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bhyve: add ioctl to get acpi resources of an acpi device
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Authored by corvink on Nov 30 2021, 1:07 PM.
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Details

Reviewers
manu
markj
jhb
Group Reviewers
bhyve
Summary

For passthru of ACPI devices like a TPM we need to get the current
resources (CRS) used by the device. Add an ioctl to query that data.

Note: See https://github.com/Beckhoff/freebsd-src/commits/phab/corvink/vm_get_acpi_device_info

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rG FreeBSD src repository
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Event Timeline

This patch was required for my TPM passthrough patch (D32961). I'll change the TPM passthrough patch in the future. After that, this patch won't be required any more.