Commit Graph

90461 Commits

Author SHA1 Message Date
David Gibson 0f514eea21 MAINTAINERS: Orphan obscure ppc platforms
There are a nunber of old embedded ppc machine types which have been little
changed and in "Odd Fixes" state for a long time.  With both myself and
Greg Kurz moving toward other areas, we no longer have the capacity to
keep reviewing and maintaining even the rare patches that come in for those
platforms.

Therefore, remove our names as reviewers and mark these platforms as
orphaned.

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>
2021-09-30 12:26:06 +10:00
David Gibson 225060a488 MAINTAINERS: Remove David & Greg as reviewers for a number of boards
Greg and I are moving towards other areas and no longer have capacity to
act as regular reviewers for several of the secondary ppc machine types.
So, remove ourselves as reviewers for Macintosh, PReP, sam460ex and
pegasos2 in MAINTAINERS.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
2021-09-30 12:26:06 +10:00
David Gibson 7ddb120dbc MAINTAINERS: Remove machine specific files from ppc TCG CPUs entry
Currently the PowerPC TCG CPUs entry in MAINTAINERS lists all of hw/ppc/
and include/hw/ppc.  Nearly all the files in those places are related to
specific ppc machine types, rather than to the actual CPUs however.  Those
machine types list their own files separately, often overlapping with this.
For greater clarity, remove these misleading entries from the TCG CPUs
stanza, leaving just hw/ppc/ppc.c and hw/ppc/ppc_booke.c which are the only
ones common to a wide range of PPC TCG cpus each.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Cédric Le Goater 179abc1fcf spapr/xive: Fix kvm_xive_source_reset trace event
The trace event was placed in the wrong routine. Move it under
kvmppc_xive_source_reset_one().

Fixes: 4e960974d4 ("xive: Add trace events")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210922070205.1235943-1-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 28d86252fc spapr_numa.c: fixes in spapr_numa_FORM2_write_rtas_tables()
This patch has a handful of modifications for the recent added
FORM2 support:

- to not allocate more than the necessary size in 'distance_table'.
At this moment the array is oversized due to allocating uint32_t for
all elements, when most of them fits in an uint8_t. Fix it by
changing the array to uint8_t and allocating the exact size;

- use stl_be_p() to store the uint32_t at the start of 'distance_table';

- use sizeof(uint32_t) to skip the uint32_t length when populating the
distances;

- use the NUMA_DISTANCE_MIN macro from sysemu/numa.h to avoid hardcoding
the local distance value.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210922122852.130054-2-danielhb413@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Bin Meng 06caae8af0 hw/intc: openpic: Clean up the styles
Correct the multi-line comment format. No functional changes.

Signed-off-by: Bin Meng <bin.meng@windriver.com>

Message-Id: <20210918032653.646370-3-bin.meng@windriver.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Bin Meng 86229b68a2 hw/intc: openpic: Drop Raven related codes
There is no machine that uses Motorola MCP750 (aka Raven) model.
Drop the related codes.

While we are here, drop the mentioning of Intel GW80314 I/O
companion chip in the comments as it has been obsolete for years,
and correct a typo too.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20210918032653.646370-2-bin.meng@windriver.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Bin Meng 457279cb49 hw/intc: openpic: Correct the reset value of IPIDR for FSL chipset
The reset value of IPIDR should be zero for Freescale chipset, per
the following 2 manuals I checked:

- P2020RM (https://www.nxp.com/webapp/Download?colCode=P2020RM)
- P4080RM (https://www.nxp.com/webapp/Download?colCode=P4080RM)

Currently it is set to 1, which leaves the IPI enabled on core 0
after power-on reset. Such may cause unexpected interrupt to be
delivered to core 0 if the IPI is triggered from core 0 to other
cores later.

Fixes: ffd5e9fe02 ("openpic: Reset IRQ source private members")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/584
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20210918032653.646370-1-bin.meng@windriver.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Cédric Le Goater 4d9b8ef9b5 target/ppc: Fix 64-bit decrementer
The current way the mask is built can overflow with a 64-bit decrementer.
Use sextract64() to extract the signed values and remove the logic to
handle negative values which has become useless.

