Commit Graph

72691 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
877c181cd4 hw: Move PL031 device from hw/timer/ to hw/rtc/ subdirectory
The PL031 is a Real Time Clock, not a timer.
Move it under the hw/rtc/ subdirectory.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20191003230404.19384-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 20:10:27 +02:00
Philippe Mathieu-Daudé
2baa483bb7 hw/timer: Compile devices not target-dependent as common object
All these devices do not contain any target-specific. While most
of them are arch-specific, they are shared between different
targets of the same arch family (ARM and AArch64, MIPS32/MIPS64,
endianess, ...).
Put them into common-obj-y to compile them once for all targets.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191003230404.19384-2-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 20:10:27 +02:00
Frediano Ziglio
5bd3435442 qemu-timer: reuse MIN macro in qemu_timeout_ns_to_ms
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191023122652.2999-3-fziglio@redhat.com>
[lv: removed the two useless casts]
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 20:10:18 +02:00
Frediano Ziglio
105e1023a8 event_notifier: avoid dandling file descriptor in event_notifier_cleanup
If rfd is equal to wfd the file descriptor is closed but
rfd will still have the closed value.
The EventNotifier structure should not be used again after calling
event_notifier_cleanup or should be initialized again but make
sure to not have dandling file descriptors around.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191023122652.2999-2-fziglio@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 19:26:52 +02:00
Frediano Ziglio
765e35d71f util/async: avoid useless cast
event_notifier_dummy_cb is already compatible with EventNotifierHandler.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191023122652.2999-1-fziglio@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 19:26:05 +02:00
Mao Zhongyi
5892cfc719 pci_bridge: fix a typo in comment
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190909031446.1331810-1-maozhongyi@cmss.chinamobile.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 19:24:56 +02:00
Han Han
bbd9e6985f qemu-options.hx: Update for reboot-timeout parameter
Since ee5d0f89d, -1 is not valid for the value of reboot-timeout. Update
that in qemu-options doc.

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191015151451.727323-1-hhan@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-10-24 19:22:47 +02:00
Peter Maydell
58560ad254 ppc patch queue 2019-10-24
Last pull request before soft freeze.
   * Lots of fixes and cleanups for spapr interrupt controllers
   * More SLOF updates to fix problems with full FDT rendering at CAS
     time (alas, more yet are to come)
   * A few other assorted changes
 
 This isn't quite as well tested as I usually try to do before a pull
 request.  But I've been sick and running into some other difficulties,
 and wanted to get this sent out before heading towards KVM forum.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20191024' into staging

ppc patch queue 2019-10-24

Last pull request before soft freeze.
  * Lots of fixes and cleanups for spapr interrupt controllers
  * More SLOF updates to fix problems with full FDT rendering at CAS
    time (alas, more yet are to come)
  * A few other assorted changes

This isn't quite as well tested as I usually try to do before a pull
request.  But I've been sick and running into some other difficulties,
and wanted to get this sent out before heading towards KVM forum.

# gpg: Signature made Thu 24 Oct 2019 09:14:31 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-4.2-20191024: (28 commits)
  spapr/xive: Set the OS CAM line at reset
  ppc/pnv: Fix naming of routines realizing the CPUs
  ppc: Reset the interrupt presenter from the CPU reset handler
  ppc/pnv: Add a PnvChip pointer to PnvCore
  ppc/pnv: Introduce a PnvCore reset handler
  spapr_cpu_core: Implement DeviceClass::reset
  spapr: move CPU reset after presenter creation
  spapr: Don't request to unplug the same core twice
  pseries: Update SLOF firmware image
  spapr: Move SpaprIrq::nr_xirqs to SpaprMachineClass
  spapr: Remove SpaprIrq::nr_msis
  spapr, xics, xive: Move SpaprIrq::post_load hook to backends
  spapr, xics, xive: Move SpaprIrq::reset hook logic into activate/deactivate
  spapr: Remove SpaprIrq::init_kvm hook
  spapr, xics, xive: Match signatures for XICS and XIVE KVM connect routines
  spapr, xics, xive: Move dt_populate from SpaprIrq to SpaprInterruptController
  spapr, xics, xive: Move print_info from SpaprIrq to SpaprInterruptController
  spapr, xics, xive: Move set_irq from SpaprIrq to SpaprInterruptController
  spapr: Formalize notion of active interrupt controller
  spapr, xics, xive: Move irq claim and free from SpaprIrq to SpaprInterruptController
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-24 16:22:58 +01:00
Peter Maydell
81c1f71eeb x86 and machine queue, 2019-10-23
Features:
 * Denverton CPU model (Tao Xu)
 
