Commit Graph

73749 Commits

Author SHA1 Message Date
Cédric Le Goater
5373c61d6a ppc/pnv: Clarify how the TIMA is accessed on a multichip system
The TIMA region gives access to the thread interrupt context registers
of a CPU. It is mapped at the same address on all chips and can be
accessed by any CPU of the system. To identify the chip from which the
access is being done, the PowerBUS uses a 'chip' field in the
load/store messages. QEMU does not model these messages, instead, we
extract the chip id from the CPU PIR and do a lookup at the machine
level to fetch the targeted interrupt controller.

Introduce pnv_get_chip() and pnv_xive_tm_get_xive() helpers to clarify
this process in pnv_xive_get_tctx(). The latter will be removed in the
subsequent patches but the same principle will be kept.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-14-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Greg Kurz
74f23d4332 spapr/xive: Configure number of servers in KVM
The XIVE KVM devices now has an attribute to configure the number of
interrupt servers. This allows to greatly optimize the usage of the VP
space in the XIVE HW, and thus to start a lot more VMs.

Only set this attribute if available in order to support older POWER9
KVM.

The XIVE KVM device now reports the exhaustion of VPs upon the
connection of the first VCPU. Check that in order to have a chance
to provide a hint to the user.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157478679392.67101.7843580591407950866.stgit@bahia.tlslab.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Greg Kurz
894ea3ecd3 spapr/xics: Configure number of servers in KVM
The XICS-on-XIVE KVM devices now has an attribute to configure the number
of interrupt servers. This allows to greatly optimize the usage of the VP
space in the XIVE HW, and thus to start a lot more VMs.

Only set this attribute if available in order to support older POWER9 KVM
and pre-POWER9 XICS KVM devices.

The XICS-on-XIVE KVM device now reports the exhaustion of VPs upon the
connection of the first VCPU. Check that in order to have a chance to
provide a hint to the user.
`
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157478678846.67101.9660531022460517710.stgit@bahia.tlslab.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Greg Kurz
4ffb749688 spapr: Pass the maximum number of vCPUs to the KVM interrupt controller
The XIVE and XICS-on-XIVE KVM devices on POWER9 hosts can greatly reduce
their consumption of some scarce HW resources, namely Virtual Presenter
identifiers, if they know the maximum number of vCPUs that may run in the
VM.

Prepare ground for this by passing the value down to xics_kvm_connect()
and kvmppc_xive_connect(). This is purely mechanical, no functional
change.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157478678301.67101.2717368060417156338.stgit@bahia.tlslab.ibm.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Greg Kurz
2a886794f1 linux-headers: Update
Update to mainline commit be2eca94d144 ("Merge tag 'for-linus-5.5-1'`
of git://github.com/cminyard/linux-ipmi")

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157478677756.67101.11558821804418331832.stgit@bahia.tlslab.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
4fb42350dc ppc/xive: Extend the TIMA operation with a XivePresenter parameter
The TIMA operations are performed on behalf of the XIVE IVPE sub-engine
(Presenter) on the thread interrupt context registers. The current
operations supported by the model are simple and do not require access
to the controller but more complex operations will need access to the
controller NVT table and to its configuration.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-13-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
5662f29167 ppc/xive: Use the XiveFabric and XivePresenter interfaces
Now that the machines have handlers implementing the XiveFabric and
XivePresenter interfaces, remove xive_presenter_match() and make use
of the 'match_nvt' handler of the machine.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-12-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
932de7aef8 ppc/spapr: Implement the XiveFabric interface
The CAM line matching sequence in the pseries machine does not change
much apart from the use of the new QOM interfaces. There is an extra
indirection because of the sPAPR IRQ backend of the machine. Only the
XIVE backend implements the new 'match_nvt' handler.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-11-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
c722579e8c ppc/pnv: Implement the XiveFabric interface
The CAM line matching on the PowerNV machine now scans all chips of
the system and all CPUs of a chip to find a dispatched NVT in the
thread contexts.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
d3eb47a2a1 ppc/xive: Introduce a XiveFabric interface
The XiveFabric QOM interface acts as the PowerBUS interface between
the interrupt controller and the system and should be implemented by
the QEMU machine. On HW, the XIVE sub-engine is responsible for the
communication with the other chip is the Common Queue (CQ) bridge
unit.

