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2016-08-08Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.7-20160808' ↵Peter Maydell
into staging ppc patch queue 2016-08-08 This batch has several last minute bug fixes to be merged for qemu-2.7. # gpg: Signature made Mon 08 Aug 2016 03:40:58 BST # gpg: using RSA key 0x6C38CACA20D9B392 # gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" # gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>" # gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392 * remotes/dgibson/tags/ppc-for-2.7-20160808: spapr: Fix undefined behaviour in spapr_tce_reset() macio: set res_count value to 0 after non-block ATAPI DMA transfers spapr: Correctly set query_hotpluggable_cpus hook based on machine version Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-08Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20160805' into stagingPeter Maydell
indirect register lowering # gpg: Signature made Fri 05 Aug 2016 17:34:53 BST # gpg: using RSA key 0xAD1270CC4DD0279B # gpg: Good signature from "Richard Henderson <rth7680@gmail.com>" # gpg: aka "Richard Henderson <rth@redhat.com>" # gpg: aka "Richard Henderson <rth@twiddle.net>" # Primary key fingerprint: 9CB1 8DDA F8E8 49AD 2AFC 16A4 AD12 70CC 4DD0 279B * remotes/rth/tags/pull-tcg-20160805: tcg: Lower indirect registers in a separate pass tcg: Require liveness analysis tcg: Include liveness info in the dumps tcg: Compress dead_temps and mem_temps into a single array tcg: Fold life data into TCGOp tcg: Reorg TCGOp chaining tcg: Compress liveness data to 16 bits Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-08error: Fix error_printf() calls lacking newlinesMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1470224274-31522-5-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08vfio: Use error_report() instead of error_printf() for errorsMarkus Armbruster
Cc: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1470224274-31522-4-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08checkpatch: Fix newline detection in error_setg() & friendsMarkus Armbruster
Commit 5d596c2's regexp assumes the error message string is the first argument. Correct for error_report(), wrong for all the others. Relax the regexp to match newline in anywhere. This might cause additional false positives. While there, update the list of error_reporting functions. Cc: Jason J. Herne <jjherne@linux.vnet.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1470224274-31522-3-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08error: Strip trailing '\n' from error string arguments (again)Markus Armbruster
Commit 9af9e0f, 6daf194d, be62a2eb and 312fd5f got rid of a bunch, but they keep coming back. checkpatch.pl tries to flag them since commit 5d596c2, but it's not very good at it. Offenders tracked down with Coccinelle script scripts/coccinelle/err-bad-newline.cocci, an updated version of the script from commit 312fd5f. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1470224274-31522-2-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08spapr: Fix undefined behaviour in spapr_tce_reset()David Gibson
When a TCE table (sPAPR IOMMU context) is in disabled state (which is true by default for the 64-bit window), it has tcet->nb_table == 0 and tcet->table == NULL. However, on system reset, spapr_tce_reset() executes, which unconditionally calls memset(tcet->table, 0, table_size); We get away with this in practice, because it's a zero length memset(), but memset() on a NULL pointer is undefined behaviour, so we should not call it in this case. Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-08-08macio: set res_count value to 0 after non-block ATAPI DMA transfersMark Cave-Ayland
res_count should be set to the number of outstanding bytes after a DBDMA request. Unfortunately this wasn't being set to zero by the non-block transfer codepath meaning drivers that checked the descriptor result for such requests (e.g reading the CDROM TOC) would assume from a non-zero result that the transfer had failed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-08-08spapr: Correctly set query_hotpluggable_cpus hook based on machine versionDavid Gibson
Prior to c8721d3 "spapr: Error out when CPU hotplug is attempted on older pseries machines", attempting to use query-hotpluggable-cpus on pseries-2.6 and earlier machine types would SEGV. That change fixed that, but due to some unexpected interactions in init order and a brown-paper-bag worthy failure to test, it accidentally disabled query-hotpluggable-cpus for all pseries machine types, including the current one which should allow it. In fact, query_hotpluggable_cpus needs to be non-NULL when and only when the dr_cpu_enabled flag in sPAPRMachineClass is set, which makes dr_cpu_enabled itself redundant. This patch removes dr_cpu_enabled, instead directly setting query_hotpluggable_cpus from the machine class_init functions, and using that to determine the availability of CPU hotplug when necessary. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-08-08ahci: fix sglist leak on retryMarc-André Lureau
