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efi_loader: Add network access support

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We can now successfully boot EFI applications from disk, but users
may want to also run them from a PXE setup.

This patch implements rudimentary network support, allowing a payload
to send and receive network packets.

With this patch, I was able to successfully run grub2 with network
access inside of QEMU's -M xlnx-ep108.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf
2016-05-06 21:01:01 +02:00
committed by Tom Rini
parent 7e6621a1ca
commit 0efe1bcf5c
9 changed files with 432 additions and 3 deletions
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7
cmd/bootefi.c
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@@ -197,6 +197,13 @@ static unsigned long do_bootefi_exec(void *efi, void *fdt)
#ifdef CONFIG_LCD
efi_gop_register();
#endif
#ifdef CONFIG_NET
void *nethandle = loaded_image_info.device_handle;
efi_net_register(&nethandle);
if (!memcmp(bootefi_device_path[0].str, "N\0e\0t", 6))
loaded_image_info.device_handle = nethandle;
#endif
/* Call our payload! */
#ifdef DEBUG_EFI