140424: (40 commits)
  target-alpha: Remove cpu_unique, cpu_sysval, cpu_usp
  target-alpha: Tidy alpha_translate_init
  target-alpha: Don't issue goto_tb under singlestep
  target-alpha: Use non-local temps for zero/sink
  target-alpha: Use extract to get insn fields
  target-alpha: Convert mfpr/mtpr to source/sink
  target-alpha: Convert gen_cpys et al to source/sink
  target-alpha: Convert gen_fcvtlq/ql to source/sink
  target-alpha: Convert gen_fcmov to source/sink
  target-alpha: Convert gen_bcond to source/sink
  target-alpha: Convert most ieee insns to source/sink
  target-alpha: Convert gen_ieee_input to source/sink
  target-alpha: Convert MVIOP2 to source/sink
  target-alpha: Convert ARITH3 to source/sink
  target-alpha: Convert FARITH3 to source/sink
  target-alpha: Convert FARITH2 to source/sink
  target-alpha: Convert gen_zap/not to source/sink
  target-alpha: Convert gen_ins_h/l to source/sink
  target-alpha: Convert gen_ext_h/l to source/sink
  target-alpha: Convert gen_msk_h/l to source/sink
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Peter Maydell [Fri, 25 Apr 2014 11:22:37 +0000 (12:22 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches

# gpg: Signature made Wed 23 Apr 2014 11:02:29 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  block/cloop: use PRIu32 format specifier for uint32_t
  vmdk: Fix "%x" to PRIx32 in format strings for cid
  qemu-img: Improve error messages
  qemu-iotests: Check common namespace for id and node-name
  block: Catch duplicate IDs in bdrv_new()
  qemu-img: Avoid duplicate block device IDs
  block: Add errp to bdrv_new()
  convert fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()
  block: Remove -errno return value from bdrv_assign_node_name
  curl: Replaced old error handling with error reporting API.
  block: Handle error of bdrv_getlength in bdrv_create_dirty_bitmap
  vmdk: Fix %d and %lld to PRI* in format strings
  block: Check bdrv_getlength() return value in bdrv_make_zero()
  block: Catch integer overflow in bdrv_rw_co()
  block: Limit size to INT_MAX in bdrv_check_byte_request()
  block: Fix nb_sectors check in bdrv_check_byte_request()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/kraxel/tags/pull-usb-5' into staging
Peter Maydell [Thu, 24 Apr 2014 15:16:57 +0000 (16:16 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-5' into staging

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: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/rth/tags/tcg-next-20140422' into staging
Peter Maydell [Thu, 24 Apr 2014 14:24:51 +0000 (15:24 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/tcg-next-20140422' into staging

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: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/rth/tags/tcg-ia64-pull-20140421' into staging
Peter Maydell [Thu, 24 Apr 2014 13:14:51 +0000 (14:14 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/tcg-ia64-pull-20140421' into staging

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: Peter Maydell <peter.maydell@linaro.org>
10 years agoMerge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-04-18' into staging
Peter Maydell [Thu, 24 Apr 2014 12:22:16 +0000 (13:22 +0100)]
Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-04-18' into staging

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: Peter Maydell <peter.maydell@linaro.org>
10 years agoblock/cloop: use PRIu32 format specifier for uint32_t
Stefan Hajnoczi [Wed, 23 Apr 2014 08:05:20 +0000 (10:05 +0200)]
block/cloop: use PRIu32 format specifier for uint32_t

PRIu32 is the format string specifier for uint32_t, let's use it.
Variables ->block_size, ->n_blocks, and i are all uint32_t.

Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agousb: mtp filesharing
Gerd Hoffmann [Thu, 18 Oct 2012 08:26:09 +0000 (10:26 +0200)]
usb: mtp filesharing

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: Gerd Hoffmann <kraxel@redhat.com>
10 years agovmdk: Fix "%x" to PRIx32 in format strings for cid
Fam Zheng [Thu, 17 Apr 2014 10:43:53 +0000 (18:43 +0800)]
vmdk: Fix "%x" to PRIx32 in format strings for cid

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agoqemu-img: Improve error messages
Fam Zheng [Tue, 22 Apr 2014 05:36:11 +0000 (13:36 +0800)]
qemu-img: Improve error messages

Previously, when there is a user error in argv parsing, qemu-img prints
help text and exits.

