diff mbox series

[v4,20/59] x86: Add some definitions for SMM

Message ID 20200922124521.v4.20.Ie0798fbf2b61afd6f2011e8b5f58cba679834675@changeid
State Accepted
Commit 59561c7c2e07aba2a1bca1a1f21e49d69c6af53c
Delegated to: Bin Meng
Headers show
Series dm: Add programatic generation of ACPI tables (part D) | expand

Commit Message

Simon Glass Sept. 22, 2020, 6:45 p.m. UTC
U-Boot does not support SMM (System Management Mode) at present, but needs
a few definitions to correctly set up the ACPI table. Add these.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

(no changes since v1)

 arch/x86/include/asm/smm.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 arch/x86/include/asm/smm.h
diff mbox series

Patch

diff --git a/arch/x86/include/asm/smm.h b/arch/x86/include/asm/smm.h
new file mode 100644
index 00000000000..1e539fda067
--- /dev/null
+++ b/arch/x86/include/asm/smm.h
@@ -0,0 +1,27 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * SMM definitions (U-Boot does not support SMM itself)
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright 2019 Google LLC
+ *
+ * Modified from coreboot smm.h
+ */
+
+#ifndef _ASM_SMM_H
+#define _ASM_SMM_H
+
+#define APM_CNT			0xb2
+#define APM_CNT_CST_CONTROL	0x85
+#define APM_CNT_PST_CONTROL	0x80
+#define APM_CNT_ACPI_DISABLE	0x1e
+#define APM_CNT_ACPI_ENABLE	0xe1
+#define APM_CNT_MBI_UPDATE	0xeb
+#define APM_CNT_GNVS_UPDATE	0xea
+#define APM_CNT_FINALIZE	0xcb
+#define APM_CNT_LEGACY		0xcc
+#define APM_CNT_SMMSTORE	0xed
+#define APM_CNT_ELOG_GSMI	0xef
+#define APM_STS			0xb3
+
+#endif /* _ASM_SMM_H */