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2020-06-15qdev: Convert uses of qdev_create() with CoccinelleMarkus Armbruster
This is the transformation explained in the commit before previous. Takes care of just one pattern that needs conversion. More to come in this series. Coccinelle script: @ depends on !(file in "hw/arm/highbank.c")@ expression bus, type_name, dev, expr; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr; identifier DOWN; @@ - dev = DOWN(qdev_create(bus, type_name)); + dev = DOWN(qdev_new(type_name)); ... when != dev = expr - qdev_init_nofail(DEVICE(dev)); + qdev_realize_and_unref(DEVICE(dev), bus, &error_fatal); @@ expression bus, type_name, expr; identifier dev; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr, errp; symbol true; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); @@ expression bus, type_name, expr, errp; identifier dev; symbol true; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); The first rule exempts hw/arm/highbank.c, because it matches along two control flow paths there, with different @type_name. Covered by the next commit's manual conversions. Missing #include "qapi/error.h" added manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-10-armbru@redhat.com> [Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
2020-05-15qom: Drop parameter @errp of object_property_add() & friendsMarkus Armbruster
The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
2020-04-07hw/ppc/e500.c: Handle qemu_find_file() failurePeter Maydell
If qemu_find_file() doesn't find the BIOS it returns NULL; we were passing that unchecked through to load_elf(), which assumes a non-NULL pointer and may misbehave. In practice it fails with a weird message: $ qemu-system-ppc -M ppce500 -display none -kernel nonesuch Bad address qemu-system-ppc: could not load firmware '(null)' Handle the failure case better: $ qemu-system-ppc -M ppce500 -display none -kernel nonesuch qemu-system-ppc: could not find firmware/kernel file 'nonesuch' Spotted by Coverity (CID 1238954). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20200324121216.23899-1-peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-25Merge tag 'patchew/20200219160953.13771-1-imammedo@redhat.com' of ↵Paolo Bonzini
https://github.com/patchew-project/qemu into HEAD This series removes ad hoc RAM allocation API (memory_region_allocate_system_memory) and consolidates it around hostmem backend. It allows to * resolve conflicts between global -mem-prealloc and hostmem's "policy" option, fixing premature allocation before binding policy is applied * simplify complicated memory allocation routines which had to deal with 2 ways to allocate RAM. * reuse hostmem backends of a choice for main RAM without adding extra CLI options to duplicate hostmem features. A recent case was -mem-shared, to enable vhost-user on targets that don't support hostmem backends [1] (ex: s390) * move RAM allocation from individual boards into generic machine code and provide them with prepared MemoryRegion. * clean up deprecated NUMA features which were tied to the old API (see patches) - "numa: remove deprecated -mem-path fallback to anonymous RAM" - (POSTPONED, waiting on libvirt side) "forbid '-numa node,mem' for 5.0 and newer machine types" - (POSTPONED) "numa: remove deprecated implicit RAM distribution between nodes" Introduce a new machine.memory-backend property and wrapper code that aliases global -mem-path and -mem-alloc into automatically created hostmem backend properties (provided memory-backend was not set explicitly given by user). A bulk of trivial patches then follow to incrementally convert individual boards to using machine.memory-backend provided MemoryRegion. Board conversion typically involves: * providing MachineClass::default_ram_size and MachineClass::default_ram_id so generic code could create default backend if user didn't explicitly provide memory-backend or -m options * dropping memory_region_allocate_system_memory() call * using convenience MachineState::ram MemoryRegion, which points to MemoryRegion allocated by ram-memdev On top of that for some boards: * missing ram_size checks are added (typically it were boards with fixed ram size) * ram_size fixups are replaced by checks and hard errors, forcing user to provide correct "-m" values instead of ignoring it and continuing running. After all boards are converted, the old API is removed and memory allocation routines are cleaned up.