Add an error_exit function to print a helpful error message and a hint
to run 'qemu-img --help' for more information.

As a bonus, "qemu-img <cmd> --help" now has a more reasonable exit code
0.

In the future the help text should be split by sub command, and only
print the information for the specified command.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agousb: add CompatibleID support to msos
Gerd Hoffmann [Tue, 18 Mar 2014 10:01:50 +0000 (11:01 +0100)]
usb: add CompatibleID support to msos

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
10 years agoqemu-iotests: Check common namespace for id and node-name
Kevin Wolf [Thu, 17 Apr 2014 11:40:30 +0000 (13:40 +0200)]
qemu-iotests: Check common namespace for id and node-name

A name that is taken by an ID can't be taken by a node-name at the same
time. Check that conflicts are correctly detected.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
10 years agoblock: Catch duplicate IDs in bdrv_new()
Kevin Wolf [Thu, 17 Apr 2014 11:27:05 +0000 (13:27 +0200)]
block: Catch duplicate IDs in bdrv_new()

Since commit f298d071, block devices added with blockdev-add don't have
a QemuOpts around in dinfo->opts. Consequently, we can't rely any more
on QemuOpts catching duplicate IDs for block devices.

This patch adds a new check for duplicate IDs to bdrv_new(), and moves
the existing check that the ID isn't already taken for a node-name there
as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
10 years agoqemu-img: Avoid duplicate block device IDs
Kevin Wolf [Thu, 17 Apr 2014 14:57:13 +0000 (16:57 +0200)]
qemu-img: Avoid duplicate block device IDs

qemu-img used to use "image" as ID for all block devices. This means
that e.g. img_convert() ended up with potentially multiple source images
and one target image, all with the same ID. The next patch will catch
this and fail to open the block device.

This patch makes sure that qemu-img uses meaningful unique IDs for the
block devices it uses.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
10 years agoblock: Add errp to bdrv_new()
Kevin Wolf [Thu, 17 Apr 2014 11:16:01 +0000 (13:16 +0200)]
block: Add errp to bdrv_new()

This patch adds an errp parameter to bdrv_new() and updates all its
callers. The next patches will make use of this in order to check for
duplicate IDs. Most of the callers know that their ID is fine, so they
can simply assert that there is no error.

Behaviour doesn't change with this patch yet as bdrv_new() doesn't
actually assign errors to errp.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
10 years agoconvert fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()
Aakriti Gupta [Sat, 15 Mar 2014 09:35:23 +0000 (15:05 +0530)]
convert fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()

This patch converts fprintf() calls to error_setg() in block/qed.c:bdrv_qed_create()
(error_setg() is part of error reporting API in include/qapi/error.h)

Signed-off-by: Aakriti Gupta <aakritty@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agoblock: Remove -errno return value from bdrv_assign_node_name
Kevin Wolf [Fri, 24 Jan 2014 13:11:52 +0000 (14:11 +0100)]
block: Remove -errno return value from bdrv_assign_node_name

It takes an errp argument. That's enough for error handling.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agocurl: Replaced old error handling with error reporting API.
Maria Kustova [Tue, 18 Mar 2014 05:59:18 +0000 (09:59 +0400)]
curl: Replaced old error handling with error reporting API.

Signed-off-by: Maria Kustova <maria.k@catit.be>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agoblock: Handle error of bdrv_getlength in bdrv_create_dirty_bitmap
Fam Zheng [Wed, 16 Apr 2014 01:34:30 +0000 (09:34 +0800)]
block: Handle error of bdrv_getlength in bdrv_create_dirty_bitmap

bdrv_getlength could fail, check the return value before using it.
Return NULL and set errno if it fails. Callers are updated to handle
the error case.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agovmdk: Fix %d and %lld to PRI* in format strings
Fam Zheng [Thu, 17 Apr 2014 03:34:37 +0000 (11:34 +0800)]
vmdk: Fix %d and %lld to PRI* in format strings

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agoblock: Check bdrv_getlength() return value in bdrv_make_zero()
Kevin Wolf [Mon, 14 Apr 2014 15:03:34 +0000 (17:03 +0200)]
block: Check bdrv_getlength() return value in bdrv_make_zero()

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
10 years agoblock: Catch integer overflow in bdrv_rw_co()
Kevin Wolf [Mon, 14 Apr 2014 13:39:36 +0000 (15:39 +0200)]
block: Catch integer overflow in bdrv_rw_co()

Insanely large requests could cause an integer overflow in
bdrv_rw_co() while converting sectors to bytes. This patch catches the
problem and returns an error (if we hadn't overflown the integer here,
bdrv_check_byte_request() would have rejected the request, so we're not
breaking anything that was supposed to work before).

