openwrt/target/linux/malta/README

This Malta target is intended to be used with the Qemu emulator. It can be used
to prototype an OpenWrt firmware for MIPS processors. One could also use it to
troubleshoot MIPS applications without access to real hardware.

To use the images built by OpenWrt with qemu, use the following commands:

For the 32 bit little-endian image:
qemu-system-mipsel -kernel bin/targets/malta/le/openwrt-malta-le-vmlinux-initramfs.elf -nographic -m 256

For the 32 bit big-endian image:
qemu-system-mips -kernel bin/targets/malta/be/openwrt-malta-be-vmlinux-initramfs.elf -nographic -m 256

For the 64 bit little-endian image:
qemu-system-mips64el -kernel bin/targets/malta/le64/openwrt-malta-le64-vmlinux-initramfs.elf -cpu MIPS64R2-generic -nographic -m 256

For the 64 bit big-endian image:
qemu-system-mips64 -kernel bin/targets/malta/be64/openwrt-malta-be64-vmlinux-initramfs.elf -cpu MIPS64R2-generic -nographic -m 256

and enjoy the system bootin.
add a MIPS Malta target to be used with qemu SVN-Revision: 19893 2010-02-28 11:09:34 +00:00			`This Malta target is intended to be used with the Qemu emulator. It can be used`
			`to prototype an OpenWrt firmware for MIPS processors. One could also use it to`
			`troubleshoot MIPS applications without access to real hardware.`

			`To use the images built by OpenWrt with qemu, use the following commands:`

malta: add 64 bit qemu commands to README This shows how to boot up the 64 bit images. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2017-10-15 12:18:40 +00:00			`For the 32 bit little-endian image:`
malta: fix image prefix names Signed-off-by: John Crispin <john@phrozen.org> 2018-01-09 09:22:54 +00:00			`qemu-system-mipsel -kernel bin/targets/malta/le/openwrt-malta-le-vmlinux-initramfs.elf -nographic -m 256`
create two endian-specific subtargets, as malta can run both SVN-Revision: 20790 2010-04-10 21:02:51 +00:00
malta: add 64 bit qemu commands to README This shows how to boot up the 64 bit images. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2017-10-15 12:18:40 +00:00			`For the 32 bit big-endian image:`
malta: fix image prefix names Signed-off-by: John Crispin <john@phrozen.org> 2018-01-09 09:22:54 +00:00			`qemu-system-mips -kernel bin/targets/malta/be/openwrt-malta-be-vmlinux-initramfs.elf -nographic -m 256`
add a MIPS Malta target to be used with qemu SVN-Revision: 19893 2010-02-28 11:09:34 +00:00
malta: add 64 bit qemu commands to README This shows how to boot up the 64 bit images. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2017-10-15 12:18:40 +00:00			`For the 64 bit little-endian image:`
malta: update MIPS64 ISA to R2 Usage of current R1 ISA is inconsistent with the MIPS32 subtarget, little used and has limited utility for testing. Many distros target a minimum R2 ISA. Debian MIPS 32-bit/64-bit ports all use MIPS R2 ISA since Stretch, for example. Fedora's MIPS arch also targets the R2 ISA for 32-bit/64-bit. Widely used MIPS64 platforms like Octeon are based on the MIPS R2 ISA or later, and benefit from having a compatible test platform in OpenWRT. While Linux does support MIPS64 R1 targets, its usefulness for development and testing is limited. As an example, the modern Linux eBPF JIT requires a MIPS R2 ISA or later. Signed-off-by: Tony Ambardar <itugrok@yahoo.com> [Refresh config and fix README] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2020-08-14 05:11:22 +00:00			`qemu-system-mips64el -kernel bin/targets/malta/le64/openwrt-malta-le64-vmlinux-initramfs.elf -cpu MIPS64R2-generic -nographic -m 256`
malta: add 64 bit qemu commands to README This shows how to boot up the 64 bit images. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2017-10-15 12:18:40 +00:00
			`For the 64 bit big-endian image:`
malta: update MIPS64 ISA to R2 Usage of current R1 ISA is inconsistent with the MIPS32 subtarget, little used and has limited utility for testing. Many distros target a minimum R2 ISA. Debian MIPS 32-bit/64-bit ports all use MIPS R2 ISA since Stretch, for example. Fedora's MIPS arch also targets the R2 ISA for 32-bit/64-bit. Widely used MIPS64 platforms like Octeon are based on the MIPS R2 ISA or later, and benefit from having a compatible test platform in OpenWRT. While Linux does support MIPS64 R1 targets, its usefulness for development and testing is limited. As an example, the modern Linux eBPF JIT requires a MIPS R2 ISA or later. Signed-off-by: Tony Ambardar <itugrok@yahoo.com> [Refresh config and fix README] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2020-08-14 05:11:22 +00:00			`qemu-system-mips64 -kernel bin/targets/malta/be64/openwrt-malta-be64-vmlinux-initramfs.elf -cpu MIPS64R2-generic -nographic -m 256`
malta: add 64 bit qemu commands to README This shows how to boot up the 64 bit images. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> 2017-10-15 12:18:40 +00:00
add a MIPS Malta target to be used with qemu SVN-Revision: 19893 2010-02-28 11:09:34 +00:00			`and enjoy the system bootin.`