Commit Graph

85140 Commits

Author SHA1 Message Date
Mark Cave-Ayland
3c421400ff esp: use in-built TC to determine PDMA transfer length
Real hardware simply counts down using the in-built TC to determine when the
the PDMA request is complete. Use the TC to determine the PDMA transfer length
which then enables us to remove the redundant pdma_len variable.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-25-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
ad7f468c42 esp: use ti_wptr/ti_rptr to manage the current FIFO position for PDMA
This eliminates the last user of the PDMA-specific pdma_cur variable which can
now be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-24-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
93efe2e624 esp: move PDMA length adjustments into esp_pdma_read()/esp_pdma_write()
Here the updates to async_len and ti_size are moved into the corresponding
esp_pdma_read()/esp_pdma_write() function to eliminate the reference to
pdma_cur in do_dma_pdma_cb().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-23-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
2c573cfe19 esp: remove redundant pdma_start from ESPState
Now that PDMA SCSI commands are accumulated in cmdbuf in the same way as normal
commands, the existing logic for locating the start of the SCSI command in
cmdbuf via cmdlen can be used. This enables the PDMA-specific pdma_start and
also get_pdma_buf() to be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-22-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
cfcea0f9d7 esp: remove the buf and buflen parameters from get_cmd()
Now that all SCSI commands are accumulated in cmdbuf, remove the buf and buflen
parameters from get_cmd() since these always reference cmdbuf and ESP_CMDBUF_SZ
respectively.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-21-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
c959f21843 esp: remove buf parameter from do_cmd()
Now that all SCSI commands are accumulated in cmdbuf, remove the buf parameter
from do_cmd() since this always points to cmdbuf.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-20-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
bb0bc7bbc9 esp: accumulate SCSI commands for PDMA transfers in cmdbuf instead of pdma_buf
ESP SCSI commands are already accumulated in cmdbuf and so there is no need to
keep a separate pdma_buf buffer. Accumulate SCSI commands for PDMA transfers in
cmdbuf instead of pdma_buf so update cmdlen accordingly and change pdma_origin
for PDMA transfers to CMD which allows the PDMA origin to be removed.

This commit also removes a stray memcpy() from get_cmd() which is a no-op because
cmdlen is always zero at the start of a command.

Notionally the removal of pdma_buf from vmstate_esp_pdma also breaks migration
compatibility for the PDMA subsection until its complete removal by the end of
the series.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-19-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
8da90e8194 esp: move pdma_len and TC logic into esp_pdma_read()/esp_pdma_write()
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-18-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
6e3fafa8bb esp: use pdma_origin directly in esp_pdma_read()/esp_pdma_write()
This is the first step in removing get_pdma_buf() from esp.c.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-17-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
761bef75dd esp: introduce esp_pdma_read() and esp_pdma_write() functions
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-16-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
b76624de50 esp: remove minlen restriction in handle_ti
The limiting of DMA transfers to the maximum size of the available data is already
handled by esp_do_dma() and do_dma_pdma_cb().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-15-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
6cc88d6bf9 esp: remove dma_left from ESPState
The ESP device already keeps track of the remaining bytes left to transfer via
its TC (transfer counter) register which is decremented for each byte that
is transferred across the SCSI bus.

