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2017-09-27migration: disable auto-converge during bulk block migrationPeter Lieven
auto-converge and block migration currently do not play well together. During block migration the auto-converge logic detects that ram migration makes no progress and thus throttles down the vm until it nearly stalls completely. Avoid this by disabling the throttling logic during the bulk phase of the block migration. Cc: qemu-stable@nongnu.org Signed-off-by: Peter Lieven <pl@kamp.de> Message-Id: <1506421996-12513-1-git-send-email-pl@kamp.de> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-09-26Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into ↵Peter Maydell
staging trivial patches for 2017-09-26 # gpg: Signature made Tue 26 Sep 2017 07:13:16 BST # gpg: using RSA key 0x701B4F6B1A693E59 # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" # Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931 4B22 701B 4F6B 1A69 3E59 * remotes/mjt/tags/trivial-patches-fetch: (29 commits) hw/isa/pc87312: Mark the device with user_creatable = false Drop gld linker usage on SunOS tests/boot-sector: Increase timeout to 600 seconds nbd-client: Use correct macro parenthesization hw/display/virtio-gpu: Put the virtio-gpu-device into the display category osdep: Fix ROUND_UP(64-bit, 32-bit) target/xtensa: Use the pre-defined MEMTXATTRS_UNSPECIFIED macro trivial: Add missing "-m" parameter in docs/memory-hotplug.txt chardev/baum: fix baum that releases brlapi twice remove trailing whitespace from qemu-options.hx hw/display/xenfb.c: Add trace_xenfb_key_event aux-to-i2c-bridge: don't allow user to create one util/qemu-thread-posix.c: Replace OS ifdefs with CONFIG_HAVE_SEM_TIMEDWAIT MAINTAINERS: update docs/interop/ entries MAINTAINERS: update docs/devel/ entries MAINTAINERS: add missing Cryptography entry MAINTAINERS: add missing entry for Generic Loader MAINTAINERS: add missing AIO entry MAINTAINERS: add missing entries for throttling infra MAINTAINERS: add missing SSI entries ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-26Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20170925' into stagingPeter Maydell
BQL bug fix # gpg: Signature made Mon 25 Sep 2017 23:14:48 BST # gpg: using RSA key 0x64DF38E8AF7E215F # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.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: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * remotes/rth/tags/pull-tcg-20170925: accel/tcg/cputlb: avoid recursive BQL (fixes #1706296) Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-26hw/isa/pc87312: Mark the device with user_creatable = falseThomas Huth
QEMU currently aborts if you try to use the device at the command line: $ ppc64-softmmu/qemu-system-ppc64 -S -machine prep -device pc87312 Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222: qemu-system-ppc64: -device pc87312: Device 'parallel0' is in use Aborted (core dumped) It uses parallel_hds in its realize function, so I can not be instantiated by the user again. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26Drop gld linker usage on SunOSKamil Rytarowski
This is required to be removed on SmartOS (Illumos). As of now there are no alternative supported SunOS distributions. Signed-off-by: Kamil Rytarowski <n54@gmx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26tests/boot-sector: Increase timeout to 600 secondsThomas Huth
If QEMU has been compiled with the flags --enable-tcg-interpreter and --enable-debug, the guest is running incredibly slow. The pxe boot test can take up to 400 seconds when testing the pseries ppc64 machine. While we should still look for ways to speed up the test on the pseries machine, it's better to increase the timeout in this test to 600 seconds anyway to allow the test to pass successfully now with this unusal configuration already. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26nbd-client: Use correct macro parenthesizationEric Blake
If 'bs' is a complex expression, we were only casting the front half rather than the full expression. Luckily, none of the callers were passing bad arguments, but it's better to be robust up front. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26hw/display/virtio-gpu: Put the virtio-gpu-device into the display categoryThomas Huth
The virtio-gpu-pci device is already in the display category, so the virtio-gpu-device should be there, too. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26osdep: Fix ROUND_UP(64-bit, 32-bit)Eric Blake
When using bit-wise operations that exploit the power-of-two nature of the second argument of ROUND_UP(), we still need to ensure that the mask is as wide as the first argument (done by using a ternary to force proper arithmetic promotion). Unpatched, ROUND_UP(2ULL*1024*1024*1024*1024, 512U) produces 0, instead of the intended 2TiB, because negation of an unsigned 32-bit quantity followed by widening to 64-bits does not sign-extend the mask. Broken since its introduction in commit 292c8e50 (v1.5.0). Callers that passed the same width type to both macro parameters, or that had other code to ensure the first parameter's maximum runtime value did not exceed the second parameter's width, are unaffected, but I did not audit to see which (if any) existing clients of the macro could trigger incorrect behavior (I found the bug while adding a new use of the macro). While preparing the patch, checkpatch complained about poor spacing, so I also fixed that here and in the nearby DIV_ROUND_UP. CC: qemu-trivial@nongnu.org CC: qemu-stable@nongnu.org Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26target/xtensa: Use the pre-defined MEMTXATTRS_UNSPECIFIED macroAlistair Francis
