Commit Graph

96058 Commits

Author SHA1 Message Date
Jamin Lin 17075ef244 hw/gpio: Add ASPEED GPIO model for AST1030
AST1030 integrates one set of Parallel GPIO Controller
with maximum 151 control pins, which are 21 groups
(A~U, exclude pin: M6 M7 Q5 Q6 Q7 R0 R1 R4 R5 R6 R7 S0 S3 S4
S5 S6 S7 ) and the group T and U are input only.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220525053444.27228-3-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Jamin Lin 7b1d21a8ba hw/gpio Add GPIO read/write trace event.
Add GPIO read/write trace event for aspeed model.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220525053444.27228-2-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas 6827ff20b2 hw: aspeed: Init all UART's with serial devices
Background:

AspeedMachineClass.uart_default specifies the serial console UART, which
usually corresponds to the "stdout-path" in the device tree.

The default value is UART5, since most boards use UART5 for this:

    amc->uart_default = ASPEED_DEV_UART5;

Users can override AspeedMachineClass.uart_default in their board's machine
class init to specify something besides UART5. For example, for fuji-bmc:

    amc->uart_default = ASPEED_DEV_UART1;

We only connect this one UART, of the 5 UART's on the AST2400 and AST2500
and the 13 UART's on the AST2600 and AST1030, to a serial device that QEMU
users can use. None of the other UART's are initialized, and the only way
to override this attribute is by creating a specialized board definition,
requiring QEMU source code changes and rebuilding.

The result of this is that if you want to get serial console output on a
board that uses UART3, you need to add a board definition. This was
encountered by Zev in OpenBMC. [1]

Changes:

This commit initializes all of the UART's present on each Aspeed chip with
serial devices and allows the QEMU user to connect as many or few as they
like to serial devices. For example, you can still run QEMU and just connect
stdout to the machine's default UART, without specifying any additional
serial devices:

    qemu-system-arm -machine fuji-bmc \
        -drive file=fuji.mtd,format=raw,if=mtd \
        -nographic

However, if you don't want to add a special machine definition, you can now
manually configure UART1 to connect to stdout and get serial console output,
even if the machine's default is UART5:

    qemu-system-arm -machine ast2600-evb \
        -drive file=fuji.mtd,format=raw,if=mtd \
        -serial null -serial mon:stdio -display none

In the example above, the first "-serial null" argument is connected to
UART5, and "-serial mon:stdio" is connected to UART1.

Another example: you can get serial console output from Wedge100, which uses
UART3, by reusing the palmetto AST2400 machine and rewiring the serial
device arguments:

    qemu-system-arm -machine palmetto-bmc \
        -drive file=wedge100.mtd,format=raw,if=mtd \
        -serial null -serial null -serial null \
        -serial mon:stdio -display none

There is a slight change in behavior introduced with this change: now, each
UART's memory-mapped IO region will have a serial device model connected to
it. Previously, all reads and writes to those regions would be ineffective
and return zero values, but now some values will be nonzero, even when the
user doesn't connect a serial device backend (like a socket, file, etc). For
example, the line status register might indicate that the transmit buffer is
empty now, whereas previously it might have always indicated it was full.

[1] https://lore.kernel.org/openbmc/YnzGnWjkYdMUUNyM@hatter.bewilderbeest.net/
[2] https://github.com/facebook/openbmc/releases/download/v2021.49.0/fuji.mtd
[3] https://github.com/facebook/openbmc/releases/download/v2021.49.0/wedge100.mtd

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516062328.298336-6-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas 470253b6d0 hw: aspeed: Introduce common UART init function
Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516062328.298336-5-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas 94d10f4210 hw: aspeed: Ensure AST1030 respects uart-default
The AST1030 machine initialization was not respecting the Aspeed SoC
property "uart-default", which specifies which UART should be connected to
the first serial device, it was just always connecting UART5. This doesn't
change any behavior, because the default value for "uart-default" is UART5,
but it makes it possible to override this in new machine definitions using
the AST1030.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516062328.298336-4-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas c5e1bdb9e2 hw: aspeed: Add uarts_num SoC attribute
AST2400 and AST2500 have 5 UART's, while the AST2600 and AST1030 have 13.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516062328.298336-3-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas ab5e86053d hw: aspeed: Add missing UART's
This adds the missing UART memory and IRQ mappings for the AST2400, AST2500,
AST2600, and AST1030.

