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2018-07-02hw: Directly use "qemu/units.h" instead of "qemu/cutils.h"Philippe Mathieu-Daudé
These files don't use anything exposed by "qemu/cutils.h", simplify preprocessing including directly "qemu/units.h". Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts) Message-Id: <20180625124238.25339-7-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02hw: Use IEC binary prefix definitions from "qemu/units.h"Philippe Mathieu-Daudé
Code change produced with: $ git ls-files | egrep '\.[ch]$' | \ xargs sed -i -e 's/\(\W[KMGTPE]\)_BYTE/\1iB/g' Suggested-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts) Message-Id: <20180625124238.25339-6-f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28pc-dimm: get_memory_region() will not fail after realizeDavid Hildenbrand
Let's try to reduce error handling a bit. In the plug/unplug case, the device was realized and therefore we can assume that getting access to the memory region will not fail. For get_vmstate_memory_region() this is already handled that way. Document both cases. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20180619134141.29478-13-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-28pc-dimm: rename pc_dimm_memory_* to pc_dimm_*David Hildenbrand
Let's rename it to make it look more consistent. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20180619134141.29478-4-david@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-06-22spapr: Don't rewrite mmu capabilities in KVM modeDavid Gibson
Currently during KVM initialization on POWER, kvm_fixup_page_sizes() rewrites a bunch of information in the cpu state to reflect the capabilities of the host MMU and KVM. This overwrites the information that's already there reflecting how the TCG implementation of the MMU will operate. This means that we can get guest-visibly different behaviour between KVM and TCG (and between different KVM implementations). That's bad. It also prevents migration between KVM and TCG. The pseries machine type now has filtering of the pagesizes it allows the guest to use which means it can present a consistent model of the MMU across all accelerators. So, we can now replace kvm_fixup_page_sizes() with kvm_check_mmu() which merely verifies that the expected cpu model can be faithfully handled by KVM, rather than updating the cpu model to match KVM. We call kvm_check_mmu() from the spapr cpu reset code. This is a hack: conceptually it makes more sense where fixup_page_sizes() was - in the KVM cpu init path. However, doing that would require moving the platform's pagesize filtering much earlier, which would require a lot of work making further adjustments. There wouldn't be a lot of concrete point to doing that, since the only KVM implementation which has the awkward MMU restrictions is KVM HV, which can only work with an spapr guest anyway. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org>
2018-06-22spapr: Limit available pagesizes to provide a consistent guest environmentDavid Gibson
KVM HV has some limitations (deriving from the hardware) that mean not all host-cpu supported pagesizes may be usable in the guest. At present this means that KVM guests and TCG guests may see different available page sizes even if they notionally have the same vcpu model. This is confusing and also prevents migration between TCG and KVM. This patch makes the environment consistent by always allowing the same set of pagesizes. Since we can't remove the KVM limitations, we do this by always applying the same limitations it has, even to TCG guests. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-22spapr: Use maximum page size capability to simplify memory backend checkingDavid Gibson
The way we used to handle KVM allowable guest pagesizes for PAPR guests required some convoluted checking of memory attached to the guest. The allowable pagesizes advertised to the guest cpus depended on the memory which was attached at boot, but then we needed to ensure that any memory later hotplugged didn't change which pagesizes were allowed. Now that we have an explicit machine option to control the allowable maximum pagesize we can simplify this. We just check all memory backends against that declared pagesize. We check base and cold-plugged memory at reset time, and hotplugged memory at pre_plug() time. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-22spapr: Maximum (HPT) pagesize propertyDavid Gibson
The way the POWER Hash Page Table (HPT) MMU is virtualized by KVM HV means that every page that the guest puts in the pagetables must be truly physically contiguous, not just GPA-contiguous. In effect this means that an HPT guest can't use any pagesizes greater than the host page size used to back its memory. At present we handle this by changing what we advertise to the guest based on the backing pagesizes. This is pretty bad, because it means the guest sees a different environment depending on what should be host configuration details. As a start on fixing this, we add a new capability parameter to the pseries machine type which gives the maximum allowed pagesizes for an HPT guest. For now we just create and validate the parameter without making it do anything. For backwards compatibility, on older machine types we set it to the max available page size for the host. For the 3.0 machine type, we fix it to 16, the intention being to only allow HPT pagesizes up to 64kiB by default in future. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-21spapr: remove unused spapr_irq routinesCédric Le Goater
