Commit 712cd298 authored by Alexander Graf's avatar Alexander Graf
Browse files

efi_loader: Allow bouncing for network

So far bounce buffers were only used for disk I/O, but network I/O
may suffer from the same problem.

On platforms that have problems doing DMA on high addresses, let's
also bounce outgoing network packets. Incoming ones always already
get bounced.

This patch fixes EFI PXE boot on ZynqMP for me.
Signed-off-by: default avatarAlexander Graf <>
parent b6575f34
......@@ -152,7 +152,14 @@ static efi_status_t EFIAPI efi_net_transmit(struct efi_simple_network *this,
/* Ethernet packets always fit, just bounce */
memcpy(efi_bounce_buffer, buffer, buffer_size);
net_send_packet(efi_bounce_buffer, buffer_size);
net_send_packet(buffer, buffer_size);
new_tx_packet = buffer;
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment