78380 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
15ce12cfdd hw/arm/aspeed: Describe each PCA9552 device
We have 2 distinct PCA9552 devices. Set their description
to distinguish them when looking at the trace events.

Description name taken from:
https://github.com/open-power/witherspoon-xml/blob/master/witherspoon.xml

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-8-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
b989b89f67 hw/misc/pca9552: Trace GPIO High/Low events
Add a trivial representation of the PCA9552 GPIOs.

Example booting obmc-phosphor-image:

  $ qemu-system-arm -M witherspoon-bmc -trace pca955x_gpio_status
  1592689902.327837:pca955x_gpio_status pca-unspecified GPIOs 0-15 [*...............]
  1592689902.329934:pca955x_gpio_status pca-unspecified GPIOs 0-15 [**..............]
  1592689902.330717:pca955x_gpio_status pca-unspecified GPIOs 0-15 [***.............]
  1592689902.331431:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****............]
  1592689902.332163:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........*..]
  1592689902.332888:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........**.]
  1592689902.333629:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........***]
  1592690032.793289:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........*.*]
  1592690033.303163:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........***]
  1592690033.812962:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........*.*]
  1592690034.323234:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........***]
  1592690034.832922:pca955x_gpio_status pca-unspecified GPIOs 0-15 [****.........*.*]

We notice the GPIO #14 (front-power LED) starts to blink.

This LED is described in the witherspoon device-tree [*]:

  front-power {
      retain-state-shutdown;
      default-state = "keep";
      gpios = <&pca0 14 GPIO_ACTIVE_LOW>;
  };

[*] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts?id=b1f9be9392f0#n140

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-7-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
2df252d879 hw/misc/pca9552: Add a 'description' property for debugging purpose
Add a description field to distinguish between multiple devices.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-6-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
736132e455 hw/misc/pca9552: Add generic PCA955xClass, parent of TYPE_PCA9552
Extract the code common to the PCA955x family in PCA955xClass,
keeping the PCA9552 specific parts into pca9552_class_init().
Remove the 'TODO' comment added in commit 5141d4158cf.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-5-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
ec17228a25 hw/misc/pca9552: Rename generic code as pca955x
Various code from the PCA9552 device model is generic to the
PCA955X family. We'll split the generic code in a base class
in the next commit. To ease review, first do a dumb renaming.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
8208335b95 hw/misc/pca9552: Rename 'nr_leds' as 'pin_count'
The PCA9552 device does not expose LEDs, but simple pins
to connnect LEDs to. To be clearer with the device model,
rename 'nr_leds' as 'pin_count'.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
d88c42ff2c hw/i2c/core: Add i2c_try_create_slave() and i2c_realize_and_unref()
Extract i2c_try_create_slave() and i2c_realize_and_unref()
from i2c_create_slave().
We can now set properties on a I2CSlave before it is realized.

This is in line with the recent qdev/QOM changes merged
in commit 6675a653d2e.

Reviewed-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
888b2b034a hw/arm/aspeed: QOM'ify AspeedMachineState
AspeedMachineState seems crippled. We use incorrectly 2
different structures to do the same thing. Merge them
altogether:
- Move AspeedMachine fields to AspeedMachineState
- AspeedMachineState is now QOM
- Remove unused AspeedMachine structure

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072132.2868-4-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
612b219a2a hw/arm/aspeed: Rename AspeedBoardState as AspeedMachineState
To have a more consistent naming, rename AspeedBoardState
as AspeedMachineState.

Suggested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072132.2868-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Philippe Mathieu-Daudé
f489960d36 hw/arm/aspeed: Remove extraneous MemoryRegion object owner
I'm confused by this code, 'bmc' is created as:

  bmc = g_new0(AspeedBoardState, 1);

Then we use it as QOM owner for different MemoryRegion objects.
But looking at memory_region_init_ram (similarly for ROM):

  void memory_region_init_ram(MemoryRegion *mr,
                              struct Object *owner,
                              const char *name,
                              uint64_t size,
                              Error **errp)
  {
      DeviceState *owner_dev;
      Error *err = NULL;

      memory_region_init_ram_nomigrate(mr, owner, name, size, &err);
      if (err) {
          error_propagate(errp, err);
          return;
      }
      /* This will assert if owner is neither NULL nor a DeviceState.
       * We only want the owner here for the purposes of defining a
       * unique name for migration. TODO: Ideally we should implement
       * a naming scheme for Objects which are not DeviceStates, in
       * which case we can relax this restriction.
       */
      owner_dev = DEVICE(owner);
      vmstate_register_ram(mr, owner_dev);
  }

The expected assertion is not triggered ('bmc' is not NULL neither
a DeviceState).

'bmc' structure is defined as:

  struct AspeedBoardState {
      AspeedSoCState soc;
      MemoryRegion ram_container;
      MemoryRegion max_ram;
  };

What happens is when using 'OBJECT(bmc)', the QOM macros cast the
memory pointed by bmc, which first member is 'soc', which is
initialized ...:

  object_initialize_child(OBJECT(machine), "soc",
                          &bmc->soc, amc->soc_name);

The 'soc' object is indeed a DeviceState, so the assertion passes.

Since this is fragile and only happens to work by luck, remove the
dangerous OBJECT(bmc) owner argument.

Note, this probably breaks migration for this machine.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200623072132.2868-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 14:30:28 +01:00
Peter Maydell
87fb952da8 Pull request
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

# gpg: Signature made Wed 24 Jun 2020 11:01:57 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  block/nvme: support nested aio_poll()
  block/nvme: keep BDRVNVMeState pointer in NVMeQueuePair
  block/nvme: clarify that free_req_queue is protected by q->lock
  block/nvme: switch to a NVMeRequest freelist
  block/nvme: don't access CQE after moving cq.head
  block/nvme: drop tautologous assertion
  block/nvme: poll queues without q->lock
  check-block: enable iotests with SafeStack
  configure: add flags to support SafeStack
  coroutine: add check for SafeStack in sigaltstack
  coroutine: support SafeStack in ucontext backend
  minikconf: explicitly set encoding to UTF-8

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 13:48:54 +01:00
Jingqi Liu
ce317be98d exec: fetch the alignment of Linux devdax pmem character device nodes
If the backend file is devdax pmem character device, the alignment
specified by the option 'align=NUM' in the '-object memory-backend-file'
needs to match the alignment requirement of the devdax pmem character device.

This patch uses the interfaces of libdaxctl to fetch the devdax pmem file
'align', so that we can compare it with the NUM of 'align=NUM'.
The NUM needs to be larger than or equal to the devdax pmem file 'align'.

It also fixes the problem that mmap() returns failure in qemu_ram_mmap()
when the NUM of 'align=NUM' is less than the devdax pmem file 'align'.

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Jingqi Liu <jingqi.liu@intel.com>
Message-Id: <20200429085011.63752-2-jingqi.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 07:21:24 -04:00
Peter Maydell
10f7ffabf9 qemu-macppc patches
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Merge remote-tracking branch 'remotes/mcayland/tags/qemu-macppc-20200626' into staging

qemu-macppc patches

# gpg: Signature made Fri 26 Jun 2020 10:15:36 BST
# gpg:                using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F
# gpg:                issuer "mark.cave-ayland@ilande.co.uk"
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [full]
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-macppc-20200626: (22 commits)
  adb: add ADB bus trace events
  adb: use adb_device prefix for ADB device trace events
  adb: only call autopoll callbacks when autopoll is not blocked
  mac_via: rework ADB state machine to be compatible with both MacOS and Linux
  mac_via: move VIA1 portB write logic into mos6522_q800_via1_write()
  pmu: add adb_autopoll_block() and adb_autopoll_unblock() functions
  cuda: add adb_autopoll_block() and adb_autopoll_unblock() functions
  adb: add autopoll_blocked variable to block autopoll
  adb: use adb_request() only for explicit requests
  adb: add status field for holding information about the last ADB request
  adb: keep track of devices with pending data
  adb: introduce new ADBDeviceHasData method to ADBDeviceClass
  mac_via: convert to use ADBBusState internal autopoll variables
  pmu: convert to use ADBBusState internal autopoll variables
  cuda: convert to use ADBBusState internal autopoll variables
  adb: create autopoll variables directly within ADBBusState
  adb: introduce realize/unrealize and VMStateDescription for ADB bus
  pmu: honour autopoll_rate_ms when rearming the ADB autopoll timer
  pmu: fix duplicate autopoll mask variable
  cuda: convert ADB autopoll timer from ns to ms
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 12:14:18 +01:00
Jingqi Liu
21b2eca6fc configure: add libdaxctl support
Add a pair of configure options --{enable,disable}-libdaxctl to control
whether QEMU is compiled with libdaxctl [1]. Libdaxctl is a utility
library for managing the device dax subsystem.

