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-rw-r--r--sys/amd64/conf/GENERIC1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC
index 3b48f0f..6b3f648 100644
--- a/sys/amd64/conf/GENERIC
+++ b/sys/amd64/conf/GENERIC
@@ -85,6 +85,7 @@ device cpufreq
# Bus support.
device acpi
+options ACPI_DMAR
device pci
# Floppy drives
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