This also includes the new UART interfaces added in the AST2600 and AST1030
from UART6 to UART13. The addresses and interrupt numbers for these two
later chips are identical.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516062328.298336-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Cédric Le Goater 699db71520 aspeed: Introduce a get_irq AspeedSoCClass method
and make routine aspeed_soc_get_irq() common to all SoCs. This will be
useful to share code.

Cc: Jamin Lin <jamin_lin@aspeedtech.com>
Cc: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Peter Delevoryas <pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220516055620.2380197-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Iris Chen 188052a133 hw: m25p80: allow write_enable latch get/set
The write_enable latch property is not currently exposed.
This commit makes it a modifiable property.

Signed-off-by: Iris Chen <irischenlj@fb.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Message-Id: <20220513055022.951759-1-irischenlj@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas 264a360ae0 docs: aspeed: Add fby35 board
Add fby35 to the list of Aspeed boards.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Message-Id: <20220506193354.990532-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Delevoryas fa699e80a8 hw/arm/aspeed: Add fby35 machine type
Add the 'fby35-bmc' machine type based on the kernel DTS[1] and userspace
i2c setup scripts[2]. Undefined values are inherited from the AST2600-EVB.

Reference images can be found in Facebook OpenBMC Github Release assets
as "fby35.mtd". [3]

You can boot the reference images as follows (fby35 uses dual-flash):

qemu-system-arm -machine fby35-bmc \
    -drive file=fby35.mtd,format=raw,if=mtd \
    -drive file=fby35.mtd,format=raw,if=mtd \
    -nographic

[1] 412d505325/arch/arm/boot/dts/aspeed-bmc-facebook-fby35.dts
[2] e2294ff5d3/meta-facebook/meta-fby35/recipes-fby35/plat-utils/files/setup-dev.sh
[3] https://github.com/facebook/openbmc/releases

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220503225925.1798324-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Jamin Lin 3d393bb7d3 docs: add minibmc section in aspeed document
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220506031521.13254-2-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Richard Henderson 0cac736e73 Third RISC-V PR for QEMU 7.1
* Fixes for accessing VS hypervisor CSRs
  * Improvements for RISC-V Vector extension
  * Fixes for accessing mtimecmp
  * Add new short-isa-string CPU option
  * Improvements to RISC-V machine error handling
  * Disable the "G" extension by default internally, no functional change
  * Enforce floating point extension requirements
  * Cleanup ISA extension checks
  * Resolve redundant property accessors
  * Fix typo of mimpid cpu option
  * Improvements for virtulisation
  * Add zicsr/zifencei to isa_string
  * Support for VxWorks uImage
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Merge tag 'pull-riscv-to-apply-20220525' of github.com:alistair23/qemu into staging

Third RISC-V PR for QEMU 7.1

 * Fixes for accessing VS hypervisor CSRs
 * Improvements for RISC-V Vector extension
 * Fixes for accessing mtimecmp
 * Add new short-isa-string CPU option
 * Improvements to RISC-V machine error handling
 * Disable the "G" extension by default internally, no functional change
 * Enforce floating point extension requirements
 * Cleanup ISA extension checks
 * Resolve redundant property accessors
 * Fix typo of mimpid cpu option
 * Improvements for virtulisation
 * Add zicsr/zifencei to isa_string
 * Support for VxWorks uImage

