diff options
| author | Alexey Kardashevskiy <aik@amd.com> | 2025-12-02 13:44:48 +1100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2025-12-02 12:06:45 -0800 |
| commit | eeb934137debfbe98be61a27756a605edf492ed3 (patch) | |
| tree | ec49887940c079bc172fd59bf18e21aa58dedf0e /rust/helpers/cpu.c | |
| parent | c3859de858aa7ae0d0a5ca21e8ee9792f2f256b6 (diff) | |
iommu/amd: Report SEV-TIO support
The SEV-TIO switch in the AMD BIOS is reported to the OS via
the IOMMU Extended Feature 2 register (EFR2), bit 1.
Add helper to parse the bit and report the feature presence.
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
Link: https://patch.msgid.link/20251202024449.542361-4-aik@amd.com
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'rust/helpers/cpu.c')
0 files changed, 0 insertions, 0 deletions