ahci-test /x86_64/ahci/io/dma/lba28/retry triggers the following leak: Direct leak of 16 byte(s) in 1 object(s) allocated from: #0 0x7fc4b2a25e20 in malloc (/lib64/libasan.so.3+0xc6e20) #1 0x7fc4993bce58 in g_malloc (/lib64/libglib-2.0.so.0+0x4ee58) #2 0x556a187d4b34 in ahci_populate_sglist hw/ide/ahci.c:896 #3 0x556a187d8237 in ahci_dma_prepare_buf hw/ide/ahci.c:1367 #4 0x556a187b5a1a in ide_dma_cb hw/ide/core.c:844 #5 0x556a187d7eec in ahci_start_dma hw/ide/ahci.c:1333 #6 0x556a187b650b in ide_start_dma hw/ide/core.c:921 #7 0x556a187b61e6 in ide_sector_start_dma hw/ide/core.c:911 #8 0x556a187b9e26 in cmd_write_dma hw/ide/core.c:1486 #9 0x556a187bd519 in ide_exec_cmd hw/ide/core.c:2027 #10 0x556a187d71c5 in handle_reg_h2d_fis hw/ide/ahci.c:1204 #11 0x556a187d7681 in handle_cmd hw/ide/ahci.c:1254 #12 0x556a187d168a in check_cmd hw/ide/ahci.c:510 #13 0x556a187d0afc in ahci_port_write hw/ide/ahci.c:314 #14 0x556a187d105d in ahci_mem_write hw/ide/ahci.c:435 #15 0x556a1831d959 in memory_region_write_accessor /home/elmarco/src/qemu/memory.c:525 #16 0x556a1831dc35 in access_with_adjusted_size /home/elmarco/src/qemu/memory.c:591 #17 0x556a18323ce3 in memory_region_dispatch_write /home/elmarco/src/qemu/memory.c:1262 #18 0x556a1828cf67 in address_space_write_continue /home/elmarco/src/qemu/exec.c:2578 #19 0x556a1828d20b in address_space_write /home/elmarco/src/qemu/exec.c:2635 #20 0x556a1828d92b in address_space_rw /home/elmarco/src/qemu/exec.c:2737 #21 0x556a1828daf7 in cpu_physical_memory_rw /home/elmarco/src/qemu/exec.c:2746 #22 0x556a183068d3 in cpu_physical_memory_write /home/elmarco/src/qemu/include/exec/cpu-common.h:72 #23 0x556a18308194 in qtest_process_command /home/elmarco/src/qemu/qtest.c:382 #24 0x556a18309999 in qtest_process_inbuf /home/elmarco/src/qemu/qtest.c:573 #25 0x556a18309a4a in qtest_read /home/elmarco/src/qemu/qtest.c:585 #26 0x556a18598b85 in qemu_chr_be_write_impl /home/elmarco/src/qemu/qemu-char.c:387 #27 0x556a18598c52 in qemu_chr_be_write /home/elmarco/src/qemu/qemu-char.c:399 #28 0x556a185a2afa in tcp_chr_read /home/elmarco/src/qemu/qemu-char.c:2902 #29 0x556a18cbaf52 in qio_channel_fd_source_dispatch io/channel-watch.c:84 Follow John Snow recommendation: Everywhere else ncq_err is used, it is accompanied by a list cleanup except for ncq_cb, which is the case you are fixing here. Move the sglist destruction inside of ncq_err and then delete it from the other two locations to keep it tidy. Call dma_buf_commit in ide_dma_cb after the early return. Though, this is also a little wonky because this routine does more than clear the list, but it is at the moment the centralized "we're done with the sglist" function and none of the other side effects that occur in dma_buf_commit will interfere with the reset that occurs from ide_restart_bh, I think Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com>
2016-08-08usb: free leaking pathMarc-André Lureau
qdev_get_dev_path() returns an allocated string, free it when no longer needed. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2016-08-08usb: free USBDevice.stringsMarc-André Lureau
The list is created during instance init and further populated with usb_desc_set_string(). Clear it when unrealizing the device. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2016-08-08virtio-input: free config listMarc-André Lureau
Clear the list when finalizing. The list is created during realize with virtio_input_idstr_config() and later by further calls to virtio_input_init_config() and virtio_input_add_config(). This leak can be reproduced with device-introspect-test -p /x86_64/device/introspect/concrete. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2016-08-08qjson: free strMarc-André Lureau
Release the qstring allocated in qjson_new(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08ahci: free irqs arrayMarc-André Lureau
Each irq is referenced by the IDEBus in ide_init2(), thus we can free the no longer used array. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Acked-by: John Snow <jsnow@redhat.com>
2016-08-08char: free MuxDriver when closingMarc-André Lureau
Similarly to other chr_close callbacks, free char type specific data. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-08char: free the tcp connection data when closingMarc-André Lureau
Make sure the connection data got freed when closing the chardev, to avoid leaks. Introduce tcp_chr_free_connection() to clean all connection related data, and move some tcp_chr_close() clean-ups there. (while at it, set write_msgfds_num to 0 when clearing array in tcp_set_msgfds()) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-07numa: do not leak NumaOptionsMarc-André Lureau