spapr_irq_alloc_block and spapr_irq_alloc() are now deprecated. Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21spapr: split the IRQ allocation sequenceCédric Le Goater
Today, when a device requests for IRQ number in a sPAPR machine, the spapr_irq_alloc() routine first scans the ICSState status array to find an empty slot and then performs the assignement of the selected numbers. Split this sequence in two distinct routines : spapr_irq_find() for lookups and spapr_irq_claim() for claiming the IRQ numbers. This will ease the introduction of a static layout of IRQ numbers. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21spapr: Add cpu_apply hook to capabilitiesDavid Gibson
spapr capabilities have an apply hook to actually activate (or deactivate) the feature in the system at reset time. However, a number of capabilities affect the setup of cpus, and need to be applied to each of them - including hotplugged cpus for extra complication. To make this simpler, add an optional cpu_apply hook that is called from spapr_cpu_reset(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org>
2018-06-21spapr: Compute effective capability values earlierDavid Gibson
Previously, the effective values of the various spapr capability flags were only determined at machine reset time. That was a lazy way of making sure it was after cpu initialization so it could use the cpu object to inform the defaults. But we've now improved the compat checking code so that we don't need to instantiate the cpus to use it. That lets us move the resolution of the capability defaults much earlier. This is going to be necessary for some future capabilities. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org>
2018-06-21target/ppc: Allow cpu compatiblity checks based on type, not instanceDavid Gibson
ppc_check_compat() is used in a number of places to check if a cpu object supports a certain compatiblity mode, subject to various constraints. It takes a PowerPCCPU *, however it really only depends on the cpu's class. We have upcoming cases where it would be useful to make compatibility checks before we fully instantiate the cpu objects. ppc_type_check_compat() will now make an equivalent check, but based on a CPU's QOM typename instead of an instantiated CPU object. We make use of the new interface in several places in spapr, where we're essentially making a global check, rather than one specific to a particular cpu. This avoids some ugly uses of first_cpu to grab a "representative" instance. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Cédric Le Goater <clg@kaod.org>
2018-06-21ppc/pnv: consolidate the creation of the ISA bus device treeCédric Le Goater
The device tree node of the ISA bus was being partially done in different places. Move all the nodes creation under the same routine. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21ppc/pnv: introduce Pnv8Chip and Pnv9Chip modelsCédric Le Goater
It introduces a base PnvChip class from which the specific processor chip classes, Pnv8Chip and Pnv9Chip, inherit. Each of them needs to define an init and a realize routine which will create the controllers of the target processor. For the moment, the base PnvChip class handles the XSCOM bus and the cores. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21spapr_cpu_core: migrate VPA related stateGreg Kurz
QEMU implements the "Shared Processor LPAR" (SPLPAR) option, which allows the hypervisor to time-slice a physical processor into multiple virtual processor. The intent is to allow more guests to run, and to optimize processor utilization. The guest OS can cede idle VCPUs, so that their processing capacity may be used by other VCPUs, with the H_CEDE hcall. The guest OS can also optimize spinlocks, by confering the time-slice of a spinning VCPU to the spinlock holder if it's currently notrunning, with the H_CONFER hcall. Both hcalls depend on a "Virtual Processor Area" (VPA) to be registered by the guest OS, generally during early boot. Other per-VCPU areas can be registered: the "SLB Shadow Buffer" which allows a more efficient dispatching of VCPUs, and the "Dispatch Trace Log Buffer" (DTL) which is used to compute time stolen by the hypervisor. Both DTL and SLB Shadow areas depend on the VPA to be registered. The VPA/SLB Shadow/DTL are state that QEMU should migrate, but this doesn't happen, for no apparent reason other than it was just never coded. This causes the features listed above to stop working after migration, and it breaks the logic of the H_REGISTER_VPA hcall in the destination. The VPA is set at the guest request, ie, we don't have to migrate it before the guest has actually set it. This patch hence adds an "spapr_cpu/vpa" subsection to the recently introduced per-CPU machine data migration stream. Since DTL and SLB Shadow are optional and both depend on VPA, they get their own subsections "spapr_cpu/vpa/slb_shadow" and "spapr_cpu/vpa/dtl" hanging from the "spapr_cpu/vpa" subsection. Note that this won't break migration to older QEMUs. Is is already handled by only registering the vmstate handler for per-CPU data with newer machine types. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21spapr_cpu_core: migrate per-CPU dataGreg Kurz