Instead of using the hardcoded (MemTxAttrs){0} for no memory attributes let's use the already defined MEMTXATTRS_UNSPECIFIED macro instead. This is technically a change of behaviour as MEMTXATTRS_UNSPECIFIED sets the unspecified field to 1, but it doesn't look like anything is checking this field. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26trivial: Add missing "-m" parameter in docs/memory-hotplug.txtThomas Huth
The example obviously lacks the "-m" parameter. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26chardev/baum: fix baum that releases brlapi twiceLiang Yan
Error process of baum_chr_open needs to set brlapi null, so it won't get released twice in char_braille_finalize, which will cause "/usr/bin/qemu-system-x86_64: double free or corruption (!prev)" Signed-off-by: Liang Yan <lyan@suse.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26remove trailing whitespace from qemu-options.hxMichael Tokarev
Remove trailing whitespace in qemu-options documentation, as it causes reproducibility issues depending on the echo implementation used by the Makefile. Reported-By: Vagrant Cascadian <vagrant@debian.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-09-26hw/display/xenfb.c: Add trace_xenfb_key_eventLiang Yan
It may be better to add a trace event to monitor the last moment of a key event from QEMU to guest VM Signed-off-by: Liang Yan <lyan@suse.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26aux-to-i2c-bridge: don't allow user to create oneKONRAD Frederic
This device is private and is created once per aux-bus. So don't allow the user to create one from command-line. Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: KONRAD Frederic <frederic.konrad@adacore.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26util/qemu-thread-posix.c: Replace OS ifdefs with CONFIG_HAVE_SEM_TIMEDWAITPeter Maydell
In qemu-thread-posix.c we have two implementations of the various qemu_sem_* functions, one of which uses native POSIX sem_* and the other of which emulates them with pthread conditions. This is necessary because not all our host OSes support sem_timedwait(). Instead of a hard-coded list of OSes which don't implement sem_timedwait(), which gets out of date, make configure test for the presence of the function and set a new CONFIG_HAVE_SEM_TIMEDWAIT appropriately. In particular, newer NetBSDs have sem_timedwait(), so this commit will switch them over to using it. OSX still does not have an implementation. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Kamil Rytarowski <n54@gmx.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: update docs/interop/ entriesPhilippe Mathieu-Daudé
moved in commit 7746cf8aab68 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Fam Zheng <famz@redhat.com> Acked-by: John Snow <jsnow@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: update docs/devel/ entriesPhilippe Mathieu-Daudé
moved in commit ac06724a7158 Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing Cryptography entryPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing entry for Generic LoaderPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing AIO entryPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing entries for throttling infraPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing SSI entriesPhilippe Mathieu-Daudé
Alistair Francis volunteered :) Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing PCI entriesPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing qcow2 entryPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing Guest Agent entriesPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing VMWare entryPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing entry for vhostPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing STM32 entryPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alistair Francis <alistair@alistair23.me> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26MAINTAINERS: add missing ARM entriesPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26Replace round_page() with TARGET_PAGE_ALIGN()Kamil Rytarowski
This change fixes conflict with the DragonFly BSD headers. Signed-off-by: Kamil Rytarowski <n54@gmx.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26configure: Remove unused code (found by shellcheck)Stefan Weil
smartcard_cflags is no longer needed since commit 0b22ef0f57a8910d849602bef0940edcd0553d2c. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-26Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2017-09-25' into ↵Peter Maydell