Cc: Luis Fernando Fujita Pires <luis.pires@eldorado.org.br>
Fixes: a8dafa5251 ("target/ppc: Implement large decrementer support for TCG")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210920061203.989563-5-clg@kaod.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Cédric Le Goater af96d2e692 target/ppc: Convert debug to trace events (decrementer and IRQ)
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210920061203.989563-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 0d5ba48112 spapr_numa.c: handle auto NUMA node with no distance info
numa_complete_configuration() in hw/core/numa.c always adds a NUMA node
for the pSeries machine if none was specified, but without node distance
information for the single node created.

NUMA FORM1 affinity code didn't rely on numa_state information to do its
job, but FORM2 does. As is now, this is the result of a pSeries guest
with NUMA FORM2 affinity when no NUMA nodes is specified:

$ numactl -H
available: 1 nodes (0)
node 0 cpus: 0
node 0 size: 16222 MB
node 0 free: 15681 MB
No distance information available.

This can be amended in spapr_numa_FORM2_write_rtas_tables(). We're
enforcing that the local distance (the distance to the node to itself) is
always 10. This allows for the proper creation of the NUMA distance tables,
fixing the output of 'numactl -H' in the guest:

$ numactl -H
available: 1 nodes (0)
node 0 cpus: 0
node 0 size: 16222 MB
node 0 free: 15685 MB
node distances:
node   0
  0:  10

CC: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-8-danielhb413@gmail.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza e0eb84d4f5 spapr_numa.c: FORM2 NUMA affinity support
The main feature of FORM2 affinity support is the separation of NUMA
distances from ibm,associativity information. This allows for a more
flexible and straightforward NUMA distance assignment without relying on
complex associations between several levels of NUMA via
ibm,associativity matches. Another feature is its extensibility. This base
support contains the facilities for NUMA distance assignment, but in the
future more facilities will be added for latency, performance, bandwidth
and so on.

This patch implements the base FORM2 affinity support as follows:

- the use of FORM2 associativity is indicated by using bit 2 of byte 5
of ibm,architecture-vec-5. A FORM2 aware guest can choose to use FORM1
or FORM2 affinity. Setting both forms will default to FORM2. We're not
advertising FORM2 for pseries-6.1 and older machine versions to prevent
guest visible changes in those;

- ibm,associativity-reference-points has a new semantic. Instead of
being used to calculate distances via NUMA levels, it's now used to
indicate the primary domain index in the ibm,associativity domain of
each resource. In our case it's set to {0x4}, matching the position
where we already place logical_domain_id;

- two new RTAS DT artifacts are introduced: ibm,numa-lookup-index-table
and ibm,numa-distance-table. The index table is used to list all the
NUMA logical domains of the platform, in ascending order, and allows for
spartial NUMA configurations (although QEMU ATM doesn't support that).
ibm,numa-distance-table is an array that contains all the distances from
the first NUMA node to all other nodes, then the second NUMA node
distances to all other nodes and so on;

- get_max_dist_ref_points(), get_numa_assoc_size() and get_associativity()
now checks for OV5_FORM2_AFFINITY and returns FORM2 values if the guest
selected FORM2 affinity during CAS.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-7-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 5dab5abe62 spapr: move FORM1 verifications to post CAS
FORM2 NUMA affinity is prepared to deal with empty (memory/cpu less)
NUMA nodes. This is used by the DAX KMEM driver to locate a PAPR SCM
device that has a different latency than the original NUMA node from the
regular memory. FORM2 is also able  to deal with asymmetric NUMA
distances gracefully, something that our FORM1 implementation doesn't
do.

Move these FORM1 verifications to a new function and wait until after
CAS, when we're sure that we're sticking with FORM1, to enforce them.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-6-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza a165ac67c3 spapr_numa.c: rename numa_assoc_array to FORM1_assoc_array
Introducing a new NUMA affinity, FORM2, requires a new mechanism to
switch between affinity modes after CAS. Also, we want FORM2 data
structures and functions to be completely separated from the existing
FORM1 code, allowing us to avoid adding new code that inherits the
existing complexity of FORM1.

The idea of switching values used by the write_dt() functions in
spapr_numa.c was already introduced in the previous patch, and
the same approach will be used when dealing with the FORM1 and FORM2
arrays.

We can accomplish that by that by renaming the existing numa_assoc_array
to FORM1_assoc_array, which now is used exclusively to handle FORM1 affinity
data. A new helper get_associativity() is then introduced to be used by the
write_dt() functions to retrieve the current ibm,associativity array of
a given node, after considering affinity selection that might have been
done during CAS. All code that was using numa_assoc_array now needs to
retrieve the array by calling this function.

