qemu/docs
Bin Meng 143897b501 hw/riscv: microchip_pfsoc: Support direct kernel boot
At present the Microchip Icicle Kit machine only supports using
'-bios' to load the HSS, and does not support '-kernel' for direct
kernel booting just like other RISC-V machines do. One has to use
U-Boot which is chain-loaded by HSS, to load a kernel for testing.
This is not so convenient.

Adding '-kernel' support together with the existing '-bios', we
follow the following table to select which payload we execute:

  -bios |    -kernel | payload
  ------+------------+--------
      N |          N | HSS
      Y | don't care | HSS
      N |          Y | kernel

This ensures backwards compatibility with how we used to expose
'-bios' to users. When '-kernel' is used for direct boot, '-dtb'
must be present to provide a valid device tree for the board,
as we don't generate device tree.

When direct kernel boot is used, the OpenSBI fw_dynamic BIOS image
is used to boot a payload like U-Boot or OS kernel directly.

Documentation is updated to describe the direct kernel boot. Note
as of today there is still no PolarFire SoC support in the upstream
Linux kernel hence the document does not include instructions for
that. It will be updated in the future.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210430071302.1489082-8-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-06-08 09:59:42 +10:00
..
config docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
devel -----BEGIN PGP SIGNATURE----- 2021-06-04 13:38:49 +01:00
interop sphinx: adopt kernel readthedoc theme 2021-05-14 15:05:03 +04:00
specs sphinx: adopt kernel readthedoc theme 2021-05-14 15:05:03 +04:00
sphinx qapi/error: Repurpose QAPIError as an abstract base exception class 2021-04-30 12:59:54 +02:00
sphinx-static sphinx: adopt kernel readthedoc theme 2021-05-14 15:05:03 +04:00
spin docs: create config/, devel/ and spin/ subdirectories 2017-06-07 18:22:03 +02:00
system hw/riscv: microchip_pfsoc: Support direct kernel boot 2021-06-08 09:59:42 +10:00
tools Block patches: 2021-05-17 11:29:59 +01:00
user sphinx: adopt kernel readthedoc theme 2021-05-14 15:05:03 +04:00
COLO-FT.txt docs: update to show preferred boolean syntax for -cpu 2021-02-25 14:14:33 +01:00
amd-memory-encryption.txt confidential guest support: Update documentation 2021-02-08 16:57:38 +11:00
barrier.txt ui: add an embedded Barrier client 2019-09-17 13:43:22 +02:00
block-replication.txt colo: Update Documentation for continuous replication 2020-03-03 18:04:47 +08:00
bootindex.txt docs qemu-doc: Avoid ide-drive, it's deprecated 2017-06-04 18:42:55 +03:00
can.txt docs: Fix some typos (found by codespell) 2020-11-18 09:29:41 +01:00
ccid.txt docs: update to show preferred boolean syntax for -chardev 2021-02-25 14:14:33 +01:00
colo-proxy.txt docs: update to show preferred boolean syntax for -chardev 2021-02-25 14:14:33 +01:00
conf.py docs: Fix installation of man pages with Sphinx 4.x 2021-06-03 16:43:25 +01:00
confidential-guest-support.txt s390: Recognize confidential-guest-support option 2021-02-08 16:57:38 +11:00
defs.rst.inc docs: Fix typo in the default name of the qemu-system-x86_64 binary 2021-04-01 14:28:39 +02:00
hyperv.txt i386: Make migration fail when Hyper-V reenlightenment was enabled but 'user_tsc_khz' is unset 2021-03-19 08:48:18 -04:00
igd-assign.txt vfio/pci: Add IGD documentation 2016-05-26 11:12:05 -06:00
image-fuzzer.txt docs: List all image elements currently supported by the fuzzer 2014-09-22 11:39:35 +01:00
index.rst docs/index.rst, docs/index.html.in: Reorder manuals 2020-03-12 11:14:06 +00:00
memory-hotplug.txt docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
meson.build sphinx: adopt kernel readthedoc theme 2021-05-14 15:05:03 +04:00
multi-thread-compression.txt Replace '-enable-kvm' with '-accel kvm' in docs and help texts 2018-06-28 19:05:32 +02:00
multiseat.txt tests/docker/test-mingw and docs: Remove --with-sdlabi=2.0 2019-02-04 15:25:21 +00:00
nvdimm.txt nvdimm: check -object memory-backend-file, readonly=on option 2021-02-01 17:07:34 -05:00
papr-pef.txt spapr: Add PEF based confidential guest support 2021-02-08 16:57:38 +11:00
pci_expander_bridge.txt pxb: cleanup 2016-03-11 16:59:12 +02:00
pcie.txt docs: pcie: Spell out machine type needs for PCIe features 2018-03-01 16:25:37 +02:00
pcie_pci_bridge.txt pci: removed the is_express field since a uniform interface was inserted 2018-02-08 21:06:41 +02:00
pvrdma.txt docs: Fix broken links 2020-09-01 09:31:33 +02:00
qcow2-cache.txt qcow2: Document the Extended L2 Entries feature 2020-08-25 08:33:20 +02:00
qdev-device-use.txt hw/ide: remove 'ide-drive' device 2021-03-18 09:22:55 +00:00
qemu-option-trace.rst.inc qemu-option-trace.rst.inc: Don't use option:: markup 2020-11-02 16:52:18 +00:00
qemu_logo.pdf docs: add qemu logo to pdf 2017-01-16 10:11:43 +01:00
qemupciserial.inf docs: Grammar and spelling fixes 2018-07-13 10:16:04 +01:00
rdma.txt migrate: remove QMP/HMP commands for speed, downtime and cache size 2021-03-18 09:22:55 +00:00
replay.txt docs: Fix some typos (found by codespell) 2020-11-18 09:29:41 +01:00
spice-port-fqdn.txt docs: add spice-port-fqdn.txt 2012-12-17 14:01:41 +01:00
throttle.txt docs: Document the throttle block filter 2020-10-02 15:46:40 +02:00
u2f.txt hw/usb: Add U2F device autoscan to passthru mode 2020-08-31 08:23:39 +02:00
usb-storage.txt usb: Fix typo in documentation 2017-01-24 23:26:52 +03:00
usb2.txt docs/usb2.txt: ehci has six ports 2018-08-21 10:22:03 +02:00
virtio-balloon-stats.txt Remove the deprecated -balloon option 2018-08-31 09:52:13 +02:00
xbzrle.txt migrate: remove QMP/HMP commands for speed, downtime and cache size 2021-03-18 09:22:55 +00:00
xen-save-devices-state.txt Fix up dangling references to qmp-commands.* in comment and doc 2018-03-02 13:48:26 -06:00