staging nbd patches for 2017-09-25 - Eric Blake: nbd-client: Use correct macro parenthesization - Vladimir Sementsov-Ogievskiy: 0/3 nbd client refactoring and fixing # gpg: Signature made Mon 25 Sep 2017 14:39:21 BST # gpg: using RSA key 0xA7A16B4A2527436A # gpg: Good signature from "Eric Blake <eblake@redhat.com>" # gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" # gpg: aka "[jpeg image of size 6874]" # Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A * remotes/ericb/tags/pull-nbd-2017-09-25: block/nbd-client: nbd_co_send_request: fix return code block/nbd-client: simplify check in nbd_co_receive_reply block/nbd-client: refactor nbd_co_receive_reply nbd-client: Use correct macro parenthesization Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-25Merge remote-tracking branch 'remotes/thibault/tags/samuel-thibault' into ↵Peter Maydell
staging slirp updates # gpg: Signature made Sun 24 Sep 2017 19:07:51 BST # gpg: using RSA key 0x9E511E01C737F075 # gpg: Good signature from "Samuel Thibault <samuel.thibault@aquilenet.fr>" # gpg: aka "Samuel Thibault <sthibault@debian.org>" # gpg: aka "Samuel Thibault <samuel.thibault@gnu.org>" # gpg: aka "Samuel Thibault <samuel.thibault@inria.fr>" # gpg: aka "Samuel Thibault <samuel.thibault@labri.fr>" # gpg: aka "Samuel Thibault <samuel.thibault@ens-lyon.org>" # gpg: aka "Samuel Thibault <samuel.thibault@u-bordeaux.fr>" # 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: 900C B024 B679 31D4 0F82 304B D017 8C76 7D06 9EE6 # Subkey fingerprint: 9A37 3D36 64A8 DC62 DA0A 34FD 9E51 1E01 C737 F075 * remotes/thibault/tags/samuel-thibault: slirp: Add a special case for the NULL socket slirp: Fix intermittent send queue hangs on a socket slirp: Add explanation for hostfwd parsing failure Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-25accel/tcg/cputlb: avoid recursive BQL (fixes #1706296)Alex Bennée
The mmio path (see exec.c:prepare_mmio_access) already protects itself against recursive locking and it makes sense to do the same for io_readx/writex. Otherwise any helper running in the BQL context will assert when it attempts to write to device memory as in the case of the bug report. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> CC: Richard Jones <rjones@redhat.com> CC: Paolo Bonzini <bonzini@gnu.org> CC: qemu-stable@nongnu.org Message-Id: <20170921110625.9500-1-alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-09-25block/nbd-client: nbd_co_send_request: fix return codeVladimir Sementsov-Ogievskiy
It's incorrect to return success rc >= 0 if we skip qio_channel_writev_all() call due to s->quit. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170920124507.18841-4-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2017-09-25block/nbd-client: simplify check in nbd_co_receive_replyVladimir Sementsov-Ogievskiy
If we are woken up from while() loop in nbd_read_reply_entry handles must be equal. If we are woken up from nbd_recv_coroutines_wake_all s->quit must be true, so we do not need checking handles equality. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170920124507.18841-3-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2017-09-25block/nbd-client: refactor nbd_co_receive_replyVladimir Sementsov-Ogievskiy
"NBDReply *reply" parameter of nbd_co_receive_reply is used only to pass return value for nbd_co_request (reply.error). Remove it and use function return value instead. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20170920124507.18841-2-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2017-09-25nbd-client: Use correct macro parenthesizationEric Blake
If 'bs' is a complex expression, we were only casting the front half rather than the full expression. Luckily, none of the callers were passing bad arguments, but it's better to be robust up front. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20170918214649.17550-1-eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-09-24slirp: Add a special case for the NULL socketKevin Cernekee
NULL sockets are used for NDP, BOOTP, and other critical operations. If the topmost mbuf in a NULL session is blocked pending resolution, it may cause problems if it blocks other packets with a NULL socket. So do not add mbufs with a NULL socket field to the same session. Signed-off-by: Kevin Cernekee <cernekee@chromium.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-09-24slirp: Fix intermittent send queue hangs on a socketKevin Cernekee
if_output() originally sent one mbuf per call and used the slirp->next_m variable to keep track of where it left off. But nowadays it tries to send all of the mbufs from the fastq, and one mbuf from each session on the batchq. The next_m variable is both redundant and harmful: there is a case[0] involving delayed packets in which next_m ends up pointing to &slirp->if_batchq when an active session still exists, and this blocks all traffic for that session until qemu is restarted. The test case was created to reproduce a problem that was seen on long-running Chromium OS VM tests[1] which rapidly create and destroy ssh connections through hostfwd. [0] https://pastebin.com/NNy6LreF [1] https://bugs.chromium.org/p/chromium/issues/detail?id=766323 Signed-off-by: Kevin Cernekee <cernekee@chromium.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-09-24slirp: Add explanation for hostfwd parsing failureDr. David Alan Gilbert
