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2017-02-24Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20170223-1' into ↵Peter Maydell
staging usb: ohci bugfix, switch core to unrealize, xhci property cleanup # gpg: Signature made Thu 23 Feb 2017 15:37:57 GMT # 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-usb-20170223-1: xhci: properties cleanup usb: ohci: fix error return code in servicing td usb: replace handle_destroy with unrealize Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-24Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.9-20170222' ↵Peter Maydell
into staging ppc patch queue for 2017-02-22 This pull request has: * Yet more POWER9 instruction implementations * Some extensions to the softfloat code which are necesssary for some of those instructions * Some preliminary patches in preparation for POWER9 softmmu implementation * Igor Mammedov's cleanups to unify hotplug cpu handling across architectures * Assorted bugfixes The softfloat and cpu hotplug changes aren't entirely ppc specific (in fact the hotplug stuff contains some pc specific patches). However they're included here because ppc is one of the main beneficiaries, and the series depend on some ppc specific patches. # gpg: Signature made Wed 22 Feb 2017 06:29:47 GMT # 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: aka "David Gibson (kernel.org) <dwg@kernel.org>" # Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392 * remotes/dgibson/tags/ppc-for-2.9-20170222: (43 commits) hw/ppc/ppc405_uc.c: Avoid integer overflows hw/ppc/spapr: Check for valid page size when hot plugging memory target-ppc: fix Book-E TLB matching hw/net/spapr_llan: 6 byte mac address device tree entry machine: replace query_hotpluggable_cpus() callback with has_hotpluggable_cpus flag machine: unify [pc_|spapr_]query_hotpluggable_cpus() callbacks spapr: reuse machine->possible_cpus instead of cores[] change CPUArchId.cpu type to Object* pc: pass apic_id to pc_find_cpu_slot() directly so lookup could be done without CPU object pc: calculate topology only once when possible_cpus is initialised pc: move pcms->possible_cpus init out of pc_cpus_init() machine: move possible_cpus to MachineState hw/pci-host/prep: Do not use hw_error() in realize function target/ppc/POWER9: Direct all instr and data storage interrupts to the hypv target/ppc/POWER9: Adapt LPCR handling for POWER9 target/ppc/POWER9: Add ISAv3.00 MMU definition target/ppc: Fix LPCR DPFD mask define target-ppc: Add xscvqpudz and xscvqpuwz instructions target-ppc: Implement round to odd variants of quad FP instructions softfloat: Add float128_to_uint32_round_to_zero() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-23usb: replace handle_destroy with unrealizeMarc-André Lureau
Curiously, unrealize() is not being used, but it seems more appropriate than handle_destroy() together with realize(). It is more ubiquitous destroy name in qemu code base and may throw errors. Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170221141451.28305-25-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-22machine: replace query_hotpluggable_cpus() callback with ↵Igor Mammedov
has_hotpluggable_cpus flag Generic helper machine_query_hotpluggable_cpus() replaced target specific query_hotpluggable_cpus() callbacks so there is no need in it anymore. However inon NULL callback value is used to detect/report hotpluggable cpus support, therefore it can be removed completely. Replace it with MachineClass.has_hotpluggable_cpus boolean which is sufficient for the task. Suggested-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22machine: unify [pc_|spapr_]query_hotpluggable_cpus() callbacksIgor Mammedov
All callbacks FOO_query_hotpluggable_cpus() are practically the same except of setting vcpus_count to different values. Convert them to a generic machine_query_hotpluggable_cpus() callback by moving vcpus_count initialization to per machine specific callback possible_cpu_arch_ids(). Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22spapr: reuse machine->possible_cpus instead of cores[]Igor Mammedov
Replace SPAPR specific cores[] array with generic machine->possible_cpus and store core objects there. It makes cores bookkeeping similar to x86 cpus and will allow to unify similar code. It would allow to replace cpu_index based NUMA node mapping with iproperty based one (for -device created cores) since possible_cpus carries board defined topology/layout. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22change CPUArchId.cpu type to Object*Igor Mammedov
