Date: Fri, 14 Jul 2023 22:21:04 +0200 From: Heinrich Schuchardt xypron.glpk@gmx.de
Hi Heinrich,
Am 14. Juli 2023 21:56:02 MESZ schrieb Mark Kettenis kettenis@openbsd.org:
Enable the bootflow based on this bootmeth if the BootOrder EFI variable is set.
Signed-off-by: Mark Kettenis kettenis@openbsd.org
boot/bootmeth_efi_mgr.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/boot/bootmeth_efi_mgr.c b/boot/bootmeth_efi_mgr.c index e9d973429f..db650861ff 100644 --- a/boot/bootmeth_efi_mgr.c +++ b/boot/bootmeth_efi_mgr.c @@ -14,6 +14,8 @@ #include <bootmeth.h> #include <command.h> #include <dm.h> +#include <efi_loader.h> +#include <efi_variable.h>
/**
- struct efi_mgr_priv - private info for the efi-mgr driver
@@ -46,13 +48,21 @@ static int efi_mgr_check(struct udevice *dev, struct bootflow_iter *iter) static int efi_mgr_read_bootflow(struct udevice *dev, struct bootflow *bflow) { struct efi_mgr_priv *priv = dev_get_priv(dev);
efi_uintn_t size;
u16 *bootorder;
if (priv->fake_dev) { bflow->state = BOOTFLOWST_READY; return 0; }
- /* To be implemented */
- /* Enable this method if the "BootOrder" UEFI exists. */
- bootorder = efi_get_var(u"BootOrder", &efi_global_variable_guid,
&size);Are EFI variables already loaded when you hit this code?
They are in my case since I have some board code initializes the EFI subsystem early. But in general it would not. So I guess this would need a call to efi_init_obj_list().
Even if the variable Boot Order is not set we must boot EFI/BOOT/BOOT????.EFI.
That will still happen. If the efi_mgr method fails, standard boot will iterate over devices and use the efi method to boot from the default path.
if (bootorder) {
bflow->state = BOOTFLOWST_READY;return 0;}
return -EINVAL;
}