Hello Michael, I have some questions concerning the compilation flags used by iPXE on ARM.
There are a lot of different ARM CPUs available. Why do we set -mcpu=cortex-a15? This would for instance exclude i.mx6 CPUs which are Cortex-A9. The Allwinner A20 I am currently testing on is Cortex-A7. All aforementioned CPUs have an FPU. So why use -mfloat=soft? Couldn't we use something like -march=armv7-a -mfpu=vfpv3-d16 -mfloat=hard instead? This is what Debian requires for armhf. The following differences exist HVC (hypervisor call) assembler instruction is not available on Cortex-A7, Cortex-A9. This concerns arch/arm/include/bits/xen.h which is included by drivers/net/netfront.c and some tests. But the netfront driver is irrelevant for snp.efi. Fused multiply and add is not available on the Cortex-A9 FPU. Best regards Heinrich _______________________________________________ ipxe-devel mailing list ipxe-devel@lists.ipxe.org https://lists.ipxe.org/mailman/listinfo.cgi/ipxe-devel