diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h index d8a15d1f5c..5340549404 100644 --- a/src/include/boot/coreboot_tables.h +++ b/src/include/boot/coreboot_tables.h @@ -221,6 +221,7 @@ 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; @@ -229,6 +230,8 @@ 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 879bd4b76d..1507b15d3e 100644 --- a/src/lib/coreboot_table.c +++ b/src/lib/coreboot_table.c @@ -613,6 +613,10 @@ 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 37016e7e63..f65911f012 100644 --- a/src/vendorcode/google/chromeos/Kconfig +++ b/src/vendorcode/google/chromeos/Kconfig @@ -68,6 +68,11 @@ 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 e0f851c345..566770df7c 100644 --- a/src/vendorcode/google/chromeos/ramoops.c +++ b/src/vendorcode/google/chromeos/ramoops.c @@ -20,6 +20,7 @@ #include #include +#include #include #include #include @@ -99,4 +100,37 @@ void chromeos_ram_oops_init(chromeos_acpi_t *chromeos) reserve_ram_oops_dynamic(chromeos); } +#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_ENTRIES(bscb_ramoops) = { + 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; +}