Bug fixes:
* Fix die-id validation regression (Eduardo Habkost)
* vmmouse: Properly reset state (Jan Kiszka)
* hostmem-file: fix pmem file size check (Stefan Hajnoczi)
* Keep query-hotpluggable-cpus output compatible with older QEMU
if '-smp dies' is not set (Igor Mammedov)
* migration: Do not re-read the clock on pre_save in case of paused guest
(Maxiwell S. Garcia)
Cleanups:
* NUMA code cleanups (Tao Xu)
* Remove stale externs from includes (Alex Bennée)
Features:
* qapi: report the default CPU type for each machine (Daniel P. Berrangé)
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
Machine + x86 queue, 2019-09-03
Bug fixes:
* Fix die-id validation regression (Eduardo Habkost)
* vmmouse: Properly reset state (Jan Kiszka)
* hostmem-file: fix pmem file size check (Stefan Hajnoczi)
* Keep query-hotpluggable-cpus output compatible with older QEMU
if '-smp dies' is not set (Igor Mammedov)
* migration: Do not re-read the clock on pre_save in case of paused guest
(Maxiwell S. Garcia)
Cleanups:
* NUMA code cleanups (Tao Xu)
* Remove stale externs from includes (Alex Bennée)
Features:
* qapi: report the default CPU type for each machine (Daniel P. Berrangé)
# gpg: Signature made Tue 03 Sep 2019 21:57:37 BST
# gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg: issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6
* remotes/ehabkost/tags/machine-next-pull-request:
migration: Do not re-read the clock on pre_save in case of paused guest
x86: do not advertise die-id in query-hotpluggbale-cpus if '-smp dies' is not set
i386/vmmouse: Properly reset state
hostmem-file: fix pmem file size check
qapi: report the default CPU type for each machine
pc: Don't make die-id mandatory unless necessary
pc: Improve error message when die-id is omitted
pc: Fix error message on die-id validation
numa: move numa global variable numa_info into MachineState
numa: move numa global variable have_numa_distance into MachineState
numa: move numa global variable nb_numa_nodes into MachineState
hw/arm: simplify arm_load_dtb
includes: remove stale [smp|max]_cpus externs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move existing numa global numa_info (renamed as "nodes") into NumaState.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20190809065731.9097-5-tao3.xu@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Add struct NumaState in MachineState and move existing numa global
nb_numa_nodes(renamed as "num_nodes") into NumaState. And add variable
numa_support into MachineClass to decide which submachines support NUMA.
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20190809065731.9097-3-tao3.xu@intel.com>
[ehabkost: include hw/boards.h again to fix build failures]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
A recent change in spapr_machine_reset() showed that resetting the compat
mode in spapr_machine_reset() for the boot vCPU and in spapr_cpu_reset()
for all other vCPUs was fragile. The fix was thus to reset the compat mode
for all vCPUs in spapr_machine_reset(), but we still have to propagate
it to hot-plugged CPUs. This is still performed from spapr_cpu_reset(),
hence resulting in ppc_set_compat() being called twice for every vCPU at
machine reset. Apart from wasting cycles, which isn't really an issue
during machine reset, this seems to indicate that spapr_cpu_reset() isn't
the best place to set the compat mode.
A natural candidate for CPU-hotplug specific code is spapr_core_plug().
Also, it sits in the same file as spapr_machine_reset() : this makes
it easier for someone who wants to know when the compat PVR is set.
Call ppc_set_compat() from there. This doesn't need to be done for
initial vCPUs since the compat PVR is 0 and spapr_machine_reset() sets
the appropriate value later. No need to do this on manually added vCPUS
on the destination QEMU during migration since the compat PVR is
part of the migrated vCPU state. Both conditions can be checked with
spapr_drc_hotplugged().
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156701285312.499757.7807417667750711711.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The QEMU coding style requires:
- to typedef structured types (HACKING)
- to use CamelCase for types and structure names (CODING_STYLE)
Do that for PCI and Nvlink2 code.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156701644465.505236.2850655823182656869.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The pseries guests do not normally allocate PCI resources and rely on
the system firmware doing so. Furthermore at least at some point in
the past the pseries guests won't even allowed to change BARs, probably
it is still the case for phyp. So since the initial commit we have [1]
which prevents resource reallocation.
This is not a problem until we want specific BAR alignments, for example,
PAGE_SIZE==64k to make sure we can still map MMIO BARs directly. For
the boot time devices we handle this in SLOF [2] but since QEMU's RTAS
does not allocate BARs, the guest does this instead and does not align
BARs even if Linux is given pci=resource_alignment=16@pci:0:0 as
PCI_PROBE_ONLY makes Linux ignore alignment requests.
ARM folks added a dial to control PCI_PROBE_ONLY via the device tree [3].
This makes use of the dial to advertise to the guest that we can handle
BAR reassignments. This limits the change to the latest pseries machine
to avoid old guests explosion.
We do not remove the flag from [1] as pseries guests are still supported
under phyp so having that removed may cause problems.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/platforms/pseries/setup.c?h=v5.1#n773
[2] https://git.qemu.org/?p=SLOF.git;a=blob;f=board-qemu/slof/pci-phb.fs;h=06729bcf77a0d4e900c527adcd9befe2a269f65d;hb=HEAD#l338
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f81c11af
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20190719043734.108462-1-aik@ozlabs.ru>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The sPAPR platform includes feature negotiation between the guest and
platform. That sometimes requires reconfiguring the virtual hardware, and
in some cases that is a complex enough process that we trigger a system
reset to handle it. That interacts badly with -no-reboot - we trigger the
reboot, -no-reboot means we exit and so the guest never gets to try again.
Eventually we want to get rid of CAS reboots entirely, since they're odd
and irritating for the user. But in the meantime we can fix the -no-reboot
problem by using SHUTDOWN_CAUSE_SUBSYSTEM_RESET which ignores -no-reboot
and seems to be designed for this sort of faux-reset for internal purposes
only.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The ibm,get_system_parameter rtas call is used by the guest to retrieve
data relating to certain parameters of the system. The SPLPAR
characteristics option (token 20) is used to determine characteristics of
the environment in which the lpar will run.
It may be useful for a guest to know the number of physical host threads
present on the underlying system where it is being run. Add the
characteristic "HostThrs" to the SPLPAR Characteristics
ibm,get_system_parameter rtas call to expose this information to a
guest. Add a n_host_threads property to the processor class which is
then used to retrieve this information and define it for POWER8 and
POWER9. Other processors will default to 0 and the charateristic won't
be added.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Message-Id: <20190827045751.22123-1-sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
If we a migrate P8 machine to a P9 machine, the migration fails on
destination with:
error while loading state for instance 0x1 of device 'cpu'
load of migration failed: Operation not permitted
This is caused because the compat_pvr field is only present for the first
CPU.
Originally, spapr_machine_reset() calls ppc_set_compat() to set the value
max_compat_pvr for the first cpu and this was propagated to all CPUs by
spapr_cpu_reset(). Now, as spapr_cpu_reset() is called before that, the
value is not propagated to all CPUs and the migration fails.
To fix that, propagate the new value to all CPUs in spapr_machine_reset().
Fixes: 25c9780d38 ("spapr: Reset CAS & IRQ subsystem after devices")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20190826090812.19080-1-lvivier@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
There is nothing wrong with how sPAPR handles multifunction PCI
hot unplugs. The problem is that x86 does it simpler. Instead of
removing each non-zero function and then removing function zero,
x86 can remove any function of the slot to trigger the hot unplug.
Libvirt will be directly impacted by this difference, in the
(hopefully soon) PCI Multifunction hot plug/unplug support. For
hot plugs, both x86 and sPAPR will operate the same way: a XML
with all desired functions to be added, then consecutive hotplugs
of all non-zero functions first, zero last. For hot unplugs, at
least in the current state, a XML with the devices to be removed
must also be provided because of how sPAPR operates - x86 does
not need it - since any function unplug will unplug the whole
PCIe slot. This difference puts extra strain in the management
layer, which needs to either handle both archs differently in
the unplug scenario or choose treat x86 like sPAPR, forcing x86
users to cope with sPAPR internals.
This patch changes spapr_pci_unplug_request to handle the
unplug of function zero differently. When removing function zero,
instead of error-ing out if there are any remaining function
DRCs which needs detaching, detach those. This has no effect in
any existing scripts that are detaching the non-zero functions
before function zero, and can be used by management as a shortcut
to remove the whole PCI multifunction device without specifying
each child function.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20190822195918.3307-1-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Make the current "powernv" machine an abstract type and derive from it
new machines with specific CPU models: power8 and power9.
The "powernv" machine is now an alias on the "powernv9" machine.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190731141233.1340-2-clg@kaod.org>
[dwg: Adjust pnv-xscom-test to cope with this change]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Devices such as the BT or serial devices require a valid
"interrupt-parent" phandle in the device tree and it is currently
empty (0x0). It was not a problem until now but since OpenFirmare
started using a recent libdft (>= 1.4.7), petitboot fails to boot the
system image with error :
dtc_resize: fdt_open_into returned FDT_ERR_BADMAGIC
Provide a phandle for the LPC bus.