so it could be reused for SPAPR cores as well Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22pc: calculate topology only once when possible_cpus is initialisedIgor Mammedov
Fill in CpuInstanceProperties once at board init time and just copy them whenever query_hotpluggable_cpus() is called. It will keep topology info always available without need to recalculate it every time it's needed. Considering it has NUMA node id, it will be used to keep NUMA node to cpu mapping instead of numa_info[i].node_cpu bitmasks. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22machine: move possible_cpus to MachineStateIgor Mammedov
so that it would be possible to reuse it with spapr/virt-aarch64 targets. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22softfloat: Add float128_to_uint32_round_to_zero()Bharata B Rao
float128_to_uint32_round_to_zero() is needed by xscvqpuwz instruction of PowerPC ISA 3.0. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22softfloat: Add float128_to_uint64_round_to_zero()Bharata B Rao
Implement float128_to_uint64() and use that to implement float128_to_uint64_round_to_zero() This is required by xscvqpudz instruction of PowerPC ISA 3.0. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22softfloat: Add round-to-odd rounding modeBharata B Rao
Power ISA 3.0 introduces a few quadruple precision floating point instructions that support round-to-odd rounding mode. The round-to-odd mode is explained as under: Let Z be the intermediate arithmetic result or the operand of a convert operation. If Z can be represented exactly in the target format, the result is Z. Otherwise the result is either Z1 or Z2 whichever is odd. Here Z1 and Z2 are the next larger and smaller numbers representable in the target format respectively. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-22spapr: move spapr_core_[foo]plug() callbacks close to machine code in spapr.cIgor Mammedov
spapr_core_pre_plug/spapr_core_plug/spapr_core_unplug() are managing wiring CPU core into spapr machine state and not internal CPU core state. So move them from spapr_cpu_core.c to spapr.c where other similar (spapr_memory_[foo]plug()) callbacks are located, which also matches x86 target practice. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-02-21hw: xilinx-pcie: Add support for Xilinx AXI PCIe ControllerPaul Burton
Add support for emulating the Xilinx AXI Root Port Bridge for PCI Express as described by Xilinx' PG055 document. This is a PCIe controller that can be used with certain series of Xilinx FPGAs, and is used on the MIPS Boston board which will make use of this code. Signed-off-by: Paul Burton <paul.burton@imgtec.com> [yongbok.kim@imgtec.com: removed returning on !level, updated IRQ connection with GPIO logic, moved xilinx_pcie_init() to boston.c replaced stw_le_p() with pci_set_word() and other cosmetic changes] Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-02-21loader: Support Flattened Image Trees (FIT images)Paul Burton
Introduce support for loading Flattened Image Trees, as used by modern U-Boot. FIT images are essentially flattened device tree files which contain binary images such as kernels, FDTs or ramdisks along with one or more configuration nodes describing boot configurations. The MIPS Boston board typically boots kernels in the form of FIT images, and will make use of this code. Signed-off-by: Paul Burton <paul.burton@imgtec.com> [yongbok.kim@imgtec.com: fixed potential memory leaks, isolated building option] Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-02-21hw/mips_gictimer: provide API for retrieving frequencyPaul Burton
Provide a new function mips_gictimer_get_freq() which returns the frequency at which a GIC timer will count. This will be useful for boards which perform setup based upon this frequency. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-02-21hw/mips_cmgcr: allow GCR base to be movedPaul Burton
Support moving the GCR base address & updating the CPU's CP0 CMGCRBase register appropriately. This is required if a platform needs to move its GCRs away from other memory, as the MIPS Boston development board does to avoid its flash memory. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
2017-02-21Merge remote-tracking branch 'remotes/armbru/tags/pull-block-2017-02-21' ↵Peter Maydell
