Since commit ef63100648 ("hw/riscv: opentitan: Update to the latest build")
the IBEX PLIC model was replaced with the SiFive PLIC model in the
'opentitan' machine but we forgot the add the dependency there.
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221211030829.802437-3-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
hw/pci/Kconfig says MSI_NONBROKEN should be selected by interrupt
controllers regardless of how MSI is implemented. msi_nonbroken is
initialized to true in sifive_plic_realize().
Let SIFIVE_PLIC select MSI_NONBROKEN and drop the selection from
RISC-V machines.
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Message-Id: <20221211030829.802437-1-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The system controller on PolarFire SoC is access via a mailbox. The
control registers for this mailbox lie in the "IOSCB" region & the
interrupt is cleared via write to the "SYSREG" region. It also has a
QSPI controller, usually connected to a flash chip, that is used for
storing FPGA bitstreams and used for In-Application Programming (IAP).
Linux has an implementation of the system controller, through which the
hwrng is accessed, leading to load/store access faults.
Add the QSPI as unimplemented and a very basic (effectively
unimplemented) version of the system controller's mailbox. Rather than
purely marking the regions as unimplemented, service the mailbox
requests by reporting failures and raising the interrupt so a guest can
better handle the lack of support.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221117225518.4102575-4-conor@kernel.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The Fabric Interconnect Controllers provide interfaces between the FPGA
fabric and the core complex. There are 5 FICs on PolarFire SoC, numbered
0 through 4. FIC2 is an AXI4 slave interface from the FPGA fabric and
does not show up on the MSS memory map. FIC4 is dedicated to the User
Crypto Processor and does not show up on the MSS memory map either.
FIC 0, 1 & 3 do show up in the MSS memory map and neither FICs 0 or 1
are represented in QEMU, leading to load access violations while booting
Linux for Icicle if PCIe is enabled as the root port is connected via
either FIC 0 or 1.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Message-Id: <20221117225518.4102575-3-conor@kernel.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The imsic DT binding[1] has changed and no longer require an ipi-id.
The latest IMSIC driver dynamically allocates ipi id if slow-ipi
is not defined.
Get rid of the unused dt property which may lead to confusion.
[1] https://lore.kernel.org/lkml/20221111044207.1478350-5-apatel@ventanamicro.com/
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221122080529.1692533-1-atishp@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Adds the updated `aon_timer` base as an unimplemented device. This is
used by TockOS, patch ensures the guest doesn't hit load faults.
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221025043335.339815-3-wilfred.mallawa@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This patch updates the OpenTitan model to match
the specified register layout as per [1]. Which is also the latest
commit of OpenTitan supported by TockOS.
Note: Pinmux and Padctrl has been merged into Pinmux [2][3], this patch removes
any references to Padctrl. Note: OpenTitan doc [2] has not yet specified
much detail regarding this, except for a note that states `TODO: this
section needs to be updated to reflect the pinmux/padctrl merger`
[1] d072ac505f/hw/top_earlgrey/sw/autogen/top_earlgrey_memory.h
[2] https://docs.opentitan.org/hw/top_earlgrey/doc/design/
[3] https://docs.opentitan.org/hw/ip/pinmux/doc/#overview
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20221025043335.339815-2-wilfred.mallawa@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
When the system reboots, the rng-seed that the FDT has should be
re-randomized, so that the new boot gets a new seed. Since the FDT is in
the ROM region at this point, we add a hook right after the ROM has been
added, so that we have a pointer to that copy of the FDT.
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: qemu-riscv@nongnu.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20221025004327.568476-6-Jason@zx2c4.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This will enable support for the 'dumpdtb' QMP/HMP command for the spike
machine.
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220926173855.1159396-16-danielhb413@gmail.com>
This will enable support for 'dumpdtb' QMP/HMP command for the sifive_u
machine.
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20220926173855.1159396-15-danielhb413@gmail.com>
To boot S-mode firmware payload like EDK2 from persistent
flash storage, qemu needs to pass the flash address as the
next_addr in fw_dynamic_info to the opensbi.
When both -kernel and -pflash options are provided in command line,
the kernel (and initrd if -initrd) will be copied to fw_cfg table.
The S-mode FW will load the kernel/initrd from fw_cfg table.
If only pflash is given but not -kernel, then it is the job of
of the S-mode firmware to locate and load the kernel.
In either case, update the kernel_entry with the flash address
so that the opensbi can jump to the entry point of the S-mode
firmware.
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221004092351.18209-4-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
To enable both -kernel and -pflash options, the fw_cfg needs to be
created prior to loading the kernel.
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221004092351.18209-3-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Since commit 4211fc5532 ("roms/opensbi: Remove ELF images"), the
comment for qtest check in riscv_find_firmware() is out of date.
