[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [RFC v4 08/13] ide: enumerate_slots implementation
From: |
John Snow |
Subject: |
Re: [Qemu-devel] [RFC v4 08/13] ide: enumerate_slots implementation |
Date: |
Thu, 17 Aug 2017 14:40:41 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 08/17/2017 12:54 AM, Markus Armbruster wrote:
> John Snow <address@hidden> writes:
>
>> On 08/14/2017 05:57 PM, Eduardo Habkost wrote:
>>> Example output when using "-machine q35":
>>>
>>> {
>>> "available": true,
>>> "count": 1,
>>> "device-types": [
>>> "ide-device"
>>> ],
>>> "hotpluggable": false,
>>> "opts": [
>>> { "option": "unit", "values": 0 },
>>> { "option": "bus", "values": "ide.2" }
>>> ],
>>> "opts-complete": true
>>> }
>>> {
>>> "available": false,
>>> "count": 1,
>>> "device": "/machine/unattached/device[19]",
>>> "device-types": [
>>> "ide-device"
>>> ],
>>> "hotpluggable": false,
>>> "opts": [
>>> { "option": "unit", "values": 1 },
>>> { "option": "bus", "values": "ide.2" } ],
>>> "opts-complete": true
>>> }
>>> {
>>> "available": true,
>>> "count": 10,
>>> "device-types": [
>>> "ide-device"
>>> ],
>>> "hotpluggable": false,
>>> "opts": [
>>> { "option": "unit", "values": [ [ 0, 1 ] ] },
>>
>> Hm, these unit values aren't really correct -- we do not support
>> primary/secondary semantics for IDE buses on the AHCI device. I guess
>> they technically exist, but you cannot use them for anything.
>>
>> Should I do something to "disable" or otherwise hide the unusable
>> secondary unit slots for AHCI devices?
>
> I think that would make this introspection more useful.
>
OK, let me look into how to meaningfully disable them. I didn't think
they were addressable in any tangible way currently, you certainly can't
put devices on them. I'm not sure where these values are coming from --
I'll play with the patches.
The only reason they even technically exist is because IDEBus comes
indelibly with two IDEStates baked in -- it can't be changed currently,
because everything's all wonky in IDE land.
I really ought to just rip off the bandaid and do an aggressive
refactoring ...... :|
- Re: [Qemu-devel] [RFC v4 02/13] qapi: qobject_compare() helper, (continued)
- [Qemu-devel] [RFC v4 03/13] qdev: Add BusClass::device_type field, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 04/13] qdev: Slot info helpers, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 05/13] query-device-slots: Collapse similar entries, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 06/13] qdev core: generic enumerate_slots implementation, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 07/13] qdev: Enumerate CPU slots on query-device-slots, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 09/13] pci: pci_bus_has_pcie_upstream_port() function, Eduardo Habkost, 2017/08/14
- [Qemu-devel] [RFC v4 08/13] ide: enumerate_slots implementation, Eduardo Habkost, 2017/08/14
[Qemu-devel] [RFC v4 10/13] pci: device-number & function properties, Eduardo Habkost, 2017/08/14
[Qemu-devel] [RFC v4 11/13] pci: enumerate_slots implementation, Eduardo Habkost, 2017/08/14
[Qemu-devel] [RFC v4 12/13] usb: enumerate_slots implementation, Eduardo Habkost, 2017/08/14
[Qemu-devel] [RFC v4 13/13] tests: Experimental query-device-slots test code, Eduardo Habkost, 2017/08/14
Re: [Qemu-devel] [libvirt] [RFC v4 00/13] qmp: query-device-slots command, no-reply, 2017/08/14
Re: [Qemu-devel] [RFC v4 00/13] qmp: query-device-slots command, Eric Blake, 2017/08/15