This interface offers a 'match_nvt' handler to perform the CAM line
matching when looking for a XIVE Presenter with a dispatched NVT.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-9-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
119eaa9d11 ppc/pnv: Fix TIMA indirect access
When the TIMA of a CPU needs to be accessed from the indirect page,
the thread id of the target CPU is first stored in the PC_TCTXT_INDIR0
register. This thread id is relative to the chip and not to the system.

Introduce a helper routine to look for a CPU of a given PIR and fix
pnv_xive_get_indirect_tctx() to scan only the threads of the local
chip and not the whole machine.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-8-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:48 +11:00
Cédric Le Goater
5014c60261 ppc/pnv: Introduce a pnv_xive_is_cpu_enabled() helper
and use this helper to exclude CPUs which are not enabled in the XIVE
controller.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
4a89e20458 ppc: Introduce a ppc_cpu_pir() helper
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-6-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
feecc6a043 ppc/pnv: Loop on the threads of the chip to find a matching NVT
CPU_FOREACH() loops on all the CPUs of the machine which is incorrect.
Each XIVE Presenter should scan only the HW threads of the chip it
belongs to.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-5-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
4fa28f2390 ppc/pnv: Instantiate cores separately
Allocating a big void * array to store multiple objects isn't a
recommended practice for various reasons:
 - no compile time type checking
 - potential dangling pointers if a reference on an individual is
  taken and the array is freed later on
 - duplicate boiler plate everywhere the array is browsed through

Allocate an array of pointers and populate it instead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
f87dae18d8 ppc/xive: Implement the XivePresenter interface
Each XIVE Router model, sPAPR and PowerNV, now implements the 'match_nvt'
handler of the XivePresenter QOM interface. This is simply moving code
and taking into account the new API.

To be noted that the xive_router_get_tctx() helper is not used anymore
when doing CAM matching and will be removed later on after other changes.

The XIVE presenter model is still too simple for the PowerNV machine
and the CAM matching algo is not correct on multichip system. Subsequent
patches will introduce more changes to scan all chips of the system.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
13bee8521c ppc/xive: Introduce a XivePresenter interface
When the XIVE IVRE sub-engine (XiveRouter) looks for a Notification
Virtual Target (NVT) to notify, it broadcasts a message on the
PowerBUS to find an XIVE IVPE sub-engine (Presenter) with the NVT
dispatched on one of its HW threads, and then forwards the
notification if any response was received.

The current XIVE presenter model is sufficient for the pseries machine
because it has a single interrupt controller device, but the PowerNV
machine can have multiple chips each having its own interrupt
controller. In this case, the XIVE presenter model is too simple and
the CAM line matching should scan all chips of the system.

To start fixing this issue, we first extend the XIVE Router model with
a new XivePresenter QOM interface representing the XIVE IVPE
sub-engine. This interface exposes a 'match_nvt' handler which the
sPAPR and PowerNV XIVE Router models will need to implement to perform
the CAM line matching.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
e2392d4395 ppc/pnv: Create BMC devices at machine init
The BMC of the OpenPOWER systems monitors the machine state using
sensors, controls the power and controls the access to the PNOR flash
device containing the firmware image required to boot the host.

QEMU models the power cycle process, access to the sensors and access
to the PNOR device. But, for these features to be available, the QEMU
PowerNV machine needs two extras devices on the command line, an IPMI
BT device for communication and a BMC backend device:

  -device ipmi-bmc-sim,id=bmc0 -device isa-ipmi-bt,bmc=bmc0,irq=10

The BMC properties are then defined accordingly in the device tree and
OPAL self adapts. If a BMC device and an IPMI BT device are not
available, OPAL does not try to communicate with the BMC in any
manner. This is not how real systems behave.

