[coreboot-gerrit] New patch to review for coreboot: x86: acpi: Use GOOG ID for coreboot table

Duncan Laurie (dlaurie@chromium.org) gerrit at coreboot.org
Thu Sep 22 23:12:14 CEST 2016


Duncan Laurie (dlaurie at chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16724

-gerrit

commit ab58af1ee1b434b9910148644c7440644b0cb56e
Author: Duncan Laurie <dlaurie at chromium.org>
Date:   Thu Sep 22 14:08:33 2016 -0700

    x86: acpi: Use GOOG ID for coreboot table
    
    Use the GOOG ACPI ID until there is an official ID allocation
    for coreboot.  Since I administer this range I allocated
    0xCB00-0xCBFF for coreboot use.
    
    Change-Id: I38ac0a0267e21f7282c89ef19e8bb72339f13846
    Signed-off-by: Duncan Laurie <dlaurie at chromium.org>
---
 src/arch/x86/acpigen.c           | 2 +-
 src/arch/x86/include/arch/acpi.h | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index c55611b..2d626ab 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -224,7 +224,7 @@ void acpigen_write_coreboot_hid(enum coreboot_acpi_ids id)
 {
 	char hid[9]; /* CORExxxx */
 
-	snprintf(hid, sizeof(hid), "%.4s%04u", COREBOOT_ACPI_ID, id);
+	snprintf(hid, sizeof(hid), "%.4s%04X", COREBOOT_ACPI_ID, id);
 	acpigen_write_name_string("_HID", hid);
 }
 
diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index 7d29931..6a548ba 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -57,11 +57,14 @@
 #define ACPI_TABLE_CREATOR	"COREBOOT"  /* Must be exactly 8 bytes long! */
 #define OEM_ID			"CORE  "    /* Must be exactly 6 bytes long! */
 #define ASLC			"CORE"      /* Must be exactly 4 bytes long! */
-#define COREBOOT_ACPI_ID	"CORE"      /* ACPI ID for coreboot HIDs */
+
+/* Use GOOGCGxx range until coreboot ID is official */
+#define COREBOOT_ACPI_ID	"GOOG"      /* ACPI ID for coreboot HIDs */
 
 /* List of ACPI HID that use the coreboot ACPI ID */
 enum coreboot_acpi_ids {
-	COREBOOT_ACPI_ID_CBTABLE,	/* CORE0000 */
+	COREBOOT_ACPI_ID_CBTABLE = 0xCB00,	/* GOOGCB00 */
+	COREBOOT_ACPI_ID_MAX     = 0xCBFF,	/* GOOGCBFF */
 };
 
 /* RSDP (Root System Description Pointer) */



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