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# gpg: Signature made Tue 24 May 2022 03:43:23 PM PDT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
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* tag 'pull-riscv-to-apply-20220525' of github.com:alistair23/qemu: (23 commits)
  hw/core: loader: Set is_linux to true for VxWorks uImage
  hw/core: Sync uboot_image.h from U-Boot v2022.01
  target/riscv: add zicsr/zifencei to isa_string
  hw/riscv: virt: Fix interrupt parent for dynamic platform devices
  target/riscv: Set [m|s]tval for both illegal and virtual instruction traps
  target/riscv: Fix hstatus.GVA bit setting for traps taken from HS-mode
  target/riscv: Fix csr number based privilege checking
  target/riscv: Fix typo of mimpid cpu option
  target/riscv: check 'I' and 'E' after checking 'G' in riscv_cpu_realize
  hw/riscv/sifive_u: Resolve redundant property accessors
  hw/vfio/pci-quirks: Resolve redundant property getters
  target/riscv: Move/refactor ISA extension checks
  target/riscv: FP extension requirements
  target/riscv: Change "G" expansion
  target/riscv: Disable "G" by default
  target/riscv: Fix coding style on "G" expansion
  hw/riscv: Make CPU config error handling generous (sifive_e/u/opentitan)
  hw/riscv: Make CPU config error handling generous (virt/spike)
  target/riscv: Add short-isa-string option
  target/riscv: Move Zhinx* extensions on ISA string
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-24 15:55:12 -07:00
Bin Meng 8fe63fe8e5 hw/core: loader: Set is_linux to true for VxWorks uImage
VxWorks 7 uses the same boot interface as the Linux kernel on Arm
(64-bit only), PowerPC and RISC-V architectures. Add logic to set
is_linux to true for VxWorks uImage for these architectures in
load_uboot_image().

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220324134812.541274-2-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Bin Meng d616889ece hw/core: Sync uboot_image.h from U-Boot v2022.01
Sync uboot_image.h from upstream U-Boot v2022.01 release [1].

[1] https://source.denx.de/u-boot/u-boot/-/blob/v2022.01/include/image.h

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220324134812.541274-1-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Hongren (Zenithal) Zheng 5160bacc06 target/riscv: add zicsr/zifencei to isa_string
Zicsr/Zifencei is not in 'I' since ISA version 20190608,
thus to fully express the capability of the CPU,
they should be exposed in isa_string.

Signed-off-by: Hongren (Zenithal) Zheng <i@zenithal.me>
Tested-by: Jiatai He <jiatai2021@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <YoTqwpfrodveJ7CR@Sun>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Anup Patel d644e5e44f hw/riscv: virt: Fix interrupt parent for dynamic platform devices
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>
2022-05-24 10:38:50 +10:00
Anup Patel 62cf02451e target/riscv: Set [m|s]tval for both illegal and virtual instruction traps
Currently, the [m|s]tval CSRs are set with trapping instruction encoding
only for illegal instruction traps taken at the time of instruction
decoding.

In RISC-V world, a valid instructions might also trap as illegal or
virtual instruction based to trapping bits in various CSRs (such as
mstatus.TVM or hstatus.VTVM).

We improve setting of [m|s]tval CSRs for all types of illegal and
virtual instruction traps.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220511144528.393530-4-apatel@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Anup Patel 24826da0ee target/riscv: Fix hstatus.GVA bit setting for traps taken from HS-mode
Currently, QEMU does not set hstatus.GVA bit for traps taken from
HS-mode into HS-mode which breaks the Xvisor nested MMU test suite
on QEMU. This was working previously.

This patch updates riscv_cpu_do_interrupt() to fix the above issue.

Fixes: 86d0c45739 ("target/riscv: Fixup setting GVA")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220511144528.393530-3-apatel@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Anup Patel c1fbcecb3a target/riscv: Fix csr number based privilege checking
When hypervisor and VS CSRs are accessed from VS-mode or VU-mode,
the riscv_csrrw_check() function should generate virtual instruction
trap instead illegal instruction trap.

