There is no point in using a void pointer to access the NVIC.
Use the real type to avoid casting it while debugging.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230206223502.25122-11-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use the SCLP_EVENT() QOM type-checking macro to avoid DO_UPCAST().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230212225144.58660-16-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Include it in the .c files instead that use the error reporting
functions.
Message-Id: <20230210111931.1115489-1-thuth@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Include "hw/registerfields.h" in the .c files instead (if needed).
Message-Id: <20230210112315.1116966-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
It's been deprecated since QEMU v6.2, so it should be OK to
finally remove this now.
Message-Id: <20230209161540.1054669-1-thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
virtio_blk_update_config() calls blk_get_geometry and blk_getlength,
and both functions eventually end up calling bdrv_poll_co when not
running in a coroutine:
- blk_getlength is a co_wrapper_mixed function
- blk_get_geometry calls bdrv_get_geometry -> bdrv_nb_sectors, a
co_wrapper_mixed function too
Since we are not running in a coroutine, we need to take s->blk
AioContext lock, otherwise bdrv_poll_co will inevitably call
AIO_WAIT_WHILE and therefore try to un unlock() an AioContext lock
that was never acquired.
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=2167838
Steps to reproduce the issue: simply boot a VM with
-object '{"qom-type":"iothread","id":"iothread1"}' \
-blockdev '{"driver":"file","filename":"$QCOW2","aio":"native","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
-device virtio-blk-pci,iothread=iothread1,drive=libvirt-1-format,id=virtio-disk0,bootindex=1,write-cache=on
and observe that it will fail not manage to boot with "qemu_mutex_unlock_impl: Operation not permitted"
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lukáš Doktor <ldoktor@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230208111148.1040083-1-eesposit@redhat.com>
vhost_dev_cleanup() clears vhost_dev so back up its vqs member to free
the memory pointed by the member.
Fixes: 98fc1ada4c ("virtio: add vhost-user-fs base device")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230130140225.77964-1-akihiko.odaki@daynix.com>
Tracked down with the help of scripts/clean-includes.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230202133830.2152150-21-armbru@redhat.com>
This commit was created with scripts/clean-includes.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20230202133830.2152150-19-armbru@redhat.com>
This commit was created with scripts/clean-includes.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230202133830.2152150-18-armbru@redhat.com>
This commit was created with scripts/clean-includes.
All .c should include qemu/osdep.h first. The script performs three
related cleanups:
* Ensure .c files include qemu/osdep.h first.
* Including it in a .h is redundant, since the .c already includes
it. Drop such inclusions.
* Likewise, including headers qemu/osdep.h includes is redundant.
Drop these, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20230202133830.2152150-9-armbru@redhat.com>
* various small cleanups and fixes
* new variant of the supermicrox11-bmc machine using an ast2500-a1 SoC
* at24c_eeprom extension to define eeprom contents with static arrays
* ast10x0 model and test improvements
* avocado update of images to use the latest
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Merge tag 'pull-aspeed-20230207' of https://github.com/legoater/qemu into staging
aspeed queue:
* various small cleanups and fixes
* new variant of the supermicrox11-bmc machine using an ast2500-a1 SoC
* at24c_eeprom extension to define eeprom contents with static arrays
* ast10x0 model and test improvements
* avocado update of images to use the latest
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# Primary key fingerprint: A0F6 6548 F048 95EB FE6B 0B60 51A3 43C7 CFFB ECA1
* tag 'pull-aspeed-20230207' of https://github.com/legoater/qemu: (25 commits)
aspeed/sdmc: Drop unnecessary scu include
tests/avocado: Test Aspeed Zephyr SDK v00.01.08 on AST1030 board
hw/arm/aspeed_ast10x0: Add TODO comment to use Cortex-M4F
hw/arm/aspeed_ast10x0: Map HACE peripheral
hw/arm/aspeed_ast10x0: Map the secure SRAM
hw/arm/aspeed_ast10x0: Map I3C peripheral
hw/arm/aspeed_ast10x0: Add various unimplemented peripherals
hw/misc/aspeed_hace: Do not crash if address_space_map() failed
hw/watchdog/wdt_aspeed: Log unimplemented registers as UNIMP level
hw/watchdog/wdt_aspeed: Extend MMIO range to cover more registers
hw/watchdog/wdt_aspeed: Rename MMIO region size as 'iosize'
hw/nvram/eeprom_at24c: Make reset behavior more like hardware
hw/arm/aspeed: Add aspeed_eeprom.c
hw/nvram/eeprom_at24c: Add init_rom field and at24c_eeprom_init_rom helper
hw/arm/aspeed: Replace aspeed_eeprom_init with at24c_eeprom_init
hw/arm: Extract at24c_eeprom_init helper from Aspeed and Nuvoton boards
hw/core/loader: Remove declarations of option_rom_has_mr/rom_file_has_mr
tests/avocado/machine_aspeed.py: Mask systemd services to speed up SDK boot
tests/avocado/machine_aspeed.py: update buildroot tests
m25p80: Add the is25wp256 SFPD table
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In this try
- rebase to latest upstream
- same than previous patch
- fix compilation on non linux (userfaultfd.h) (me)
- query-migrationthreads (jiang)
- fix race on reading MultiFDPages_t.block (zhenzhong)
- fix flush of zero copy page send reuest (zhenzhong)
Please apply.
Previous try:
It includes:
- David Hildenbrand fixes for virtio-men
- David Gilbert canary to detect problems
- Fix for rdma return values (Fiona)
- Peter Xu uffd_open fixes
- Peter Xu show right downtime for postcopy
- manish.mishra msg fix fixes
- my vfio changes.
Please apply.
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Merge tag 'migration-20230206-pull-request' of https://gitlab.com/juan.quintela/qemu into staging
Migration Pull request
In this try
- rebase to latest upstream
- same than previous patch
- fix compilation on non linux (userfaultfd.h) (me)
- query-migrationthreads (jiang)
- fix race on reading MultiFDPages_t.block (zhenzhong)
- fix flush of zero copy page send reuest (zhenzhong)
Please apply.
Previous try:
It includes:
- David Hildenbrand fixes for virtio-men
- David Gilbert canary to detect problems
- Fix for rdma return values (Fiona)
- Peter Xu uffd_open fixes
- Peter Xu show right downtime for postcopy
- manish.mishra msg fix fixes
- my vfio changes.
Please apply.
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# gpg: Signature made Tue 07 Feb 2023 00:56:22 GMT
# gpg: using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg: aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03 4B82 F487 EF18 5872 D723
* tag 'migration-20230206-pull-request' of https://gitlab.com/juan.quintela/qemu: (30 commits)
migration: save/delete migration thread info
migration: Introduce interface query-migrationthreads
multifd: Fix flush of zero copy page send request
multifd: Fix a race on reading MultiFDPages_t.block
migration: check magic value for deciding the mapping of channels
io: Add support for MSG_PEEK for socket channel
migration/dirtyrate: Show sample pages only in page-sampling mode
migration: Perform vmsd structure check during tests
migration: Add canary to VMSTATE_END_OF_LIST
migration/rdma: fix return value for qio_channel_rdma_{readv,writev}
migration: Show downtime during postcopy phase
virtio-mem: Proper support for preallocation with migration
virtio-mem: Migrate immutable properties early
virtio-mem: Fail if a memory backend with "prealloc=on" is specified
migration/ram: Factor out check for advised postcopy
migration/vmstate: Introduce VMSTATE_WITH_TMP_TEST() and VMSTATE_BITMAP_TEST()
migration/savevm: Allow immutable device state to be migrated early (i.e., before RAM)
migration/savevm: Prepare vmdesc json writer in qemu_savevm_state_setup()
migration/savevm: Move more savevm handling into vmstate_save()
migration/ram: Optimize ram_write_tracking_start() for RamDiscardManager
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The model includes aspeed_scu.h but doesn't appear to require it.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124062022.298230-1-joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This SoC uses a Cortex-M4F. QEMU only implements a M4,
which is good enough. Add a TODO note in case the M4F
is added.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Some SRAM appears to be used by the Secure Boot unit and
crypto accelerators. Name it 'secure sram'.
Note, the SRAM base address was already present but unused
(the 'SBC' index is used for the MMIO peripheral).
Interestingly using CFLAGS=-Winitializer-overrides reports:
../hw/arm/aspeed_ast10x0.c:32:30: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[ASPEED_DEV_SBC] = 0x7E6F2000,
^~~~~~~~~~
../hw/arm/aspeed_ast10x0.c:24:30: note: previous initialization is here
[ASPEED_DEV_SBC] = 0x79000000,
^~~~~~~~~~
This fixes with Zephyr:
uart:~$ rsa test
rsa test vector[0]:
[00:00:26.156,000] <err> os: ***** BUS FAULT *****
[00:00:26.157,000] <err> os: Precise data bus error
[00:00:26.157,000] <err> os: BFAR Address: 0x79000000
[00:00:26.158,000] <err> os: r0/a1: 0x79000000 r1/a2: 0x00000000 r2/a3: 0x00001800
[00:00:26.158,000] <err> os: r3/a4: 0x79001800 r12/ip: 0x00000800 r14/lr: 0x0001098d
[00:00:26.158,000] <err> os: xpsr: 0x81000000
[00:00:26.158,000] <err> os: Faulting instruction address (r15/pc): 0x0001e1bc
[00:00:26.158,000] <err> os: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
[00:00:26.158,000] <err> os: Current thread: 0x38248 (shell_uart)
[00:00:26.165,000] <err> os: Halting system
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
[ clg: Fixed size of Secure Boot Controller Memory ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Since I don't have access to the datasheet, the relevant
values were found in:
https://github.com/AspeedTech-BMC/zephyr/blob/v00.01.08/dts/arm/aspeed/ast10x0.dtsi
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Add more Aspeed watchdog registers from [*].
Since guests can righteously access them, log the access at
'unimplemented' level instead of 'guest-errors'.
[*] https://github.com/AspeedTech-BMC/zephyr/blob/v00.01.08/drivers/watchdog/wdt_aspeed.c#L31
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Avoid confusing two different things:
- the WDT I/O region size ('iosize')
- at which offset the SoC map the WDT ('offset')
While it is often the same, we can map smaller region sizes
at larger offsets.
Here we are interested in the I/O region size, so rename as
'iosize'.
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[ clg: Introduced temporary wdt_offset variable ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
EEPROM's are a form of non-volatile memory. After power-cycling an EEPROM,
I would expect the I2C state machine to be reset to default values, but I
wouldn't really expect the memory to change at all.
The current implementation of the at24c EEPROM resets its internal memory on
reset. This matches the specification in docs/devel/reset.rst:
Cold reset is supported by every resettable object. In QEMU, it means we reset
to the initial state corresponding to the start of QEMU; this might differ
from what is a real hardware cold reset. It differs from other resets (like
warm or bus resets) which may keep certain parts untouched.
But differs from my intuition. For example, if someone writes some information
to an EEPROM, then AC power cycles their board, they would expect the EEPROM to
retain that information. It's very useful to be able to test things like this
in QEMU as well, to verify software instrumentation like determining the cause
of a reboot.
Fixes: 5d8424dbd3 ("nvram: add AT24Cx i2c eeprom")
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://lore.kernel.org/r/20230128060543.95582-6-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
- Create aspeed_eeprom.c and aspeed_eeprom.h
- Include aspeed_eeprom.c in CONFIG_ASPEED meson source files
- Include aspeed_eeprom.h in aspeed.c
- Add fby35_bmc_fruid data
- Use new at24c_eeprom_init_rom helper to initialize BMC FRUID EEPROM with data
from aspeed_eeprom.c
wget https://github.com/facebook/openbmc/releases/download/openbmc-e2294ff5d31d/fby35.mtd
qemu-system-aarch64 -machine fby35-bmc -nographic -mtdblock fby35.mtd
...
user: root
pass: 0penBmc
...
