2 files changed, 37 insertions, 1 deletions
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;
+}