We actually do have a test case that triggers behaviour where we
accidentally let such a request pass, so that it would return success,
but read 0 bytes instead of the requested 4 GB. It fails now like it
should.

If the vdi block driver wants to be able to deal with huge images, it
can't read the whole block bitmap at once into memory like it does
today, but needs to use a metadata cache like qcow2 does.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
10 years agoblock: Limit size to INT_MAX in bdrv_check_byte_request()
Kevin Wolf [Mon, 14 Apr 2014 12:48:16 +0000 (14:48 +0200)]
block: Limit size to INT_MAX in bdrv_check_byte_request()

Commit 8f4754ed intended to protect against integer overflow bugs in
block drivers by making sure that a single request that is passed to
drivers is no longer than INT_MAX bytes.

However, meanwhile there are some callers that don't use that code path
any more but call bdrv_check_byte_request() directy, so let's add a
check there as well.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
10 years agoblock: Fix nb_sectors check in bdrv_check_byte_request()
Kevin Wolf [Mon, 14 Apr 2014 12:47:14 +0000 (14:47 +0200)]
block: Fix nb_sectors check in bdrv_check_byte_request()

nb_sectors is signed, check for negative values.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
10 years agotcg: Use HOST_WORDS_BIGENDIAN
Richard Henderson [Mon, 31 Mar 2014 21:09:13 +0000 (14:09 -0700)]
tcg: Use HOST_WORDS_BIGENDIAN

Instead of rolling a local TCG_TARGET_WORDS_BIGENDIAN.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Fix fallback from muls2_i64 to mulu2_i64
Richard Henderson [Wed, 26 Mar 2014 18:09:44 +0000 (11:09 -0700)]
tcg: Fix fallback from muls2_i64 to mulu2_i64

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: Richard Henderson <rth@twiddle.net>
10 years agotcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32
Richard Henderson [Wed, 26 Mar 2014 18:01:30 +0000 (11:01 -0700)]
tcg: Use tcg_gen_mulu2_i32 in tcg_gen_muls2_i32

Rather than hard-coding use of mulu2_i32, allow muluh_i32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Relax requirement for mulu2_i32 on 32-bit hosts
Richard Henderson [Wed, 26 Mar 2014 17:59:14 +0000 (10:59 -0700)]
tcg: Relax requirement for mulu2_i32 on 32-bit hosts

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: Richard Henderson <rth@twiddle.net>
10 years agotcg-s390: Remove W constraint
Richard Henderson [Mon, 31 Mar 2014 06:25:26 +0000 (02:25 -0400)]
tcg-s390: Remove W constraint

Now redundant with the type parameter to tcg_target_const_match.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-sparc: Use the type parameter to tcg_target_const_match
Richard Henderson [Mon, 31 Mar 2014 05:27:35 +0000 (22:27 -0700)]
tcg-sparc: Use the type parameter to tcg_target_const_match

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ppc64: Use the type parameter to tcg_target_const_match
Richard Henderson [Mon, 31 Mar 2014 05:07:27 +0000 (22:07 -0700)]
tcg-ppc64: Use the type parameter to tcg_target_const_match

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-aarch64: Remove w constraint
Richard Henderson [Mon, 31 Mar 2014 04:26:34 +0000 (21:26 -0700)]
tcg-aarch64: Remove w constraint

Now redundant with the type parameter to tcg_target_const_match.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Add TCGType parameter to tcg_target_const_match
Richard Henderson [Mon, 31 Mar 2014 04:22:11 +0000 (21:22 -0700)]
tcg: Add TCGType parameter to tcg_target_const_match

Most 64-bit targets need to be able to ignore the high bits
of a TCG_TYPE_I32 value.