A per-CPU machine data pointer was recently added to PowerPCCPU. The motivation is to to hide platform specific details from the core CPU code. This per-CPU data can hold state which is relevant to the guest though, eg, Virtual Processor Areas, and we should migrate this state. This patch adds the plumbing so that we can migrate the per-CPU data for PAPR guests. We only do this for newer machine types for the sake of backward compatibility. No state is migrated for the moment: the vmstate_spapr_cpu_state structure will be populated by subsequent patches. Signed-off-by: Greg Kurz <groug@kaod.org> [dwg: Fix some trivial spelling and spacing errors] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21ppc/pnv: introduce a new isa_create() operation to the chip modelCédric Le Goater
This moves the details of the ISA bus creation under the LPC model but more important, the new PnvChip operation will let us choose the chip class to use when we introduce the different chip classes for Power9 and Power8. It hides away the processor chip controllers from the machine. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-21ppc/pnv: introduce a new intc_create() operation to the chip modelCédric Le Goater
On Power9, the thread interrupt presenter has a different type and is linked to the chip owning the cores. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-18spapr: fix xics_system_init() error pathGreg Kurz
Commit 3d85885a1b1f3 tried to fix error handling, but it actually went into the wrong direction by dropping the local Error *. In the default KVM case, the rationale is to try the in-kernel XICS first, and if not possible, to fallback to userland XICS. Passing errp everywhere makes this fallback impossible if errp is &error_fatal (which happens to be the case). And anyway, if the caller would pass a regular &local_err, things would be worse: we could possibly pass an already set *errp to error_setg() and crash, or return an error even in case of success. So we definitely need a local Error * and only propagate it when we're done with the fallback logic. This is what this patch does. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16target/ppc, spapr: Move VPA information to machine_dataDavid Gibson
CPUPPCState currently contains a number of fields containing the state of the VPA. The VPA is a PAPR specific concept covering several guest/host shared memory areas used to communicate some information with the hypervisor. As a PAPR concept this is really machine specific information, although it is per-cpu, so it doesn't really belong in the core CPU state structure. There's also other information that's per-cpu, but platform/machine specific. So create a (void *)machine_data in PowerPCCPU which can be used by the machine to locate per-cpu data. Intialization, lifetime and cleanup of machine_data is entirely up to the machine type. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Tested-by: Greg Kurz <groug@kaod.org>
2018-06-16ppc/pnv: introduce a pnv_chip_core_realize() routineCédric Le Goater
This extracts from the PvChip realize routine the part creating the cores. On Power9, we will need to create the cores after the Xive interrupt controller is created. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16spapr_cpu_core: introduce spapr_create_vcpu()Greg Kurz
This moves some code out from spapr_cpu_core_realize() for clarity. No functional change. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16spapr_cpu_core: add missing rollback on realization pathGreg Kurz
The spapr_realize_vcpu() function doesn't rollback in case of error. This isn't a problem with coldplugged CPUs because the machine won't start and QEMU will exit. Hotplug is a different story though: the CPU thread is started under object_property_set_bool() and it assumes it can access the CPU object. If icp_create() fails, we return an error without unregistering the reset handler for this CPU, and we let the underlying QEMU thread for this CPU alive. Since spapr_cpu_core_realize() doesn't care to unrealize already realized CPUs either, but happily frees all of them anyway, the CPU thread crashes instantly: (qemu) device_add host-spapr-cpu-core,core-id=1,id=gku GKU: failing icp_create (cpu 0x11497fd0) ^^^^^^^^^^ Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffee3feaa0 (LWP 24725)] 0x00000000104c8374 in object_dynamic_cast_assert (obj=0x11497fd0, ^^^^^^^^^^^^^^ pointer to the CPU object 623 trace_object_dynamic_cast_assert(obj ? obj->class->type->name (gdb) p obj->class->type $1 = (Type) 0x0 (gdb) p * obj $2 = {class = 0x10ea9c10, free = 0x11244620, ^^^^^^^^^^ should be g_free (gdb) p g_free $3 = {<text variable, no debug info>} 0x7ffff282bef0 <g_free> obj is a dangling pointer to the CPU that was just destroyed in spapr_cpu_core_realize(). This patch adds proper rollback to both spapr_realize_vcpu() and spapr_cpu_core_realize(). Signed-off-by: Greg Kurz <groug@kaod.org> [dwg: Fixed a conflict due to a change in my tree] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16spapr_cpu_core: fix potential leak in spapr_cpu_core_realize()Greg Kurz