Suggested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190723090138.30623-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This makes the powernv machine easier for end users as the default
initrd address (1.5GB) is now within RAM.
This uses less than 2GB of RAM to ensure 32 bit Qemu still works.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20190821030945.473-1-joel@jms.id.au>
[dwg: Fix comment style for checkpatch]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190709152053.16670-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[Rebased onto merge commit 95a9457fd44; missed instances of qom/cpu.h
in comments replaced]
GCC9 is confused by this comment when building with CFLAG
-Wimplicit-fallthrough=2:
CC ppc64-softmmu/hw/ppc/spapr_rtc.o
hw/ppc/spapr_events.c: In function ‘rtas_event_log_to_source’:
hw/ppc/spapr_events.c:312:12: error: this statement may fall through [-Werror=implicit-fallthrough=]
312 | if (spapr_ovec_test(spapr->ov5_cas, OV5_HP_EVT)) {
| ^
hw/ppc/spapr_events.c:317:5: note: here
317 | case RTAS_LOG_TYPE_EPOW:
| ^~~~
cc1: all warnings being treated as errors
Rewrite the comment using 'fall through' which is recognized by
GCC and static analyzers.
Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20190719131425.10835-8-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
PHBs already take care of clearing the MSIs from the bitmap during reset
or unplug. No need to do this globally from the machine code. Rather add
an assert to ensure that PHBs have acted as expected.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156415228966.1064338.190189424190233355.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[dwg: Fix crash in qtest case where spapr->irq_map can be NULL at the
new assert()]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When the machine is reset, the MSI bitmap is cleared but the allocated
MSIs are not freed. Some operating systems, such as AIX, can detect the
previous configuration and assert.
Empty the MSI cache, this performs the needed cleanup.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156415228410.1064338.4486161194061636096.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When freeing MSIs, we need to:
- remove them from the machine's MSI bitmap
- remove them from the IC backend
- remove them from the PHB's MSI cache
This is currently open coded in two places in rtas_ibm_change_msi(),
and we're about to need this in spapr_phb_reset() as well. Instead of
duplicating this code again, make it a destroy function for the PHB's
MSI cache. Removing an MSI device from the cache will call the destroy
function internally.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156415227855.1064338.5657793835271464648.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This has been useful to modify and test the Linux pseries suspend
code but it requires modification to the guest to call it (due to
being gated by other unimplemented features). It is not otherwise
used by Linux yet, but work is slowly progressing there.
This allows a (lightly modified) guest kernel to suspend with
`echo mem > /sys/power/state` and be resumed with system_wakeup
monitor command.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20190722061752.22114-2-npiggin@gmail.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This implements the H_TPM_COMM hypercall, which is used by an
Ultravisor to pass TPM commands directly to the host's TPM device, or
a TPM Resource Manager associated with the device.
This also introduces a new virtual device, spapr-tpm-proxy, which
is used to configure the host TPM path to be used to service
requests sent by H_TPM_COMM hcalls, for example:
-device spapr-tpm-proxy,id=tpmp0,host-path=/dev/tpmrm0
By default, no spapr-tpm-proxy will be created, and hcalls will return
H_FUNCTION.
The full specification for this hypercall can be found in
docs/specs/ppc-spapr-uv-hcalls.txt
Since SVM-related hcalls like H_TPM_COMM use a reserved range of
0xEF00-0xEF80, we introduce a separate hcall table here to handle
them.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com
Message-Id: <20190717205842.17827-3-mdroth@linux.vnet.ibm.com>
[dwg: Corrected #include for upstream change]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This has been useful to modify and test the Linux pseries suspend
code but it requires modification to the guest to call it (due to
being gated by other unimplemented features). It is not otherwise
used by Linux yet, but work is slowly progressing there.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20190718034214.14948-5-npiggin@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This does not do directed yielding and is not quite as strict as PAPR
specifies in terms of precise dispatch behaviour. This generally will
mean suboptimal performance, rather than guest misbehaviour. Linux
does not rely on exact dispatch behaviour.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20190718034214.14948-4-npiggin@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
H_PROD is added, and H_CEDE is modified to test the prod bit
according to PAPR.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20190718034214.14948-3-npiggin@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Implement cpu_exec_enter/exit on ppc which calls into new methods of
the same name in PPCVirtualHypervisorClass. These are used by spapr
to implement the splpar VPA dispatch counter initially.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20190718034214.14948-2-npiggin@gmail.com>
[dwg: Removed unnecessary CONFIG_USER_ONLY checks as suggested by gkurz]
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Free all SpaprOptionVector local pointers after use.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Message-Id: <156335160761.82682.11912058325777251614.stgit@lep8c.aus.stglabs.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Leaking the drc_name while preparing the DT properties.