root@bmc-oob:~# fruid-util bb
FRU Information : Baseboard
--------------- : ------------------
Chassis Type : Rack Mount Chassis
Chassis Part Number : N/A
Chassis Serial Number : N/A
Board Mfg Date : Fri Jan 7 10:30:00 2022
Board Mfg : XXXXXX
Board Product : Management Board wBMC
Board Serial : XXXXXXXXXXXXX
Board Part Number : XXXXXXXXXXXXXX
Board FRU ID : 1.0
Board Custom Data 1 : XXXXXXXXX
Board Custom Data 2 : XXXXXXXXXXXXXXXXXX
Product Manufacturer : XXXXXX
Product Name : Yosemite V3.5 EVT2
Product Part Number : XXXXXXXXXXXXXX
Product Version : EVT2
Product Serial : XXXXXXXXXXXXX
Product Asset Tag : XXXXXXX
Product FRU ID : 1.0
Product Custom Data 1 : XXXXXXXXX
Product Custom Data 2 : N/A
root@bmc-oob:~# fruid-util bmc
FRU Information : BMC
--------------- : ------------------
Board Mfg Date : Mon Jan 10 21:42:00 2022
Board Mfg : XXXXXX
Board Product : BMC Storage Module
Board Serial : XXXXXXXXXXXXX
Board Part Number : XXXXXXXXXXXXXX
Board FRU ID : 1.0
Board Custom Data 1 : XXXXXXXXX
Board Custom Data 2 : XXXXXXXXXXXXXXXXXX
Product Manufacturer : XXXXXX
Product Name : Yosemite V3.5 EVT2
Product Part Number : XXXXXXXXXXXXXX
Product Version : EVT2
Product Serial : XXXXXXXXXXXXX
Product Asset Tag : XXXXXXX
Product FRU ID : 1.0
Product Custom Data 1 : XXXXXXXXX
Product Custom Data 2 : Config A
root@bmc-oob:~# fruid-util nic
FRU Information : NIC
--------------- : ------------------
Board Mfg Date : Tue Nov 2 08:51:00 2021
Board Mfg : XXXXXXXX
Board Product : Mellanox ConnectX-6 DX OCP3.0
Board Serial : XXXXXXXXXXXXXXXXXXXXXXXX
Board Part Number : XXXXXXXXXXXXXXXXXXXXX
Board FRU ID : FRU Ver 0.02
Product Manufacturer : XXXXXXXX
Product Name : Mellanox ConnectX-6 DX OCP3.0
Product Part Number : XXXXXXXXXXXXXXXXXXXXX
Product Version : A9
Product Serial : XXXXXXXXXXXXXXXXXXXXXXXX
Product Custom Data 3 : ConnectX-6 DX
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://lore.kernel.org/r/20230128060543.95582-5-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Allows users to specify binary data to initialize an EEPROM, allowing users to
emulate data programmed at manufacturing time.
- Added init_rom and init_rom_size attributes to TYPE_AT24C_EE
- Added at24c_eeprom_init_rom helper function to initialize attributes
- If -drive property is provided, it overrides init_rom data
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Ninad Palsule <ninadpalsule@us.ibm.com>
Link: https://lore.kernel.org/r/20230128060543.95582-4-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
aspeed_eeprom_init is an exact copy of at24c_eeprom_init, not needed.
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://lore.kernel.org/r/20230128060543.95582-3-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This helper is useful in board initialization because lets users initialize and
realize an EEPROM on an I2C bus with a single function call.
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Link: https://lore.kernel.org/r/20230128060543.95582-2-peter@pjd.dev
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Generated from hardware using the following command and then padding
with 0xff to fill out a power-of-2:
xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp
Cc: Michael Walle <michael@walle.cc>
Cc: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20221221122213.1458540-1-linux@roeck-us.net>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
With the `size += 4` before the call to `crc32`, the CRC calculation
would overrun the buffer. Size is used in the while loop starting on
line 1009 to determine how much data to write back, with the last
four bytes coming from `crc_ptr`, so do need to increase it, but should
do this after the computation.
I'm unsure why this use of uninitialized memory in the CRC doesn't
result in CRC errors, but it seems clear to me that it should not be
included in the calculation.