This will allow for an easier plug of FORM2 data later on.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-5-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 3a6e4ce684 spapr_numa.c: parametrize FORM1 macros
The next preliminary step to introduce NUMA FORM2 affinity is to make
the existing code independent of FORM1 macros and values, i.e.
MAX_DISTANCE_REF_POINTS, NUMA_ASSOC_SIZE and VCPU_ASSOC_SIZE. This patch
accomplishes that by doing the following:

- move the NUMA related macros from spapr.h to spapr_numa.c where they
are used. spapr.h gets instead a 'NUMA_NODES_MAX_NUM' macro that is used
to refer to the maximum number of NUMA nodes, including GPU nodes, that
the machine can support;

- MAX_DISTANCE_REF_POINTS and NUMA_ASSOC_SIZE are renamed to
FORM1_DIST_REF_POINTS and FORM1_NUMA_ASSOC_SIZE. These FORM1 specific
macros are used in FORM1 init functions;

- code that uses MAX_DISTANCE_REF_POINTS now retrieves the
max_dist_ref_points value using get_max_dist_ref_points().
NUMA_ASSOC_SIZE is replaced by get_numa_assoc_size() and VCPU_ASSOC_SIZE
is replaced by get_vcpu_assoc_size(). These functions are used by the
generic device tree functions and h_home_node_associativity() and will
allow them to switch between FORM1 and FORM2 without changing their core
logic.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-4-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza afa3b3c9ee spapr_numa.c: scrap 'legacy_numa' concept
When first introduced, 'legacy_numa' was a way to refer to guests that
either wouldn't be affected by associativity domain calculations, namely
the ones with only 1 NUMA node, and pre 5.2 guests that shouldn't be
affected by it because it would be an userspace change. Calling these
cases 'legacy_numa' was a convenient way to label these cases.

We're about to introduce a new NUMA affinity, FORM2, and this concept
of 'legacy_numa' is now a bit misleading because, although it is called
'legacy' it is in fact a FORM1 exclusive contraint.

This patch removes spapr_machine_using_legacy_numa() and open code the
conditions in each caller. While we're at it, move the chunk inside
spapr_numa_FORM1_affinity_init() that sets all numa_assoc_array domains
with 'node_id' to spapr_numa_define_FORM1_domains(). This chunk was
being executed if !pre_5_2_numa_associativity and num_nodes => 1, the
same conditions in which spapr_numa_define_FORM1_domains() is called
shortly after.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-3-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza d98dbe2a2b spapr_numa.c: split FORM1 code into helpers
The upcoming FORM2 NUMA affinity will support asymmetric NUMA topologies
and doesn't need be concerned with all the legacy support for older
pseries FORM1 guests.

We're also not going to calculate associativity domains based on numa
distance (via spapr_numa_define_associativity_domains) since the
distances will be written directly into new DT properties.

Let's split FORM1 code into its own functions to allow for easier
insertion of FORM2 logic later on.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210920174947.556324-2-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Matheus Ferst 92fb92d3e9 target/ppc: Check privilege level based on PSR and LPCR[HR] in tlbie[l]
PowerISA v3.0B made tlbie[l] hypervisor privileged when PSR=0 and HR=1.
To allow the check at translation time, we'll use the HR bit of LPCR to
check the MMU mode instead of the PATE.HR.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210917114751.206845-3-matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Matheus Ferst 1db3632a14 target/ppc: add LPCR[HR] to DisasContext and hflags
Add a Host Radix field (hr) in DisasContext with LPCR[HR] value to allow
us to decide between Radix and HPT while validating instructions
arguments. Note that PowerISA v3.1 does not require LPCR[HR] and PATE.HR
to match if the thread is in ultravisor/hypervisor real addressing mode,
so ctx->hr may be invalid if ctx->hv and ctx->dr are set.

Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210917114751.206845-2-matheus.ferst@eldorado.org.br>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Cédric Le Goater 7279810b67 target/ppc: Replace debug messages by asserts for unknown IRQ pins
If an unknown pin of the IRQ controller is raised, something is very
wrong in the QEMU model. It is better to abort.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210920061203.989563-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Cédric Le Goater 2eb1ef73b6 target/ppc: Convert debug to trace events (exceptions)
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210920061203.989563-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 46f2c282c3 memory_hotplug.c: send DEVICE_UNPLUG_GUEST_ERROR in acpi_memory_hotplug_write()
MEM_UNPLUG_ERROR is deprecated since the introduction of
DEVICE_UNPLUG_GUEST_ERROR. Keep emitting both while the deprecation of
MEM_UNPLUG_ERROR is pending.