Fixing that.
Also, remove the const qualifier from spapr_drc_name().
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Message-Id: <156335159028.82682.5404622104535818162.stgit@lep8c.aus.stglabs.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Free the capability name string after setting
the capability.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Message-Id: <156335156198.82682.8756968724044750843.stgit@lep8c.aus.stglabs.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Re-read the timebase before migrate was ported from x86 commit:
6053a86fe7bd: kvmclock: reduce kvmclock difference on migration
The clock move makes the guest knows about the paused time between
the stop and migrate commands. This is an issue in an already-paused
VM because some side effects, like process stalls, could happen
after migration.
So, this patch checks the runstate of guest in the pre_save handler and
do not re-reads the timebase in case of paused state (cold migration).
Signed-off-by: Maxiwell S. Garcia <maxiwell@linux.ibm.com>
Message-Id: <20190711194702.26598-1-maxiwell@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
We've had the qemu and kernel KVM infrastructure to handle larger TCE
page sizes for a while, but forgot to update the defaults to actually
allow them. This turns that change on.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add 4.2 machine types for arm/i440fx/q35/s390x/spapr.
For i440fx and q35, unversioned cpu models are still translated
to -v1, as 0788a56bd1 ("i386: Make unversioned CPU models be
aliases") states this should only transition to the latest cpu
model version in 4.3 (or later).
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190724103524.20916-1-cohuck@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Its not immediately obvious how cap-X=Y setting need to be applied
to the command line so, for spapr capability error messages, this
has been clarified to:
appending -machine cap-X=Y
The wrong value messages have been left as is, as the user has found
the right location.
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Daniel Black <daniel@linux.ibm.com>
Message-Id: <20190812071044.30806-1-daniel@linux.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
sysemu/sysemu.h is a rather unfocused dumping ground for stuff related
to the system-emulator. Evidence:
* It's included widely: in my "build everything" tree, changing
sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600
objects (not counting tests and objects that don't depend on
qemu/osdep.h, down from 5400 due to the previous two commits).
* It pulls in more than a dozen additional headers.
Split stuff related to run state management into its own header
sysemu/runstate.h.
Touching sysemu/sysemu.h now recompiles some 850 objects. qemu/uuid.h
also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400
to 4200. Touching new sysemu/runstate.h recompiles some 500 objects.
Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also
add qemu/main-loop.h.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-30-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[Unbreak OS-X build]
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 5400 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
Almost a third of its inclusions are actually superfluous. Delete
them. Downgrade two more to qapi/qapi-types-run-state.h, and move one
from char/serial.h to char/serial.c.
hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and
stubs/semihost.c define variables declared in sysemu/sysemu.h without
including it. The compiler is cool with that, but include it anyway.
This doesn't reduce actual use much, as it's still included into
widely included headers. The next commit will tackle that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-27-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Commit e35704ba9c "numa: Move NUMA declarations from sysemu.h to
numa.h" left a few NUMA-related macros behind. Move them now.
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-26-armbru@redhat.com>
hw/boards.h pulls in almost 60 headers. The less we include it into
headers, the better. As a first step, drop superfluous inclusions,
and downgrade some more to what's actually needed. Gets rid of just
one inclusion into a header.
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-23-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h. Include hw/qdev-core.h there
instead.
hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.
While there, delete a few superfluous inclusions of hw/qdev-core.h.
Touching hw/qdev-properties.h now recompiles some 1200 objects.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
In my "build everything" tree, changing qemu/main-loop.h triggers a
recompile of some 5600 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h). It includes block/aio.h,
which in turn includes qemu/event_notifier.h, qemu/notify.h,
qemu/processor.h, qemu/qsp.h, qemu/queue.h, qemu/thread-posix.h,
qemu/thread.h, qemu/timer.h, and a few more.
Include qemu/main-loop.h only where it's needed. Touching it now
recompiles only some 1700 objects. For block/aio.h and
qemu/event_notifier.h, these numbers drop from 5600 to 2800. For the
others, they shrink only slightly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-21-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).
The previous commits have left only the declaration of hw_error() in
hw/hw.h. This permits dropping most of its inclusions. Touching it
now recompiles less than 200 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing migration/vmstate.h triggers a
recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
hw/hw.h supposedly includes it for convenience. Several other headers
include it just to get VMStateDescription. The previous commit made
that unnecessary.