2020-02-21ppc: free 'fdt' after reset the machinePan Nengyuan
'fdt' forgot to clean both e500 and pnv when we call 'system_reset' on ppc, this patch fix it. The leak stacks are as follow: Direct leak of 4194304 byte(s) in 4 object(s) allocated from: #0 0x7fafe37dd970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970) #1 0x7fafe2e3149d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d) #2 0x561876f7f80d in create_device_tree /mnt/sdb/qemu-new/qemu/device_tree.c:40 #3 0x561876b7ac29 in ppce500_load_device_tree /mnt/sdb/qemu-new/qemu/hw/ppc/e500.c:364 #4 0x561876b7f437 in ppce500_reset_device_tree /mnt/sdb/qemu-new/qemu/hw/ppc/e500.c:617 #5 0x56187718b1ae in qemu_devices_reset /mnt/sdb/qemu-new/qemu/hw/core/reset.c:69 #6 0x561876f6938d in qemu_system_reset /mnt/sdb/qemu-new/qemu/vl.c:1412 #7 0x561876f6a25b in main_loop_should_exit /mnt/sdb/qemu-new/qemu/vl.c:1645 #8 0x561876f6a398 in main_loop /mnt/sdb/qemu-new/qemu/vl.c:1679 #9 0x561876f7da8e in main /mnt/sdb/qemu-new/qemu/vl.c:4438 #10 0x7fafde16b812 in __libc_start_main ../csu/libc-start.c:308 #11 0x5618765c055d in _start (/mnt/sdb/qemu-new/qemu/build/ppc64-softmmu/qemu-system-ppc64+0x2b1555d) Direct leak of 1048576 byte(s) in 1 object(s) allocated from: #0 0x7fc0a6f1b970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970) #1 0x7fc0a656f49d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d) #2 0x55eb05acd2ca in pnv_dt_create /mnt/sdb/qemu-new/qemu/hw/ppc/pnv.c:507 #3 0x55eb05ace5bf in pnv_reset /mnt/sdb/qemu-new/qemu/hw/ppc/pnv.c:578 #4 0x55eb05f2f395 in qemu_system_reset /mnt/sdb/qemu-new/qemu/vl.c:1410 #5 0x55eb05f43850 in main /mnt/sdb/qemu-new/qemu/vl.c:4403 #6 0x7fc0a18a9812 in __libc_start_main ../csu/libc-start.c:308 #7 0x55eb0558655d in _start (/mnt/sdb/qemu-new/qemu/build/ppc64-softmmu/qemu-system-ppc64+0x2b1555d) Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com> Message-Id: <20200214033206.4395-1-pannengyuan@huawei.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-02-19ppc/e500: use memdev for RAMIgor Mammedov
memory_region_allocate_system_memory() API is going away, so replace it with memdev allocated MemoryRegion. The later is initialized by generic code, so board only needs to opt in to memdev scheme by providing MachineClass::default_ram_id and using MachineState::ram instead of manually initializing RAM memory region. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200219160953.13771-60-imammedo@redhat.com>
2020-02-19ppc/e500: drop RAM size fixupIgor Mammedov
If user provided non-sense RAM size, board will complain and continue running with max RAM size supported. Also RAM is going to be allocated by generic code, so it won't be possible for board to fix things up for user. Make it error message and exit to force user fix CLI, instead of accepting non-sense CLI values. While at it, replace usage of global ram_size with machine->ram_size Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200219160953.13771-59-imammedo@redhat.com>
2020-01-29hw/core/loader: Let load_elf() populate a field with CPU-specific flagsAleksandar Markovic
While loading the executable, some platforms (like AVR) need to detect CPU type that executable is built for - and, with this patch, this is enabled by reading the field 'e_flags' of the ELF header of the executable in question. The change expands functionality of the following functions: - load_elf() - load_elf_as() - load_elf_ram() - load_elf_ram_sym() The argument added to these functions is called 'pflags' and is of type 'uint32_t*' (that matches 'pointer to 'elf_word'', 'elf_word' being the type of the field 'e_flags', in both 32-bit and 64-bit variants of ELF header). Callers are allowed to pass NULL as that argument, and in such case no lookup to the field 'e_flags' will happen, and no information will be returned, of course. CC: Richard Henderson <rth@twiddle.net> CC: Peter Maydell <peter.maydell@linaro.org> CC: Edgar E. Iglesias <edgar.iglesias@gmail.com> CC: Michael Walle <michael@walle.cc> CC: Thomas Huth <huth@tuxfamily.org> CC: Laurent Vivier <laurent@vivier.eu> CC: Philippe Mathieu-Daudé <f4bug@amsat.org> CC: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com> CC: Aurelien Jarno <aurelien@aurel32.net> CC: Jia Liu <proljc@gmail.com> CC: David Gibson <david@gibson.dropbear.id.au> CC: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> CC: BALATON Zoltan <balaton@eik.bme.hu> CC: Christian Borntraeger <borntraeger@de.ibm.com> CC: Thomas Huth <thuth@redhat.com> CC: Artyom Tarasenko <atar4qemu@gmail.com> CC: Fabien Chouteau <chouteau@adacore.com> CC: KONRAD Frederic <frederic.konrad@adacore.com> CC: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com> Signed-off-by: Michael Rolnik <mrolnik@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Message-Id: <1580079311-20447-24-git-send-email-aleksandar.markovic@rt-rk.com>
2019-12-17kvm: introduce kvm_kernel_irqchip_* functionsPaolo Bonzini
