Add RISC-V 64-bit nommu defconfig for QEMU virt machine with MMU
disabled.
Unlike qemu_riscv64_virt, qemu_riscv64_nommu_virt does not use OpenSBI,
since the kernel is running in machine mode (M-mode).
After the build is complete, you can start QEMU using the launcher
script:
$ output/images/start-qemu.sh
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Since 52f188140c (qemu version bump to 5.1),
the image generated by qemu_riscv64_virt_defconfig doesn't boot anyore with
the following error:
rom: requested regions overlap (rom phdr #0: [...]/images//fw_jump.elf. free=0x000000008000e240, addr=0x0000000080000000)
qemu-system-riscv64: rom check and register reset failed
Update the qemu command line as described in the Qemu wiki for riscv64 [1]
Fixes:
https://gitlab.com/jugurthaB/buildroot/-/jobs/686104707
[1] https://wiki.qemu.org/Documentation/Platforms/RISCV#Booting_64-bit_OpenEmbedded_Images
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Jugurtha BELKALEM <jugurtha.belkalem@smile.fr>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Mark Corbin <mark@dibsco.co.uk>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The Qemu version present in readme.txt files was needed when
the Buildroot's Qemu defconfig was tested manually using the
qemu-system-<arch> binary already present on the host.
This information is now incorrect since we are using host-qemu
package, currently at 4.2.0 version, to do a runtime test since
0c79350638.
For m68k-q800, we can use the upstream qemu since 4.2.0 release
[1].
So, remove this line from the readme.txt.
[1] https://www.qemu.org/2019/12/13/qemu-4-2-0/
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit add the name of the Qemu defconfig file after each
qemu command line in order to retrieve it easily.
Since a readme.txt can be shared between several Qemu defconfig, we
need at least one qemu command line in readme.txt for each defconfig.
For now, ignore the qemu_arm_vexpress_tz_defconfig since it fail to build
due to python script issue [1]. Anyway the arm vexpress boot is tested
with qemu_arm_vexpress_defconfig.
[1] http://lists.busybox.net/pipermail/buildroot/2020-February/273738.html
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
On my machine, it happens once in a while that the virtualised machine
boots too fast for the rootfs to be available at the time the kernel
tries to mount it.
For example, board/qemu/arm-vexpress/readme.txt suggested changing
"-smp 1" up to "-smp 4". But doing so here causes a kernel panic:
VFS: Cannot open root device "mmcblk0" or unknown-block(0,0): error -6
Please append a correct "root=" boot option; here are the available partitions:
1f00 131072 mtdblock0
(driver?)
1f01 32768 mtdblock1
(driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
So, add the oh-so-useful 'rootwait' option to all kernel command lines
for qemu defconfigs.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Mark Corbin <mark.corbin@embecosm.com>
Cc: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Use OpenSBI by default instead of riscv-pk (BBL).
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Since riscv64 works with linux default defconfig, this patch drop custom config.
Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Tested-by: Mark Corbin <mark.corbin@embecosm.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Add RISC-V 64-bit defconfig for QEMU virt machine.
Tested with QEMU 2.12.1
Signed-off-by: Mark Corbin <mark.corbin@embecosm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