QEMU uses mmap(2) to maps vNVDIMM backends and aligns the mapping
address to the page size (getpagesize(2)) by default. However, some
types of backends may require an alignment different than the page
size. The 'align' option is provided to memory-backend-file to allow
users to specify the proper alignment.

For device dax (e.g., /dev/dax0.0), the 'align' option needs to match
the alignment requirement of the device dax, which can be fetched
through the APIs of libdaxctl version 57 or up.

[1] Libdaxctl is a part of ndctl project.
The project's repository is: https://github.com/pmem/ndctl

For more information about libdaxctl APIs, you can refer to the
comments in source code of: pmem/ndctl/daxctl/lib/libdaxctl.c.

Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Jingqi Liu <jingqi.liu@intel.com>
Message-Id: <20200429085011.63752-4-jingqi.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:31 -04:00
Pavel Dovgalyuk
677a3baba4 replay: synchronize on every virtual timer callback
Sometimes virtual timer callbacks depend on order
of virtual timer processing and warping of virtual clock.
Therefore every callback should be logged to make replay deterministic.
This patch creates a checkpoint before every virtual timer callback.
With these checkpoints virtual timers processing and clock warping
events order is completely deterministic.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Acked-by: Alex Bennée <alex.bennee@linaro.org>

--

v2:
  - remove mutex lock/unlock for virtual clock checkpoint since it is
    not process any asynchronous events (commit ca9759c2a92f528f256fef0e3922416f7bb47bf9)
  - bump record/replay log file version
Message-Id: <159012932716.27256.8854065545365559921.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:30 -04:00
Pavel Dovgalyuk
255ae6e215 replay: notify the main loop when there are no instructions
When QEMU is executed in console mode without any external event sources,
main loop may sleep for a very long time. But in case of replay
there is another event source - event log.
This patch adds main loop notification when the vCPU loop has nothing
to do and main loop should process the inputs from the event log.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <159013007895.28110.2020104406699709721.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:30 -04:00
Michael S. Tsirkin
5d971f9e67 memory: Revert "memory: accept mismatching sizes in memory_region_access_valid"
Memory API documentation documents valid .min_access_size and .max_access_size
fields and explains that any access outside these boundaries is blocked.

This is what devices seem to assume.

However this is not what the implementation does: it simply
ignores the boundaries unless there's an "accepts" callback.

Naturally, this breaks a bunch of devices.

Revert to the documented behaviour.

Devices that want to allow any access can just drop the valid field,
or add the impl field to have accesses converted to appropriate
length.

Cc: qemu-stable@nongnu.org
Reviewed-by: Richard Henderson <rth@twiddle.net>
Fixes: CVE-2020-13754
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1842363
Fixes: a014ed07bd5a ("memory: accept mismatching sizes in memory_region_access_valid")
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20200610134731.1514409-1-mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:30 -04:00
Paolo Bonzini
4b7c06837a libqos: pci-pc: use 32-bit write for EJ register
The memory region ops have min_access_size == 4 so obey it.

Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:30 -04:00
Paolo Bonzini
89ed83d8b2 libqos: usb-hcd-ehci: use 32-bit write for config register
The memory region ops have min_access_size == 4 so obey it.

Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:29 -04:00
David CARLIER
ae2b72072b util/getauxval: Porting to FreeBSD getauxval feature
From d7f9d40777d1ed7c9450b0be4f957da2993dfc72 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Fri, 12 Jun 2020 09:39:17 +0100
Subject: [PATCH] util/getauxval: Porting to FreeBSD getauxval feature

FreeBSD has a similar API for auxiliary vector.

Signed-off-by: David Carlier <devnexen@gmail.com>
Message-Id: <CA+XhMqxTU6PUSQBpbA9VrS1QZfqgrCAKUCtUF-x2aF=fCMTDOw@mail.gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:29 -04:00
Jay Zhou
494cd11d76 kvm: support to get/set dirty log initial-all-set capability
Since the new capability KVM_DIRTY_LOG_INITIALLY_SET of
KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 has been introduced in the
kernel, tweak the userspace side to detect and enable this
capability.

Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20200304025554.2159-1-jianjay.zhou@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-06-26 06:45:29 -04:00
Mark Cave-Ayland
e590e7f014 adb: add ADB bus trace events
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-23-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
fa6c953964 adb: use adb_device prefix for ADB device trace events
This is to allow us to distinguish between ADB device events and ADB
bus events separately.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-22-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
913f47ef96 adb: only call autopoll callbacks when autopoll is not blocked
Handle this at the ADB bus level so that individual implementations do not need
to handle this themselves.

Finally add an assert() into adb_request() to prevent developers from accidentally
making an explicit ADB request without blocking autopoll.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-21-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
975fcedd31 mac_via: rework ADB state machine to be compatible with both MacOS and Linux
The existing ADB state machine is designed to work with Linux which has a different
interpretation of the state machine detailed in "Guide to the Macintosh Family
Hardware". In particular the current Linux implementation includes an extra change
to IDLE state when switching the VIA between send and receive modes which does not
occur in MacOS, and omitting this transition causes the current mac_via ADB state
machine to fail.

Rework the ADB state machine accordingly so that it can enumerate and autopoll the
ADB under both Linux and MacOS, including the addition of the new adb_autopoll_block()
and adb_autopoll_unblock() functions.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-20-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
378a503479 mac_via: move VIA1 portB write logic into mos6522_q800_via1_write()
Currently the logic is split between the mos6522 portB_write() callback and
the memory region used to capture the VIA1 MMIO accesses. Move everything
into the latter mos6522_q800_via1_write() function to keep all the logic in
one place to make it easier to follow.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-19-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
cf093b0772 pmu: add adb_autopoll_block() and adb_autopoll_unblock() functions
Ensure that the PMU buffer is protected from autopoll requests overwriting
its contents whilst existing PMU requests are in progress.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-18-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
45c9d721ef cuda: add adb_autopoll_block() and adb_autopoll_unblock() functions
Ensure that the CUDA buffer is protected from autopoll requests overwriting
its contents whilst existing CUDA requests are in progress.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-17-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:52 +01:00
Mark Cave-Ayland
4e5df0369f adb: add autopoll_blocked variable to block autopoll
Whilst autopoll is enabled it is necessary to prevent the ADB buffer contents
from being overwritten until the host has read back the response in its
entirety.

Add adb_autopoll_block() and adb_autopoll_unblock() functions in preparation
for ensuring that the ADB buffer contents are protected for explicit ADB
requests.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-16-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
d2288b7584 adb: use adb_request() only for explicit requests
Currently adb_request() is called both for explicit ADB requests and internal
autopoll requests via adb_poll().

