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[v4,40/59] x86: fsp: Update the FSP API with the end-firmware method

Message ID 20200922124521.v4.40.Ie333ce385111e0f6aff34920acf69bd06f1d053a@changeid
State Accepted
Commit c90b302d5f824a494905324a0abf6e69b7dc49f0
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
This new method is intended to be called when UEFI shuts down the 'boot
services', i.e. any lingering code in the boot loader that might be used
by the OS.

Add a definition for this new method and update the comments a little.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
---

(no changes since v1)

 arch/x86/include/asm/fsp/fsp_api.h | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)
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Patch

diff --git a/arch/x86/include/asm/fsp/fsp_api.h b/arch/x86/include/asm/fsp/fsp_api.h
index 4941e2d74f0..3a9b61903c0 100644
--- a/arch/x86/include/asm/fsp/fsp_api.h
+++ b/arch/x86/include/asm/fsp/fsp_api.h
@@ -10,9 +10,18 @@ 
 
 enum fsp_phase {
 	/* Notification code for post PCI enuermation */
-	INIT_PHASE_PCI	= 0x20,
-	/* Notification code before transferring control to the payload */
-	INIT_PHASE_BOOT	= 0x40
+	INIT_PHASE_PCI		= 0x20,
+	/*
+	 * Notification code before transferring control to the payload.
+	 * This is issued at the end of init before starting main(), i.e.
+	 * the command line / boot script.
+	 */
+	INIT_PHASE_BOOT		= 0x40,
+	/*
+	 * Notification code before existing boot services. This is issued
+	 * just before removing devices and booting the kernel.
+	 */
+	INIT_PHASE_END_FIRMWARE	= 0xf0,
 };
 
 struct fsp_notify_params {