The KVMState struct is opaque, so provide accessors for the fields that will be moved from current_machine to the accelerator. For now they just forward to the machine object, but this will change. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-08-16sysemu: Split sysemu/runstate.h off sysemu/sysemu.hMarkus Armbruster
sysemu/sysemu.h is a rather unfocused dumping ground for stuff related to the system-emulator. Evidence: * It's included widely: in my "build everything" tree, changing sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h, down from 5400 due to the previous two commits). * It pulls in more than a dozen additional headers. Split stuff related to run state management into its own header sysemu/runstate.h. Touching sysemu/sysemu.h now recompiles some 850 objects. qemu/uuid.h also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400 to 4200. Touching new sysemu/runstate.h recompiles some 500 objects. Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also add qemu/main-loop.h. Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190812052359.30071-30-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> [Unbreak OS-X build]
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16Include hw/hw.h exactly where neededMarkus Armbruster
In my "build everything" tree, changing hw/hw.h triggers a recompile of some 2600 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). The previous commits have left only the declaration of hw_error() in hw/hw.h. This permits dropping most of its inclusions. Touching it now recompiles less than 200 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-19-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16Include hw/irq.h a lot lessMarkus Armbruster
In my "build everything" tree, changing hw/irq.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get qemu_irq and.or qemu_irq_handler. Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to qemu/typedefs.h, and then include hw/irq.h only where it's still needed. Touching it now recompiles only some 500 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-13-armbru@redhat.com>
2019-08-16Include sysemu/reset.h a lot lessMarkus Armbruster
In my "build everything" tree, changing sysemu/reset.h triggers a recompile of some 2600 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). The main culprit is hw/hw.h, which supposedly includes it for convenience. Include sysemu/reset.h only where it's needed. Touching it now recompiles less than 200 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-9-armbru@redhat.com>
2019-07-05hw/ppc: Replace global smp variables with machine smp propertiesLike Xu
The global smp variables in ppc are replaced with smp machine properties. A local variable of the same name would be introduced in the declaration phase if it's used widely in the context OR replace it on the spot if it's only used once. No semantic changes. Signed-off-by: Like Xu <like.xu@linux.intel.com> Message-Id: <20190518205428.90532-5-like.xu@linux.intel.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-06-12Include qemu-common.h exactly where neededMarkus Armbruster
No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
2019-03-12PPC: E500: Add FSL I2C controller and integrate RTC with itAndrew Randrianasulu
Original commit message: This patch adds an emulation model for i2c controller found on most of the FSL SoCs. It also integrates the RTC (ds1338) that sits on the i2c Bus with e500 machine model. Patch was originally written by Amit Singh Tomar <amit.tomar@freescale.com> see http://patchwork.ozlabs.org/patch/431475/ I only fixed it enough for application on top of current qemu master 20b084c4b1401b7f8fbc385649d48c67b6f43d44, and hopefully fixed checkpatch errors Tested by booting Linux kernel 4.20.12. Now e500 machine doesn't need network time protocol daemon because it will have working RTC (before all timestamps on files were from 2016) Signed-off-by: Amit Singh Tomar <amit.tomar@freescale.com> Signed-off-by: Andrew Randrianasulu <randrianasulu@gmail.com> Message-Id: <20190306102812.28972-1-randrianasulu@gmail.com> [dwg: Add Kconfig stanza to define the new symbol, update MAINTAINERS] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-02-05elf: Add optional function ptr to load_elf() to parse ELF notesLiam Merwick
This patch adds an optional function pointer, 'elf_note_fn', to load_elf() which causes load_elf() to additionally parse any ELF program headers of type PT_NOTE and check to see if the ELF Note is of the type specified by the 'translate_opaque' arg. If a matching ELF Note is found then the specfied function pointer is called to process the ELF note. Passing a NULL function pointer results in ELF Notes being skipped. The first consumer of this functionality is the PVHboot support which needs to read the XEN_ELFNOTE_PHYS32_ENTRY ELF Note while loading the uncompressed kernel binary in order to discover the boot entry address for the x86/HVM direct boot ABI. Signed-off-by: Liam Merwick <liam.merwick@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-07Support u-boot noload images for arm as used by, NetBSD/evbarm GENERIC kernel.Nick Hudson