Move the current functionality into do_adb_request() to be used internally and
add a simple adb_request() wrapper for explicit requests.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-15-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
3fe02cc8b3 adb: add status field for holding information about the last ADB request
Currently only 2 bits are defined: one to indicate if the request timed out (no
reply) and another to indicate whether the request was the result of an autopoll
operation.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-14-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
244a0ee965 adb: keep track of devices with pending data
Add a new pending variable to ADBBusState which is a bitmask indicating which
ADB devices have data to send. Update the bitmask every time that an ADB
request is executed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-13-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
969ca2f7a1 adb: introduce new ADBDeviceHasData method to ADBDeviceClass
This is required later to allow devices to assert a service request (SRQ)
signal to indicate that it has data to send, without having to consume it.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-12-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
f3d61457e8 mac_via: convert to use ADBBusState internal autopoll variables
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-11-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
df381d584c pmu: convert to use ADBBusState internal autopoll variables
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-10-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
b12a0b164c cuda: convert to use ADBBusState internal autopoll variables
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-9-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
da52c083ac adb: create autopoll variables directly within ADBBusState
Rather than each ADB implementation requiring its own functions to manage
autopoll state, timers, and autopoll masks prepare to move this information
directly into ADBBusState.

Add external functions within adb.h to allow each ADB implementation to
manage the new autopoll variables.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-8-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
0606b28830 adb: introduce realize/unrealize and VMStateDescription for ADB bus
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-7-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
414eb1d500 pmu: honour autopoll_rate_ms when rearming the ADB autopoll timer
Don't use a fixed value but instead use the default value from the ADB bus
state.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-6-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
dcb091c40e pmu: fix duplicate autopoll mask variable
It seems that during the initial work to introduce the via-pmu ADB support a
duplicate autopoll mask variable was accidentally left in place.

Remove the duplicate autopoll_mask variable and switch everything over to
use adb_poll_mask instead.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-5-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
d9b898943d cuda: convert ADB autopoll timer from ns to ms
This is in preparation for consolidating all of the ADB autopoll management
in one place.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-4-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
167f1667b1 adb: fix adb-mouse read length and revert disable-reg3-direct-writes workaround
Commit 84051eb400 "adb: add property to disable direct reg 3 writes" introduced
a workaround for spurious writes to ADB register 3 when MacOS 9 enables
autopoll on the mouse device. Further analysis shows that the problem is that
only a partial request is sent, and since the len parameter is ignored then
stale data from the previous request is used causing the incorrect address
assignment.

Remove the disable-reg3-direct-writes workaround and instead check the length
parameter when the write is attempted, discarding the invalid request.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-3-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Mark Cave-Ayland
bcaaefdbb2 adb: coding style update to fix checkpatch errors
This will help ensure that style guidelines are being maintained during
subsequent changes.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200623204936.24064-2-mark.cave-ayland@ilande.co.uk>
2020-06-26 10:13:51 +01:00
Peter Maydell
611ac63305 ppc patch queue 2020-06-26
Here's another pull request for qemu-5.1.  Not very much in this one,
 just a handful of assorted minor fixes and cleanups.
 
 I'm about to go on holiday for a couple of weeks, so this will be my
 last PR before the freeze, and maybe the last for 5.1 at all.  If
 there's some super important fix we need, Greg Kurz will handle it.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.1-20200626' into staging

ppc patch queue 2020-06-26

Here's another pull request for qemu-5.1.  Not very much in this one,
just a handful of assorted minor fixes and cleanups.

I'm about to go on holiday for a couple of weeks, so this will be my
last PR before the freeze, and maybe the last for 5.1 at all.  If
there's some super important fix we need, Greg Kurz will handle it.

# gpg: Signature made Fri 26 Jun 2020 07:36:59 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-5.1-20200626:
  target/ppc: Remove TIDR from POWER10 processor
  ppc/pnv: Silence missing BMC warning with qtest
  spapr: Fix typos in comments and macro indentation
  spapr: Simplify some warning printing paths in spapr_caps.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-26 09:30:29 +01:00
Cédric Le Goater
737ef968d4 target/ppc: Remove TIDR from POWER10 processor
It is not part of Power ISA Version 3.1.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200623154534.266065-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-06-26 09:22:30 +10:00
Greg Kurz
38d2448a37 ppc/pnv: Silence missing BMC warning with qtest
The device introspect test in qtest emits some warnings with the
the pnv machine types during the "nodefaults" phase:

TEST check-qtest-ppc64: tests/qtest/device-introspect-test
qemu-system-ppc64: warning: machine has no BMC device. Use '-device
ipmi-bmc-sim,id=bmc0 -device isa-ipmi-bt,bmc=bmc0,irq=10' to define
one
qemu-system-ppc64: warning: machine has no BMC device. Use '-device
ipmi-bmc-sim,id=bmc0 -device isa-ipmi-bt,bmc=bmc0,irq=10' to define
one
qemu-system-ppc64: warning: machine has no BMC device. Use '-device
ipmi-bmc-sim,id=bmc0 -device isa-ipmi-bt,bmc=bmc0,irq=10' to define
one

This is expected since the pnv machine doesn't create the internal
BMC simulator fallback when "-nodefaults" is passed on the command
line, but these warnings appear in ci logs and confuse people.

Not having a BMC isn't recommended but it is still a supported
configuration, so a straightforward fix is to just silent this
warning when qtest is enabled.

Fixes: 25f3170b0654 ("ppc/pnv: Create BMC devices only when defaults are enabled")
Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159280903824.485572.831378159272329707.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-06-26 09:22:30 +10:00
Gustavo Romero
7861e083f8 spapr: Fix typos in comments and macro indentation
This commit fixes typos in spapr_vio_reg_to_irq() comments and a macro
indentation.

Signed-off-by: Gustavo Romero <gromero@linux.ibm.com>
Message-Id: <1590710681-12873-1-git-send-email-gromero@linux.ibm.com>
Acked-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-06-26 09:22:30 +10:00
Greg Kurz
a816f2d6b8 spapr: Simplify some warning printing paths in spapr_caps.c
We obviously only want to print a warning in these cases, but this is done
in a rather convoluted manner. Just use warn_report() instead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159188281098.70166.18387926536399257573.stgit@bahia.lan>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-06-26 09:22:29 +10:00
Peter Maydell
5acc270a35 target/xtensa fixes for 5.1:
- fix access to special registers missing in the core configuration;
 - fix simcall opcode behavior for new hardware;
 - drop gen_io_end call from xtensa translator.
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 =qFHa
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/xtensa/tags/20200625-xtensa' into staging

target/xtensa fixes for 5.1:

- fix access to special registers missing in the core configuration;
- fix simcall opcode behavior for new hardware;
- drop gen_io_end call from xtensa translator.

# gpg: Signature made Thu 25 Jun 2020 09:08:58 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/20200625-xtensa:
  target/xtensa: drop gen_io_end call
  target/xtensa: fix simcall for newer hardware
  target/xtensa: fetch HW version from configuration overlay
  target/xtensa: work around missing SR definitions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-25 21:20:45 +01:00
Peter Maydell
63d211993b virtio,acpi,pci: fixes, cleanups.
Fixes, cleanups in ACPI, PCI, virtio.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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 fVXwXsebRokCpEYgWgmyK9D2SajNjmDWBdyCHvO64FClpAzZWlc=
 =J1qe
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,acpi,pci: fixes, cleanups.

Fixes, cleanups in ACPI, PCI, virtio.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 25 Jun 2020 07:48:47 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  Rename use_acpi_pci_hotplug to more appropriate use_acpi_hotplug_bridge
  Stop vhost-user sending uninitialized mmap_offsets
  docs/specs/tpm: ACPI boot now supported for TPM/ARM
  arm/acpi: Add the TPM2.0 device under the DSDT
  acpi: Some build_tpm2() code reshape
  tests/acpi: update expected data files
  acpi: q35: drop _SB.PCI0.ISA.LPCD opregion.
  acpi: drop build_piix4_pm()
  acpi: drop serial/parallel enable bits from dsdt
  acpi: simplify build_isa_devices_aml()
  acpi: factor out fw_cfg_add_acpi_dsdt()
  acpi: move aml builder code for i8042 (kbd+mouse) device
  floppy: move cmos_get_fd_drive_type() from pc
  floppy: make isa_fdc_get_drive_max_chs static
  acpi: move aml builder code for floppy device
  acpi: bios-tables-test: show more context on asl diffs
  qtest: allow DSDT acpi table changes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-25 16:52:42 +01:00