Suggested-by: Stuart Brady <sdb@zubnet.me.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Fix out of range shift in deposit optimizations
Richard Henderson [Tue, 18 Mar 2014 21:23:52 +0000 (14:23 -0700)]
tcg: Fix out of range shift in deposit optimizations

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: Richard Henderson <rth@twiddle.net>
10 years agotci: Mask shift counts to avoid undefined behavior
Richard Henderson [Tue, 18 Mar 2014 15:44:05 +0000 (08:44 -0700)]
tci: Mask shift counts to avoid undefined behavior

TCG now requires unspecified behavior rather than a potential crash,
bring the C shift within the letter of the law.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Mask shift quantities while folding
Richard Henderson [Tue, 18 Mar 2014 14:45:39 +0000 (07:45 -0700)]
tcg: Mask shift quantities while folding

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: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Use "unspecified behavior" for shifts
Richard Henderson [Tue, 18 Mar 2014 15:21:44 +0000 (08:21 -0700)]
tcg: Use "unspecified behavior" for shifts

Change the definition such that shifts are not allowed to crash
for any input.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg: Fix warning (1 bit signed bitfield entry) and replace int by bool
Stefan Weil [Fri, 21 Feb 2014 17:18:34 +0000 (18:18 +0100)]
tcg: Fix warning (1 bit signed bitfield entry) and replace int by bool

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: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agoFix grammar in comment
Stefan Weil [Mon, 7 Apr 2014 17:42:59 +0000 (19:42 +0200)]
Fix grammar in comment

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agodoc: grammify "allows to"
Michael Tokarev [Mon, 7 Apr 2014 09:34:58 +0000 (13:34 +0400)]
doc: grammify "allows to"

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: Michael Tokarev <mjt@tls.msk.ru>
10 years agoconfigure: Remove redundant message for -Werror
Stefan Weil [Fri, 14 Mar 2014 20:11:13 +0000 (21:11 +0100)]
configure: Remove redundant message for -Werror

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: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoscripts: add sample model file for Coverity Scan
Paolo Bonzini [Wed, 26 Mar 2014 11:45:49 +0000 (12:45 +0100)]
scripts: add sample model file for Coverity Scan

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: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoxbzrle.c: Avoid undefined behaviour with signed arithmetic
Peter Maydell [Fri, 28 Mar 2014 15:12:57 +0000 (15:12 +0000)]
xbzrle.c: Avoid undefined behaviour with signed arithmetic

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: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoint128.h: Avoid undefined behaviours involving signed arithmetic
Peter Maydell [Fri, 28 Mar 2014 15:12:56 +0000 (15:12 +0000)]
int128.h: Avoid undefined behaviours involving signed arithmetic

Add casts when we're performing arithmetic on the .hi parts of an
Int128, to avoid undefined behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agohw/ide/ahci.c: Avoid shift left into sign bit
Peter Maydell [Fri, 28 Mar 2014 15:12:55 +0000 (15:12 +0000)]
hw/ide/ahci.c: Avoid shift left into sign bit

Add U suffix to avoid shifting left into the sign bit, which
is undefined behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agonet: Report error when device / hub combo is not found.
Hani Benhabiles [Mon, 31 Mar 2014 23:05:14 +0000 (00:05 +0100)]
net: Report error when device / hub combo is not found.

Also convert nearby monitor_printf() call to error_report().

Signed-off-by: Hani Benhabiles <hani@linux.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoconfigure: Fix indentation of help for --enable/disable-debug-info
Peter Maydell [Mon, 31 Mar 2014 18:51:55 +0000 (19:51 +0100)]
configure: Fix indentation of help for --enable/disable-debug-info

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: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agoqga: trivial fix for unclear documentation of guest-set-time
Amos Kong [Fri, 4 Apr 2014 15:25:02 +0000 (23:25 +0800)]
qga: trivial fix for unclear documentation of guest-set-time

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: Amos Kong <akong@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agovl: Report accelerator not supported for target more nicely
Chen Gang [Fri, 4 Apr 2014 09:39:33 +0000 (17:39 +0800)]
vl: Report accelerator not supported for target more nicely

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: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
10 years agotcg-ia64: Convert to new ldst opcodes
Richard Henderson [Tue, 4 Mar 2014 17:35:30 +0000 (09:35 -0800)]
tcg-ia64: Convert to new ldst opcodes

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Move part of softmmu slow path out of line
Richard Henderson [Fri, 6 Sep 2013 06:06:59 +0000 (02:06 -0400)]
tcg-ia64: Move part of softmmu slow path out of line