CC: Michael S. Tsirkin <mst@redhat.com>
CC: Igor Mammedov <imammedo@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-8-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza 4b08cd567b spapr: use DEVICE_UNPLUG_GUEST_ERROR to report unplug errors
Linux Kernel 5.12 is now unisolating CPU DRCs in the device_removal
error path, signalling that the hotunplug process wasn't successful.
This allow us to send a DEVICE_UNPLUG_GUEST_ERROR in drc_unisolate_logical()
to signal this error to the management layer.

We also have another error path in spapr_memory_unplug_rollback() for
configured LMB DRCs. Kernels older than 5.13 will not unisolate the LMBs
in the hotunplug error path, but it will reconfigure them. Let's send
the DEVICE_UNPLUG_GUEST_ERROR event in that code path as well to cover the
case of older kernels.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-7-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:26:06 +10:00
Daniel Henrique Barboza d43f1670c7 qapi/qdev.json: add DEVICE_UNPLUG_GUEST_ERROR QAPI event
At this moment we only provide one event to report a hotunplug error,
MEM_UNPLUG_ERROR. As of Linux kernel 5.12 and QEMU 6.0.0, the pseries
machine is now able to report unplug errors for other device types, such
as CPUs.

Instead of creating a (device_type)_UNPLUG_ERROR for each new device,
create a generic DEVICE_UNPLUG_GUEST_ERROR event that can be used by all
guest side unplug errors in the future. This event has a similar API as
the existing DEVICE_DELETED event, always providing the QOM path of the
device and dev->id if there's any.

With this new generic event, MEM_UNPLUG_ERROR is now marked as deprecated.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-6-danielhb413@gmail.com>
[dwg: Correct missing ')' in stubs/qdev.c]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-30 12:25:51 +10:00
Daniel Henrique Barboza a5bc19c542 qapi/qdev.json: fix DEVICE_DELETED parameters doc
Clarify that @device is optional and that 'path' is the device
path from QOM.

This change follows Markus' suggestion verbatim, provided in full
context here:

https://lists.gnu.org/archive/html/qemu-devel/2021-07/msg01891.html

Suggested-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-5-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Daniel Henrique Barboza 91bd95ce16 spapr_drc.c: do not error_report() when drc->dev->id == NULL
The error_report() call in drc_unisolate_logical() is not considering
that drc->dev->id can be NULL, and the underlying functions error_report()
calls to do its job (vprintf(), g_strdup_printf() ...) has undefined
behavior when trying to handle "%s" with NULL arguments.

Besides, there is no utility into reporting that an unknown device was
rejected by the guest.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-4-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Daniel Henrique Barboza 44d886abab spapr.c: handle dev->id in spapr_memory_unplug_rollback()
As done in hw/acpi/memory_hotplug.c, pass an empty string if dev->id
is NULL to qapi_event_send_mem_unplug_error() to avoid relying on
a behavior that can be changed in the future.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-3-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Daniel Henrique Barboza 99b2c06225 memory_hotplug.c: handle dev->id = NULL in acpi_memory_hotplug_write()
qapi_event_send_mem_unplug_error() deals with @device being NULL by
replacing it with an empty string ("") when emitting the event. Aside
from the fact that this behavior (qapi visitor mapping NULL pointer to
"") can be patched/changed someday, there's also the lack of utility
that the event brings to listeners, e.g. "a memory unplug error happened
somewhere".

In theory we should just avoit emitting this event at all if dev->id is
NULL, but this would be an incompatible change to existing guests.
Instead, let's make the forementioned behavior explicit: if dev->id is
NULL, pass an empty string to qapi_event_send_mem_unplug_error().

Suggested-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20210907004755.424931-2-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Luis Pires a3d67f3e5d target/ppc: fix setting of CR flags in bcdcfsq
According to the ISA, CR should be set based on the source value, and
not on the packed decimal result.
The way this was implemented would cause GT, LT and EQ to be set
incorrectly when the source value was too large and the 31 least
significant digits of the packed decimal result ended up being all zero.
This would happen for source values of +/-10^31, +/-10^32, etc.