Signed-off-by: Stephen Longfield <slongfield@google.com>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20221220221437.3303721-1-slongfield@google.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
supermicrox11-bmc is configured with ast2400-a1 SoC. This does not match
the Supermicro documentation for X11 BMCs, and it does not match the
devicetree file in the Linux kernel.
As it turns out, some Supermicro X11 motherboards use AST2400 SoCs,
while others use AST2500.
Introduce new machine type supermicrox11-spi-bmc with AST2500 SoC
to match the devicetree description in the Linux kernel. Hardware
configuration details for this machine type are guesswork and taken
from defaults as well as from the Linux kernel devicetree file.
The new machine type was tested with aspeed-bmc-supermicro-x11spi.dts
from the Linux kernel and with Linux versions 6.0.3 and 6.1-rc2.
Linux booted successfully from initrd and from both SPI interfaces.
Ethernet interfaces were confirmed to be operational.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20221025165109.1226001-1-linux@roeck-us.net
[ clg: Renamed machine to 'supermicro-x11spi-bmc' ]
Message-Id: <20221025165109.1226001-1-linux@roeck-us.net>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
The M2S-FG484 SOM uses a 16 MiB SPI flash (Spansion
S25FL128SDPBHICO). Since the test asset is bigger,
truncate it to the correct size to avoid when running
the test_arm_emcraft_sf2 test:
qemu-system-arm: device requires 16777216 bytes, block backend provides 67108864 bytes
Add comment regarding the M2S-FG484 SOM hardware in
hw/arm/msf2-som.c.
Reported-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
There is no need to declare an intermediate "MachineState *ms".
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230206085007.3618715-1-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
As it is now, riscv_compute_fdt_addr() is receiving a dram_base, a
mem_size (which is defaulted to MachineState::ram_size in all boards)
and the FDT pointer. And it makes a very important assumption: the DRAM
interval dram_base + mem_size is contiguous. This is indeed the case for
most boards that use a FDT.
The Icicle Kit board works with 2 distinct RAM banks that are separated
by a gap. We have a lower bank with 1GiB size, a gap follows, then at
64GiB the high memory starts. MachineClass::default_ram_size for this
board is set to 1.5Gb, and machine_init() is enforcing it as minimal RAM
size, meaning that there we'll always have at least 512 MiB in the Hi
RAM area.
Using riscv_compute_fdt_addr() in this board is weird because not only
the board has sparse RAM, and it's calling it using the base address of
the Lo RAM area, but it's also using a mem_size that we have guarantees
that it will go up to the Hi RAM. All the function assumptions doesn't
work for this board.
In fact, what makes the function works at all in this case is a
coincidence. Commit 1a475d39ef introduced a 3GB boundary for the FDT,
down from 4Gb, that is enforced if dram_base is lower than 3072 MiB. For
the Icicle Kit board, memmap[MICROCHIP_PFSOC_DRAM_LO].base is 0x80000000
(2 Gb) and it has a 1Gb size, so it will fall in the conditions to put
the FDT under a 3Gb address, which happens to be exactly at the end of
DRAM_LO. If the base address of the Lo area started later than 3Gb this
function would be unusable by the board. Changing any assumptions inside
riscv_compute_fdt_addr() can also break it by accident as well.
Let's change riscv_compute_fdt_addr() semantics to be appropriate to the
Icicle Kit board and for future boards that might have sparse RAM
topologies to worry about:
- relieve the condition that the dram_base + mem_size area is contiguous,
since this is already not the case today;
- receive an extra 'dram_size' size attribute that refers to a contiguous
RAM block that the board wants the FDT to reside on.
Together with 'mem_size' and 'fdt', which are now now being consumed by a
MachineState pointer, we're able to make clear assumptions based on the
DRAM block and total mem_size available to ensure that the FDT will be put
in a valid RAM address.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230201171212.1219375-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
A common trend in other archs is to calculate the fdt address, which is
usually straightforward, and then calling a function that loads the
fdt/dtb by using that address.
riscv_load_fdt() is doing a bit too much in comparison. It's calculating
the fdt address via an elaborated heuristic to put the FDT at the bottom
of DRAM, and "bottom of DRAM" will vary across boards and
configurations, then it's actually loading the fdt, and finally it's
returning the fdt address used to the caller.