Fixes: 0a42f4c440 (" target/riscv: Fix CSR perm checking for HS mode")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Message-Id: <20220511144528.393530-2-apatel@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Frank Chang 075eeda931 target/riscv: Fix typo of mimpid cpu option
"mimpid" cpu option was mistyped to "mipid".

Fixes: 9951ba94 ("target/riscv: Support configuarable marchid, mvendorid, mipid CSR values")
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220523153147.15371-1-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Weiwei Li bb06941f95 target/riscv: check 'I' and 'E' after checking 'G' in riscv_cpu_realize
- setting ext_g will implicitly set ext_i

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220518012611.6772-1-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Bernhard Beschow 96c7fff703 hw/riscv/sifive_u: Resolve redundant property accessors
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>
2022-05-24 10:38:50 +10:00
Bernhard Beschow 8f1b608798 hw/vfio/pci-quirks: Resolve redundant property getters
The QOM API already provides getters for uint64 and uint32 values, so reuse
them.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220301225220.239065-2-shentey@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI bc57381669 target/riscv: Move/refactor ISA extension checks
We should separate "check" and "configure" steps as possible.
This commit separates both steps except vector/Zfinx-related checks.

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <c3145fa37a529484cf3047c8cb9841e9effad4b0.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI 1086504c6f target/riscv: FP extension requirements
QEMU allowed inconsistent configurations that made floating point
arithmetic effectively unusable.

This commit adds certain checks for consistent FP arithmetic:

-   F requires Zicsr
-   Zfinx requires Zicsr
-   Zfh/Zfhmin require F
-   D requires F
-   V requires D

Because F/D/Zicsr are enabled by default (and an error will not occur unless
we manually disable one or more of prerequisites), this commit just enforces
the user to give consistent combinations.

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <00e7b1c6060dab32ac7d49813b1ca84d3eb63298.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI 9f6b7da5d2 target/riscv: Change "G" expansion
On ISA version 20190608 or later, "G" expands to "IMAFD_Zicsr_Zifencei".
Both "Zicsr" and "Zifencei" are enabled by default and "G" is supposed to
be (virtually) enabled as well, it should be safe to change its expansion.

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <d1b5be550a2893a0fd32c928f832d2ff7bfafe35.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI 1d398ab9dc target/riscv: Disable "G" by default
Because "G" virtual extension expands to "IMAFD", we cannot separately
disable extensions like "F" or "D" without disabling "G".  Because all
"IMAFD" are enabled by default, it's harmless to disable "G" by default.

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <cab7205f1d7668f642fa242386543334af6bc1bd.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI 61cdf4593e target/riscv: Fix coding style on "G" expansion
Because ext_? members are boolean variables, operator `&&' should be
used instead of `&'.

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Víctor Colombo <victor.colombo@eldorado.org.br>
Message-Id: <91633f8349253656dd08bc8dc36498a9c7538b10.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:50 +10:00
Tsukasa OI 91a3387dc4 hw/riscv: Make CPU config error handling generous (sifive_e/u/opentitan)
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>
2022-05-24 10:38:50 +10:00
Tsukasa OI 4bcfc391ac hw/riscv: Make CPU config error handling generous (virt/spike)
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>
2022-05-24 10:38:50 +10:00
Tsukasa OI a4a9a4432e target/riscv: Add short-isa-string option
Because some operating systems don't correctly parse long ISA extension
string, this commit adds short-isa-string boolean option to disable
generating long ISA extension strings on Device Tree.

For instance, enabling Zfinx and Zdinx extensions and booting Linux (5.17 or
earlier) with FPU support caused a kernel panic.

Operating Systems which short-isa-string might be helpful:

1.  Linux (5.17 or earlier)
2.  FreeBSD (at least 14.0-CURRENT)
3.  OpenBSD (at least current development version)

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <7c1fe5f06b0a7646a47e9bcdddb1042bb60c69c8.1652181972.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 10:38:46 +10:00
Tsukasa OI 6047dcc245 target/riscv: Move Zhinx* extensions on ISA string
This commit moves ISA string conversion for Zhinx and Zhinxmin extensions.
Because extension category ordering of "H" is going to be after "V",
their ordering is going to be valid (on canonical order).

Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <7a988aedb249b6709f9ce5464ff359b60958ca54.1652181972.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 09:48:20 +10:00
Atish Patra 77046729f9 hw/intc: Pass correct hartid while updating mtimecmp
timecmp update function should be invoked with hartid for which
timecmp is being updated. The following patch passes the incorrect
hartid to the update function.

Fixes: e2f01f3c2e ("hw/intc: Make RISC-V ACLINT mtime MMIO register writable")

Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220513221458.1192933-1-atishp@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 09:48:20 +10:00
eopXD 02b511985e target/riscv: rvv: Fix early exit condition for whole register load/store
Vector whole register load instructions have EEW encoded in the opcode,
so we shouldn't take SEW here. Vector whole register store instructions
are always EEW=8.

Signed-off-by: eop Chen <eop.chen@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <165181414065.18540.14828125053334599921-0@git.sr.ht>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 09:48:20 +10:00
Dylan Reid d6cd3ae0eb target/riscv: Fix VS mode hypervisor CSR access
VS mode access to hypervisor CSRs should generate virtual, not illegal,
instruction exceptions.

Don't return early and indicate an illegal instruction exception when
accessing a hypervisor CSR from VS mode. Instead, fall through to the
`hmode` predicate to return the correct virtual instruction exception.

Signed-off-by: Dylan Reid <dgreid@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220506165456.297058-1-dgreid@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2022-05-24 09:48:20 +10:00
Ilya Leoshkevich 565a84c1e6 linux-user/host/s390: Treat EX and EXRL as writes
clang-built s390x branch-relative-long test fails on clang-built s390x
QEMU due to the following sequence of events:

- The test zeroes out a code page, clang generates exrl+xc for this.

- do_helper_xc() is called. Clang generates exrl+xc there as well.

- Since there already exists a TB for the code in question, its page is
  read-only and SIGSEGV is raised.

- host_signal_handler() calls host_signal_write() and the latter does
  not recognize exrl as a write. Therefore page_unprotect() is not
  called and the signal is forwarded to the test.

Fix by treating EXRL (and EX, just in case) as writes. There may be
false positives, but they will lead only to an extra page_unprotect()
call.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220504114819.1729737-1-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:54:02 +02:00
Ilya Leoshkevich 1a75b14038 tests/tcg/s390x: Test unwinding from signal handlers
Add a small test to prevent regressions.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20220503225157.1696774-3-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:52:27 +02:00
Ilya Leoshkevich 9a12adc704 linux-user/s390x: Fix unwinding from signal handlers
Commit 31330e6cec ("linux-user/s390x: Implement setup_sigtramp")
removed an unused field from rt_sigframe, disturbing offsets of other
fields and breaking unwinding from signal handlers (e.g. libgcc's
s390_fallback_frame() relies on this struct having a specific layout).
Restore the field and add a comment.

Reported-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Fixes: 31330e6cec ("linux-user/s390x: Implement setup_sigtramp")
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220503225157.1696774-2-iii@linux.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:52:27 +02:00
Philippe Mathieu-Daudé 0effdc29b5 linux-user: Remove pointless CPU{ARCH}State casts
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220509205728.51912-4-philippe.mathieu.daude@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:47:20 +02:00
Philippe Mathieu-Daudé a0939b8916 linux-user: Have do_syscall() use CPUArchState* instead of void*
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220509205728.51912-3-philippe.mathieu.daude@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:47:19 +02:00
Philippe Mathieu-Daudé 2f6f4290e0 linux-user/elfload: Remove pointless non-const CPUArchState cast
fill_thread_info() takes a pointer to const.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220509205728.51912-2-philippe.mathieu.daude@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:47:19 +02:00
Fabrice Fontaine c3a28d7122 linux-user/syscall.c: fix build without RLIMIT_RTTIME
RLIMIT_RTTIME is not provided by uclibc-ng or by musl prior to version
1.2.0 and
2507e7f531
resulting in the following build failure since
https://git.qemu.org/?p=qemu.git;a=commit;h=244fd08323088db73590ff2317dfe86f810b51d7:

../linux-user/syscall.c: In function 'target_to_host_resource':
../linux-user/syscall.c:1057:16: error: 'RLIMIT_RTTIME' undeclared (first use in this function); did you mean 'RLIMIT_NOFILE'?
 1057 |         return RLIMIT_RTTIME;
      |                ^~~~~~~~~~~~~
      |                RLIMIT_NOFILE

Fixes:
 - http://autobuild.buildroot.org/results/22d3b584b704613d030e1ea9e6b709b713e4cc26

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220523105239.1499162-1-fontaine.fabrice@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 22:41:59 +02:00
Jaroslav Jindrak f8d426a685 hostmem: default the amount of prealloc-threads to smp-cpus
Prior to the introduction of the prealloc-threads property, the amount
of threads used to preallocate memory was derived from the value of
smp-cpus passed to qemu, the amount of physical cpus of the host
and a hardcoded maximum value. When the prealloc-threads property
was introduced, it included a default of 1 in backends/hostmem.c and
a default of smp-cpus using the sugar API for the property itself. The
latter default is not used when the property is not specified on qemu's
command line, so guests that were not adjusted for this change suddenly
started to use the default of 1 thread to preallocate memory, which
resulted in observable slowdowns in guest boots for guests with large
memory (e.g. when using libvirt <8.2.0 or managing guests manually).

This commit restores the original behavior for these cases while not
impacting guests started with the prealloc-threads property in any way.

Fixes: 220c1fd864e9d ("hostmem: introduce "prealloc-threads" property")
Signed-off-by: Jaroslav Jindrak <dzejrou@gmail.com>
Message-Id: <20220517123858.7933-1-dzejrou@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-23 10:56:01 +02:00
Yang Weijiang 3a7a27cffb target/i386: Remove LBREn bit check when access Arch LBR MSRs
Live migration can happen when Arch LBR LBREn bit is cleared,
e.g., when migration happens after guest entered SMM mode.
In this case, we still need to migrate Arch LBR MSRs.

Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20220517155024.33270-1-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-23 10:56:01 +02:00
Richard Henderson 60f1c8017a linux-user: Clean up arg_start/arg_end confusion
We had two sets of variables: arg_start/arg_end, and
arg_strings/env_strings.  In linuxload.c, we set the
first pair to the bounds of the argv strings, but in
elfload.c, we set the first pair to the bounds of the
argv pointers and the second pair to the bounds of
the argv strings.

Remove arg_start/arg_end, replacing them with the standard
argc/argv/envc/envp values.  Retain arg_strings/env_strings
with the meaning we were using in elfload.c.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/714
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220427025129.160184-1-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-05-23 08:15:19 +02:00
Richard Henderson 3757b0d08b * Remove Ubuntu 18.04 containers (not supported anymore)
* Improve the cleanup of the QEMU binary in case of failing qtests
 * Update the Windows support statement
 * Remove the capstone submodule (and rely on Capstone of the distros instead)
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Merge tag 'pull-request-2022-05-18' of https://gitlab.com/thuth/qemu into staging

* Remove Ubuntu 18.04 containers (not supported anymore)
* Improve the cleanup of the QEMU binary in case of failing qtests
* Update the Windows support statement
* Remove the capstone submodule (and rely on Capstone of the distros instead)

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# gpg: Signature made Wed 18 May 2022 12:40:36 AM PDT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [undefined]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [undefined]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [undefined]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2022-05-18' of https://gitlab.com/thuth/qemu:
  capstone: Remove the capstone submodule
  capstone: Allow version 3.0.5 again
  tests/vm: Add capstone to the NetBSD and OpenBSD VMs
  docs/about: Update the support statement for Windows
  tests/qtest: use prctl(PR_SET_PDEATHSIG) as fallback to kill QEMU
  tests/qtest: fix registration of ABRT handler for QEMU cleanup
  Remove Ubuntu 18.04 container support from the repository
  gitlab-ci: Switch the container of the 'check-patch' & 'check-dco' jobs