noload kernels are loaded with the u-boot image header and as a result the header size needs adding to the entry point. Fake up a hdr so the kernel image is loaded at the right address and the entry point is adjusted appropriately. The default location for the uboot file is 32MiB above bottom of DRAM. This matches the recommendation in Documentation/arm/Booting. Clarify the load_uimage API to state the passing of a load address when an image doesn't specify one, or when loading a ramdisk is expected. Adjust callers of load_uimage, etc. Signed-off-by: Nick Hudson <skrll@netbsd.org> Message-id: 11488a08-1fe0-a278-2210-deb64731107f@gmx.co.uk Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-12-21e500: simplify IRQ wiringGreg Kurz
The OpenPIC have 5 outputs per connected CPU. The machine init code hence needs a bi-dimensional array (smp_cpu lines, 5 columns) to wire up the irqs between the PIC and the CPUs. The current code first allocates an array of smp_cpus pointers to qemu_irq type, then it allocates another array of smp_cpus * 5 qemu_irq and fills the first array with pointers to each line of the second array. This is rather convoluted. Simplify the logic by introducing a structured type that describes all the OpenPIC outputs for a single CPU, ie, fixed size of 5 qemu_irq, and only allocate a smp_cpu sized array of those. This also allows to use g_new(T, n) instead of g_malloc(sizeof(T) * n) as recommended in HACKING. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-09-24Drop "qemu:" prefix from error_report() argumentsMao Zhongyi
error_report and friends already add a "qemu-system-xxx" prefix to the string, so a "qemu:" prefix is redundant in the string. Just drop it. Reported-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1537495530-580-1-git-send-email-maozhongyi@cmss.chinamobile.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-02hw/ppc: Use the IEC binary prefix definitionsPhilippe Mathieu-Daudé
It eases code review, unit is explicit. Patch generated using: $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/ and modified manually. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20180625124238.25339-33-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-05-10platform-bus-device: use device plug callback instead of machine_done notifierIgor Mammedov
platform-bus were using machine_done notifier to get and map (assign irq/mmio resources) dynamically added sysbus devices after all '-device' options had been processed. That however creates non obvious dependencies on ordering of machine_done notifiers and requires carefull line juggling to keep it working. For example see comment above create_platform_bus() and 'straitforward' arm_load_kernel() had to converted to machine_done notifier and that lead to yet another machine_done notifier to keep it working arm_register_platform_bus_fdt_creator(). Instead of hiding resource assignment in platform-bus-device to magically initialize sysbus devices, use device plug callback and assign resources explicitly at board level at the moment each -device option is being processed. That adds a bunch of machine declaration boiler plate to e500plat board, similar to ARM/x86 but gets rid of hidden machine_done notifier and would allow to remove the dependent notifiers in ARM code simplifying it and making code flow easier to follow. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Message-id: 1525691524-32265-3-git-send-email-imammedo@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-05-08ppc: e500: use g_strdup_printf() instead of snprintf()Greg Kurz
qemu-system-ppc fails to build with GCC 8.0.1: /home/hsp/src/qemu-master/hw/ppc/e500.c: In function ‘ppce500_load_device_tree’: /home/hsp/src/qemu-master/hw/ppc/e500.c:442:37: error: ‘/pic@’ directive output may be truncated writing 5 bytes into a region of size between 1 and 128 [-Werror=format-truncation=] snprintf(mpic, sizeof(mpic), "%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET); ^~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 11 and 138 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/hsp/src/qemu-master/hw/ppc/e500.c:470:39: error: ‘/global-utilities@’ directive output may be truncated writing 18 bytes into a region of size between 1 and 128 [-Werror=format-truncation=] snprintf(gutil, sizeof(gutil), "%s/global-utilities@%llx", soc, ^~~~~~~~~~~~~~~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 24 and 151 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /home/hsp/src/qemu-master/hw/ppc/e500.c:477:36: error: ‘/msi@’ directive output may be truncated writing 5 bytes into a region of