Reduce the existing complexity of riscv_load_fdt() by splitting its code
into a new function, riscv_compute_fdt_addr(), that will take care of
all fdt address logic. riscv_load_fdt() can then be a simple function
that just loads a fdt at the given fdt address.
We're also taken the opportunity to clarify the intentions and
assumptions made by these functions. riscv_load_fdt() is now receiving a
hwaddr as fdt_addr because there is no restriction of having to load the
fdt in higher addresses that doesn't fit in an uint32_t.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230201171212.1219375-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
fdt_pack() can change the fdt size, meaning that fdt_totalsize() can
contain a now deprecated (bigger) value.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230201171212.1219375-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Follow the QEMU convention of naming MachineState pointers as 'ms' by
renaming the instances where we're calling it 'mc'.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230124212234.412630-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We have a convention in other QEMU boards/archs to name MachineState
pointers as either 'machine' or 'ms'. MachineClass pointers are usually
called 'mc'.
The 'virt' RISC-V machine has a lot of instances where MachineState
pointers are named 'mc'. There is nothing wrong with that, but we gain
more compatibility with the rest of the QEMU code base, and easier
reviews, if we follow QEMU conventions.
Rename all 'mc' MachineState pointers to 'ms'. This is a very tedious
and mechanical patch that was produced by doing the following:
- find/replace all 'MachineState *mc' to 'MachineState *ms';
- find/replace all 'mc->fdt' to 'ms->fdt';
- find/replace all 'mc->smp.cpus' to 'ms->smp.cpus';
- replace any remaining occurrences of 'mc' that the compiler complained
about.
Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230124212234.412630-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
riscv_socket_count() returns either ms->numa_state->num_nodes or 1
depending on NUMA support. In any case the value can be retrieved only
once and used in the rest of the function.
This will also alleviate the rename we're going to do next by reducing
the instances of MachineState 'mc' inside hw/riscv/virt.c.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230124212234.412630-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If the CSRs and CSR instructions are disabled because the Zicsr
extension isn't enabled then we want to make sure we don't run any CSR
instructions in the boot ROM.
This patches removes the CSR instructions from the reset-vec if the
extension isn't enabled. We replace the instruction with a NOP instead.
Note that we don't do this for the SiFive U machine, as we are modelling
the hardware in that case.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1447
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230123035754.75553-1-alistair.francis@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Updates the opentitan IRQs to match the latest supported commit of
Opentitan from TockOS.
OPENTITAN_SUPPORTED_SHA := 565e4af39760a123c59a184aa2f5812a961fde47
Memory layout as per [1]
[1] 565e4af397/hw/top_earlgrey/sw/autogen/top_earlgrey_memory.h
Signed-off-by: Wilfred Mallawa <wilfred.mallawa@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230123063619.222459-1-wilfred.mallawa@opensource.wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Ordinary memory preallocation runs when QEMU starts up and creates the
memory backends, before processing the incoming migration stream. With
virtio-mem, we don't know which memory blocks to preallocate before
migration started. Now that we migrate the virtio-mem bitmap early, before
migrating any RAM content, we can safely preallocate memory for all plugged
memory blocks before migrating any RAM content.
This is especially relevant for the following cases:
(1) User errors
With hugetlb/files, if we don't have sufficient backend memory available on
the migration destination, we'll crash QEMU (SIGBUS) during RAM migration
when running out of backend memory. Preallocating memory before actual
RAM migration allows for failing gracefully and informing the user about
the setup problem.
(2) Excluded memory ranges during migration
For example, virtio-balloon free page hinting will exclude some pages
from getting migrated. In that case, we won't crash during RAM
migration, but later, when running the VM on the destination, which is
bad.
To fix this for new QEMU machines that migrate the bitmap early,
preallocate the memory early, before any RAM migration. Warn with old
QEMU machines.
Getting postcopy right is a bit tricky, but we essentially now implement
the same (problematic) preallocation logic as ordinary preallocation:
preallocate memory early and discard it again before precopy starts. During
ordinary preallocation, discarding of RAM happens when postcopy is advised.
