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target-arm queue:

Browse source 
* ppc/e500 and arm/virt: only add valid dynamic sysbus devices to the
    platform bus
  * update i.mx31 maintainer list
  * Revert "target/arm: Make number of counters in PMCR follow the CPU"
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210406' into staging

target-arm queue:
 * ppc/e500 and arm/virt: only add valid dynamic sysbus devices to the
   platform bus
 * update i.mx31 maintainer list
 * Revert "target/arm: Make number of counters in PMCR follow the CPU"

# gpg: Signature made Tue 06 Apr 2021 13:25:54 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-20210406:
  Remove myself as i.mx31 maintainer
  Revert "target/arm: Make number of counters in PMCR follow the CPU"
  hw/ppc/e500plat: Only try to add valid dynamic sysbus devices to platform bus
  hw/arm/virt: Only try to add valid dynamic sysbus devices to platform bus
  machine: Provide a function to check the dynamic sysbus allowlist
  include/hw/boards.h: Document machine_class_allow_dynamic_sysbus_dev()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-04-06 16:04:33 +01:00
commit 4216ba1b22
10 changed files with 79 additions and 38 deletions
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39
include/hw/boards.h
View file

@ -36,7 +36,46 @@ void machine_set_cpu_numa_node(MachineState *machine,
const CpuInstanceProperties *props,
Error **errp);
/**
* machine_class_allow_dynamic_sysbus_dev: Add type to list of valid devices
* @mc: Machine class
* @type: type to allow (should be a subtype of TYPE_SYS_BUS_DEVICE)
*
* Add the QOM type @type to the list of devices of which are subtypes
* of TYPE_SYS_BUS_DEVICE but which are still permitted to be dynamically
* created (eg by the user on the command line with -device).
* By default if the user tries to create any devices on the command line
* that are subtypes of TYPE_SYS_BUS_DEVICE they will get an error message;
* for the special cases which are permitted for this machine model, the
* machine model class init code must call this function to add them
* to the list of specifically permitted devices.
*/
void machine_class_allow_dynamic_sysbus_dev(MachineClass *mc, const char *type);
/**
* device_is_dynamic_sysbus: test whether device is a dynamic sysbus device
* @mc: Machine class
* @dev: device to check
*
* Returns: true if @dev is a sysbus device on the machine's list
* of dynamically pluggable sysbus devices; otherwise false.
*
* This function checks whether @dev is a valid dynamic sysbus device,
* by first confirming that it is a sysbus device and then checking it
* against the list of permitted dynamic sysbus devices which has been
* set up by the machine using machine_class_allow_dynamic_sysbus_dev().
*
* It is valid to call this with something that is not a subclass of
* TYPE_SYS_BUS_DEVICE; the function will return false in this case.
* This allows hotplug callback functions to be written as:
* if (device_is_dynamic_sysbus(mc, dev)) {
* handle dynamic sysbus case;
* } else if (some other kind of hotplug) {
* handle that;
* }
*/
bool device_is_dynamic_sysbus(MachineClass *mc, DeviceState *dev);
/*
* Checks that backend isn't used, preps it for exclusive usage and
* returns migratable MemoryRegion provided by backend.