https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223837
Bug ID: 223837
Summary: vmm/amd: IVHD entries are not applied to the device
table
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
The AMD-Vi support code does parse IVHD entries in IVRS table.
The entries are stored in softc->dev_cfg[] of the ivhd driver.
But that information is never applied to a device table.
For instance, see tables 92, 93, 94 in the AMD IOMMU specification. Those
define the location of the DTE setting field in 4-byte IVHD entries and the
meaning of bits in it. And then see table 7 on how those bits should be
translated to bits in an actual Device Table Entry corresponding to a device
described in the IVHD entry.
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