openslx-ng/ipxe.git/src/arch/riscv/interface, branch openslxFork of ipxe; additional commands and featureshttps://git.openslx.org/openslx-ng/ipxe.git/atom/src/arch/riscv/interface?h=openslx2025-06-23T14:07:07+00:00[riscv] Inhibit SBI console when a serial console is active2025-06-23T14:07:07+00:00Michael Brown2025-06-23T14:07:07+00:00urn:sha1:d1823eb67740ce46ebc08226484447bfd463fe2c
When a native serial driver is enabled for the system console device
specified via "/chosen/stdout-path", it is very likely that this will
correspond to the same physical serial port used for the SBI debug
console.
Inhibit input and output via the SBI console whenever a serial console
is active, to avoid duplicated output characters and unpredictable
input behaviour.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Write SBI console output to early UART, if enabled2025-06-12T11:57:26+00:00Michael Brown2025-06-12T11:57:26+00:00urn:sha1:5783a10f721d8f10d535dd2f69a9382c5ef7be7b
The early UART is an optional feature used to obtain debug output from
the prefix before iPXE is able to parse the device tree.
Extend this feature to also cover any console output that iPXE
attempts to send to the SBI console, on the basis that the purpose of
the early UART is to provide an output-only device for situations in
which there is no functional SBI console.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Support older SBI implementations2025-05-25T09:43:39+00:00Michael Brown2025-05-25T08:28:11+00:00urn:sha1:8d88870da59e93202d1cff4504f2fd2d2fa139cd
Fall back to attempting the legacy SBI console and shutdown calls if
the standard calls fail.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Use generic external heap based on the system memory map2025-05-19T18:36:25+00:00Michael Brown2025-05-19T15:16:33+00:00urn:sha1:140ceeeb089f605e29592697239a28bb4db1a7e2
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[reboot] Generalise warm reboot indicator to a flags bitmask2025-04-28T12:44:53+00:00Michael Brown2025-04-28T12:42:32+00:00urn:sha1:7eaa2daf6f978c6aa16f66e03aa42dd3b5a190ae
Allow for the possibility of additional reboot types by extending the
reboot() function to use a flags bitmask rather than a single flag.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[umalloc] Remove userptr_t from user memory allocations2025-04-23T13:43:04+00:00Michael Brown2025-04-23T11:47:53+00:00urn:sha1:839540cb95a310ebf96d6302afecc3ac97ccf746
Use standard void pointers for umalloc(), urealloc(), and ufree(),
with the "u" prefix retained to indicate that these allocations are
made from external ("user") memory rather than from the internal heap.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Map DEL to backspace on the SBI debug console2025-04-19T11:20:59+00:00Michael Brown2025-04-19T11:18:53+00:00urn:sha1:423cdbeb398ec82e8457bec111deac1465d2a107
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[sbi] Add support for running as a RISC-V SBI payload2024-10-28T19:20:50+00:00Michael Brown2024-10-28T14:40:35+00:00urn:sha1:e0e102ee24bdab68b0318b505402f60cfb88a5f0
Add basic support for running directly on top of SBI, with no UEFI
firmware present. Build as e.g.:
make CROSS=riscv64-linux-gnu- bin-riscv64/ipxe.sbi
The resulting binary can be tested in QEMU using e.g.:
qemu-system-riscv64 -M virt -cpu max -serial stdio \
-kernel bin-riscv64/ipxe.sbi
No drivers or executable binary formats are supported yet, but the
unit test suite may be run successfully.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Add support for reboot and power off via SBI2024-10-22T14:13:59+00:00Michael Brown2024-10-22T14:13:59+00:00urn:sha1:21940425c4b50e2b8f0a2ccf1db2c86873c28462
Signed-off-by: Michael Brown <mcb30@ipxe.org>
[riscv] Add support for the SBI debug console2024-10-22T11:51:48+00:00Michael Brown2024-10-22T11:51:48+00:00urn:sha1:b23204b383cdea4ad64276991b55d8019fee3265
Add the ability to issue Supervisor Binary Interface (SBI) calls via
the ECALL instruction, and use the SBI DBCN extension to implement a
debug console.
Signed-off-by: Michael Brown <mcb30@ipxe.org>