Commit 94ad93bd97684 (QEMU 2.12) switched to instantiate CPUs separately but it missed to adapt the error path accordingly. If something fails in the CPU creation loop, then the CPU object that was just created is leaked. The error paths in this function are a bit obfuscated, and adding yet another label to free this CPU object makes it worse. We should move the block of the loop to a separate function, with a proper rollback path, but this is a bigger cleanup. For now, let's just fix the bug by adding the missing calls to object_unref(). This will allow easier backport to older QEMU versions. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16spapr_cpu_core: convert last snprintf() to g_strdup_printf()Greg Kurz
Because this is the preferred practice in QEMU. Signed-off-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16pnv: Add cpu unrealize pathDavid Gibson
Currently we don't have any unrealize path for pnv cpu cores. We get away with this because we don't yet support cpu hotplug for pnv. However, we're going to want it eventually, and in the meantime, it makes it non-obvious why there are a bunch of allocations on the realize() path that don't have matching frees. So, implement the missing unrealize path. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16pnv: Clean up cpu realize pathDavid Gibson
pnv_cpu_init() is only called from the the pnv cpu core realize path, and really only can be called from there. So fold it into its caller, which we also rename for brevity. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16pnv_core: Allocate cpu thread objects individuallyDavid Gibson
Currently, we allocate space for all the cpu objects within a single core in one big block. This was copied from an older version of the spapr code and requires some ugly pointer manipulation to extract the individual objects. This design was due to a misunderstanding of qemu lifetime conventions and has already been changed in spapr (in 94ad93bd "spapr_cpu_core: instantiate CPUs separately". Make an equivalent change in pnv_core to get rid of the nasty pointer arithmetic. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16pnv: Fix some error handling cpu realize()David Gibson
In pnv_core_realize() we call two functions with an Error * parameter in succession, which will go badly if they both cause errors. In fact, a failure in either of them indicates a qemu internal error, so we can just use &error_abort in both cases. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16spapr: Clean up cpu realize/unrealize pathsDavid Gibson
spapr_cpu_init() and spapr_cpu_destroy() are only called from the spapr cpu core realize/unrealize paths, and really can only be called from there. Those are all short functions, so fold the pairs together for simplicity. While we're there rename some functions and change some parameter types for brevity and clarity. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Greg Kurz <groug@kaod.org>
2018-06-16mac_newworld: add PMU deviceMark Cave-Ayland
The PMU device supercedes the CUDA device found on older New World Macs and is supported by a larger number of guest OSs from OS 9 to OS X 10.5. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16mac_newworld: add gpios to macio devices with PMU enabledMark Cave-Ayland
PMU-enabled New World Macs expose their GPIOs via a separate memory region within the macio device. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16mac_newworld: add via machine option to control mac99 VIA/ADB configurationMark Cave-Ayland
This option allows the VIA configuration to be controlled between 3 different possible setups: cuda, pmu-adb and pmu with USB rather than ADB keyboard/mouse. For the moment we don't do anything with the configuration except to pass it to the macio device (the via-cuda parent) and also to the firmware via the fw_cfg interface so that it can present the correct device tree. The default is cuda which is the current default and so will have no change in behaviour. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16ppc: introduce Core99MachinesState for the mac99 machineMark Cave-Ayland
This is in preparation for adding configuration controlled via machine options. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16spapr: fix leak in h_client_architecture_support()Greg Kurz
If the negotiated compat mode can't be set, but raw mode is supported, we decide to ignore the error. An so, we should free it to prevent a memory leak. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-16ppc/spapr_caps: Don't disable cap_cfpc on POWER8 by defaultSuraj Jitindar Singh
In default_caps_with_cpu() we set spapr_cap_cfpc to broken for POWER8 processors and before. Since we no longer require private l1d cache on POWER8 for this cap to be set to workaround change this to default to broken for POWER7 processors and before. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-15iommu: Add IOMMU index argument to translate methodPeter Maydell
