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-rw-r--r--sys/arch/amd64/conf/GENERIC13
-rw-r--r--sys/arch/amd64/conf/link.ld6
2 files changed, 16 insertions, 3 deletions
diff --git a/sys/arch/amd64/conf/GENERIC b/sys/arch/amd64/conf/GENERIC
index db3ce4c..7a28038 100644
--- a/sys/arch/amd64/conf/GENERIC
+++ b/sys/arch/amd64/conf/GENERIC
@@ -1,9 +1,16 @@
+//
// Kernel options
-option SPECTRE_IBRS no
-option SERIAL_DEBUG yes
+//
+// XXX: Indirect branch restricted speculation (SPECTRE_IBRS)
+// is disabled by default as it can lead to significant
+// performance degradation.
+//
+option SPECTRE_IBRS no // Enable the IBRS CPU feature
+option SERIAL_DEBUG yes // Enable kmsg serial logging
+option USER_KMSG no // Show kmsg in user consoles
// Kernel constants
-setval SCHED_NQUEUE 4
+setval SCHED_NQUEUE 4 // Number of scheduler queues (for MLFQ)
// Console attributes
setval CONSOLE_BG 0x000000
diff --git a/sys/arch/amd64/conf/link.ld b/sys/arch/amd64/conf/link.ld
index 9c47a81..a43824f 100644
--- a/sys/arch/amd64/conf/link.ld
+++ b/sys/arch/amd64/conf/link.ld
@@ -29,6 +29,12 @@ SECTIONS
__drivers_init_end = .;
} :rodata
+ .drivers.defer : {
+ __driversd_init_start = .;
+ *(.drivers.defer .drivers.defer)
+ __driversd_init_end = .;
+ } :rodata
+
. += CONSTANT(MAXPAGESIZE);
.data : {