size between 0 and 127 [-Werror=format-truncation=] snprintf(msi, sizeof(msi), "/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET); ^~~~~ In file included from /usr/include/stdio.h:862, from /home/hsp/src/qemu-master/include/qemu/osdep.h:68, from /home/hsp/src/qemu-master/hw/ppc/e500.c:17: /usr/include/bits/stdio2.h:64:10: note: ‘__builtin___snprintf_chk’ output between 12 and 139 bytes into a destination of size 128 return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by converting e500 to use g_strdup_printf()+g_free() instead of snprintf(). This is done globally, even for call sites that don't break build, since this is the preferred practice in QEMU. Reported-by: Howard Spoelstra <hsp.cat7@gmail.com> Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 152568372989.443627.900708381919207053.stgit@bahia.lan Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-04-27ppc: e500: switch E500 based machines to full machine definitionIgor Mammedov
Convert PPCE500Params to PCCE500MachineClass which it essentially is, and introduce PCCE500MachineState to keep track of E500 specific state instead of adding global variables or extra parameters to functions when we need to keep data beyond machine init (i.e. make it look like typical fully defined machine). It's pretty shallow conversion instead of currently used trivial DEFINE_MACHINE() macro. It adds extra 60LOC of boilerplate code of full machine definition. The patch on top[1] will use PCCE500MachineState to keep track of platform_bus device and add E500Plate specific machine class to use HOTPLUG_HANDLER for explicitly initializing dynamic sysbus devices at the time they are added instead of delaying it to machine done time by platform_bus_init_notify() which is being removed. 1) <1523551221-11612-3-git-send-email-imammedo@redhat.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Suggested-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-04-26Change references to serial_hds[] to serial_hd()Peter Maydell
Change all the uses of serial_hds[] to go via the new serial_hd() function. Code change produced with: find hw -name '*.[ch]' | xargs sed -i -e 's/serial_hds\[\([^]]*\)\]/serial_hd(\1)/g' Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20180420145249.32435-8-peter.maydell@linaro.org
2018-03-18PPC e500: Fix gap between u-boot and kernelDavid Engraf
This patch moves the gap between u-boot and kernel at the correct location. Signed-off-by: David Engraf <david.engraf@sysgo.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-12net: allow using any PCI NICs in -net or -nicPaolo Bonzini
Remove the hard-coded list of PCI NIC names; instead, fill an array using all PCI devices listed under DEVICE_CATEGORY_NETWORK. Keep the old shortcut "virtio" for virtio-net-pci. Suggested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-06PPC: e500: Fix duplicate kernel load and device tree overlapDavid Engraf
This patch fixes an incorrect behavior when the -kernel argument has been specified without -bios. In this case the kernel was loaded twice. At address 32M as a raw image and afterwards by load_elf/load_uimage at the corresponding load address. In this case the region for the device tree and the raw kernel image may overlap. The patch fixes the behavior by loading the kernel image once with load_elf/load_uimage and skips loading the raw image. When here do not use bios_name/size for the kernel and use a more generic name called payload_name/size. New in v3: dtb must be stored between kernel and initrd because Linux can handle the dtb only within the first 64MB. Add a comment to clarify the behavior. Signed-off-by: David Engraf <david.engraf@sysgo.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06hw/ppc/spapr,e500: Use new property "stdout-path" for boot consoleNikunj A Dadhania
Linux kernel commit 2a9d832cc9aae21ea827520fef635b6c49a06c6d (of: Add bindings for chosen node, stdout-path) deprecated chosen property "linux,stdout-path" and "stdout". Introduce the new property "stdout-path" and continue supporting the older property to remain compatible with existing/older firmware. This older property can be deprecated after 5 years. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-03-06openpic: move KVM-specific declarations into separate openpic_kvm.h fileMark Cave-Ayland
This is needed before the next patch because the target-dependent kvm stub uses the existing kvm_openpic_connect_vcpu() declaration, making it impossible to move the device-specific declarations into the same file without breaking ppc-linux-user compilation. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-02-09Move include qemu/option.h from qemu-common.h to actual usersMarkus Armbruster