Include migration/vmstate.h only where it's still needed. Touching it
now recompiles only some 1600 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-16-armbru@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing hw/irq.h triggers a recompile
of some 5400 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).
hw/hw.h supposedly includes it for convenience. Several other headers
include it just to get qemu_irq and.or qemu_irq_handler.
Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to
qemu/typedefs.h, and then include hw/irq.h only where it's still
needed. Touching it now recompiles only some 500 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-13-armbru@redhat.com>
According to hw/ide/internal's file comment, only files in hw/ide/ are
supposed to include it. Drag reality slightly closer to supposition.
Three includes outside hw/ide remain: hw/arm/sbsa-ref.c,
include/hw/ide/pci.h, and include/hw/misc/macio/macio.h. Turns out
board code needs ide-internal.h to wire up IDE stuff. More cleanup is
needed. Left for another day.
Cc: John Snow <jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-11-armbru@redhat.com>
In my "build everything" tree, changing migration/qemu-file-types.h
triggers a recompile of some 2600 out of 6600 objects (not counting
tests and objects that don't depend on qemu/osdep.h).
The culprit is again hw/hw.h, which supposedly includes it for
convenience.
Include migration/qemu-file-types.h only where it's needed. Touching
it now recompiles less than 200 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-10-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
In my "build everything" tree, changing sysemu/reset.h triggers a
recompile of some 2600 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
The main culprit is hw/hw.h, which supposedly includes it for
convenience.
Include sysemu/reset.h only where it's needed. Touching it now
recompiles less than 200 objects.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-9-armbru@redhat.com>
This fixes a nasty regression in qemu-4.1 for the 'pseries' machine,
caused by the new "dual" interrupt controller model. Specifically,
qemu can crash when used with KVM if a 'system_reset' is requested
while there's active I/O in the guest.
The problem is that in spapr_machine_reset() we:
1. Reset the CAS vector state
spapr_ovec_cleanup(spapr->ov5_cas);
2. Reset all devices
qemu_devices_reset()
3. Reset the irq subsystem
spapr_irq_reset();
However (1) implicitly changes the interrupt delivery mode, because
whether we're using XICS or XIVE depends on the CAS state. We don't
properly initialize the new irq mode until (3) though - in particular
setting up the KVM devices.
During (2), we can temporarily drop the BQL allowing some irqs to be
delivered which will go to an irq system that's not properly set up.
Specifically, if the previous guest was in (KVM) XIVE mode, the CAS
reset will put us back in XICS mode. kvm_kernel_irqchip() still
returns true, because XIVE was using KVM, however XICs doesn't have
its KVM components intialized and kernel_xics_fd == -1. When the irq
is delivered it goes via ics_kvm_set_irq() which assert()s that
kernel_xics_fd != -1.
This change addresses the problem by delaying the CAS reset until
after the devices reset. The device reset should quiesce all the
devices so we won't get irqs delivered while we mess around with the
IRQ. The CAS reset and irq re-initialize should also now be under the
same BQL critical section so nothing else should be able to interrupt
it either.
We also move the spapr_irq_msi_reset() used in one of the legacy irq
modes, since it logically makes sense at the same point as the
spapr_irq_reset() (it's essentially an equivalent operation for older
machine types). Since we don't need to switch between different
interrupt controllers for those old machine types it shouldn't
actually be broken in those cases though.
Cc: Cédric Le Goater <clg@kaod.org>
Fixes: b2e22477 "spapr: add a 'reset' method to the sPAPR IRQ backend"
Fixes: 13db0cd9 "spapr: introduce a new sPAPR IRQ backend supporting
XIVE and XICS"
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Just to give an indication to the user that the error condition is
handled and how.
Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <156398743479.546975.14566809803480887488.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Legacy '-numa node,mem' option has a number of issues and mgmt often
defaults to it. Unfortunately it's no possible to replace it with
an alternative '-numa memdev' without breaking migration compatibility.
What's possible though is to deprecate it, keeping option working with
old machine types only.
In order to help users to find out if being deprecated CLI option
'-numa node,mem' is still supported by particular machine type, add new
"numa-mem-supported" property to output of query-machines.
"numa-mem-supported" is set to 'true' for machines that currently support
NUMA, but it will be flipped to 'false' later on, once deprecation period
expires and kept 'true' only for old machine types that used to support
the legacy option so it won't break existing configuration that are using
it.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1560172207-378962-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Peter Maydell