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2014-02-21block: Add reference parameter to bdrv_open()Max Reitz10-27/+61
Allow bdrv_open() to handle references to existing block devices just as bdrv_file_open() is already capable of. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-02-21block: Change BDS parameter of bdrv_open() to **Max Reitz12-57/+73
Make bdrv_open() take a pointer to a BDS pointer, similarly to bdrv_file_open(). If a pointer to a NULL pointer is given, bdrv_open() will create a new BDS with an empty name; if the BDS pointer is not NULL, that existing BDS will be reused (in the same way as bdrv_open() already did). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-02-21block: Fix bdrv_is_first_non_filter()Kevin Wolf1-5/+1
Consider top level BlockDriverStates as well. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Tested-by: Benoit Canet <benoit@irqsave.net>
2014-02-21qcow2: Set zero flag for discarded clustersKevin Wolf2-6/+34
Instead of making the backing file contents visible again after a discard request, set the zero flag if possible (i.e. on version >= 3). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-02-21Merge remote-tracking branch ↵Peter Maydell1-33/+26
'remotes/stefanha/tags/qtest-monitor-process-pull-request' into staging qtest resource cleanup pull request # gpg: Signature made Wed 19 Feb 2014 14:46:34 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # 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: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/qtest-monitor-process-pull-request: qtest: kill QEMU process on g_assert() failure qtest: make QEMU our direct child process qtest: drop unused child_pid field Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-21Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell9-65/+219
into staging Tracing pull request # gpg: Signature made Wed 19 Feb 2014 15:42:20 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # 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: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/tracing-pull-request: trace-events: Fix typo in "offset" Add ust generated files to .gitignore Update documentation for LTTng ust tracing Adapt Makefiles to the new LTTng ust interface Modified the tracetool framework for LTTng 2.x Fix configure script for LTTng 2.x Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-21Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell1-0/+2
This fixes a target-i386 emulation regression # gpg: Signature made Wed 19 Feb 2014 15:42:12 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: target-i386: Fix I/O bitmap checks for in/out Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-21Merge remote-tracking branch 'remotes/riku/linux-user-for-upstream' into stagingPeter Maydell21-13/+136
* remotes/riku/linux-user-for-upstream: linux-user: Fix error handling in target_to_host_semarray() linux-user: Implement BLKPG ioctl linux-user: Fix error handling in lock_iovec() linux-user/signal.c: Don't pass sigaction uninitialised sa_flags linux-user/elfload.c: Avoid calling g_free() on uninitialized data linux-user: sync syscall numbers upto 3.13 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-21tcg/i386: Fix build for systems without working cpuid.h (MacOSX, Win32)Peter Maydell2-2/+15
Win32 doesn't have a cpuid.h, and MacOSX may have one but without the __cpuid() function we use, which means that commit 9d2eec20 broke the build for those platforms. Fix this by tightening up our configure cpuid.h check to test that the functions we need are present, and adding some missing #ifdef guards in tcg/i386/tcg-target.c. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-02-20Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-3' into stagingPeter Maydell14-70/+77
- xhci improvements and fixes. - uhci bugfix. - cleanups. # gpg: Signature made Tue 18 Feb 2014 15:48:10 GMT 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-3: xhci: use DPRINTF() instead of fprintf(stderr, ...) xhci: switch debug printf to tracepoint xhci iso: allow for some latency xhci iso: fix time calculation uhci: invalidate queue on device address changes xhci: fix overflow in usb_xhci_post_load usb: Remove magic constants from device bmAttributes Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-20Merge remote-tracking branch 'remotes/rth/tcg-next' into stagingPeter Maydell6-66/+414
* remotes/rth/tcg-next: tcg/i386: Use SHLX/SHRX/SARX instructions tcg/i386: Use ANDN instruction tcg/i386: Add tcg_out_vex_modrm tcg/i386: Move TCG_CT_CONST_* to tcg-target.c disas/i386: Disassemble ANDN/SHLX/SHRX/SHAX tcg/optimize: Add more identity simplifications tcg/optimize: Optmize ANDC X,Y,Y to MOV X,0 tcg/optimize: Simply some logical ops to NOT tcg/optimize: Handle known-zeros masks for ANDC tcg/optimize: add known-zero bits compute for load ops tcg/optimize: improve known-zero bits for 32-bit ops tcg/optimize: fix known-zero bits optimization tcg/optimize: fix known-zero bits for right shift ops tcg-arm: The shift count of op_rotl_i32 is in args[2] not args[1]. TCG: Fix 32-bit host allocation typo Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-20Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' ↵Peter Maydell124-863/+1047