qemu-common.h includes qemu/option.h, but most places that include the former don't actually need the latter. Drop the include, and add it to the places that actually need it. While there, drop superfluous includes of both headers, and separate #include from file comment with a blank line. This cleanup makes the number of objects depending on qemu/option.h drop from 4545 (out of 4743) to 284 in my "build everything" tree. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-20-armbru@redhat.com> [Semantic conflict with commit bdd6a90a9e in block/nvme.c resolved]
2018-02-06hw/ppc: Replace fprintf(stderr, "*\n" with error_report()Alistair Francis
Replace a large number of the fprintf(stderr, "*\n" calls with error_report(). The functions were renamed with these commands and then compiler issues where manually fixed. find ./* -type f -exec sed -i \ 'N;N;N;N;N;N;N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N;N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N;N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + find ./* -type f -exec sed -i \ 'N; {s|fprintf(stderr, "\(.*\)\\n"\(.*\));|error_report("\1"\2);|Ig}' \ {} + Some lines were then manually tweaked to pass checkpatch and some curly braces were added to match QEMU style. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Cc: qemu-ppc@nongnu.org Conversions that aren't followed by exit() dropped, because they might be inappropriate. Also trim trailing punctuation from error messages. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180203084315.20497-10-armbru@redhat.com>
2017-12-15e500: name openpic and pci host bridgeMichael Davidsaver
Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-11-08e500: ppce500_init_mpic() return device instead of IRQ arrayMichael Davidsaver
Actual number of interrupt pins isn't known in ppce500_init_mpic() so a hardcoded number was used, which causes a crash with older openpic. Instead, return the DeviceState* and change ppce500_init() to call qdev_get_gpio_in() to get only the irq pins which are needed. Signed-off-by: Michael Davidsaver <mdavidsaver@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-10-17ppc: mpc8544ds/e500plat: use generic cpu_model parsingIgor Mammedov
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>
2017-09-19cpu: make cpu_generic_init() abort QEMU on errorIgor Mammedov
Almost every user of cpu_generic_init() checks for returned NULL and then reports failure in a custom way and aborts process. Some users assume that call can't fail and don't check for failure, though they should have checked for it. In either cases cpu_generic_init() failure is fatal, so instead of checking for failure and reporting it various ways, make cpu_generic_init() report errors in consistent way and terminate QEMU on failure. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <1505318697-77161-3-git-send-email-imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-08e500: Use cpu_index instead of vcpu_dt_idSam Bobroff
The e500 platform code uses the function ppc_get_vcpu_dt_id() to get an id to put in its device tree. Which seems like it makes sense, but ppc_get_vcpu_dt_id() is actually badly named - it only differs from cpu_index in cases where you're running on KVM HV and the host's number of threads differs from the guests. Since KVM HV only supports PAPR, not e500, it doesn't make sense to use it here. Simply use the cpu_index instead (which is 'i' in this context because qemu_get_cpu(i) returns the cpu with cpu_index == i). Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com> Reviewed-by: Greg Kurz <groug@kaod.org> [dwg: Rewrote commit message] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-09-01ppc: replace cpu_ppc_init() with cpu_generic_init()Igor Mammedov
it's just a wrapper, drop it and use cpu_generic_init() directly Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Hervé Poussineau <hpoussin@reactos.org> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <1503592308-93913-26-git-send-email-imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-23shutdown: Add source information to SHUTDOWN and RESETEric Blake
Time to wire up all the call sites that request a shutdown or reset to use the enum added in the previous patch. It would have been less churn to keep the common case with no arguments as meaning guest-triggered, and only modified the host-triggered code paths, via a wrapper function, but then we'd still have to audit that I didn't miss any host-triggered spots; changing the signature forces us to double-check that I correctly categorized all callers. Since command line options can change whether a guest reset request causes an actual reset vs. a shutdown, it's easy to also add the information to reset requests. Signed-off-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> [ppc parts] Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> [SPARC part] Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x parts] Message-Id: <20170515214114.15442-5-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-02-02target-ppc: Add MMU model check for booke machinesValentin Plotkin