To be closer to the default behavior, create an IPMI BMC simulator
device and an IPMI BT device at machine initialization time. We loose
the ability to define an external BMC device but there are benefits:

  - a better match with real systems,
  - a better test coverage of the OPAL code,
  - system powerdown and reset commands that work,
  - a QEMU device tree compliant with the specifications (*).

(*) Still needs a MBOX device.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191121162340.11049-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
ca661fae81 ppc/pnv: Add HIOMAP commands
This activates HIOMAP support on the QEMU PowerNV machine. The PnvPnor
model is used to access the flash contents. The model simply maps the
contents at a fix offset and enables or disables the mapping.

HIOMAP Protocol description :

  https://github.com/openbmc/hiomapd/blob/master/Documentation/protocol.md

Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191028070027.22752-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
ed8da05cdb ipmi: Add support to customize OEM functions
The routine ipmi_register_oem_netfn() lets external modules register
command handlers for OEM functions. Required for the PowerNV machine.

Cc: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191028070027.22752-2-clg@kaod.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
1c27b252e7 ppc/xive: Check V bit in TM_PULL_POOL_CTX
A context should be 'valid' when pulled from the thread interrupt
context registers.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-8-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
7065d0670a ppc/xive: Introduce OS CAM line helpers
The OS CAM line has a special encoding exploited by the HW. Provide
helper routines to hide the details to the TIMA command handlers. This
also clarifies the endianness of different variables : 'qw1w2' is
big-endian and 'cam' is native.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
cd55b1272e ppc/pnv: Quiesce some XIVE errors
When dumping the END and NVT tables, the error logging is too noisy.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-6-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
58246041d3 xive/kvm: Trigger interrupts from userspace
When using the XIVE KVM device, the trigger page is directly accessible
in QEMU. Unlike with XICS, no need to ask KVM to fire the interrupt. A
simple store on the trigger page does the job.

Just call xive_esb_trigger().

This may improve performance of emulated devices that go through
qemu_set_irq(), eg. virtio devices created with ioeventfd=off or
configured by the guest to use LSI interrupts, which aren't really
recommended setups.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157408992731.494439.3405812941731584740.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
7aa22e1809 ppc/pnv: Remove pnv_xive_vst_size() routine
pnv_xive_vst_size() tries to compute the size of a VSD table from the
information given by FW. The number of entries of the table are
deduced from the result and the MMIO regions of the ESBs and the END
ESBs are then resized accordingly with the computed value. This
reduces the number of elements that can be addressed by the ESB pages.

The maximum number of elements of a direct table can contain is simply:

   Table size / sizeof(XIVE structure)

An indirect table is a one page array of VSDs pointing to subpages
containing XIVE virtual structures and the maximum number of elements
an indirect table can contain :

   (PAGE_SIZE / sizeof(vsd)) * (PAGE_SIZE / sizeof(XIVE structure))

which gives us 16M for XiveENDs, 8M for XiveNVTs. That's more than the
associated VC and PC BARS can address.

The result returned by pnv_xive_vst_size() for indirect tables is
incorrect and can not be used to reduce the size of the MMIO region of
a XIVE resource using an indirect table, such as ENDs in skiboot.

Remove pnv_xive_vst_size() and use a simpler form for direct tables
only. Keep the resizing of the MMIO region for direct tables only as
this is still useful for the ESB MMIO window.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
e6488eeba8 ppc/xive: Introduce helpers for the NVT id
Each vCPU in the system is identified with an NVT identifier which is
pushed in the OS CAM line (QW1W2) of the HW thread interrupt context
register when the vCPU is dispatched on a HW thread. This identifier
is used by the presenter subengine to find a matching target to notify
of an event. It is also used to fetch the associate NVT structure
which may contain pending interrupts that need a resend.

