[SRU][P:gcp][PATCH 2/2] UBUNTU: [Packaging] gcp: disable CONFIG_IOMMU_DEFAULT_DMA_STRICT enable CONFIG_IOMMU_DEFAULT_DMA_LAZY

[Tim Whisonant]

BugLink: https://bugs.launchpad.net/bugs/2071471
BugLink: https://bugs.launchpad.net/bugs/2126453

NVIDIA Grace platform recommends this setting as
of the 25 Sep 2025 list of configs found at [1].

[1] https://docs.nvidia.com/grace/patches-config-guide/platform-software-patches-config.html

Signed-off-by: Tim Whisonant <tim.whisonant at canonical.com>
---
 debian.gcp/config/annotations | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/debian.gcp/config/annotations b/debian.gcp/config/annotations
index dad335cd7b47c..c7a9e413d8671 100644
--- a/debian.gcp/config/annotations
+++ b/debian.gcp/config/annotations
@@ -33,6 +33,12 @@ CONFIG_GPIO_CDEV_V1                             note<'LP: #1953613'>
 CONFIG_IDPF                                     policy<{'amd64': 'm', 'arm64': 'm'}>
 CONFIG_IDPF                                     note<'LP: #2039720, LP: #2058052, LP: #2086212'>
 
+CONFIG_IOMMU_DEFAULT_DMA_LAZY                   policy<{'amd64': 'y', 'arm64': 'y'}>
+CONFIG_IOMMU_DEFAULT_DMA_LAZY                   note<'LP: #2071471 LP: #2126453, Google Grace'>
+
+CONFIG_IOMMU_DEFAULT_DMA_STRICT                 policy<{'amd64': 'n', 'arm64': 'n'}>
+CONFIG_IOMMU_DEFAULT_DMA_STRICT                 note<'LP: #2071471 LP: #2126453, Google Grace'>
+
 CONFIG_KERNEL_ZSTD                              policy<{'amd64': 'y', 'arm64': 'n'}>
 CONFIG_KERNEL_ZSTD                              note<'LP: #1931725'>
 
-- 
2.43.0