into staging Changes to -drive without if= and with if=scsi # gpg: Signature made Tue 21 Feb 2017 12:22:35 GMT # gpg: using RSA key 0x3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-block-2017-02-21: hw/i386: Deprecate -drive if=scsi with PC machine types hw: Deprecate -drive if=scsi with non-onboard HBAs hw/scsi: Concentrate -drive if=scsi auto-create in one place hw: Drop superfluous special checks for orphaned -drive blockdev: Make orphaned -drive fatal blockdev: Improve message for orphaned -drive hw/arm/highbank: Default -drive to if=ide instead of if=scsi hw: Default -drive to if=none instead of scsi when scsi cannot work hw: Default -drive to if=none instead of ide when ide cannot work hw/arm/cubieboard hw/arm/xlnx-ep108: Fix units_per_default_bus hw: Default -drive to if=ide explicitly where it works Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-21hw: Deprecate -drive if=scsi with non-onboard HBAsMarkus Armbruster
Block backends defined with "-drive if=T" with T other than "none" are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. Drives defined with if=scsi are also picked up by SCSI HBAs added with -device, unlike other interface types. Deprecate this usage, as follows. Create the frontends for onboard HBAs in machine initialization code, exactly like we do for if=ide and other interface types. Change scsi_legacy_handle_cmdline() to create a frontend only when it's still missing, and warn that this usage is deprecated. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1487161136-9018-3-git-send-email-armbru@redhat.com>
2017-02-21hw/scsi: Concentrate -drive if=scsi auto-create in one placeMarkus Armbruster
The logic to create frontends for -drive if=scsi is in SCSI HBAs. For all other interface types, it's in machine initialization code. A few machine types create the SCSI HBAs necessary for that. That's also not done for other interface types. I'm going to deprecate these SCSI eccentricities. In preparation for that, create the frontends in main() instead of the SCSI HBAs, by calling new function scsi_legacy_handle_cmdline() there. Note that not all SCSI HBAs create frontends. Take care not to change that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1487161136-9018-2-git-send-email-armbru@redhat.com> Acked-By: Paolo Bonzini <pbonzini@redhat.com>
2017-02-21blockdev: Make orphaned -drive fatalMarkus Armbruster
Block backends defined with "-drive if=T" with T other than "none" are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. If machine initialization code doesn't comply, the block backend remains unused. This triggers a warning since commit a66c9dc, v2.2.0. Drives created by default are exempted; use -nodefaults to get rid of them. Turn this warning into an error. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1487153147-11530-8-git-send-email-armbru@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com>
2017-02-21hw: Default -drive to if=none instead of ide when ide cannot workMarkus Armbruster
Block backends defined with -drive if=ide are meant to be picked up by machine initialization code: a suitable frontend gets created and wired up automatically. if=ide drives not picked up that way can still be used with -device as if they had if=none, but that's unclean and best avoided. Unused ones produce an "Orphaned drive without device" warning. -drive parameter "if" is optional, and the default depends on the machine type. If a machine type doesn't specify a default, the default is "ide". Many machine types implicitly default to if=ide that way, even though they don't actually have an IDE controller. This makes no sense. Change the implicit default to if=none. Affected machines: * all targets: none * aarch64/arm: akita ast2500 canon cheetah collie connex imx25 integratorcp kzm lm3s6965evb lm3s811evb mainstone musicpal n800 n810 netduino2 nuri palmetto realview romulus sabrelite smdkc210 sx1 sx1 verdex z2 * cris: axis-dev88 * i386/x86_64: xenpv * lm32: lm32-evr lm32-uclinux milkymist * m68k: an5206 dummy mcf5208evb * microblaze/microblazeel: petalogix-ml605 petalogix-s3adsp1800 * mips/mips64/mips64el/mipsel: mipssim * moxie: moxiesim * or32: or32-sim * ppc/ppc64/ppcemb: bamboo ref405ep taihu virtex-ml507 * ppc/ppc64: mpc8544ds ppce500 * sh4/sh4eb: shix * sparc: leon3_generic * sparc64: niagara * tricore: tricore_testboard * unicore32: puv3 * xtensa/xtensaeb: kc705 lx200 lx60 ml605 sim None of these machines have an IDE controller, let alone code to honor if=ide. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: qemu-arm@nongnu.org Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Anthony Perard <anthony.perard@citrix.com> Cc: xen-devel@lists.xensource.com Cc: Michael Walle <michael@walle.cc> Cc: Laurent Vivier <laurent@vivier.eu> Cc: Anthony Green <green@moxielogic.com> Cc: Jia Liu <proljc@gmail.com> Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Fabien Chouteau <chouteau@adacore.com> Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Cc: Artyom Tarasenko <atar4qemu@gmail.com> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-By: Artyom Tarasenko <atar4qemu@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <1487153147-11530-4-git-send-email-armbru@redhat.com>