Update it to reflect the latest status.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <BN7PR08MB435525C92550BAC5467BE672BF219@BN7PR08MB4355.namprd08.prod.outlook.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
On the OpenTitan hardware the resetvec is fixed at the start of ROM. In
QEMU we don't run the ROM code and instead just jump to the next stage.
This means we need to be a little more flexible about what the resetvec
is.
This patch allows us to set the resetvec from the command line with
something like this:
-global driver=riscv.lowrisc.ibex.soc,property=resetvec,value=0x20000400
This way as the next stage changes we can update the resetvec.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220914101108.82571-4-alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The resetvec for the OpenTitan machine ended up being set to an out of
date value, so let's fix that and bump it to the correct start address
(after the boot ROM)
Fixes: bf8803c64d "hw/riscv: opentitan: bump opentitan version"
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220914101108.82571-3-alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Qemu virt machine can support few cache events and cycle/instret counters.
It also supports counter overflow for these events.
Add a DT node so that OpenSBI/Linux kernel is aware of the virt machine
capabilities. There are some dummy nodes added for testing as well.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Message-Id: <20220824221701.41932-5-atishp@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The arch review of AIA spec is completed and we now have official
extension names for AIA: Smaia (M-mode AIA CSRs) and Ssaia (S-mode
AIA CSRs).
Refer, section 1.6 of the latest AIA v0.3.1 stable specification at
https://github.com/riscv/riscv-aia/releases/download/0.3.1-draft.32/riscv-interrupts-032.pdf)
Based on above, we update QEMU RISC-V to:
1) Have separate config options for Smaia and Ssaia extensions
which replace RISCV_FEATURE_AIA in CPU features
2) Not generate AIA INTC compatible string in virt machine
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220820042958.377018-1-apatel@ventanamicro.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The reset and poweroff features of the syscon were originally added to
top level, which is a valid path for a syscon subnode. Subsequently a
reorganisation was carried out while implementing NUMA in which the
subnodes were moved into the /soc node. As /soc is a "simple-bus", this
path is invalid, and so dt-validate produces the following warnings:
/stuff/qemu/qemu.dtb: soc: poweroff: {'value': [[21845]], 'offset': [[0]], 'regmap': [[4]], 'compatible': ['syscon-poweroff']} should not be valid under {'type': 'object'}
From schema: /home/conor/.local/lib/python3.9/site-packages/dtschema/schemas/simple-bus.yaml
/stuff/qemu/qemu.dtb: soc: reboot: {'value': [[30583]], 'offset': [[0]], 'regmap': [[4]], 'compatible': ['syscon-reboot']} should not be valid under {'type': 'object'}
From schema: /home/conor/.local/lib/python3.9/site-packages/dtschema/schemas/simple-bus.yaml
Move the syscon subnodes back to the top level and silence the warnings.
Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220810184612.157317-4-mail@conchuod.ie
Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
Fixes: 18df0b4695 ("hw/riscv: virt: Allow creating multiple NUMA sockets")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
When optional AIA PLIC support was added the to the virt machine, the
address cells property was removed leading the issues with dt-validate
on a dump from the virt machine:
/stuff/qemu/qemu.dtb: plic@c000000: '#address-cells' is a required property
From schema: /stuff/linux/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
Add back the property to suppress the warning.
Reported-by: Rob Herring <robh@kernel.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Message-id: 20220810184612.157317-3-mail@conchuod.ie
Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
Fixes: e6faee6585 ("hw/riscv: virt: Add optional AIA APLIC support to virt machine")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
"uart" is not a node name that complies with the dt-schema.
Change the node name to "serial" to ix warnings seen during
dt-validate on a dtbdump of the virt machine such as:
/stuff/qemu/qemu.dtb: uart@10000000: $nodename:0: 'uart@10000000' does not match '^serial(@.*)?$'
From schema: /stuff/linux/Documentation/devicetree/bindings/serial/8250.yaml
Reported-by: Rob Herring <robh@kernel.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Message-id: 20220810184612.157317-2-mail@conchuod.ie
Link: https://lore.kernel.org/linux-riscv/20220803170552.GA2250266-robh@kernel.org/
Fixes: 04331d0b56 ("RISC-V VirtIO Machine")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Booting using "Direct Kernel Boot" for PolarFire SoC & skipping u-boot
entirely is probably not advisable, but it does at least show signs of
life. Recent Linux kernel versions make use of peripherals that are
missing definitions in QEMU and lead to kernel panics. These issues
almost certain rear their head for other methods of booting, but I was
unable to figure out a suitable HSS version that is recent enough to
support these peripherals & works with QEMU.
With these peripherals added, booting a kernel with the following hangs
hangs waiting for the system controller's hwrng, but the kernel no
longer panics. With the Linux driver for hwrng disabled, it boots to
console.
qemu-system-riscv64 -M microchip-icicle-kit \
-m 2G -smp 5 \
-kernel $(vmlinux_bin) \
-dtb $(dtb)\
-initrd $(initramfs) \
-display none -serial null \
-serial stdio
More peripherals are added than strictly required to fix the panics in
the hopes of avoiding a replication of this problem in the future.