e.g. ./x86_64-softmmu/qemu-system-x86_64 -nographic -netdev 'user,id=vnet,hostfwd=:555.0.0.0:0-:22' qemu-system-x86_64: -netdev user,id=vnet,hostfwd=:555.0.0.0:0-:22: Invalid host forwarding rule ':555.0.0.0:0-:22' (Bad host address) Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2017-09-23Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* Speed up AddressSpaceDispatch creation (Alexey) * Fix kvm.c assert (David) * Memory fixes and further speedup (me) * Persistent reservation manager infrastructure (me) * virtio-serial: add enable_backend callback (Pavel) * chardev GMainContext fixes (Peter) # gpg: Signature made Fri 22 Sep 2017 20:07:33 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: (32 commits) chardev: remove context in chr_update_read_handler chardev: use per-dev context for io_add_watch_poll chardev: add Chardev.gcontext field chardev: new qemu_chr_be_update_read_handlers() scsi: add persistent reservation manager using qemu-pr-helper scsi: add multipath support to qemu-pr-helper scsi: build qemu-pr-helper scsi, file-posix: add support for persistent reservation management memory: Share special empty FlatView memory: seek FlatView sharing candidates among children subregions memory: trace FlatView creation and destruction memory: Create FlatView directly memory: Get rid of address_space_init_shareable memory: Rework "info mtree" to print flat views and dispatch trees memory: Do not allocate FlatView in address_space_init memory: Share FlatView's and dispatch trees between address spaces memory: Move address_space_update_ioeventfds memory: Alloc dispatch tree where topology is generared memory: Store physical root MR in FlatView memory: Rename mem_begin/mem_commit/mem_add helpers ... # Conflicts: # configure
2017-09-22chardev: remove context in chr_update_read_handlerPeter Xu
We had a per-chardev cache for context, then we don't need this parameter to be passed in every time when chr_update_read_handler() called. As long as we are calling chr_update_read_handler() using qemu_chr_be_update_read_handlers() we'll be fine. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1505975754-21555-5-git-send-email-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22chardev: use per-dev context for io_add_watch_pollPeter Xu
It was only passed in by chr_update_read_handlers(). However when reconnect, we'll lose that context information. So if a chardev was running on another context (rather than the default context, the NULL pointer), it'll switch back to the default context if reconnection happens. But, it should really stick to the old context. Convert all the callers of io_add_watch_poll() to use the internally cached gcontext. Then the context should be able to survive even after reconnections. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1505975754-21555-4-git-send-email-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22chardev: add Chardev.gcontext fieldPeter Xu
It caches the gcontext that is used to poll the chardev IO. Before this patch, we only passed it in via chr_update_read_handlers(). However that may not be enough if the char backend is disconnected and reconnected afterward. There are chardev codes that still assumed the context be NULL (which is the main context). Will fix that up in following up patches. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1505975754-21555-3-git-send-email-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22chardev: new qemu_chr_be_update_read_handlers()Peter Xu
Add a wrapper for the chr_update_read_handler(). Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <1505975754-21555-2-git-send-email-peterx@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22scsi: add persistent reservation manager using qemu-pr-helperPaolo Bonzini
This adds a concrete subclass of pr-manager that talks to qemu-pr-helper. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22scsi: add multipath support to qemu-pr-helperPaolo Bonzini
Proper support of persistent reservation for multipath devices requires communication with the multipath daemon, so that the reservation is registered and applied when a path comes up. The device mapper utilities provide a library to do so; this patch makes qemu-pr-helper.c detect multipath devices and, when one is found, delegate the operation to libmpathpersist. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-09-22scsi: build qemu-pr-helperPaolo Bonzini
Introduce a privileged helper to run persistent reservation commands. This lets virtual machines send persistent reservations without using CAP_SYS_RAWIO or out-of-tree patches. The helper uses Unix permissions and SCM_RIGHTS to restrict access to processes that can access its socket and prove that they have an open file descriptor for a raw SCSI device. The next patch will also correct the usage of persistent reservations with multipath devices. It would also be possible to support for Linux's IOC_PR_* ioctls in the future, to support NVMe devices. For now, however, only SCSI is supported. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-28 12:40:13 +0000