In all cases, call qapi_free_NumaOptions(), by using a common ending block. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-08-05tcg: Lower indirect registers in a separate passRichard Henderson
Rather than rely on recursion during the middle of register allocation, lower indirect registers to loads and stores off the indirect base into plain temps. For an x86_64 host, with sufficient registers, this results in identical code, modulo the actual register assignments. For an i686 host, with insufficient registers, this means that temps can be (temporarily) spilled to the stack in order to satisfy an allocation. This as opposed to the possibility of not being able to spill, to allocate a register for the indirect base, in order to perform a spill. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Require liveness analysisRichard Henderson
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Include liveness info in the dumpsRichard Henderson
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Compress dead_temps and mem_temps into a single arrayRichard Henderson
We only need two bits per temporary. Fold the two bytes into one, and reduce the memory and cachelines required during compilation. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Fold life data into TCGOpRichard Henderson
Reduce the size of other bitfields to make room. This reduces the cache footprint of compilation. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Reorg TCGOp chainingRichard Henderson
Instead of using -1 as end of chain, use 0, and link through the 0 entry as a fully circular double-linked list. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tcg: Compress liveness data to 16 bitsRichard Henderson
This reduces both memory usage and per-insn cacheline usage during code generation. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-08-05tests: Rename qtests which have names ending "error"Peter Maydell
We have three qtest tests which have test names ending with "error". This is awkward because the output of verbose test runs looks like /crypto/task/error: OK /crypto/task/thread_error: OK which gives false positives if you are grepping build logs for errors by looking for "error:". Since there are only three tests with this problem, just rename them all to 'failure' instead. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1470307178-22848-1-git-send-email-peter.maydell@linaro.org
2016-08-05wxx: Fix handling of files used for character devicesStefan Weil
On Windows, such files were not truncated like on all other hosts. Now we also test whether truncation is needed when running on Windows. The append case was also incorrect because it needs a different value for the desired access mode. Reported-by: Benjamin David Lunt <fys@fysnet.net> Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1470114877-1466-1-git-send-email-sw@weilnetz.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-05Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block layer patches for 2.7.0-rc2 # gpg: Signature made Fri 05 Aug 2016 10:30:12 BST # gpg: using RSA key 0x7F09B272C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * remotes/kevin/tags/for-upstream: nvme: bump PCI revision nvme: fix identify to be NVMe 1.1 compliant block: Accept any target node for transactional blockdev-backup Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-05Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging # gpg: Signature made Fri 05 Aug 2016 10:24:34 BST # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: virtio-blk: Remove stale comment about draining virtio-blk: Release s->rq queue at system_reset throttle: Test burst limits lower than the normal limits throttle: Don't allow burst limits to be lower than the normal limits block/parallels: check new image size Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-05Merge remote-tracking branch 'remotes/famz/tags/docker-pull-request' into ↵Peter Maydell
staging # gpg: Signature made Fri 05 Aug 2016 09:58:50 BST # gpg: using RSA key 0xCA35624C6A9171C6 # gpg: Good signature from "Fam Zheng <famz@redhat.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: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6 * remotes/famz/tags/docker-pull-request: docker: Add "--enable-werror" to configure command line docker: Be compatible with older docker Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-05Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160804-tag' ↵Peter Maydell
into staging Xen 2016/08/04 # gpg: Signature made Thu 04 Aug 2016 18:43:14 BST # gpg: using RSA key 0x894F8F4870E1AE90 # gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>" # Primary key fingerprint: D04E 33AB A51F 67BA 07D3 0AEA 894F 8F48 70E1 AE90 * remotes/sstabellini/tags/xen-20160804-tag: Xen PCI passthrough: fix passthrough failure when no interrupt pin Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-05virtio-blk: Remove stale comment about drainingFam Zheng
