[PATCH v4 31/34] efi: Allow easy selection of serial-only operation

Simon Glass
2021-11-04T03:13:58Z

Add info about how to select vidconsole or serial.

Also set up a demo boot command.

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

(no changes since v2)

Changes in v2:
- Add a better boot command too

include/configs/efi-x86_app.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/include/configs/efi-x86_app.h b/include/configs/efi-x86_app.h
index 6061a6db0a4..33afb7ca0f9 100644
--- a/include/configs/efi-x86_app.h
+++ b/include/configs/efi-x86_app.h
@@ -10,8 +10,33 @@

#undef CONFIG_TPM_TIS_BASE_ADDRESS

+/*
+ * Select the output device: Put an 'x' prefix before one of these to disable it
+ */
+
+/*
+ * Video output - can normally continue after exit_boot_services has been
+ * called, since output to the display does not require EFI services at that
+ * point. U-Boot sets up the console memory and does its own drawing.
+ */
#define CONFIG_STD_DEVICES_SETTINGS "stdin=serial\0" \
"stdout=vidconsole\0" \
"stderr=vidconsole\0"

+/*
+ * Serial output with no console. Run qemu with:
+ *
+ * -display none -serial mon:stdio
+ *
+ * This will hang or fail to output on the console after exit_boot_services is
+ * called.
+ */
+#define xCONFIG_STD_DEVICES_SETTINGS "stdin=serial\0" \
+ "stdout=serial\0" \
+ "stderr=serial\0"
+
+#undef CONFIG_BOOTCOMMAND
+
+#define CONFIG_BOOTCOMMAND "part list efi 0; fatls efi 0:1"
+
#endif
--
2.34.0.rc0.344.g81b53c2807-goog