 Cleanups:
 * Eliminate remaining places that abuse
   memory_region_allocate_system_memory() (Igor Mammedov)
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 K6r1Vr0VweK3h0g=
 =vIls
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

x86 and machine queue, 2019-10-23

Features:
* Denverton CPU model (Tao Xu)

Cleanups:
* Eliminate remaining places that abuse
  memory_region_allocate_system_memory() (Igor Mammedov)

# gpg: Signature made Thu 24 Oct 2019 03:45:34 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:
  hppa: drop usage of memory_region_allocate_system_memory() for ROM
  ppc: rs6000_mc: drop usage of memory_region_allocate_system_memory()
  sparc64: use memory_region_allocate_system_memory() only for '-m' specified RAM
  target/i386: Introduce Denverton CPU model

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-24 10:43:20 +01:00
Peter Maydell
ea0ec714d3 target/xtensa improvements for v4.2:
- regenerate and reimport test_mmuhifi_c3 core;
 - add virt machine.
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 T3TKVvQjPjvL/w==
 =DD9M
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/xtensa/tags/20191023-xtensa' into staging

target/xtensa improvements for v4.2:

- regenerate and reimport test_mmuhifi_c3 core;
- add virt machine.

# gpg: Signature made Wed 23 Oct 2019 23:56:42 BST
# gpg:                using RSA key 2B67854B98E5327DCDEB17D851F9CC91F83FA044
# gpg:                issuer "jcmvbkbc@gmail.com"
# gpg: Good signature from "Max Filippov <filippov@cadence.com>" [unknown]
# gpg:                 aka "Max Filippov <max.filippov@cogentembedded.com>" [full]
# gpg:                 aka "Max Filippov <jcmvbkbc@gmail.com>" [full]
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB  17D8 51F9 CC91 F83F A044

* remotes/xtensa/tags/20191023-xtensa:
  hw/xtensa: add virt machine
  target/xtensa: regenerate and re-import test_mmuhifi_c3 core

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-24 09:55:01 +01:00
Igor Mammedov
6a3a2e8282 hppa: drop usage of memory_region_allocate_system_memory() for ROM
machine_hppa_init() violates memory_region_allocate_system_memory() contract
by calling it multiple times which could break with -mem-path. Replace
the second usage (for 'rom') with memory_region_init_ram() instead.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20191008113318.7012-4-imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-10-23 23:37:42 -03:00
Igor Mammedov
2def24f159 ppc: rs6000_mc: drop usage of memory_region_allocate_system_memory()
rs6000mc_realize() violates memory_region_allocate_system_memory() contract
by calling it multiple times which could break -mem-path. Replace it with
plain memory_region_init_ram() instead.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20191008113318.7012-3-imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-10-23 23:37:42 -03:00
Igor Mammedov
6966631c3e sparc64: use memory_region_allocate_system_memory() only for '-m' specified RAM
memory_region_allocate_system_memory() was designed to be called for
allocating inital RAM. Using it mutiple times within one board is not
supported and could fail if -mem-path with non hugepage path is used.

Keep using memory_region_allocate_system_memory() only for initial
RAM and use memory_region_init_ram() for the rest fixed size regions.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20191008113318.7012-2-imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-10-23 23:37:42 -03:00
Tao Xu
8b44d8609f target/i386: Introduce Denverton CPU model
Denverton is the Atom Processor of Intel Harrisonville platform.

For more information:
https://ark.intel.com/content/www/us/en/ark/products/\
codename/63508/denverton.html

Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20190718073405.28301-1-tao3.xu@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-10-23 23:37:42 -03:00
Cédric Le Goater
97c00c5444 spapr/xive: Set the OS CAM line at reset
When a Virtual Processor is scheduled to run on a HW thread, the
hypervisor pushes its identifier in the OS CAM line. When running with
kernel_irqchip=off, QEMU needs to emulate the same behavior.