This is stale after commit 6e40b3bf (virtio-blk: Use blk_drain() to drain IO requests), remove it. Suggested-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1470278654-13525-3-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05virtio-blk: Release s->rq queue at system_resetFam Zheng
At system_reset, there is no point in retrying the queued request, because the driver that issued the request won't be around any more. Analyzed-by: Laszlo Ersek <lersek@redhat.com> Reported-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1470278654-13525-2-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05throttle: Test burst limits lower than the normal limitsAlberto Garcia
This checks that making FOO_max lower than FOO is not allowed. We could also forbid having FOO_max == FOO, but that doesn't have any odd side effects and it would require us to update several other tests, so let's keep it simple. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 2f90f9ee58aa14b7bd985f67c5996b06e0ab6c19.1469693110.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05throttle: Don't allow burst limits to be lower than the normal limitsAlberto Garcia
Setting FOO_max to a value that is lower than FOO does not make sense, and it produces odd results depending on the value of FOO_max_length. Although the user should not set that configuration in the first place it's better to reject it explicitly. https://bugzilla.redhat.com/show_bug.cgi?id=1355665 Signed-off-by: Alberto Garcia <berto@igalia.com> Reported-by: Gu Nini <ngu@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 663d5aca406060e31f80d8113f77b6feee63b919.1469693110.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05block/parallels: check new image sizeKlim Kireev
Before this patch incorrect image could be created via qemu-img (Example: qemu-img create -f parallels -o size=4096T hack.img), incorrect images cannot be used due to overflow in main image structure. This patch add check of size in image creation. After reading size it compare it with UINT32_MAX * cluster_size. Signed-off-by: Klim Kireev <proffk@virtuozzo.mipt.ru> Signed-off-by: Denis V. Lunev <den@openvz.org> Message-id: 1469639300-12155-1-git-send-email-den@openvz.org CC: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05nvme: bump PCI revisionChristoph Hellwig
The broken Identify implementation in earlier Qemu versions means we need to blacklist it from issueing the NVMe 1.1 Identify Namespace List command. As we want to be able to use it in newer Qemu versions we need a way to identify those. Bump the PCI revision as a guest visible indicator of this bug fix. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-08-05nvme: fix identify to be NVMe 1.1 compliantChristoph Hellwig
NVMe 1.1 requires devices to implement a Namespace List subcommand of the identify command. Qemu not only not implements this features, but also misinterprets it as an Identify Controller request. Due to this any OS trying to use the Namespace List will fail the probe. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-08-05block: Accept any target node for transactional blockdev-backupKevin Wolf
Commit 0d978913 changed blockdev-backup to accept arbitrary node names instead of device names (i.e. root nodes) for the backup target. However, it forgot to make the same change in transactions and to update the documentation. This patch fixes these omissions. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-05docker: Add "--enable-werror" to configure command lineFam Zheng
We don't have .git in the docker checkout, add this to enable -Werror explicitly. Signed-off-by: Fam Zheng <famz@redhat.com> Message-id: 1469453510-658-1-git-send-email-famz@redhat.com
2016-08-05docker: Be compatible with older dockerFam Zheng
By not using "--format" with docker images command. The option is not available on RHEL 7 docker command. Use an awk matching command instead. Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <1470202928-3392-1-git-send-email-famz@redhat.com>
2016-08-04Xen PCI passthrough: fix passthrough failure when no interrupt pinBruce Rogers
Commit 5a11d0f7 mistakenly converted a log message into an error condition when no pin interrupt is found for the pci device being passed through. Revert that part of the commit. Signed-off-by: Bruce Rogers <brogers@suse.com> Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> Acked-by: Anthony PERARD <anthony.perard@citrix.com>
2016-08-04Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160804' ↵Peter Maydell
into staging linux-user important fixes for 2.7 # gpg: Signature made Thu 04 Aug 2016 15:10:57 BST # gpg: using RSA key 0xB44890DEDE3C9BC0 # gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>" # gpg: aka "Riku Voipio <riku.voipio@linaro.org>" # Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0 * remotes/riku/tags/pull-linux-user-20160804: linux-user: Handle brk() attempts with very large sizes linux-user: Fix target_semid_ds structure definition linux-user: Don't write off end of new_utsname buffer linux-user: Fix memchr() argument in open_self_cmdline() linux-user: Use correct alignment for long long on i386 guests Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-04linux-user: Handle brk() attempts with very large sizesPeter Maydell