Some of the peripherals which are in the device tree for recent kernels
are implemented in the FPGA fabric. The eMMC/SD mux, which exists as
an unimplemented device is replaced by a wider entry. This updated
entry covers both the mux & the remainder of the FPGA fabric connected
to the MSS using Fabric Interrconnect (FIC) 3.
Link: https://github.com/polarfire-soc/icicle-kit-reference-design#fabric-memory-map
Link: https://ww1.microchip.com/downloads/aemDocuments/documents/FPGA/ProductDocuments/SupportingCollateral/V1_4_Register_Map.zip
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220813135127.2971754-1-mail@conchuod.ie>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The following patch updates opentitan to match the new configuration,
as per, lowRISC/opentitan@217a0168ba
Note: with this patch we now skip the usage of the opentitan
`boot_rom`. The Opentitan boot rom contains hw verification
for devies which we are currently not supporting in qemu. As of now,
the `boot_rom` has no major significance, however, would be good to
support in the future.
Tested by running utests from the latest tock [1]
(that supports this version of OT).
[1] https://github.com/tock/tock/pull/3056
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220812005229.358850-1-wilfred.mallawa@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 'fdt' param is not being used in riscv_setup_rom_reset_vec().
Simplify the API by removing it. While we're at it, remove the redundant
'return' statement at the end of function.
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <alistair.francis@wdc.com>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: Vijai Kumar K <vijai@behindbytes.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220728181926.2123771-1-danielhb413@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If the FDT contains /chosen/rng-seed, then the Linux RNG will use it to
initialize early. Set this using the usual guest random number
generation function. This is confirmed to successfully initialize the
RNG on Linux 5.19-rc2.
Cc: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220613115810.178210-1-Jason@zx2c4.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We previously stored the device tree at a 16MB alignment from the end of
memory (or 3GB). This means we need at least 16MB of memory to be able
to do this. We don't actually need the FDT to be 16MB aligned, so let's
drop it down to 2MB so that we can support systems with less memory,
while also allowing FDT size expansion.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/992
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20220608062015.317894-1-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Various loader functions return an int which limits images to 2GB which
is fine for things like a BIOS/kernel image, but if we want to be able
to load memory images or large ramdisks then any file over 2GB would
silently fail to load.
Cc: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Jamie Iles <jamie@nuviainc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Luc Michel <lmichel@kalray.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211111141141.3295094-2-jamie@nuviainc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
fw_cfg DT node is generated after the create_fdt without any check
if the DT is being loaded from the commandline. This results in
FDT_ERR_EXISTS error if dtb is loaded from the commandline.
Generate fw_cfg node only if the DT is not loaded from the commandline.
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220526203500.847165-1-atishp@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
When both APLIC and IMSIC are present in virt machine, the APLIC should
be used as parent interrupt controller for dynamic platform devices.
In case of multiple sockets, we should prefer interrupt controller of
socket0 for dynamic platform devices.
Fixes: 3029fab643 ("hw/riscv: virt: Add support for generating
platform FDT entries")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220511144528.393530-9-apatel@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The QOM API already provides accessors for uint32 values, so reuse them.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220301225220.239065-3-shentey@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If specified CPU configuration is not valid, not just it prints error
message, it aborts and generates core dumps (depends on the operating
system). This kind of error handling should be used only when a serious
runtime error occurs.
This commit makes error handling on CPU configuration more generous on
sifive_e/u and opentitan machines. It now just prints error message and
quits (without coredumps and aborts).
This is separate from spike/virt because it involves different type
(TYPE_RISCV_HART_ARRAY) on sifive_e/u and opentitan machines.
Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <09e61e58a7543da44bdb0e0f5368afc8903b4aa6.1652509778.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If specified CPU configuration is not valid, not just it prints error
message, it aborts and generates core dumps (depends on the operating
system). This kind of error handling should be used only when a serious
runtime error occurs.
This commit makes error handling on CPU configuration more generous on
virt/spike machines. It now just prints error message and quits (without
coredumps and aborts).
Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <d17381d3ea4992808cf1894f379ca67220f61b45.1652509778.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Imply the TPM sysbus devices. This allows users to add TPM devices to
the RISC-V virt board.
