mirror of https://github.com/ipxe/ipxe.git
081b3eefc4
Some BIOSes in AWS EC2 (observed with a c6i.metal instance in eu-west-2) will fail to assign an MMIO address to the ENA device, which causes ioremap() to fail. Experiments show that the ENA device is the only device behind its bridge, even when multiple ENA devices are present, and that the BIOS does assign a memory window to the bridge. We may therefore choose to assign the device an MMIO address at the start of the bridge's memory window. Signed-off-by: Michael Brown <mcb30@ipxe.org> |
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