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-rw-r--r--src/include/boot/coreboot_tables.h3
-rw-r--r--src/lib/coreboot_table.c4
-rw-r--r--src/vendorcode/google/chromeos/Kconfig5
-rw-r--r--src/vendorcode/google/chromeos/ramoops.c33
4 files changed, 44 insertions, 1 deletions
diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h
index 56394733ce..a3cf2bd761 100644
--- a/src/include/boot/coreboot_tables.h
+++ b/src/include/boot/coreboot_tables.h
@@ -227,6 +227,7 @@ struct lb_gpios {
#define LB_TAG_VBNV 0x0019
#define LB_TAB_VBOOT_HANDOFF 0x0020
#define LB_TAB_DMA 0x0022
+#define LB_TAG_RAM_OOPS 0x0023
struct lb_range {
uint32_t tag;
uint32_t size;
@@ -235,6 +236,8 @@ struct lb_range {
uint32_t range_size;
};
+void lb_ramoops(struct lb_header *header);
+
#define LB_TAG_TIMESTAMPS 0x0016
#define LB_TAG_CBMEM_CONSOLE 0x0017
#define LB_TAG_MRC_CACHE 0x0018
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c
index 332bed172a..afb6743876 100644
--- a/src/lib/coreboot_table.c
+++ b/src/lib/coreboot_table.c
@@ -473,6 +473,10 @@ unsigned long write_coreboot_table(
/* Add board-specific table entries, if any. */
lb_board(head);
+#if IS_ENABLED(CONFIG_CHROMEOS_RAMOOPS)
+ lb_ramoops(head);
+#endif
+
/* Remember where my valid memory ranges are */
return lb_table_fini(head);
}
diff --git a/src/vendorcode/google/chromeos/Kconfig b/src/vendorcode/google/chromeos/Kconfig
index a0ab55d596..29252a66b3 100644
--- a/src/vendorcode/google/chromeos/Kconfig
+++ b/src/vendorcode/google/chromeos/Kconfig
@@ -76,6 +76,11 @@ config CHROMEOS_RAMOOPS_DYNAMIC
default n
depends on CHROMEOS_RAMOOPS && HAVE_ACPI_TABLES
+config CHROMEOS_RAMOOPS_NON_ACPI
+ bool "Allocate RAM oops buffer in cbmem passed through cb tables to payload"
+ default n
+ depends on CHROMEOS_RAMOOPS && !HAVE_ACPI_TABLES
+
config CHROMEOS_RAMOOPS_RAM_START
hex "Physical address of preserved RAM"
default 0x00f00000
diff --git a/src/vendorcode/google/chromeos/ramoops.c b/src/vendorcode/google/chromeos/ramoops.c
index f7177e5397..07649c975c 100644
--- a/src/vendorcode/google/chromeos/ramoops.c
+++ b/src/vendorcode/google/chromeos/ramoops.c
@@ -20,6 +20,7 @@
#include <stddef.h>
#include <stdint.h>
+#include <boot/coreboot_tables.h>
#include <bootstate.h>
#include <console/console.h>
#include <cbmem.h>
@@ -99,4 +100,34 @@ void chromeos_ram_oops_init(chromeos_acpi_t *chromeos)
reserve_ram_oops_dynamic(chromeos);
}
-#endif /* CONFIG_HAVE_ACPI_TABLES */
+#elif IS_ENABLED(CONFIG_CHROMEOS_RAMOOPS_NON_ACPI)
+
+static void ramoops_alloc(void *arg)
+{
+ const size_t size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE;
+
+ if (size == 0)
+ return;
+
+ if (cbmem_add(CBMEM_ID_RAM_OOPS, size) == NULL)
+ printk(BIOS_ERR, "Could not allocate RAMOOPS buffer\n");
+}
+
+BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, ramoops_alloc, NULL);
+
+#endif
+
+void lb_ramoops(struct lb_header *header)
+{
+ void *buffer = cbmem_find(CBMEM_ID_RAM_OOPS);
+
+ if (buffer == NULL)
+ return;
+
+ struct lb_range *ramoops;
+ ramoops = (struct lb_range *)lb_new_record(header);
+ ramoops->tag = LB_TAG_RAM_OOPS;
+ ramoops->size = sizeof(*ramoops);
+ ramoops->range_start = (uintptr_t)buffer;
+ ramoops->range_size = CONFIG_CHROMEOS_RAMOOPS_RAM_SIZE;
+}