This was tested by first creating an emulated TPM device:
swtpm socket --tpm2 -t -d --tpmstate dir=/tmp/tpm \
--ctrl type=unixio,path=swtpm-sock
Then launching QEMU with:
-chardev socket,id=chrtpm,path=swtpm-sock \
-tpmdev emulator,id=tpm0,chardev=chrtpm \
-device tpm-tis-device,tpmdev=tpm0
The TPM device can be seen in the memory tree and the generated device
tree.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/942
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220427234146.1130752-7-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Add support for plugging in devices, this was tested with the TPM
device.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220427234146.1130752-6-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Similar to the ARM virt machine add support for adding device tree
entries for dynamically created devices.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Message-Id: <20220427234146.1130752-5-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Create a platform bus to allow dynamic devices to be connected. This is
based on the ARM implementation.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220427234146.1130752-4-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Move the binary and device tree loading code to the machine done
notifier. This allows us to prepare for editing the device tree as part
of the notifier.
This is based on similar code in the ARM virt machine.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220427234146.1130752-2-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Commit 7c28f4da20 ("RISC-V: Don't add NULL bootargs to device-tree")
tried to avoid adding *NULL* bootargs to device tree, but unfortunately
the changes were entirely useless, due to MachineState::kernel_cmdline
can't be NULL at all as the default value is given as an empty string.
(see hw/core/machine.c::machine_initfn()).
Note the wording of *NULL* bootargs is wrong. It can't be NULL otherwise
a segfault had already been observed by dereferencing the NULL pointer.
It should be worded as *empty" bootargs.
Fixes: 7c28f4da20 ("RISC-V: Don't add NULL bootargs to device-tree")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220421055629.1177285-2-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
At present the adding '/chosen/stdout-path' property in device tree
is determined by whether a kernel command line is provided, which is
wrong. It should be added unconditionally.
Fixes: 8d8897accb ("hw/riscv: spike: Allow using binary firmware as bios")
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220421055629.1177285-1-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The current riscv_load_fdt() forces fdt_load_addr to be placed at a dram address within 3GB,
but not all platforms have dram_base within 3GB.
This patch adds an exception for dram base not within 3GB,
which will place fdt at dram_end align 16MB.
riscv_setup_rom_reset_vec() also needs to be modified
Signed-off-by: Dylan Jhong <dylan@andestech.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220419115945.37945-1-dylan@andestech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The device tree property "mmu-type" is currently exported as either
"riscv,sv32" or "riscv,sv48".
However, the riscv cpu device tree binding [1] has a specific value
"riscv,none" for a HART without a MMU.
Set the device tree property "mmu-type" to "riscv,none" when the CPU mmu
option is disabled using rv32,mmu=off or rv64,mmu=off.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/riscv/cpus.yaml?h=v5.17
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220414155510.1364147-1-niklas.cassel@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The -bios option is silently ignored if used in combination with -enable-kvm.
The reason is that the machine starts in S-Mode, and the bios typically runs in
M-Mode.
Better exit in that case to not confuse the user.
Signed-off-by: Ralf Ramsauer <ralf.ramsauer@oth-regensburg.de>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Message-Id: <20220401121842.2791796-1-ralf.ramsauer@oth-regensburg.de>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This patch updates the SPI_DEVICE, SPI_HOST0, SPI_HOST1
base addresses. Also adds these as unimplemented devices.
The address references can be found [1].
[1] 6c317992fb/hw/top_earlgrey/sw/autogen/top_earlgrey_memory.h (L107)
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20220218063839.405082-1-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
To facilitate software development of RISC-V systems with large number
of HARTs, we increase the maximum number of allowed CPUs to 512 (2^9).
We also add a detailed source level comments about limit defines which
impact the physical address space utilization.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-Id: <20220220085526.808674-6-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We extend virt machine to emulate both AIA IMSIC and AIA APLIC
devices only when "aia=aplic-imsic" parameter is passed along
with machine name in the QEMU command-line. The AIA IMSIC is
only a per-HART MSI controller so we use AIA APLIC in MSI-mode
to forward all wired interrupts as MSIs to the AIA IMSIC.
We also provide "aia-guests=<xyz>" parameter which can be used
to specify number of VS-level AIA IMSIC Guests MMIO pages for
each HART.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220220085526.808674-4-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We extend virt machine to emulate AIA APLIC devices only when
"aia=aplic" parameter is passed along with machine name in QEMU
command-line. When "aia=none" or not specified then we fallback
to original PLIC device emulation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220220085526.808674-2-anup@brainfault.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We should use the AIA INTC compatible string in the CPU INTC
DT nodes when the CPUs support AIA feature. This will allow
Linux INTC driver to use AIA local interrupt CSRs.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20220204174700.534953-17-anup@brainfault.org
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Now that RISC-V Spike machine can use BIN BIOS images, we remove
the macros used for ELF BIOS image names.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Currently, we have to use OpenSBI firmware ELF as bios for the spike
machine because the HTIF console requires ELF for parsing "fromhost"
and "tohost" symbols.
The latest OpenSBI can now optionally pick-up HTIF register address
from HTIF DT node so using this feature spike machine can now use
OpenSBI firmware BIN as bios.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
