x86: coreboot: Show unimplemented sysinfo tags
Sometimes coreboot adds new tags that U-Boot does not know about. These
are silently ignored, but it is useful to at least know what we are
missing.
Add a way to collect this information. For Brya it shows:
Unimpl. 38 41 37 34 42 40
These are:
LB_TAG_PLATFORM_BLOB_VERSION
LB_TAG_ACPI_CNVS
LB_TAG_FMAP
LB_TAG_VBOOT_WORKBUF
LB_TAG_TYPE_C_INFO
LB_TAG_BOARD_CONFIG
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/include/asm/cb_sysinfo.h b/arch/x86/include/asm/cb_sysinfo.h
index 6b26614..2c78b22 100644
--- a/arch/x86/include/asm/cb_sysinfo.h
+++ b/arch/x86/include/asm/cb_sysinfo.h
@@ -16,6 +16,8 @@
#define SYSINFO_MAX_GPIOS 8
/* Up to 10 MAC addresses */
#define SYSINFO_MAX_MACS 10
+/* Track the first 32 unimplemented tags */
+#define SYSINFO_MAX_UNIMPL 32
/**
* struct sysinfo_t - Information passed to U-Boot from coreboot
@@ -134,6 +136,8 @@
* @chromeos_vpd: Chromium OS Vital Product Data region, typically NULL, meaning
* not used
* @rsdp: Pointer to ACPI RSDP table
+ * @unimpl_count: Number of entries in unimpl_map[]
+ * @unimpl: List of unimplemented IDs (bottom 8 bits only)
*/
struct sysinfo_t {
unsigned int cpu_khz;
@@ -213,6 +217,8 @@
u32 mtc_size;
void *chromeos_vpd;
void *rsdp;
+ u32 unimpl_count;
+ u8 unimpl[SYSINFO_MAX_UNIMPL];
};
extern struct sysinfo_t lib_sysinfo;