Set the OS CAM line when the interrupt presenter of the sPAPR core is
reset. This will also cover the case of hot-plugged CPUs.

This change also has the benefit to remove the use of CPU_FOREACH()
which can be unsafe.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20191022163812.330-8-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:34:15 +11:00
Cédric Le Goater
00d6f4db60 ppc/pnv: Fix naming of routines realizing the CPUs
The 'vcpu' suffix is inherited from the sPAPR machine. Use better
names for PowerNV.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20191022163812.330-7-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:34:09 +11:00
Cédric Le Goater
d49e8a9b46 ppc: Reset the interrupt presenter from the CPU reset handler
On the sPAPR machine and PowerNV machine, the interrupt presenters are
created by a machine handler at the core level and are reset
independently. This is not consistent and it raises issues when it
comes to handle hot-plugged CPUs. In that case, the presenters are not
reset. This is less of an issue in XICS, although a zero MFFR could
be a concern, but in XIVE, the OS CAM line is not set and this breaks
the presenting algorithm. The current code has workarounds which need
a global cleanup.

Extend the sPAPR IRQ backend and the PowerNV Chip class with a new
cpu_intc_reset() handler called by the CPU reset handler and remove
the XiveTCTX reset handler which is now redundant.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191022163812.330-6-clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:33:45 +11:00
Cédric Le Goater
aa5ac64b23 ppc/pnv: Add a PnvChip pointer to PnvCore
We will use it to reset the interrupt presenter from the CPU reset
handler.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20191022163812.330-5-clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:33:33 +11:00
Cédric Le Goater
fa06541b5d ppc/pnv: Introduce a PnvCore reset handler
in which individual CPUs are reset. It will ease the introduction of
future change reseting the interrupt presenter from the CPU reset
handler.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20191022163812.330-4-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:32:58 +11:00
Greg Kurz
d1f2b4691a spapr_cpu_core: Implement DeviceClass::reset
Since vCPUs aren't plugged into a bus, we manually register a reset
handler for each vCPU. We also call this handler at realize time
to ensure hot plugged vCPUs are reset before being exposed to the
guest. This results in vCPUs being reset twice at machine reset.
It doesn't break anything but it is slightly suboptimal and above
all confusing.

The hotplug path in device_set_realized() already knows how to reset
a hotplugged device if the device reset handler is present. Implement
one for sPAPR CPU cores that resets all vCPUs under a core.

While here rename spapr_cpu_reset() to spapr_reset_vcpu() for
consistency with spapr_realize_vcpu() and spapr_unrealize_vcpu().

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[clg: add documentation on the reset helper usage ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191022163812.330-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:32:33 +11:00
Cédric Le Goater
90f8db52bb spapr: move CPU reset after presenter creation
This change prepares ground for future changes which will reset the
interrupt presenter in the reset handler of the sPAPR and PowerNV
cores.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191022163812.330-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 13:32:33 +11:00
Greg Kurz
47c8c915b1 spapr: Don't request to unplug the same core twice
We must not call spapr_drc_detach() on a detached DRC otherwise bad things
can happen, ie. QEMU hangs or crashes. This is easily demonstrated with
a CPU hotplug/unplug loop using QMP.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157185826035.3073024.1664101000438499392.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:37:54 +11:00
Alexey Kardashevskiy
cb97526aa4 pseries: Update SLOF firmware image
This aims v4.2 and fixes:
1. full FDT rendering;
2. gcc9 -Waddress-of-packed-member.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
David Gibson
54255c1f65 spapr: Move SpaprIrq::nr_xirqs to SpaprMachineClass
For the benefit of peripheral device allocation, the number of available
irqs really wants to be the same on a given machine type version,
regardless of what irq backends we are using.  That's the case now, but
only because we make sure the different SpaprIrq instances have the same
value except for the special legacy one.

Since this really only depends on machine type version, move the value to
SpaprMachineClass instead of SpaprIrq.  This also puts the code to set it
to the lower value on old machine types right next to setting
legacy_irq_allocation, which needs to go hand in hand.

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>
2019-10-24 09:36:55 +11:00
David Gibson
8cbe71ecb8 spapr: Remove SpaprIrq::nr_msis
The nr_msis value we use here has to line up with whether we're using
legacy or modern irq allocation.  Therefore it's safer to derive it based
on legacy_irq_allocation rather than having SpaprIrq contain a canned
value.

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>
2019-10-24 09:36:55 +11:00
David Gibson
605994e5b7 spapr, xics, xive: Move SpaprIrq::post_load hook to backends
The remaining logic in the post_load hook really belongs to the interrupt
controller backends, and just needs to be called on the active controller
(after the active controller is set to the right thing based on the
incoming migration in the generic spapr_irq_post_load() logic).

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>
2019-10-24 09:36:55 +11:00
David Gibson
567192d486 spapr, xics, xive: Move SpaprIrq::reset hook logic into activate/deactivate
It turns out that all the logic in the SpaprIrq::reset hooks (and some in
the SpaprIrq::post_load hooks) isn't really related to resetting the irq
backend (that's handled by the backends' own reset routines).  Rather its
about getting the backend ready to be the active interrupt controller or
stopping being the active interrupt controller - reset (and post_load) is
just the only time that changes at present.

To make this flow clearer, move the logic into the explicit backend
activate and deactivate hooks.

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>
2019-10-24 09:36:55 +11:00
David Gibson
0a17e0c39f spapr: Remove SpaprIrq::init_kvm hook
This hook is a bit odd.  The only caller is spapr_irq_init_kvm(), but
it explicitly takes an SpaprIrq *, so it's never really called through the
current SpaprIrq.  Essentially this is just a way of passing through a
function pointer so that spapr_irq_init_kvm() can handle some
configuration and error handling logic without duplicating it between the
xics and xive reset paths.

So, make it just take that function pointer.  Because of earlier reworks
to the KVM connect/disconnect code in the xics and xive backends we can
also eliminate some wrapper functions and streamline error handling a bit.

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>
2019-10-24 09:36:55 +11:00
David Gibson
98a39a7927 spapr, xics, xive: Match signatures for XICS and XIVE KVM connect routines
Both XICS and XIVE have routines to connect and disconnect KVM with
similar but not identical signatures.  This adjusts them to match
exactly, which will be useful for further cleanups later.

While we're there, we add an explicit return value to the connect path
to streamline error reporting in the callers.  We remove error
reporting the disconnect path.  In the XICS case this wasn't used at
all.  In the XIVE case the only error case was if the KVM device was
set up, but KVM didn't have the capability to do so which is pretty
obviously impossible.

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>
2019-10-24 09:36:55 +11:00
David Gibson
05289273c0 spapr, xics, xive: Move dt_populate from SpaprIrq to SpaprInterruptController
This method depends only on the active irq controller.  Now that we've
formalized the notion of active controller we can dispatch directly
through that, rather than dispatching via SpaprIrq with the dual
version having to do a second conditional dispatch.

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>
2019-10-24 09:36:55 +11:00
David Gibson
328d8eb24d spapr, xics, xive: Move print_info from SpaprIrq to SpaprInterruptController
This method depends only on the active irq controller.  Now that we've
formalized the notion of active controller we can dispatch directly
through that, rather than dispatching via SpaprIrq with the dual
version having to do a second conditional dispatch.

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>
2019-10-24 09:36:55 +11:00
David Gibson
7bcdbcca2f spapr, xics, xive: Move set_irq from SpaprIrq to SpaprInterruptController
This method depends only on the active irq controller.  Now that we've
formalized the notion of active controller we can dispatch directly through
that, rather than dispatching via SpaprIrq with the dual version having
to do a second conditional dispatch.

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>
2019-10-24 09:36:55 +11:00
David Gibson
81106ddd1a spapr: Formalize notion of active interrupt controller
spapr now has the mechanism of constructing both XICS and XIVE instances of
the SpaprInterruptController interface.  However, only one of the interrupt
controllers will actually be active at any given time, depending on feature
negotiation with the guest.  This is handled in the current code via
spapr_irq_current() which checks the OV5 vector from feature negotiation to
determine the current backend.

Determining the active controller at the point we need it like this
can be pretty confusing, because it makes it very non obvious at what
points the active controller can change.  This can make it difficult
to reason about the code and where a change of active controller could
appear in sequence with other events.

Make this mechanism more explicit by adding an 'active_intc' pointer
and an explicit spapr_irq_update_active_intc() function to update it
from the CAS state.  We also add hooks on the intc backend which will
get called when it is activated or deactivated.