The new implementation fixes this and also skips the result calculation
altogether in case of src overflow.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Message-Id: <20210823150235.35759-1-luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Cédric Le Goater f640afec1a ppc/pnv: Add an assert when calculating the RAM distribution on chips
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210902130928.528803-3-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:39 +10:00
Cédric Le Goater 325ba52a4e docs/system: ppc: Update the URL for OpenPOWER firmware images
This also fixes a small skiboot/skiroot typo and removes the links to
the specific POWER8 and POWER9 images since the firmware images can be
used to run all machines.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210902130928.528803-2-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater 92612f1550 ppc/pnv: Rename "id" to "quad-id" in PnvQuad
This to avoid possible conflicts with the "id" property of QOM objects.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-9-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater daf115cf9a ppc/xive: Export xive_tctx_word2() helper
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-8-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater 89d2468d96 ppc/xive: Export priority_to_ipb() helper
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-7-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater 0e5e9ff455 ppc/pnv: Remove useless variable
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-5-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater 40ef88ba77 ppc/pnv: Add a comment on the "primary-topology-index" property
On P10, the chip id is calculated from the "Primary topology table
index". See skiboot commits for more information [1].

This information is extracted from the hdata on real systems which
QEMU needs to emulate. Add this property for all machines even if it
is only used on POWER10.

[1] https://github.com/open-power/skiboot/commit/2ce3f083f399
    https://github.com/open-power/skiboot/commit/a2d4d7f9e14a

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Cédric Le Goater 3ad2111175 ppc/spapr: Add a POWER10 DD2 CPU
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20210901094153.227671-3-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Luis Pires bb89646c75 i386/kvm: Replace abs64() with uabs64() from host-utils
Drop abs64() and use uabs64() from host-utils, which avoids
an undefined behavior when taking abs of the most negative value.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210910112624.72748-5-luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Luis Pires d03bba0bfb host-utils: introduce uabs64()
Introduce uabs64(), a function that returns the absolute value of
a 64-bit int as an unsigned value. This avoids the undefined behavior
for common abs implementations, where abs of the most negative value is
undefined.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210910112624.72748-4-luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Luis Pires 4ff2a971f4 host-utils: fix missing zero-extension in divs128
*plow (lower 64 bits of the dividend) is passed into divs128() as
a signed 64-bit integer. When building an __int128_t from it, it
must be zero-extended, instead of sign-extended.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Message-Id: <20210910112624.72748-3-luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Luis Pires 06c0259a08 host-utils: Fix overflow detection in divu128()
The previous code didn't detect overflows if the high 64-bit
of the dividend were equal to the 64-bit divisor. In that case,
64 bits wouldn't be enough to hold the quotient.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210910112624.72748-2-luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-09-29 19:37:38 +10:00
Peter Maydell 6b54a31bf7 Python Pull request
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Merge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into staging

Python Pull request

# gpg: Signature made Mon 27 Sep 2021 20:24:39 BST
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jsnow-gitlab/tags/python-pull-request: (32 commits)
  python/aqmp-tui: Add syntax highlighting
  python: add optional pygments dependency
  python: Add entry point for aqmp-tui
  python/aqmp-tui: Add AQMP TUI
  python: Add dependencies for AQMP TUI
  python/aqmp: Add Coverage.py support
  python/aqmp: add LineProtocol tests
  python/aqmp: add AsyncProtocol unit tests
  python: bump avocado to v90.0
  python/aqmp: add scary message
  python/aqmp: add asyncio_run compatibility wrapper
  python/aqmp: add _raw() execution interface
  python/aqmp: add execute() interfaces
  python/aqmp: Add message routing to QMP protocol
  python/pylint: disable no-member check
  python/aqmp: add QMP protocol support
  python/pylint: disable too-many-function-args
  python/aqmp: add QMP event support
  python/aqmp: add well-known QMP object models
  python/aqmp: add QMP Message format
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-28 13:07:32 +01:00
Peter Maydell 14f02d8a9e Integration testing patches
- More Linux kernel record/replay tests (Pavel Dovgalyuk)
 - Various fixes (Willian Rampazzo, Cleber Rosa)
 - Split machine_ppc.py per machine (David Gibson)
 - Add AVOCADO_TESTS command line environment variable (Willian Rampazzo)
 - Test PowerPC PowerNV 8/9 machines (Cédric Le Goater)
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Merge remote-tracking branch 'remotes/philmd/tags/integration-testing-20210927' into staging

