diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-12-23 14:58:54 +0000 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2022-12-27 04:41:33 +0000 |
| commit | b4767ce169b202af2a9091275e30881172810fc6 (patch) | |
| tree | 12439a38007834294dae3c0340160fca8c7220d1 /src | |
| parent | 3a60e5c827b4ae87114f208a28dfd43e6145ccd5 (diff) | |
mb/google/brya/var/marasov: Add DmaProperty for ISH
On Marasov, the ISH is running closed source firmware, so the ChromeOS
security requirements specify it must be behind an IOMMU. Add
DmaProperty to the ISH _DSD on Marasov.
TEST=Kernel marks ISH (PCI device 12.0) as untrusted, and changes the
IOMMU group type to "DMA". Also, device still goes to S0i3.
Before:
$ cat /sys/devices/pci0000\:00/0000\:00\:12.0/untrusted
0
After:
$ cat /sys/devices/pci0000\:00/0000\:00\:12.0/untrusted
1
Change-Id: I4b65b8909c41b06852fe7771375029bd2e76e111
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71263
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/marasov/overridetree.cb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/marasov/overridetree.cb b/src/mainboard/google/brya/variants/marasov/overridetree.cb index 484a6327f2..bf9d5e037c 100644 --- a/src/mainboard/google/brya/variants/marasov/overridetree.cb +++ b/src/mainboard/google/brya/variants/marasov/overridetree.cb @@ -206,6 +206,10 @@ chip soc/intel/alderlake probe STORAGE STORAGE_NVME end device ref ish on + chip drivers/intel/ish + register "add_acpi_dma_property" = "true" + device generic 0 on end + end probe STORAGE STORAGE_UFS end device ref ufs on |