For now we just introduce the switch and hooks, later patches will
actually start using them.

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>
2019-10-24 09:36:55 +11:00
David Gibson
0b0e52b131 spapr, xics, xive: Move irq claim and free from SpaprIrq to SpaprInterruptController
These methods, like cpu_intc_create, really belong to the interrupt
controller, but need to be called on all possible intcs.

Like cpu_intc_create, therefore, make them methods on the intc and
always call it for all existing intcs.

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>
2019-10-24 09:36:55 +11:00
David Gibson
ebd6be089b spapr, xics, xive: Move cpu_intc_create from SpaprIrq to SpaprInterruptController
This method essentially represents code which belongs to the interrupt
controller, but needs to be called on all possible intcs, rather than
just the currently active one.  The "dual" version therefore calls
into the xics and xive versions confusingly.

Handle this more directly, by making it instead a method on the intc
backend, and always calling it on every backend that exists.

While we're there, streamline the error reporting a bit.

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>
2019-10-24 09:36:55 +11:00
David Gibson
150e25f85b spapr, xics, xive: Introduce SpaprInterruptController QOM interface
The SpaprIrq structure is used to represent ths spapr machine's irq
backend.  Except that it kind of conflates two concepts: one is the
backend proper - a specific interrupt controller that we might or
might not be using, the other is the irq configuration which covers
the layout of irq space and which interrupt controllers are allowed.

This leads to some pretty confusing code paths for the "dual"
configuration where its hooks redirect to other SpaprIrq structures
depending on the currently active irq controller.

To clean this up, we start by introducing a new
SpaprInterruptController QOM interface to represent strictly an
interrupt controller backend, not counting anything configuration
related.  We implement this interface in the XICs and XIVE interrupt
controllers, and in future we'll move relevant methods from SpaprIrq
into it.

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>
2019-10-24 09:36:55 +11:00
Greg Kurz
29cb418749 spapr: Set VSMT to smp_threads by default
Support for setting VSMT is available in KVM since linux-4.13. Most distros
that support KVM on POWER already have it. It thus seem reasonable enough
to have the default machine to set VSMT to smp_threads.

This brings contiguous VCPU ids and thus brings their upper bound down to
the machine's max_cpus. This is especially useful for XIVE KVM devices,
which may thus allocate only one VP descriptor per VCPU.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157010411885.246126.12610015369068227139.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Cédric Le Goater
06d26eeb47 ppc/pnv: Use address_space_stq_be() when triggering an interrupt from PSI
Include the XIVE_TRIGGER_PQ bit in the trigger data which is how
hardware signals to the IC that the PQ bits of the interrupt source
have been checked.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191007084102.29776-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Cédric Le Goater
106695ab12 ppc/pnv: Improve trigger data definition
The trigger data is used for both triggers of a HW source interrupts,
PHB, PSI, and triggers for rerouting interrupts between interrupt
controllers.

When an interrupt is rerouted, the trigger data follows an "END
trigger" format. In that case, the remote IC needs EAS containing an
END index to perform a lookup of an END.

An END trigger, bit0 of word0 set to '1', is defined as :

             |0123|4567|0123|4567|0123|4567|0123|4567|
    W0 E=1   |1P--|BLOC|          END IDX            |
    W1 E=1   |M   |           END DATA               |

An EAS is defined as :

             |0123|4567|0123|4567|0123|4567|0123|4567|
    W0       |V---|BLOC|          END IDX            |
    W1       |M   |          END DATA                |

The END trigger adds an extra 'PQ' bit, bit1 of word0 set to '1',
signaling that the PQ bits have been checked. That bit is unused in
the initial EAS definition.

When a HW device performs the trigger, the trigger data follows an
"EAS trigger" format because the trigger data in that case contains an
EAS index which the IC needs to look for.

An EAS trigger, bit0 of word0 set to '0', is defined as :

             |0123|4567|0123|4567|0123|4567|0123|4567|
    W0 E=0   |0P--|---- ---- ---- ---- ---- ---- ----|
    W1 E=0   |BLOC|            EAS INDEX             |

There is also a 'PQ' bit, bit1 of word0 to '1', signaling that the
PQ bits have been checked.