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Convert to new ldst helpers
Richard Henderson [Fri, 6 Sep 2013 04:38:52 +0000 (00:38 -0400)]
tcg-ia64: Convert to new ldst helpers

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: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Reduce code duplication in tcg_out_qemu_ld
Richard Henderson [Fri, 6 Sep 2013 00:50:54 +0000 (20:50 -0400)]
tcg-ia64: Reduce code duplication in tcg_out_qemu_ld

The only differences were in the bswap insns emitted.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Move tlb addend load into tlb read
Richard Henderson [Fri, 6 Sep 2013 00:32:49 +0000 (20:32 -0400)]
tcg-ia64: Move tlb addend load into tlb read

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Move bswap for store into tlb load
Richard Henderson [Fri, 6 Sep 2013 00:02:51 +0000 (20:02 -0400)]
tcg-ia64: Move bswap for store into tlb load

Saving at least two cycles per store, and cleaning up the code.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Re-bundle the tlb load
Richard Henderson [Thu, 5 Sep 2013 23:46:56 +0000 (19:46 -0400)]
tcg-ia64: Re-bundle the tlb load

This sequencing requires 5 stop bits instead of 6, and has room left
over to pre-load the tlb addend, and bswap data prior to being stored.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agotcg-ia64: Optimize small arguments to exit_tb
Richard Henderson [Thu, 31 Oct 2013 19:19:23 +0000 (15:19 -0400)]
tcg-ia64: Optimize small arguments to exit_tb

Saves one bundle for the common case of exit_tb 0.

Signed-off-by: Richard Henderson <rth@twiddle.net>
10 years agoMerge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140417-1' into...
Peter Maydell [Thu, 17 Apr 2014 20:37:26 +0000 (21:37 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140417-1' into staging

target-arm queue:
 * AArch64 system mode support; this is all the CPU emulation code
   but not the virt board support
 * cadence_ttc match register bugfix
 * Allwinner A10 PIC, PIT and ethernet fixes
   [with update to avoid duplicate typedef]
 * zynq-slcr rewrite
 * cadence_gem bugfix
 * fix for SMLALD/SMLSLD insn in A32
 * fix for SQXTUN in A64

# gpg: Signature made Thu 17 Apr 2014 21:35:57 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140417-1: (51 commits)
  target-arm: A64: fix unallocated test of scalar SQXTUN
  arm: translate.c: Fix smlald Instruction
  net: cadence_gem: Make phy respond to broadcast
  misc: zynq_slcr: Make DB_PRINTs always compile
  misc: zynq_slcr: Convert SBD::init to object init
  misc: zynq-slcr: Rewrite
  allwinner-emac: update irq status after writes to interrupt registers
  allwinner-emac: set autonegotiation complete bit on link up
  allwinner-a10-pit: implement prescaler and source selection
  allwinner-a10-pit: use level triggered interrupts
  allwinner-a10-pit: avoid generation of spurious interrupts
  allwinner-a10-pic: fix behaviour of pending register
  allwinner-a10-pic: set vector address when an interrupt is pending
  timer: cadence_ttc: Fix match register write logic
  target-arm/gdbstub64.c: remove useless 'break' statement.
  target-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32
  target-arm: Handle the CPU being in AArch32 mode in the AArch64 set_pc
  target-arm: Make Cortex-A15 CBAR read-only
  target-arm: Implement CBAR for Cortex-A57
  target-arm: Implement Cortex-A57 implementation-defined system registers
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotarget-arm: A64: fix unallocated test of scalar SQXTUN
Alex Bennée [Wed, 16 Apr 2014 11:29:39 +0000 (12:29 +0100)]
target-arm: A64: fix unallocated test of scalar SQXTUN

The test for the U bit was incorrectly inverted in the scalar case of SQXTUN.
This doesn't affect the vector case as the U bit is used to select XTN(2).