Add an IOMMU index argument to the translate method of IOMMUs. Since all of our current IOMMU implementations support only a single IOMMU index, this has no effect on the behaviour. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180604152941.20374-4-peter.maydell@linaro.org
2018-06-15iommu: Add IOMMU index argument to notifier APIsPeter Maydell
Add support for multiple IOMMU indexes to the IOMMU notifier APIs. When initializing a notifier with iommu_notifier_init(), the caller must pass the IOMMU index that it is interested in. When a change happens, the IOMMU implementation must pass memory_region_notify_iommu() the IOMMU index that has changed and that notifiers must be called for. IOMMUs which support only a single index don't need to change. Callers which only really support working with IOMMUs with a single index can use the result of passing MEMTXATTRS_UNSPECIFIED to memory_region_iommu_attrs_to_index(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180604152941.20374-3-peter.maydell@linaro.org
2018-06-13Purge uses of banned g_assert_FOO()Markus Armbruster
We banned use of certain g_assert_FOO() functions outside tests, and made checkpatch.pl flag them (commit 6e9389563e5). We neglected to purge existing uses. Do that now. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180608170231.27912-1-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: John Snow <jsnow@redhat.com>
2018-06-12spapr_pci: Remove unhelpful pagesize warningDavid Gibson
By default, the IOMMU model built into the spapr virtual PCI host bridge supports 4kiB and 64kiB IOMMU page sizes. However this can be overridden which may be desirable to allow larger IOMMU page sizes when running a guest with hugepage backing and passthrough devices. For that reason a warning was printed when the device wasn't configured to allow the pagesize with which guest RAM is backed. Experience has proven, however, that this message is more confusing than useful. Worse it sometimes makes little sense when the host-available page sizes don't match those available on the guest, which can happen with a POWER8 guest running on a POWER9 KVM host. Long term we do want better handling to allow large IOMMU page sizes to be used, but for now this parameter and warning don't really accomplish it. So, remove the message, pending a better solution. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12ppc/pnv: fix LPC HC firmware address spaceCédric Le Goater
A specific MemoryRegion is required for the LPC HC Firmware address space. Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: handle cpu core unplug via hotplug handler chainDavid Hildenbrand
Factor out cpu core unplug into separate function from spapr_core_release(). Then use generic hotplug_handler_unplug() to trigger cpu core unplug, which would call spapr_machine_device_unplug() -> spapr_core_unplug() in the end. This way unplug operation is not buried in spapr internals and located in the same place like in other targets, following similar logic/call chain across targets. Acked-by: Igor Mammedov <imammedo@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: handle pc-dimm unplug via hotplug handler chainDavid Hildenbrand
Factor out memory unplug into separate function from spapr_lmb_release(). Then use generic hotplug_handler_unplug() to trigger memory unplug, which will call spapr_machine_device_unplug() -> spapr_memory_unplug() in the end. This way unplug operation is not buried in lmb internals and located in the same place like in other targets, following similar logic/call chain across targets. Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: introduce machine unplug handlerDavid Hildenbrand
We'll be handling unplug of e.g. CPUs and PCDIMMs via the general hotplug handler soon, so let's add that handler function. Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: move memory hotplug support check into spapr_memory_pre_plug()David Hildenbrand
Let's finish cleaning up the hotplug handler. This check can be performed in the pre_plug code as the very first thing. Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: move lookup of the node into spapr_memory_plug()David Hildenbrand
Let's clean the hotplug handler up by moving lookup of the node into the function where it is actually being used. Signed-off-by: David Hildenbrand <david@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12spapr: no need to verify the nodeDavid Hildenbrand
The node property can always be queried and the value has already been verified in pc_dimm_realize(). Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12ppc: remove obsolete macio_init() definition from mac.hMark Cave-Ayland
Commits b6712ea391 removed the macio_init() function but missed the header prototype in mac.h. Remove it since it is no longer needed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-06-12ppc: remove obsolete pci_pmac_init() definitions from mac.hMark Cave-Ayland
Commits 7b19318bee and 8ce3f743c7 removed the pci_pmac_init() and pci_pmac_u3_init() functions but missed the header prototypes in mac.h. Remove them since they are no longer needed. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>