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-20 08:04:30 -07:00
Richard Henderson 3a650ac995 target-arm queue:
* Implement FEAT_S2FWB
  * Implement FEAT_IDST
  * Drop unsupported_encoding() macro
  * hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
  * Fix aarch64 debug register names
  * hw/adc/zynq-xadc: Use qemu_irq typedef
  * target/arm/helper.c: Delete stray obsolete comment
  * Make number of counters in PMCR follow the CPU
  * hw/arm/virt: Fix dtb nits
  * ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY
  * target/arm: Fix PAuth keys access checks for disabled SEL2
  * Enable FEAT_HCX for -cpu max
  * Use FIELD definitions for CPACR, CPTR_ELx
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Merge tag 'pull-target-arm-20220519' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Implement FEAT_S2FWB
 * Implement FEAT_IDST
 * Drop unsupported_encoding() macro
 * hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
 * Fix aarch64 debug register names
 * hw/adc/zynq-xadc: Use qemu_irq typedef
 * target/arm/helper.c: Delete stray obsolete comment
 * Make number of counters in PMCR follow the CPU
 * hw/arm/virt: Fix dtb nits
 * ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY
 * target/arm: Fix PAuth keys access checks for disabled SEL2
 * Enable FEAT_HCX for -cpu max
 * Use FIELD definitions for CPACR, CPTR_ELx

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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 19 May 2022 10:35:53 AM PDT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [full]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [full]

* tag 'pull-target-arm-20220519' of https://git.linaro.org/people/pmaydell/qemu-arm: (22 commits)
  target/arm: Use FIELD definitions for CPACR, CPTR_ELx
  target/arm: Enable FEAT_HCX for -cpu max
  target/arm: Fix PAuth keys access checks for disabled SEL2
  ptimer: Rename PTIMER_POLICY_DEFAULT to PTIMER_POLICY_LEGACY
  hw/arm/virt: Drop #size-cells and #address-cells from gpio-keys dtb node
  hw/arm/virt: Fix incorrect non-secure flash dtb node name
  target/arm: Make number of counters in PMCR follow the CPU
  target/arm/helper.c: Delete stray obsolete comment
  hw/adc/zynq-xadc: Use qemu_irq typedef
  Fix aarch64 debug register names.
  hw/intc/arm_gicv3: Provide ich_num_aprs()
  hw/intc/arm_gicv3: Use correct number of priority bits for the CPU
  hw/intc/arm_gicv3: Support configurable number of physical priority bits
  hw/intc/arm_gicv3_kvm.c: Stop using GIC_MIN_BPR constant
  hw/intc/arm_gicv3: report correct PRIbits field in ICV_CTLR_EL1
  hw/intc/arm_gicv3_cpuif: Handle CPUs that don't specify GICv3 parameters
  target/arm: Drop unsupported_encoding() macro
  target/arm: Implement FEAT_IDST
  target/arm: Enable FEAT_S2FWB for -cpu max
  target/arm: Implement FEAT_S2FWB
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-05-19 11:56:39 -07:00
Richard Henderson fab8ad39fb target/arm: Use FIELD definitions for CPACR, CPTR_ELx
We had a few CPTR_* bits defined, but missed quite a few.
Complete all of the fields up to ARMv9.2.
Use FIELD_EX64 instead of manual extract32.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220517054850.177016-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-19 18:34:10 +01:00
Richard Henderson 5814d587fe target/arm: Enable FEAT_HCX for -cpu max
This feature adds a new register, HCRX_EL2, which controls
many of the newer AArch64 features.  So far the register is
effectively RES0, because none of the new features are done.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220517054850.177016-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-19 16:19:03 +01:00