Reported-by: Hao Liu <hao.liu@arm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoarm: translate.c: Fix smlald Instruction
Peter Crosthwaite [Thu, 17 Apr 2014 03:20:52 +0000 (20:20 -0700)]
arm: translate.c: Fix smlald Instruction

The smlald (and probably smlsld) instruction was doing incorrect sign
extensions of the operands amongst 64bit result calculation. The
instruction psuedo-code is:

 operand2 = if m_swap then ROR(R[m],16) else R[m];
 product1 = SInt(R[n]<15:0>) * SInt(operand2<15:0>);
 product2 = SInt(R[n]<31:16>) * SInt(operand2<31:16>);
 result = product1 + product2 + SInt(R[dHi]:R[dLo]);
 R[dHi] = result<63:32>;
 R[dLo] = result<31:0>;

The result calculation should be done in 64 bit arithmetic, and hence
product1 and product2 should be sign extended to 64b before calculation.

The current implementation was adding product1 and product2 together
then sign-extending the intermediate result leading to false negatives.

E.G. if product1 = product2 = 0x4000000, their sum = 0x80000000, which
will be incorrectly interpreted as -ve on sign extension.

We fix by doing the 64b extensions on both product1 and product2 before
any addition/subtraction happens.

We also fix where we were possibly incorrectly setting the Q saturation
flag for SMLSLD, which the ARM ARM specifically says is not set.

Reported-by: Christina Smith <christina.smith@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 2cddb6f5a15be4ab8d2160f3499d128ae93d304d.1397704570.git.peter.crosthwaite@xilinx.com
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agonet: cadence_gem: Make phy respond to broadcast
Peter Crosthwaite [Fri, 4 Apr 2014 06:55:19 +0000 (23:55 -0700)]
net: cadence_gem: Make phy respond to broadcast

Phys must respond to address 0 by specification. Implement.

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 6f4d53b04ddbfb19895bfb61a595e69f1c08859a.1396594056.git.peter.crosthwaite@xilinx.com
Reviewed-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agomisc: zynq_slcr: Make DB_PRINTs always compile
Peter Crosthwaite [Tue, 15 Apr 2014 18:49:11 +0000 (19:49 +0100)]
misc: zynq_slcr: Make DB_PRINTs always compile

Change the DB_PRINT macro over to a regular if() rather than
conditional compilation to give constant compile testing of formats.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 942477847353c5cff5f45a228cc88c633dc012f3.1396503037.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agomisc: zynq_slcr: Convert SBD::init to object init
Peter Crosthwaite [Tue, 15 Apr 2014 18:49:11 +0000 (19:49 +0100)]
misc: zynq_slcr: Convert SBD::init to object init

To bring it up to date with styling guidelines.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 2e837af80a18216c21e73241032e048f39d78b99.1396503037.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agomisc: zynq-slcr: Rewrite
Peter Crosthwaite [Tue, 15 Apr 2014 18:49:11 +0000 (19:49 +0100)]
misc: zynq-slcr: Rewrite

Near total rewrite of this device model. It is stylistically
obsolete, has numerous coverity fails and is not up to date with latest
Xilinx documentation. Fix.

The registers are flattened into a single array. This greatly simplifies
the MMIO accessor functions.

We take the oppurtunity to update the register Macro definitions to
match the latest TRM. Xilinx has de-documented some regs hence there are
some straight deletions. We only do this however in the case or a stock
read-as-written reset-zero register. Non-zero resets are always
preserved. New register definitions are added as needed.

This all comes with a VMSD version break as the union layout from before
was a bit strange and we are better off without it.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 3aa016167b352ed224666909217137285fd3351d.1396503037.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-emac: update irq status after writes to interrupt registers
Beniamino Galvani [Tue, 25 Mar 2014 18:22:10 +0000 (19:22 +0100)]
allwinner-emac: update irq status after writes to interrupt registers

The irq line status must be updated after writes to the INT_CTL and
INT_STA registers.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-8-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-emac: set autonegotiation complete bit on link up
Beniamino Galvani [Tue, 25 Mar 2014 18:22:09 +0000 (19:22 +0100)]
allwinner-emac: set autonegotiation complete bit on link up

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-7-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-a10-pit: implement prescaler and source selection
Beniamino Galvani [Tue, 25 Mar 2014 18:22:08 +0000 (19:22 +0100)]
allwinner-a10-pit: implement prescaler and source selection

This implements the prescaler and source fields of the timer control
register. The source for each timer can be selected among 4 clock
inputs whose frequencies are set through model properties.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-6-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-a10-pit: use level triggered interrupts
Beniamino Galvani [Tue, 25 Mar 2014 18:22:07 +0000 (19:22 +0100)]
allwinner-a10-pit: use level triggered interrupts