As the state (bitmap) is loaded after postcopy was advised but before
postcopy starts listening, we have to discard memory we preallocated
immediately again ourselves.
Note that nothing (not even hugetlb reservations) guarantees for postcopy
that backend memory (especially, hugetlb pages) are still free after they
were freed ones while discarding RAM. Still, allocating that memory at
least once helps catching some basic setup problems.
Before this change, trying to restore a VM when insufficient hugetlb
pages are around results in the process crashing to to a "Bus error"
(SIGBUS). With this change, QEMU fails gracefully:
qemu-system-x86_64: qemu_prealloc_mem: preallocating memory failed: Bad address
qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:03.0/virtio-mem-device-early'
qemu-system-x86_64: load of migration failed: Cannot allocate memory
And we can even introspect the early migration data, including the
bitmap:
$ ./scripts/analyze-migration.py -f STATEFILE
{
"ram (2)": {
"section sizes": {
"0000:00:03.0/mem0": "0x0000000780000000",
"0000:00:04.0/mem1": "0x0000000780000000",
"pc.ram": "0x0000000100000000",
"/rom@etc/acpi/tables": "0x0000000000020000",
"pc.bios": "0x0000000000040000",
"0000:00:02.0/e1000.rom": "0x0000000000040000",
"pc.rom": "0x0000000000020000",
"/rom@etc/table-loader": "0x0000000000001000",
"/rom@etc/acpi/rsdp": "0x0000000000001000"
}
},
"0000:00:03.0/virtio-mem-device-early (51)": {
"tmp": "00 00 00 01 40 00 00 00 00 00 00 07 80 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00",
"size": "0x0000000040000000",
"bitmap": "ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [...]
},
"0000:00:04.0/virtio-mem-device-early (53)": {
"tmp": "00 00 00 08 c0 00 00 00 00 00 00 07 80 00 00 00 00 00 00 00 00 20 00 00 00 00 00 00",
"size": "0x00000001fa400000",
"bitmap": "ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [...]
},
[...]
Reported-by: Jing Qi <jinqi@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>S
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
The bitmap and the size are immutable while migration is active: see
virtio_mem_is_busy(). We can migrate this information early, before
migrating any actual RAM content. Further, all information we need for
sanity checks is immutable as well.
Having this information in place early will, for example, allow for
properly preallocating memory before touching these memory locations
during RAM migration: this way, we can make sure that all memory was
actually preallocated and that any user errors (e.g., insufficient
hugetlb pages) can be handled gracefully.
In contrast, usable_region_size and requested_size can theoretically
still be modified on the source while the VM is running. Keep migrating
these properties the usual, late, way.
Use a new device property to keep behavior of compat machines
unmodified.
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>S
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
"prealloc=on" for the memory backend does not work as expected, as
virtio-mem will simply discard all preallocated memory immediately again.
In the best case, it's an expensive NOP. In the worst case, it's an
unexpected allocation error.
Instead, "prealloc=on" should be specified for the virtio-mem device only,
such that virtio-mem will try preallocating memory before plugging
memory dynamically to the guest. Fail if such a memory backend is
provided.
Tested-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>S
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Until previous commit, save_live_pending() was used for ram. Now with
the split into state_pending_estimate() and state_pending_exact() it
is not needed anymore, so remove them.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
We split the function into to:
- state_pending_estimate: We estimate the remaining state size without
stopping the machine.
- state pending_exact: We calculate the exact amount of remaining
state.
The only "device" that implements different functions for _estimate()
and _exact() is ram.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Add a way to set a backing store for the mac_nvram. Use -drive
file=nvram.img,format=raw,if=mtd to specify backing file where
nvram.img must be MACIO_NVRAM_SIZE which is 8192 bytes.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <1aadee8f0ca0f56cf1b7c45c3944676a07d91de9.1675297286.git.balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Add a way to set a backing store for the mac_nvram similar to what
spapr_nvram or mac_via PRAM already does to allow to save its contents
between runs.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <4b1605a9e484cc95f6e141f297487a070fd418ac.1675297286.git.balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