into staging QOM infrastructure fixes and device conversions * QTest cleanups and test cases for PCI NICs * NAND fix for "info qtree" * Cleanup and extension of QOM machine tests * IndustryPack test cases and conversion to QOM realize * I2C cleanups * Cleanups of legacy qdev properties # gpg: Signature made Mon 17 Feb 2014 22:15:37 GMT using RSA key ID 3E7E013F # gpg: Good signature from "Andreas Färber <afaerber@suse.de>" # gpg: aka "Andreas Färber <afaerber@suse.com>" * remotes/afaerber/tags/qom-devices-for-peter: (49 commits) qtest: Include system headers before user headers qapi: Refine human printing of sizes qdev: Use QAPI type names for properties qdev: Add enum property types to QAPI schema block: Handle "rechs" and "large" translation options qdev: Remove hex8/32/64 property types qdev: Remove most legacy printers qdev: Use human mode in "info qtree" qapi: Add human mode to StringOutputVisitor qdev: Inline qdev_prop_parse() qdev: Legacy properties are just strings qdev: Legacy properties are now read-only qdev: Remove legacy parsers for hex8/32/64 qdev: Sizes are now parsed by StringInputVisitor qapi: Add size parser to StringInputVisitor qtest: Don't segfault with invalid -qtest option ipack: Move IndustryPack out of hw/char/ ipoctal232: QOM parent field cleanup ipack: QOM parent field cleanup for IPackDevice ipack: QOM parent field cleanup for IPackBus ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-20Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell41-157/+338
* remotes/qmp-unstable/queue/qmp: monitor: Add object_add class argument completion. monitor: Add object_del id argument completion. monitor: Add device_add device argument completion. monitor: Add device_del id argument completion. qmp: expose list of supported character device backends Use error_is_set() only when necessary QMP: allow JSON dict arguments in qmp-shell hmp: migrate command (without -d) now blocks correctly Conflicts: blockdev.c [PMM: resolved trivial conflict in blockdev.c] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-19target-i386: Fix I/O bitmap checks for in/outKevin Wolf1-0/+2
Commit 1b90d56e changed the implementation of in/out imm to not assign the accessed port number to cpu_T[0] as it appeared unnecessary. However, currently gen_check_io() makes use of cpu_T[0] to implement the I/O bitmap checks, so it's in fact still used and the change broke the check, leading to #GP in legitimate cases (and probably also allowing access to ports that shouldn't be allowed). This patch reintroduces the missing assignment for these cases. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2014-02-19qtest: kill QEMU process on g_assert() failureStefan Hajnoczi1-6/+25
The QEMU process stays running if the test case fails. This patch fixes the leak by installing a SIGABRT signal handler which invokes qtest_end(). Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2014-02-19qtest: make QEMU our direct child processStefan Hajnoczi1-29/+5
qtest_init() cannot use exec*p() to launch QEMU since the exec*p() functions take an argument array while qtest_init() takes char *extra_args. Therefore we execute /bin/sh -c <command-line> and let the shell parse the argument string. This left /bin/sh as our child process and our child's child was QEMU. We still want QEMU's pid so the -pidfile option was used to let QEMU report its pid. The pidfile needs to be unlinked when the test case exits or fails. In other words, the pidfile creates a new problem for us! Simplify all this using the shell 'exec' command. It allows us to replace the /bin/sh process with QEMU. Then we no longer need to use -pidfile because we already know our fork child's pid. Note: Yes, it seems silly to exec /bin/sh when we could just exec QEMU directly. But remember qtest_init() takes a single char *extra_args command-line fragment instead of a real argv[] array, so we need /bin/sh's argument parsing behavior. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2014-02-19qtest: drop unused child_pid fieldStefan Hajnoczi1-2/+0
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2014-02-19linux-user: Fix error handling in target_to_host_semarray()Peter Maydell1-1/+6
Fix two issues in error handling in target_to_host_semarray(): * don't leak the host_array buffer if lock_user fails * return an error if malloc() fails v2: added missing * -Riku Voipio Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-19linux-user: Implement BLKPG ioctlAndreas Färber4-0/+16
Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-19trace-events: Fix typo in "offset"Kevin Wolf1-4/+4
s/offet/offset/ Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19Add ust generated files to .gitignoreMohamad Gebai1-0/+2
Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Reviewed-by: Alex Bennée <alex@bennee.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19Update documentation for LTTng ust tracingMohamad Gebai1-0/+36
Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19Adapt Makefiles to the new LTTng ust interfaceMohamad Gebai2-0/+30
Add generation of new files for LTTng ust. Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19Modified the tracetool framework for LTTng 2.xMohamad Gebai3-56/+132
* A new format is required to generate definitions for ust tracepoints. Files ust_events_h.py and ust_events_c.py define common macros, while new function ust_events_h in events.py does the actual definition of each tracepoint. * ust.py generates the new interface for calling userspace tracepoints with LTTng 2.x, replacing trace_name(args) to tracepoint(name, args). * As explained in ust_events_c.py, -Wredundant-decls gives a warning when compiling with gcc 4.7 or older. This is specific to lttng-ust so for now use a pragma clause to avoid getting a warning. Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Reviewed-by: Alex Bennée <alex@bennee.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19Fix configure script for LTTng 2.xMohamad Gebai1-5/+15
Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-18linux-user: Fix error handling in lock_iovec()Peter Maydell1-5/+7
In lock_iovec() if lock_user() failed we were doing an unlock_user but not a free(vec), which is the wrong way round. We were also assuming that free() and unlock_user() don't touch errno, which is not guaranteed. Fix both these problems. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18linux-user/signal.c: Don't pass sigaction uninitialised sa_flagsPeter Maydell1-0/+1
When forcing a fatal signal, we weren't initialising the sa_flags field in the struct sigaction we used to reset the signal handler to SIG_DFL. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18linux-user/elfload.c: Avoid calling g_free() on uninitialized dataPeter Maydell1-4/+12