Convert the interrupt generation logic to the use of level triggered
interrupts.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-5-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-a10-pit: avoid generation of spurious interrupts
Beniamino Galvani [Tue, 25 Mar 2014 18:22:06 +0000 (19:22 +0100)]
allwinner-a10-pit: avoid generation of spurious interrupts

The model was generating interrupts for all enabled timers after the
expiration of one of them. Avoid this by passing explicitly the timer
index to the callback function.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Li Guang <lig.fnst@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-4-git-send-email-b.galvani@gmail.com
[PMM: avoid duplicate typedef of AwA10PITState]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-a10-pic: fix behaviour of pending register
Beniamino Galvani [Tue, 25 Mar 2014 18:22:05 +0000 (19:22 +0100)]
allwinner-a10-pic: fix behaviour of pending register

The pending register is read-only and the value returned upon a read
reflects the state of irq input pins (interrupts are level triggered).
This patch implements such behaviour.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Li Guang <lig.fnst@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1395771730-16882-3-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agoallwinner-a10-pic: set vector address when an interrupt is pending
Beniamino Galvani [Tue, 25 Mar 2014 18:22:04 +0000 (19:22 +0100)]
allwinner-a10-pic: set vector address when an interrupt is pending

This patch implements proper updating of the vector register which
should hold, according to the A10 user manual, the vector address for
the interrupt currently active on the CPU IRQ input.

Interrupt priority is not implemented at the moment and thus the first
pending interrupt is returned.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Li Guang <lig.fnst@cn.fujitsu.com>
Message-id: 1395771730-16882-2-git-send-email-b.galvani@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotimer: cadence_ttc: Fix match register write logic
Peter Crosthwaite [Tue, 1 Apr 2014 04:31:09 +0000 (21:31 -0700)]
timer: cadence_ttc: Fix match register write logic

This switch logic should not fall through. Fix.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 74147b4c017c904364955cc73107f90e6ac8ba74.1396326389.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotarget-arm/gdbstub64.c: remove useless 'break' statement.
Chen Gang [Tue, 18 Mar 2014 00:31:16 +0000 (08:31 +0800)]
target-arm/gdbstub64.c: remove useless 'break' statement.

Clean up useless 'break' statement after 'return' statement.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotarget-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32
Peter Maydell [Tue, 15 Apr 2014 18:19:15 +0000 (19:19 +0100)]
target-arm: Dump 32-bit CPU state if 64 bit CPU is in AArch32

For system mode, we may have a 64 bit CPU which is currently executing
in AArch32 state; if we're dumping CPU state to the logs we should
therefore show the correct state for the current execution state,
rather than hardwiring it based on the type of the CPU. For consistency
with how we handle translation, we leave the 32 bit dump function
as the default, and have it hand off control to the 64 bit dump code
if we're in AArch64 mode.

Reported-by: Rob Herring <rob.herring@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10 years agotarget-arm: Handle the CPU being in AArch32 mode in the AArch64 set_pc
Peter Maydell [Tue, 15 Apr 2014 18:18:49 +0000 (19:18 +0100)]
target-arm: Handle the CPU being in AArch32 mode in the AArch64 set_pc

The AArch64 implementation of the set_pc method needs to be updated to
handle the possibility that the CPU is in AArch32 mode; otherwise there
are weird crashes when doing interprocessing in system emulation mode
when an interrupt occurs and we fail to resynchronize the 32-bit PC
with the TB we need to execute next.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Make Cortex-A15 CBAR read-only
Peter Maydell [Tue, 15 Apr 2014 18:18:49 +0000 (19:18 +0100)]
target-arm: Make Cortex-A15 CBAR read-only

The Cortex-A15's CBAR register is actually read-only (unlike that
of the Cortex-A9). Correct our model to match the hardware.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement CBAR for Cortex-A57
Peter Maydell [Tue, 15 Apr 2014 18:18:49 +0000 (19:18 +0100)]
target-arm: Implement CBAR for Cortex-A57