2017-02-21Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging Pull request v2: * Rebased to resolve scsi conflicts # gpg: Signature made Tue 21 Feb 2017 11:56:24 GMT # 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: (24 commits) coroutine-lock: make CoRwlock thread-safe and fair coroutine-lock: add mutex argument to CoQueue APIs coroutine-lock: place CoMutex before CoQueue in header test-aio-multithread: add performance comparison with thread-based mutexes coroutine-lock: add limited spinning to CoMutex coroutine-lock: make CoMutex thread-safe block: document fields protected by AioContext lock async: remove unnecessary inc/dec pairs aio-posix: partially inline aio_dispatch into aio_poll block: explicitly acquire aiocontext in aio callbacks that need it block: explicitly acquire aiocontext in bottom halves that need it block: explicitly acquire aiocontext in callbacks that need it block: explicitly acquire aiocontext in timers that need it aio: push aio_context_acquire/release down to dispatching qed: introduce qed_aio_start_io and qed_aio_next_io_cb blkdebug: reschedule coroutine on the AioContext it is running on coroutine-lock: reschedule coroutine on the AioContext it was running on nbd: convert to use qio_channel_yield io: make qio_channel_yield aware of AioContexts io: add methods to set I/O handlers on AioContext ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-21coroutine-lock: make CoRwlock thread-safe and fairPaolo Bonzini
This adds a CoMutex around the existing CoQueue. Because the write-side can just take CoMutex, the old "writer" field is not necessary anymore. Instead of removing it altogether, count the number of pending writers during a read-side critical section and forbid further readers from entering. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213181244.16297-7-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21coroutine-lock: add mutex argument to CoQueue APIsPaolo Bonzini
All that CoQueue needs in order to become thread-safe is help from an external mutex. Add this to the API. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213181244.16297-6-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21coroutine-lock: place CoMutex before CoQueue in headerPaolo Bonzini
This will avoid forward references in the next patch. It is also more logical because CoQueue is not anymore the basic primitive. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213181244.16297-5-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21coroutine-lock: add limited spinning to CoMutexPaolo Bonzini
Running a very small critical section on pthread_mutex_t and CoMutex shows that pthread_mutex_t is much faster because it doesn't actually go to sleep. What happens is that the critical section is shorter than the latency of entering the kernel and thus FUTEX_WAIT always fails. With CoMutex there is no such latency but you still want to avoid wait and wakeup. So introduce it artificially. This only works with one waiters; because CoMutex is fair, it will always have more waits and wakeups than a pthread_mutex_t. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213181244.16297-3-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21coroutine-lock: make CoMutex thread-safePaolo Bonzini
This uses the lock-free mutex described in the paper '"Blocking without Locking", or LFTHREADS: A lock-free thread library' by Gidenstam and Papatriantafilou. The same technique is used in OSv, and in fact the code is essentially a conversion to C of OSv's code. [Added missing coroutine_fn in tests/test-aio-multithread.c. --Stefan] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213181244.16297-2-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21block: document fields protected by AioContext lockPaolo Bonzini
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170213135235.12274-19-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21aio-posix: partially inline aio_dispatch into aio_pollPaolo Bonzini
