Commit Graph

31 Commits

Author SHA1 Message Date
Markus Armbruster
46517dd497 Include sysemu/sysemu.h a lot less
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 5400 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

hw/qdev-core.h includes sysemu/sysemu.h since recent commit e965ffa70a
"qdev: add qdev_add_vm_change_state_handler()".  This is a bad idea:
hw/qdev-core.h is widely included.

Move the declaration of qdev_add_vm_change_state_handler() to
sysemu/sysemu.h, and drop the problematic include from hw/qdev-core.h.

Touching sysemu/sysemu.h now recompiles some 1800 objects.
qemu/uuid.h also drops from 5400 to 1800.  A few more headers show
smaller improvement: qemu/notify.h drops from 5600 to 5200,
qemu/timer.h from 5600 to 4500, and qapi/qapi-types-run-state.h from
5500 to 5000.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20190812052359.30071-28-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-08-16 13:31:53 +02:00
Markus Armbruster
650d103d3e Include hw/hw.h exactly where needed
In my "build everything" tree, changing hw/hw.h triggers a recompile
of some 2600 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

The previous commits have left only the declaration of hw_error() in
hw/hw.h.  This permits dropping most of its inclusions.  Touching it
now recompiles less than 200 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-19-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16 13:31:52 +02:00
Alistair Francis
fdd1bda4b4
hw/riscv: Load OpenSBI as the default firmware
If the user hasn't specified a firmware to load (with -bios) or
specified no bios (with -bios none) then load OpenSBI by default. This
allows users to boot a RISC-V kernel with just -kernel.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-07-18 14:18:45 -07:00
Like Xu
c447312747 hw/riscv: Replace global smp variables with machine smp properties
The global smp variables in riscv are replaced with smp machine properties.

A local variable of the same name would be introduced in the declaration
phase if it's used widely in the context OR replace it on the spot if it's
only used once. No semantic changes.

Signed-off-by: Like Xu <like.xu@linux.intel.com>
Message-Id: <20190518205428.90532-6-like.xu@linux.intel.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
[ehabkost: fix spike_board_init()]
[ehabkost: fix riscv_sifive_e_soc_init()]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-07-05 17:07:42 -03:00
Alistair Francis
b30422231b
hw/riscv: Add support for loading a firmware
Add support for loading a firmware file for the virt machine and the
SiFive U. This can be run with the following command:

    qemu-system-riscv64 -machine virt -bios fw_jump.bin -kernel vmlinux

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27 02:47:06 -07:00
Alistair Francis
0ac24d56c5
hw/riscv: Split out the boot functions
Split the common RISC-V boot functions into a seperate file. This allows
us to share the common code.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27 02:47:06 -07:00
Bin Meng
05446f4133
riscv: sifive_u: Update the plic hart config to support multicore
At present the PLIC is instantiated to support only one hart, while
the machine allows at most 4 harts to be created. When more than 1
hart is configured, PLIC needs to instantiated to support multicore,
otherwise an SMP OS does not work.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27 02:47:06 -07:00
Bin Meng
382cb4392f
riscv: sifive_u: Do not create hard-coded phandles in DT
At present the cpu, plic and ethclk nodes' phandles are hard-coded
to 1/2/3 in DT. If we configure more than 1 cpu for the machine,
all cpu nodes' phandles conflict with each other as they are all 1.
Fix it by removing the hardcode.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-06-27 02:47:06 -07:00
Bin Meng
a9ec1c76d5
riscv: sifive_u: Correct UART0's IRQ in the device tree
The UART0's interrupt vector is wrongly set to 1 in the device tree.
Use SIFIVE_U_UART0_IRQ instead.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-03-19 05:18:42 -07:00
Alistair Francis
8b1d0714bf
riscv: sifive_u: Allow up to 4 CPUs to be created
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-03-19 05:14:40 -07:00
Alistair Francis
40e46e516d
riscv: Ensure the kernel start address is correctly cast
Cast the kernel start address to the target bit length.

This ensures that we calculate the initrd offset to a valid address for
the architecture.

Steps to reproduce the original problem (reported by Alex):
  Build U-Boot for the virt machine for riscv32. Then run it with

    $ qemu-system-riscv32 -M virt -kernel u-boot -nographic -initrd <a file>

  You can find the initrd address with

    U-Boot# fdt addr $fdtcontroladdr
    U-Boot# fdt ls /chosen

  Then take a peek at that address:

    U-Boot# md.b <addr>

  and you will see that there is nothing there without this patch. The
  reason is that the binary was loaded to a negative address.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Reported-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-02-11 15:56:22 -08:00
Liam Merwick
4366e1db16 elf: Add optional function ptr to load_elf() to parse ELF notes
This patch adds an optional function pointer, 'elf_note_fn', to
load_elf() which causes load_elf() to additionally parse any
ELF program headers of type PT_NOTE and check to see if the ELF
Note is of the type specified by the 'translate_opaque' arg.
If a matching ELF Note is found then the specfied function pointer
is called to process the ELF note.

Passing a NULL function pointer results in ELF Notes being skipped.

The first consumer of this functionality is the PVHboot support
which needs to read the XEN_ELFNOTE_PHYS32_ENTRY ELF Note while
loading the uncompressed kernel binary in order to discover the
boot entry address for the x86/HVM direct boot ABI.

Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-02-05 16:50:16 +01:00
Michael Clark
194eef09d0
RISC-V: Enable second UART on sifive_e and sifive_u
Previously the second UARTs on the sifive_e and sifive_u machines
where disabled due to check-qtest-riscv32 and check-qtest-riscv64
failures. Recent changes in the QEMU core serial code have
resolved these failures so the second UARTs can be instantiated.

Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-12-20 12:08:43 -08:00
Anup Patel
6c60757eb6
sifive_u: Set 'clock-frequency' DT property for SiFive UART
The 'clock-frequency' DT property is required by U-Boot to compute
the divider value. This patch sets the 'clock-frequency' DT property
of the SiFive UART device tree node (similar to virt machine).

Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-12-20 12:03:26 -08:00
Anup Patel
fe93582cf5
sifive_u: Add clock DT node for GEM ethernet
The GEM ethernet on SiFive unleashed has fixed input clock
of 125MHz as-per SiFive FU540 manual. This patch updates FDT
generation for QEMU sifive_u machine to provide fixed-rate
clock for GEM ethernet.

Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-12-20 12:03:12 -08:00
Michael Clark
7c28f4da20
RISC-V: Don't add NULL bootargs to device-tree
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-10-17 13:02:30 -07:00
Mao Zhongyi
371b74e221 Drop "qemu:" prefix from error_report() arguments
error_report and friends already add a "qemu-system-xxx" prefix
to the string, so a "qemu:" prefix is redundant in the string.
Just drop it.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1537495530-580-1-git-send-email-maozhongyi@cmss.chinamobile.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-09-24 17:13:07 +02:00
Alistair Francis
4eea9d7deb sifive_u: Fix crash when introspecting the device
Use the new object_initialize_child() and sysbus_init_child_obj() to
fix the issue.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-19 09:05:48 -07:00
Alistair Francis
5a7f76a3d4 hw/riscv/sifive_u: Connect the Cadence GEM Ethernet device
Connect the Cadence GEM ethernet device. This also requires us to
expose the plic interrupt lines.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Alistair Francis
bde3ab9a9f hw/riscv/sifive_u: Move the uart device tree node under /soc/
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Alistair Francis
98ceee7fdc hw/riscv/sifive_u: Set the interrupt controller number of interrupts
Set the interrupt-controller ndev to the correct number taken from the
HiFive Unleashed board.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Alistair Francis
2a1a6f6d47 hw/riscv/sifive_u: Set the soc device tree node as a simple-bus
To allow Linux to ennumerate devices on the /soc/ node set it as a
"simple-bus".

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Alistair Francis
647a70a10f hw/riscv/sifive_plic: Use gpios instead of irqs
Instead of creating the interrupt in lines with qemu_allocate_irq() use
qdev_init_gpio_in() as this gives us the ability to use the qdev*gpio*()
helpers later on.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Alistair Francis
2308092b2b hw/riscv/sifive_u: Create a SiFive U SoC object
Create a SiFive Unleashed U54 SoC and use that in the sifive_u machine.

We leave the SoC, RAM, device tree and reset/fdt loading as part of the
machine. All the other device creation has been moved to the SoC.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Michael Clark <mjc@sifive.com>
2018-07-05 15:24:25 -07:00
Michael Clark
5aec3247c1
RISC-V: Mark ROM read-only after copying in code
The sifive_u machine already marks its ROM readonly however
it has the wrong base address for its mask ROM. This patch
fixes the sifive_u mask ROM base address.

This commit makes all other boards consistently use mask_rom
as the variable name for their ROMs. Boards that use device
tree now check that that the device tree fits in the assigned
ROM space using the new qemu_fdt_totalsize(void *fdt)
interface, adding a bounds check and error message. This
can detect truncation.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Alistair Francis <Alistair.Francis@wdc.com>
2018-05-06 10:54:21 +12:00
Michael Clark
89854803ce
RISC-V: Remove EM_RISCV ELF_MACHINE indirection
Pointless indirection. Other ports use EM_ constants directly.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-05-06 10:39:38 +12:00
Michael Clark
42b3a4b7cc
RISC-V: Remove unused class definitions
Removes a whole lot of unnecessary boilerplate code. Machines
don't need to be objects. The expansion of the SOC object model
for the RISC-V machines will happen in the future as SiFive
plans to add their FE310 and FU540 SOCs to QEMU. However, it
seems that this present boilerplate is complete unnecessary.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-05-06 10:39:38 +12:00
Michael Clark
b7938980fb
RISC-V: Remove identity_translate from load_elf
When load_elf is called with NULL as an argument to the
address translate callback, it does an identity translation.
This commit removes the redundant identity_translate callback.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-05-06 10:39:38 +12:00
Michael Clark
2a8756ed7d
RISC-V: Replace hardcoded constants with enum values
The RISC-V device-tree code has a number of hard-coded
constants and this change moves them into header enums.

Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Michael Clark <mjc@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-05-06 10:39:38 +12:00
Peter Maydell
9bca0edb28 Change references to serial_hds[] to serial_hd()
Change all the uses of serial_hds[] to go via the new
serial_hd() function. Code change produced with:
 find hw -name '*.[ch]' | xargs sed -i -e 's/serial_hds\[\([^]]*\)\]/serial_hd(\1)/g'

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20180420145249.32435-8-peter.maydell@linaro.org
2018-04-26 13:57:00 +01:00
Michael Clark
a7240d1e4a
SiFive Freedom U Series RISC-V Machine
This provides a RISC-V Board compatible with the the SiFive Freedom U SDK.
The following machine is implemented:

- 'sifive_u'; CLINT, PLIC, UART, device-tree

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-07 08:30:28 +13:00