Add a couple of helpers for the NVT ids. The NVT space is 19 bits
wide, giving a maximum of 512K per chip.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
516883c2f1 ppc/xive: Record the IPB in the associated NVT
When an interrupt can not be presented to a vCPU, because it is not
running on any of the HW treads, the XIVE presenter updates the
Interrupt Pending Buffer register of the associated XIVE NVT
structure. This is only done if backlog is activated in the END but
this is generally the case.

The current code assumes that the fields of the NVT structure is
architected with the same layout of the thread interrupt context
registers. Fix this assumption and define an offset for the IPB
register backup value in the NVT.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191115162436.30548-2-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
95bd61c4df ppc/pnv: Add a LPC "ranges" property
And fix a typo in the MEM address space definition.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191118091908.15044-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
818a6d30e0 spapr: Abort if XICS interrupt controller cannot be initialized
Failing to set any of the ICS property should really never happen:
- object_property_add_child() always succeed unless the child object
  already has a parent, which isn't the case here obviously since the
  ICS has just been created with object_new()
- the ICS has an "nr-irqs" property than can be set as long as the ICS
  isn't realized

In both cases, an error indicates there is a bug in QEMU. Propagating the
error, ie. exiting QEMU since spapr_irq_init() is called with &error_fatal
doesn't make much sense. Abort instead. This is consistent with what is
done with XIVE : both qdev_create() and qdev_prop_set_uint32() abort QEMU
on error.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403285265.409804.8683093665795248192.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
e388d66b40 xics: Link ICP_PROP_CPU property to ICPState::cs pointer
The ICP object has both a pointer and an ICP_PROP_CPU property pointing
to the cpu. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitly sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403284709.409804.16142099083325945141.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
b4a378a7c5 xics: Link ICP_PROP_XICS property to ICPState::xics pointer
The ICP object has both a pointer and an ICP_PROP_XICS property pointing
to the XICS fabric. Confusing bugs could arise if these ever go out of
sync.

Change the property definition so that it explicitly sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403284152.409804.17114564311521923733.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
b015a98094 xics: Link ICS_PROP_XICS property to ICSState::xics pointer
The ICS object has both a pointer and an ICS_PROP_XICS property pointing
to the XICS fabric. Confusing bugs could arise if these ever go out of
sync.