This patch prepares for the removal of unnecessary lockcnt inc/dec pairs. Extract the dispatching loop for file descriptor handlers into a new function aio_dispatch_handlers, and then inline aio_dispatch into aio_poll. aio_dispatch can now become void. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170213135235.12274-17-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21io: make qio_channel_yield aware of AioContextsPaolo Bonzini
Support separate coroutines for reading and writing, and place the read/write handlers on the AioContext that the QIOChannel is registered with. Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213135235.12274-7-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21io: add methods to set I/O handlers on AioContextPaolo Bonzini
This is in preparation for making qio_channel_yield work on AioContexts other than the main one. Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213135235.12274-6-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21aio: introduce aio_co_schedule and aio_co_wakePaolo Bonzini
aio_co_wake provides the infrastructure to start a coroutine on a "home" AioContext. It will be used by CoMutex and CoQueue, so that coroutines don't jump from one context to another when they go to sleep on a mutex or waitqueue. However, it can also be used as a more efficient alternative to one-shot bottom halves, and saves the effort of tracking which AioContext a coroutine is running on. aio_co_schedule is the part of aio_co_wake that starts a coroutine on a remove AioContext, but it is also useful to implement e.g. bdrv_set_aio_context callbacks. The implementation of aio_co_schedule is based on a lock-free multiple-producer, single-consumer queue. The multiple producers use cmpxchg to add to a LIFO stack. The consumer (a per-AioContext bottom half) grabs all items added so far, inverts the list to make it FIFO, and goes through it one item at a time until it's empty. The data structure was inspired by OSv, which uses it in the very code we'll "port" to QEMU for the thread-safe CoMutex. Most of the new code is really tests. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20170213135235.12274-3-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-02-21xhci: add qemu xhci controllerGerd Hoffmann
Turn existing TYPE_XHCI into an abstract base class. Create two child classes, TYPE_NEC_XHCI (same name as old xhci controller) and TYPE_QEMU_XHCI (using an ID from our namespace). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Message-id: 1486382139-30630-3-git-send-email-kraxel@redhat.com
2017-02-20Merge remote-tracking branch 'remotes/kraxel/tags/pull-ui-20170220-1' into ↵Peter Maydell
staging ui: opengl fixes, for spice and egl-helpers. # gpg: Signature made Mon 20 Feb 2017 13:12:46 GMT # 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-ui-20170220-1: egl-helpers: Support newer MESA versions spice: allow to specify drm rendernode Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-20Merge remote-tracking branch 'remotes/kraxel/tags/pull-input-20170220-1' ↵Peter Maydell
into staging input: add wctablet, ps2 fix # gpg: Signature made Mon 20 Feb 2017 11:42:12 GMT # 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-input-20170220-1: Add wctablet device ps2: fix mouse mappings for right/middle button Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-20spice: allow to specify drm rendernodeMarc-André Lureau
When multiple GPU are available, picking the first one isn't always the best choice. Learn to specify a device rendernode. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20170212112118.16044-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-20ps2: fix mouse mappings for right/middle buttonFabian Lesniak
Commit 8b0caab0 ("ps2: add support for mice with extra/side buttons") accidentally swapped right and middle mouse buttons. This commit corrects the mapping as expected by the ps2 controller. Signed-off-by: Fabian Lesniak <fabian@lesniak-it.de> Message-id: 20170204150319.8907-1-fabian@lesniak-it.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-17intel_iommu: add "caching-mode" optionAviv Ben-David
This capability asks the guest to invalidate cache before each map operation. We can use this invalidation to trap map operations in the hypervisor. Signed-off-by: Aviv Ben-David <bd.aviv@gmail.com> [peterx: using "caching-mode" instead of "cache-mode" to align with spec] [peterx: re-write the subject to make it short and clear] Reviewed-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Aviv Ben-David <bd.aviv@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-17virtio: add MemoryListener to cache ring translationsPaolo Bonzini
