summaryrefslogtreecommitdiff
path: root/src/include/kconfig.h
diff options
context:
space:
mode:
authorMark Hsieh <mark_hsieh@wistron.corp-partner.google.com>2023-06-12 17:47:07 +0800
committerEric Lai <eric_lai@quanta.corp-partner.google.com>2023-06-14 08:25:59 +0000
commit7fb661fa8a2d413519823b468e784d0452016019 (patch)
tree20ca87929f1547687132e776302cde0ac2ce3183 /src/include/kconfig.h
parent2af14fee5278ac27b09b2ff104782ca0a79ee152 (diff)
mb/google/nissa/var/joxer: Add DmaProperty for ISH
On nissa, 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 joxer. BUG=b:285477026 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 $ ls /sys/kernel/iommu_groups/5/devices 0000:00:12.0 0000:00:12.7 $ cat /sys/kernel/iommu_groups/5/type DMA-FQ After: $ cat /sys/devices/pci0000\:00/0000\:00\:12.0/untrusted 1 $ ls /sys/kernel/iommu_groups/5/devices 0000:00:12.0 0000:00:12.7 $ cat /sys/kernel/iommu_groups/5/type DMA Signed-off-by: Mark Hsieh <mark_hsieh@wistron.corp-partner.google.com> Change-Id: I69b00f0281f4493db157783840d9cdcbb138017f Reviewed-on: https://review.coreboot.org/c/coreboot/+/75758 Reviewed-by: Derek Huang <derekhuang@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include/kconfig.h')
0 files changed, 0 insertions, 0 deletions