SB.PCI0.SMB0 device drivers unavailable
Bug #1856724 reported by
Rafal Kupiec
This bug affects 4 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
QEMU |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
QEMU 4.2 introduces new device with this code:
static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
{
Aml *scope = aml_scope(
Aml *dev = aml_device("SMB0");
aml_append(dev, aml_name_
aml_append(dev, aml_name_
build_
aml_
aml_
}
It is detected by Windows 10 as 'Unknown Device' and there is no driver available.
Please provide a working Windows driver or give ability to disable this device.
Changed in qemu: | |
status: | Fix Committed → Fix Released |
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I noticed this as well. Apparently it was introduced in the following commit:
https:/ /github. com/qemu/ qemu/commit/ ebe15582cafeb94 4a1c6e99aa526e8 1a1551c567
Saying:
---
pc: Add an SMB0 ACPI device to q35
This is so I2C devices can be found in the ACPI namespace. Currently
that's only IPMI, but devices can be easily added now.
Adding the devices required some PCI information, and the bus itself
to be added to the PCMachineState structure.
Note that this only works on Q35, the ACPI for PIIX4 is not capable
of handling an SMBus device.
Cc: Michael S. Tsirkin <email address hidden>
Cc: Igor Mammedov <email address hidden>
Signed-off-by: Corey Minyard <email address hidden>
Reviewed-by: Paolo Bonzini <email address hidden>
---