Introduce these new trigger bits and rename the XIVE_SRCNO macros in
XIVE_EAS to reflect better the nature of the data.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191007084102.29776-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Stefan Brankovic
8d745875c2 target/ppc: Fix for optimized vsl/vsr instructions
In previous implementation, invocation of TCG shift function could request
shift of TCG variable by 64 bits when variable 'sh' is 0, which is not
supported in TCG (values can be shifted by 0 to 63 bits). This patch fixes
this by using two separate invocation of TCG shift functions, with maximum
shift amount of 32.

Name of variable 'shifted' is changed to 'carry' so variable naming
is similar to old helper implementation.

Variables 'avrA' and 'avrB' are replaced with variable 'avr'.

Fixes: 4e6d0920e7
Reported-by: "Paul A. Clark" <pc@us.ibm.com>
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Suggested-by: Aleksandar Markovic <aleksandar.markovic@rt-rk.com>
Signed-off-by: Stefan Brankovic <stefan.brankovic@rt-rk.com>
Message-Id: <1570196639-7025-2-git-send-email-stefan.brankovic@rt-rk.com>
Tested-by: Paul A. Clarke  <pc@us.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Greg Kurz
e6144bf912 xics: Make some device types not user creatable
Some device types of the XICS model are exposed to the QEMU command
line:

$ ppc64-softmmu/qemu-system-ppc64 -device help | grep ic[sp]
name "icp"
name "ics"
name "ics-spapr"
name "pnv-icp", desc "PowerNV ICP"

These are internal devices that shouldn't be instantiable by the
user. By the way, they can't be because their respective realize
functions expect link properties that can't be set from the command
line:

qemu-system-ppc64: -device icp: required link 'xics' not found:
 Property '.xics' not found
qemu-system-ppc64: -device ics: required link 'xics' not found:
 Property '.xics' not found
qemu-system-ppc64: -device ics-spapr: required link 'xics' not found:
 Property '.xics' not found
qemu-system-ppc64: -device pnv-icp: required link 'xics' not found:
 Property '.xics' not found

Hide them by setting dc->user_creatable to false in the base class
"icp" and "ics" init functions.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157017826724.337875.14822177178282524024.stgit@bahia.lan>
Message-Id: <157045578962.865784.8551555523533955113.stgit@bahia.lan>
[dwg: Folded reason comment into base patch]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Greg Kurz
878b2b48ee xive: Make some device types not user creatable
Some device types of the XIVE model are exposed to the QEMU command
line:

$ ppc64-softmmu/qemu-system-ppc64 -device help | grep xive
name "xive-end-source", desc "XIVE END Source"
name "xive-source", desc "XIVE Interrupt Source"
name "xive-tctx", desc "XIVE Interrupt Thread Context"

These are internal devices that shouldn't be instantiable by the
user. By the way, they can't be because their respective realize
functions expect link properties that can't be set from the command
line:

qemu-system-ppc64: -device xive-source: required link 'xive' not found:
 Property '.xive' not found
qemu-system-ppc64: -device xive-end-source: required link 'xive' not found:
 Property '.xive' not found
qemu-system-ppc64: -device xive-tctx: required link 'cpu' not found:
 Property '.cpu' not found

Hide them by setting dc->user_creatable to false in their respective
class init functions.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157017473006.331610.2983143972519884544.stgit@bahia.lan>
Message-Id: <157045578401.865784.6058183726552779559.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[dwg: Folded comment update into base patch]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-10-24 09:36:55 +11:00
Peter Maydell
f78398bfe5 nbd patches for 2019-10-22
- add ability for NBD client reconnect
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 =3ifl
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2019-10-22' into staging

nbd patches for 2019-10-22

- add ability for NBD client reconnect

# gpg: Signature made Wed 23 Oct 2019 02:53:08 BST
# gpg:                using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg:                 aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2019-10-22:
  iotests: test nbd reconnect
  block/nbd: nbd reconnect
  qemu-coroutine-sleep: introduce qemu_co_sleep_wake

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-23 16:06:13 +01:00
Peter Maydell
69717d0f89 QAPI patches for 2019-10-22
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 =BC95
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2019-10-22-v3' into staging