The Cortex-A57, like most of the other ARM cores, has a CBAR
register which defines the base address of the per-CPU
peripherals. However it has a 64-bit view as well as a
32-bit view; expand the QOM reset-cbar property from UINT32
to UINT64 so this can be specified, and implement the
32-bit and 64-bit views of a 64-bit CBAR.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement Cortex-A57 implementation-defined system registers
Peter Maydell [Tue, 15 Apr 2014 18:18:48 +0000 (19:18 +0100)]
target-arm: Implement Cortex-A57 implementation-defined system registers

Implement a subset of the Cortex-A57's implementation defined system
registers. We provide RAZ/WI or reads-as-constant/writes-ignored
implementations of the various control and syndrome reigsters.
We do not implement registers which provide direct access to and
manipulation of the L1 cache, since QEMU doesn't implement caches.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement RVBAR register
Peter Maydell [Tue, 15 Apr 2014 18:18:48 +0000 (19:18 +0100)]
target-arm: Implement RVBAR register

Implement the AArch64 RVBAR register, which indicates the reset
address. Since the reset address is implementation defined and
usually configurable by setting config signals in hardware, we
also provide a QOM property so it can be set at board level if
necessary.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement AArch64 address translation operations
Peter Maydell [Tue, 15 Apr 2014 18:18:48 +0000 (19:18 +0100)]
target-arm: Implement AArch64 address translation operations

Implement the AArch64 address translation operations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement auxiliary fault status registers
Peter Maydell [Tue, 15 Apr 2014 18:18:47 +0000 (19:18 +0100)]
target-arm: Implement auxiliary fault status registers

Implement the auxiliary fault status registers AFSR0_EL1 and
AFSR1_EL1. These are present on v7 and later, and have IMPDEF
behaviour; we choose to RAZ/WI for all cores.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Replace wildcarded cpreg definitions with precise ones for ARMv8
Peter Maydell [Tue, 15 Apr 2014 18:18:47 +0000 (19:18 +0100)]
target-arm: Replace wildcarded cpreg definitions with precise ones for ARMv8

Many of the reginfo definitions in cp_reginfo[] use CP_ANY wildcards.
This is for a combination of reasons:
 * early ARM implementations really did underdecode
 * earlier versions of QEMU underdecoded and we can't tighten
   this up because we don't know if guests really require this or not
 * implementation convenience

For ARMv8 the architecture has tightened things up and system and
coprocessor registers are always specifically decoded. We take
advantage of this opportunity for a clean break by restricting
our CP_ANY wildcarded reginfo to pre-v8 CPUs, and providing
specifically decoded versions where necessary for v8 CPUs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Don't expose wildcard ID register definitions for ARMv8
Peter Maydell [Tue, 15 Apr 2014 18:18:47 +0000 (19:18 +0100)]
target-arm: Don't expose wildcard ID register definitions for ARMv8

In ARMv8 the 32 bit coprocessor ID register space is tidied up to
remove the wildcarded aliases of the MIDR and the RAZ behaviour
for the unassigned space where crm = 3..7. Make sure we don't
expose thes wildcards for v8 cores. This means we need to have
a specific implementation for REVIDR, an IMPDEF register which
may be the same as the MIDR (and which we always implement as such).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Remove THUMB2EE feature from AArch64 'any' CPU
Peter Maydell [Tue, 15 Apr 2014 18:18:46 +0000 (19:18 +0100)]
target-arm: Remove THUMB2EE feature from AArch64 'any' CPU

The AArch64 usermode 'any' CPU type was accidentally specified
with the ARM_FEATURE_THUMB2EE bit set. This is incorrect since
ARMv8 removes Thumb2EE completely. Since we never implemented
Thumb2EE anyway having the feature bit set was fairly harmless
for user-mode, but the correct thing is to not set it at all.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement ISR_EL1 register
Peter Maydell [Tue, 15 Apr 2014 18:18:46 +0000 (19:18 +0100)]
target-arm: Implement ISR_EL1 register

Implement the ISR_EL1 register. This is actually present in
ARMv7 as well but was previously unimplemented. It is a
read-only register that indicates whether interrupts are
currently pending.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
10 years agotarget-arm: Implement AArch64 view of ACTLR
Peter Maydell [Tue, 15 Apr 2014 18:18:45 +0000 (19:18 +0100)]
target-arm: Implement AArch64 view of ACTLR

Implement the AArch64 view of the ACTLR (auxiliary control
register). Note that QEMU internally tends to call this
AUXCR for historical reasons.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>