Change the property definition so that it explicitely sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403283596.409804.17347207690271971987.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
7ae54cc3a0 ppc/pnv: Link "chip" property to PnvXive::chip pointer
The XIVE object has both a pointer and a "chip" property pointing to the
chip object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383336564.165747.10250365296928442882.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
158e17a65e ppc/pnv: Link "chip" property to PnvCore::chip pointer
The core object has both a pointer and a "chip" property pointing to the
chip object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383336007.165747.1524120147081367440.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
f2582acf99 ppc/pnv: Link "chip" property to PnvHomer::chip pointer
The homer object has both a pointer and a "chip" property pointing to the
chip object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383335451.165747.32301068645427993.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
ee3d27138d ppc/pnv: Link "psi" property to PnvOCC::psi pointer
The OCC object has both a pointer and a "psi" property pointing to the
PSI object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383334894.165747.7617090757862105199.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
b63f389366 ppc/pnv: Link "psi" property to PnvLpc::psi pointer
The LPC object has both a pointer and a "psi" property pointing to the
PSI object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383334342.165747.3159314903077305653.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
0ab2316e9e xive: Link "xive" property to XiveEndSource::xrtr pointer
The END source object has both a pointer and a "xive" property pointing to
the router object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383333784.165747.5298512574054268786.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
82ea3a1b29 xive: Link "xive" property to XiveSource::xive pointer
The source object has both a pointer and a "xive" property pointing to the
notifier object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.
The property isn't optional : not being able to set the link is a bug
and QEMU should rather abort than exit in this case.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383333227.165747.12901571295951957951.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
411c2a619e xive: Link "cpu" property to XiveTCTX::cs pointer
The TCTX object has both a pointer and a "cpu" property pointing to the
vCPU object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383332669.165747.2484056603605646820.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Greg Kurz
719ed8461f ppc/pnv: Drop "chip" link from POWER9 PSI object
It has no apparent user.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383383118.166856.2588933416368211047.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
ccb099b3bf ppc/pnv: Add a "/qemu" device tree node
It helps skiboot identifying that is running on a QEMU platform. The
compatible string will define the POWERPC processor version.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191106142129.4908-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Cédric Le Goater
35dde57662 ppc/pnv: Add a PNOR model
On a POWERPC PowerNV system, the host firmware is stored in a PNOR
flash chip which contents is mapped on the LPC bus. This model adds a
simple dummy device to map the contents of a block device in the host
address space.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191021131215.3693-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-12-17 10:39:47 +11:00
Wainer dos Santos Moschetta
d3ca7bb599 python/qemu: accel: Add tcg_available() method
This adds a method to check if the tcg accelerator is enabled
in the QEMU binary.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191216191438.93418-5-wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 18:39:04 -05:00
Wainer dos Santos Moschetta
53a049d7d7 python/qemu: accel: Strengthen kvm_available() checks
Currently kvm_available() checks for the presence of kvm module
and, if target and host arches don't mismatch. This patch adds
an 3rd checking: if QEMU binary was compiled with kvm
support.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191216191438.93418-4-wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 18:35:09 -05:00
Wainer dos Santos Moschetta
1650c3e304 python/qemu: accel: Add list_accel() method
Since commit cbe6d6365a the command `qemu -accel help` returns
the list of accelerators enabled in the QEMU binary. This adds
the list_accel() method which return that same list.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20191216191438.93418-3-wainersm@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 18:31:32 -05:00
Wainer dos Santos Moschetta
8b272e0018 python/qemu: Move kvm_available() to its own module
This creates the 'accel' Python module to be the home for
utilities that deal with accelerators. Also moved kvm_available()
from __init__.py to this new module.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191216191438.93418-2-wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 18:24:02 -05:00
Cleber Rosa
2d320ad188 Acceptance tests: use relative location for tests
An Avocado Test ID[1] is composed by a number of components, but it
starts with the Test Name, usually a file system location that was
given to the loader.

Because the source directory is being given as a prefix to the
"tests/acceptance" directory containing the acceptance tests, the test
names will needlessly include the directory the user is using to host
the QEMU sources (and/or build tree).

Let's remove the source dir (or a build dir) from the path given to
the test loader.  This should give more constant names, and when using
result servers and databases, it should give the same test names
across executions from different people or from different directories.

[1] - https://avocado-framework.readthedocs.io/en/69.0/ReferenceGuide.html#test-id

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20191104151323.9883-5-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
2019-12-16 11:43:36 -05:00
Thomas Huth
43d68d0a94 hw/usb: Remove the USB bluetooth dongle device
We are going to remove the bluetooth backend, so the USB bluetooth
dongle can not work anymore. It's a completely optional device, no
board depends on it, so let's simply remove it now.

Message-Id: <20191120091014.16883-3-thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-12-16 17:24:07 +01:00
Thomas Huth
6da68df7f9 hw/arm/nseries: Replace the bluetooth chardev with a "null" chardev
We are going to remove the bitrotten bluetooth backend, so we can
not use it in the n800 and n810 machines anymore. Replace the chardev
here with a "null" chardev and stop including the "hw/bt.h" header.

I am not aware of a full working N8x0 environment that can be used to
test these machines, but the Linux kernel from the Meego project that
can be found on http://stskeeps.subnetmask.net/meego-n8x0/ still seems
to boot as far as it did before.

Message-Id: <20191120091014.16883-2-thuth@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-12-16 17:24:07 +01:00