Avoid calling g_free() on unintialized data in the error-handling paths in elf_core_dump() by splitting the initialization of the elf_note_info struct out of fill_note_info() so that it's always valid to call free_note_info() whether we got to the point of being able to fill_note_info() or not. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18linux-user: sync syscall numbers upto 3.13Riku Voipio15-3/+94
All others updated except unicore, which doesn't look right to begin with. Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2014-02-18xhci: use DPRINTF() instead of fprintf(stderr, ...)Gerd Hoffmann1-45/+45
So we don't spam stderr with (guest-triggerable) messages by default. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18xhci: switch debug printf to tracepointGerd Hoffmann1-3/+1
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18xhci iso: allow for some latencyGerd Hoffmann1-1/+1
Allow the scheduled transfer time be a bit behind, to compensate for latencies. Without this xhci will wait way to often for the mfindex wraparound, assuming the scheduled time is in the future just because qemu is a bit behind in processing the iso transfer requests. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18xhci iso: fix time calculationGerd Hoffmann1-2/+2
Frameid specifies frames not microframes, so we need to shift it to get the microframe index. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18uhci: invalidate queue on device address changesGerd Hoffmann1-0/+2
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18xhci: fix overflow in usb_xhci_post_loadGerd Hoffmann1-1/+1
Found by Coverity. Reported-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-18usb: Remove magic constants from device bmAttributesPantelis Koukousoulas12-18/+25
Replace magic constants in device bmAttributes with symbolic ones from Linux kernel ch9.h Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-02-17qtest: Include system headers before user headersStefan Hajnoczi7-17/+19
It is dangerous to include user headers before system headers since user macros can affect system headers. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-17monitor: Add object_add class argument completion.Hani Benhabiles1-0/+23
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17monitor: Add object_del id argument completion.Hani Benhabiles1-0/+23
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17monitor: Add device_add device argument completion.Hani Benhabiles1-0/+26
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17monitor: Add device_del id argument completion.Hani Benhabiles1-0/+23
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17qmp: expose list of supported character device backendsMartin Kletzander3-0/+82
Introduce 'query-chardev-backends' QMP command which lists all supported character device backends. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17Use error_is_set() only when necessaryMarkus Armbruster37-156/+156
error_is_set(&var) is the same as var != NULL, but it takes whole-program analysis to figure that out. Unnecessarily hard for optimizers, static checkers, and human readers. Dumb it down to obvious. Gets rid of several dozen Coverity false positives. Note that the obvious form is already used in many places. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17QMP: allow JSON dict arguments in qmp-shellStefan Hajnoczi1-0/+3
qmp-shell hides the QMP wire protocol JSON encoding from the user. Most of the time this is helpful and makes the command-line human-friendly. Some QMP commands take a dict as an argument. In order to express this we need to revert back to JSON notation. This patch allows JSON dict arguments in qmp-shell so commands like blockdev-add and nbd-server-start can be invoked: (QEMU) blockdev-add options={"driver":"file","id":"drive1",...} Note that spaces are not allowed since str.split() is used to break up the command-line arguments first. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17hmp: migrate command (without -d) now blocks correctlySoramichi AKIYAMA1-1/+2
This patch fixes a timing issue that migrate command (without -d) does not block in some cases. The original version of hmp.c:hmp_migrate_status_cb checks if the migration status is 'active' or not to detect the completion of a migration. However, if this function is executed when the migration status is stil 'setup' (the status before 'active'), migration command returns immediately even if the user does not specify -d option. Signed-off-by: Soramichi Akiyama <akiyama@nii.ac.jp> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17tcg/i386: Use SHLX/SHRX/SARX instructionsRichard Henderson1-11/+50
These three-operand shift instructions do not require the shift count to be placed into ECX. This reduces the number of mov insns required, with the mere addition of a new register constraint. Don't attempt to get rid of the matching constraint, as that's impossible to manipulate with just a new constraint. In addition, constant shifts still need the matching constraint. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-17tcg/i386: Use ANDN instructionRichard Henderson2-13/+45
Note that the optimizer cannot simplify ANDC X,Y,C to AND X,Y,~C so we must handle constants in the implementation of andc. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-17tcg/i386: Add tcg_out_vex_modrmRichard Henderson1-3/+38
Prepare for emitting BMI insns which require VEX encoding. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-17tcg/i386: Move TCG_CT_CONST_* to tcg-target.cRichard Henderson2-3/+4
These are not needed by users of tcg-target.h. No need to recompile when we adjust them. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-02-17disas/i386: Disassemble ANDN/SHLX/SHRX/SHAXRichard Henderson1-14/+132
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>