In do_brk(), we were inadvertently truncating the size of a requested brk() from the guest by putting it into an 'int' variable. This meant that we would incorrectly report success back to the guest rather than a failed allocation, typically resulting in the guest then segfaulting. Use abi_ulong instead. This fixes a crash in the '31370.cc' test in the gcc libstdc++ test suite (the test case starts by trying to allocate a very large size and reduces the size until the allocation succeeds). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-08-04linux-user: Fix target_semid_ds structure definitionPeter Maydell
The target_semid_ds structure is not correct for all architectures: the padding fields should only exist for: * 32-bit ABIs * x86 It is also misnamed, since it is following the kernel semid64_ds structure (QEMU doesn't support the legacy semid_ds structure at all). Rename the struct, provide a correct generic definition and allow the oddball x86 architecture to provide its own version. This fixes broken SYSV semaphores for all our 64-bit architectures except x86 and ppc. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-08-04linux-user: Don't write off end of new_utsname bufferPeter Maydell
Use g_strlcpy() rather than strcpy() to copy the uname string into the structure we return to the guest for the uname syscall. This avoids overrunning the buffer if the user passed us an overlong string via the QEMU command line. We fix a comment typo while we're in the neighbourhood. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-08-04linux-user: Fix memchr() argument in open_self_cmdline()Peter Maydell
In open_self_cmdline() we look for a 0 in the buffer we read from /prc/self/cmdline. We were incorrectly passing the length of our buf[] array to memchr() as the length to search, rather than the number of bytes we actually read into it, which could be shorter. This was spotted by Coverity (because it could result in our trying to pass a negative length argument to write()). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-08-04linux-user: Use correct alignment for long long on i386 guestsPeter Maydell
For i386, the ABI specifies that 'long long' (8 byte values) need only be 4 aligned, but we were requiring them to be 8-aligned. This meant we were laying out the target_epoll_event structure wrongly. Add a suitable ifdef to abitypes.h to specify the i386-specific alignment requirement. Reported-by: Icenowy Zheng <icenowy@aosc.xyz> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-08-04Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* xsetbv fix (x86 targets TCG) * remove unused functions * qht segfault and memory leak fixes * NBD fixes * Fix for non-power-of-2 discard granularity * Memory hotplug fixes * Migration regressions * IOAPIC fixes and (disabled by default) EOI register support * Various other small fixes # gpg: Signature made Wed 03 Aug 2016 18:01:05 BST # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (25 commits) util: Fix assertion in iov_copy() upon zero 'bytes' and non-zero 'offset' qdev: Fix use after free in qdev_init_nofail error path Reorganize help output of '-display' option x86: ioapic: add support for explicit EOI x86: ioapic: ignore level irq during processing apic: fix broken migration for kvm-apic fw_cfg: Make base type "fw_cfg" abstract block: Cater to iscsi with non-power-of-2 discard osdep: Document differences in rounding macros nbd: Limit nbdflags to 16 bits nbd: Fix bad flag detection on server i2c: fix migration regression introduced by broadcast support mptsas: really fix migration compatibility qdist: return "(empty)" instead of NULL when printing an empty dist qdist: use g_renew and g_new instead of g_realloc and g_malloc. qdist: fix memory leak during binning target-i386: fix typo in xsetbv implementation qht: do not segfault when gathering stats from an uninitialized qht util: Drop inet_listen() util: drop unix_nonblocking_connect() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-03Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-20160803-1' into ↵Peter Maydell
staging vnc: fixes for "-vnc none". # gpg: Signature made Wed 03 Aug 2016 16:33:07 BST # gpg: using RSA key 0x4CB6D8EED3E87138 # 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>" # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * remotes/kraxel/tags/pull-vnc-20160803-1: vnc: ensure connection sharing/limits is always configured vnc: fix crash when vnc_server_info_get has an error vnc: don't crash getting server info if lsock is NULL Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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