Integration testing patches

- More Linux kernel record/replay tests (Pavel Dovgalyuk)
- Various fixes (Willian Rampazzo, Cleber Rosa)
- Split machine_ppc.py per machine (David Gibson)
- Add AVOCADO_TESTS command line environment variable (Willian Rampazzo)
- Test PowerPC PowerNV 8/9 machines (Cédric Le Goater)

# gpg: Signature made Mon 27 Sep 2021 18:24:03 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd/tags/integration-testing-20210927: (22 commits)
  tests/acceptance: Test powernv machines
  tests/acceptance/ppc_prep_40p.py: clean up unused import
  tests/acceptance/ppc_prep_40p.py: NetBSD 7.1.2 location update
  tests/acceptance/boot_xen.py: removed unused import
  acceptance/tests/vnc.py: use explicit syntax for enabling passwords
  Acceptance Tests: improve check-acceptance description
  qemu: Split machine_ppc.py acceptance tests
  tests/Makefile: add AVOCADO_TESTS option to make check-acceptance
  docs/devel/testing: add instruction to run a single acceptance test
  tests/Makefile: allow control over tags during check-acceptance
  avocado_qemu: fix inheritance order on LinuxTest class
  avocado_qemu: explicitly return None to avoid R1710
  avocado_qemu: tweak ssh connect method
  avocado_qemu: fix import module based on isort
  avocado_qemu: standardize super() call following PEP3135
  Acceptance Tests: add standard clean up at test tearDown()
  Acceptance tests: add myself as a reviewer for the acceptance tests
  tests/acceptance: Linux boot test for record/replay
  tests/acceptance: add replay kernel test for alpha
  tests/acceptance: add replay kernel test for nios2
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-27 19:52:43 +01:00
Cédric Le Goater 4c5fc0c5fc tests/acceptance: Test powernv machines
Fetch the OpenPOWER images to boot the powernv8 and powernv9 machines
with a simple PCI layout.

Cc: Cleber Rosa <crosa@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Cc: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210817093036.1288791-1-clg@kaod.org>
2021-09-27 19:21:37 +02:00
Cleber Rosa 3d2ec56550 tests/acceptance/ppc_prep_40p.py: clean up unused import
Just a removal of an unused imported symbol.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210924185506.2542588-16-crosa@redhat.com>
2021-09-27 19:06:47 +02:00
Cleber Rosa 089f25877f tests/acceptance/ppc_prep_40p.py: NetBSD 7.1.2 location update
The NetBSD-7.1.2-prep.iso is no longer available on the CDN, but it's
still available in the archive.

Let's update its location so that users without the file on cache can
still fetch it and run the test.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210924185506.2542588-15-crosa@redhat.com>
2021-09-27 19:06:47 +02:00
Cleber Rosa 6f1f86cfa7 tests/acceptance/boot_xen.py: removed unused import
Just a clean up for an unused import.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210924185506.2542588-13-crosa@redhat.com>
2021-09-27 19:06:47 +02:00
Cleber Rosa 0f981d8792 acceptance/tests/vnc.py: use explicit syntax for enabling passwords
This matches the command line on 82a17d1d67, where the "on" or "off"
should be explicitly given.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210924185506.2542588-9-crosa@redhat.com>
2021-09-27 19:06:47 +02:00
Cleber Rosa 181e1ab2ad Acceptance Tests: improve check-acceptance description
The "check-acceptance" make rule won't necessarily run *all* available
tests, because it employs a filter based on the currently configured
targets.  This change in the description of the rule makes that
behavior extra clear.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210924185506.2542588-3-crosa@redhat.com>
2021-09-27 19:06:47 +02:00
David Gibson c5f0a81650 qemu: Split machine_ppc.py acceptance tests
machine_ppc.py contains tests for 3 different ppc based machine types.  It
is listed in MAINTAINERS along with the PPC TCG cpu code.  That's not
really accurate though, since it's really more about testing those machines
than the CPUs.

Therefore, split it up into separate files for the separate machine types,
and list those along with their machine types in MAINTAINERS.

Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210927044808.73391-2-david@gibson.dropbear.id.au>
2021-09-27 19:06:47 +02:00