QAPI patches for 2019-10-22

# gpg: Signature made Tue 22 Oct 2019 15:56:36 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2019-10-22-v3:
  qapi: Allow introspecting fix for savevm's cooperation with blockdev
  tests/qapi-schema: Cover feature documentation comments
  tests: qapi: Test 'features' of commands
  qapi: Add feature flags to commands
  tests/qapi-schema: Tidy up test output indentation
  qapi: Clear scripts/qapi/doc.py executable bits again
  qapi: Split up scripts/qapi/common.py
  qapi: Move gen_enum(), gen_enum_lookup() back to qapi/types.py
  qapi: Speed up frontend tests
  qapi: Eliminate accidental global frontend state
  qapi: Store pragma state in QAPISourceInfo, not global state
  qapi: Don't suppress doc generation without pragma doc-required

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-23 13:39:08 +01:00
Vladimir Sementsov-Ogievskiy
23ee0ec236 iotests: test nbd reconnect
Add test, which starts backup to nbd target and restarts nbd server
during backup.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20191009084158.15614-4-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2019-10-22 20:51:31 -05:00
Peter Maydell
ec97eb6133 * Fix sign-extension for SMLAL* instructions
* Various ptimer device conversions to new transaction API
  * Add a dummy Samsung SDHCI controller model to exynos4 boards
  * Minor refactorings of RAM creation for some arm boards
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20191022-2' into staging

 * Fix sign-extension for SMLAL* instructions
 * Various ptimer device conversions to new transaction API
 * Add a dummy Samsung SDHCI controller model to exynos4 boards
 * Minor refactorings of RAM creation for some arm boards

# gpg: Signature made Tue 22 Oct 2019 17:44:26 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20191022-2:
  hw/arm/digic4: Inline digic4_board_setup_ram() function
  hw/arm/omap1: Create the RAM in the board
  hw/arm/omap2: Create the RAM in the board
  hw/arm/collie: Create the RAM in the board
  hw/arm/mps2: Use the IEC binary prefix definitions
  hw/arm/xilinx_zynq: Use the IEC binary prefix definitions
  hw/arm/exynos4210: Use the Samsung s3c SDHCI controller
  hw/sd/sdhci: Add dummy Samsung SDHCI controller
  hw/sd/sdhci: Add a comment to distinct the i.MX eSDHC functions
  hw/m68k/mcf5208.c: Switch to transaction-based ptimer API
  hw/watchdog/etraxfs_timer.c: Switch to transaction-based ptimer API
  hw/timer/altera_timer.c: Switch to transaction-based ptimer API
  hw/timer/lm32_timer: Switch to transaction-based ptimer API
  hw/timer/sh_timer: Switch to transaction-based ptimer API
  hw/timer/puv3_ost.c: Switch to transaction-based ptimer API
  hw/timer/arm_mptimer.c: Undo accidental rename of arm_mptimer_init()
  hw/timer/exynos4210_mct: Initialize ptimer before starting it
  target/arm: Fix sign-extension for SMLAL*

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-22 17:50:39 +01:00
Philippe Mathieu-Daudé
90600829b3 hw/arm/digic4: Inline digic4_board_setup_ram() function
Having the RAM creation code in a separate function is not
very helpful. Move this code directly inside the board_init()
function, this will later allow the board to have the QOM
ownership of the RAM.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191021190653.9511-7-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-22 17:44:01 +01:00
Philippe Mathieu-Daudé
4387b253ac hw/arm/omap1: Create the RAM in the board
The SDRAM is incorrectly created in the OMAP310 SoC.
Move its creation in the board code, this will later allow the
board to have the QOM ownership of the RAM.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191021190653.9511-6-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-22 17:44:01 +01:00
Philippe Mathieu-Daudé
e285e8678e hw/arm/omap2: Create the RAM in the board
The SDRAM is incorrectly created in the OMAP2420 SoC.
Move its creation in the board code, this will later allow the
board to have the QOM ownership of the RAM.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191021190653.9511-5-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-22 17:44:01 +01:00
Philippe Mathieu-Daudé
3cd892daa3 hw/arm/collie: Create the RAM in the board
The SDRAM is incorrectly created in the SA1110 SoC.
Move its creation in the board code, this will later allow the
board to have the QOM ownership of the RAM.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20191021190653.9511-4-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-22 17:44:01 +01:00