Machines bamboo, e500 and virtex-ml507 assume a certain MMU model, otherwise resulting in unpredictable behavior. Add apropriate checks into *_init functions. Signed-off-by: Valentin Plotkin <caliborn@sdf.org> [regarding virtex parts] Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-01-31hw/ppc: QOM'ify e500.cxiaoqiang zhao
Drop the old SysBus init function and use instance_init Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-09-27sysbus: Remove ignored return value of FindSysbusDeviceFuncDavid Gibson
Functions of type FindSysbusDeviceFunc currently return an integer. However, this return value is always ignored by the caller in find_sysbus_device(). This changes the function type to return void, to avoid confusion over the function semantics. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-07-01target-ppc: Eliminate redundant and incorrect function booke206_page_size_to_tlbAaron Larson
Eliminate redundant and incorrect booke206_page_size_to_tlb function from ppce500_spin.c in preference to previously existing but newly exported definition from e500.c Defect analysis: The booke206_page_size_to_tlb function in e500.c was updated in commit 2bd9543 "ppc: booke206: use MAV=2.0 TSIZE definition, fix 4G pages" to reflect a change in the definition of MAS1_TSIZE_SHIFT from 8 (corresponding to a min TLB page size of 4kb) to a value of 7 (TLB page size 2k). The booke206_page_size_to_tlb() function defined in ppce500_spin.c was never updated to reflect the change in MAS1_TSIZE_SHIFT. In http://lists.nongnu.org/archive/html/qemu-ppc/2016-06/msg00533.html, Scott Wood suggested this "root cause" explanation: SW> The patch that changed MAS1_TSIZE_SHIFT from 8 to 7 was around the SW> same time as the patch that added this code, which is probably why SW> adjusting it got missed. Commit 2bd9543cd3 did update the SW> equivalent code in ppce500_mpc8544ds.c, which now resides in SW> hw/ppc/e500.c and has been changed to not assume a power-of-2 SW> size. The ppce500_spin version should be eliminated. Signed-off-by: Aaron Larson <alarson@ddci.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-22include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-04loader: Add data swap option to load-elfPeter Crosthwaite
Some CPUs are of an opposite data-endianness to other components in the system. Sometimes elfs have the data sections layed out with this CPU data-endianness accounting for when loaded via the CPU, so byte swaps (relative to other system components) will occur. The leading example, is ARM's BE32 mode, which is is basically LE with address manipulation on half-word and byte accesses to access the hw/byte reversed address. This means that word data is invariant across LE and BE32. This also means that instructions are still LE. The expectation is that the elf will be loaded via the CPU in this endianness scheme, which means the data in the elf is reversed at compile time. As QEMU loads via the system memory directly, rather than the CPU, we need a mechanism to reverse elf data endianness to implement this possibility. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-01-29ppc: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-6-git-send-email-peter.maydell@linaro.org
2016-01-13error: Use error_reportf_err() where it makes obvious senseMarkus Armbruster
Done with this Coccinelle semantic patch @@ expression FMT, E, S; expression list ARGS; @@ - error_report(FMT, ARGS, error_get_pretty(E)); + error_reportf_err(E, FMT/*@@@*/, ARGS); ( - error_free(E); | exit(S); | abort(); ) followed by a replace of '%s"/*@@@*/' by '"' and some line rewrapping, because I can't figure out how to make Coccinelle transform strings. We now use the error whole instead of just its message obtained with error_get_pretty(). This avoids suppressing its hint (see commit 50b7b00), but I can't see how the errors touched in this commit could come with hints. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1450452927-8346-12-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2015-09-25ppc: Rename ELF_MACHINE to be PPC specificPeter Crosthwaite
Rename ELF_MACHINE to be PPC specific. This is used as-is by the various PPC bootloaders and is locally defined to ELF_MACHINE in linux user in PPC specific ifdeffery. This removes another architecture specific definition from the global namespace (as desired by multi-arch). Cc: Alexander Graf <agraf@suse.de> Cc: qemu-ppc@nongnu.org Reviewed-by: Richard Henderson <rth@twiddle.net> Acked-By: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-20kvm_ppc: remove kvmppc_timer_hackPaolo Bonzini
QEMU does have an I/O thread now, that can be interrupted at any time because the VCPU thread runs outside the iothread mutex. Therefore, the kvmppc_timer_hack is obsolete. Remove it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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