The cached translations are RCU-protected to allow efficient use when processing virtqueues. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-17virtio: use MemoryRegionCache to access descriptorsPaolo Bonzini
For now, the cache is created on every virtqueue_pop. Later on, direct descriptors will be able to reuse it. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-17virtio: add virtio_*_phys_cachedPaolo Bonzini
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-17virtio: Report real progress in VQ aio poll handlerFam Zheng
In virtio_queue_host_notifier_aio_poll, not all "!virtio_queue_empty()" cases are making true progress. Currently the offending one is virtio-scsi event queue, whose handler does nothing if no event is pending. As a result aio_poll() will spin on the "non-empty" VQ and take 100% host CPU. Fix this by reporting actual progress from virtio queue aio handlers. Reported-by: Ed Swierk <eswierk@skyportsystems.com> Signed-off-by: Fam Zheng <famz@redhat.com> Tested-by: Ed Swierk <eswierk@skyportsystems.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-02-16report guest crash information in GUEST_PANICKED eventAnton Nefedov
it's not very convenient to use the crash-information property interface, so provide a CPU class callback to get the guest crash information, and pass that information in the event Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Message-Id: <1487053524-18674-3-git-send-email-den@openvz.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16cpu-exec: fix icount out-of-bounds accessPaolo Bonzini
When icount is active, tb_add_jump is surprisingly called with an out of bounds basic block index. I have no idea how that can work, but it does not seem like a good idea. Clear *last_tb for all TB_EXIT_ICOUNT_EXPIRED cases, even when all you have to do is refill icount_extra. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16hw/char/mcf_uart: QOMify the ColdFire UARTThomas Huth
Use type_init() etc. to adapt the ColdFire UART to the latest QEMU device conventions. Signed-off-by: Thomas Huth <huth@tuxfamily.org> Message-Id: <1485586582-6490-1-git-send-email-huth@tuxfamily.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16move vm_start to cpus.cClaudio Imbrenda
This patch: * moves vm_start to cpus.c. * exports qemu_vmstop_requested, since it's needed by vm_start. * extracts vm_prepare_start from vm_start; it does what vm_start did, except restarting the cpus. * vm_start now calls vm_prepare_start and then restarts the cpus. Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Message-Id: <1487092068-16562-2-git-send-email-imbrenda@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-13virtio/migration: Migrate virtio-net to VMStateDr. David Alan Gilbert
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20170203160651.19917-5-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Merge fix against Halil's removal of the '_start' field in VMSTATE_VBUFFER_MULTIPLY
2017-02-13migration: Add VMSTATE_WITH_TMPDr. David Alan Gilbert
VMSTATE_WITH_TMP is for handling structures where some calculation or rearrangement of the data needs to be performed before the data hits the wire. For example, where the value on the wire is an offset from a non-migrated base, but the data in the structure is the actual pointer. To use it, a temporary type is created and a vmsd used on that type. The first element of the type must be 'parent' a pointer back to the type of the main structure. VMSTATE_WITH_TMP takes care of allocating and freeing the temporary before running the child vmsd. The post_load/pre_save on the child vmsd can copy things from the parent to the temporary using the parent pointer and do any other calculations needed; it can then use normal VMSD entries to do the actual data storage without having to fiddle around with qemu_get_*/qemu_put_* Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20170203160651.19917-3-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-13migration: Add VMSTATE_UNUSED_VARRAY_UINT32Dr. David Alan Gilbert
VMSTATE_UNUSED_VARRAY_UINT32 is used to skip a chunk of the stream that's an n-element array; note the array size and the dynamic value read never get multiplied so there's no overflow risk. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170203160651.19917-2-dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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