Switch the transfer logic to use the value of TC instead of dma_left and then
remove dma_left completely, adding logic to the vmstate_esp post_load() function
to transfer the old dma_left value to the TC register during migration from
older versions.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-14-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
5eb7a23fb2 esp: remove dma_counter from ESPState
The value of dma_counter is set once at the start of the transfer and remains
the same until the transfer is complete. This allows the check in esp_transfer_data
to be simplified since dma_left will always be non-zero until the transfer is
completed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-13-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
96676c2f74 esp: apply transfer length adjustment when STC is zero at TC load time
Perform the length adjustment whereby a value of 0 in the STC represents
a transfer length of 0x10000 at the point where the TC is loaded at the
start of a DMA command rather than just when a TI (Transfer Information)
command is executed. This better matches the description as given in the
datasheet.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-12-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
c04ed569b0 esp: introduce esp_get_stc()
This function simplifies reading the STC register value without having to manually
shift each individual 8-bit value.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-11-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
c47b5835f5 esp: introduce esp_get_tc() and esp_set_tc()
These functions simplify reading and writing the TC register value without having to
manually shift each individual 8-bit value.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-10-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
4ca2ba6fb0 esp: determine transfer direction directly from SCSI phase
The transfer direction is currently determined by checking the sign of ti_size
but as this series progresses ti_size can be zero at the end of the transfer.

Use the SCSI phase to determine the transfer direction as used in other SCSI
controller implementations.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-9-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
960ebfd94e esp: add PDMA trace events
This will become more useful later when trying to debug mixed FIFO and PDMA
requests.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-8-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
b630c075a2 esp: fix esp_reg_read() trace event
Move the trace event to the end of the function so that it correctly reports
the returned value if it doesn't come directly from the rregs array.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-7-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
0097d3ec17 esp: add trace event when receiving a TI command
This enables us to determine whether the command being issued is for a DMA or a
non-DMA transfer.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-6-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
0bd005be78 esp: add vmstate_esp version to embedded ESPState
The QOM object representing ESPState is currently embedded within both the
SYSBUS_ESP and PCI_ESP devices with migration state handled by embedding
vmstate_esp within each device using VMSTATE_STRUCT.

Since the vmstate_esp fields are embedded directly within the migration
stream, the incoming vmstate_esp version_id is lost. The only version information
available is that from vmstate_sysbus_esp_scsi and vmstate_esp_pci_scsi, but
those versions represent their respective devices and not that of the underlying
ESPState.

Resolve this by adding a new version-dependent field in vmstate_sysbus_esp_scsi
and vmstate_esp_pci_scsi which stores the vmstate_esp version_id field within
ESPState to be used to allow migration from older QEMU versions.

Finally bump the vmstate_esp version to 5 to cover the upcoming ESPState changes
within this patch series.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-5-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
eb169c76d0 esp: QOMify the internal ESP device state
Make this new QOM device state a child device of both the sysbus-esp and esp-pci
implementations.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-4-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
84fbefedfe esp: rename existing ESP QOM type to SYSBUS_ESP
The existing ESP QOM type currently represents a sysbus device with an embedded
ESP state. Rename the type to SYSBUS_ESP accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-3-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Mark Cave-Ayland
94d5c79d32 esp: checkpatch fixes
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20210304221103.6369-2-mark.cave-ayland@ilande.co.uk>
2021-03-07 10:39:05 +00:00
Peter Maydell
91e92cad67 some accumulated s390x fixes
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Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20210305' into staging

some accumulated s390x fixes

# gpg: Signature made Fri 05 Mar 2021 15:50:00 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck-gitlab/tags/s390x-20210305:
  target/s390x/kvm: Simplify debug code
  vfio-ccw: Do not read region ret_code after write
  css: SCHIB measurement block origin must be aligned
  virtio-ccw: commands on revision-less devices
  s390x/pci: restore missing Query PCI Function CLP data
  hw/s390x: fix build for virtio-9p-ccw
  target/s390x/arch_dump: Fix warning for the name field in the PT_NOTE section
  s390x/cpu_model: disallow unpack for --only-migratable

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-05 19:04:47 +00:00
Peter Maydell
bb736b20a3 QAPI patches patches for 2021-03-05
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-03-05' into staging

QAPI patches patches for 2021-03-05

# gpg: Signature made Fri 05 Mar 2021 14:42:18 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2021-03-05:
  qapi: Fix parse errors for removal of null from schema language
  qapi: Remove QMP events and commands from user-mode builds
  qga: Utilize QAPI_LIST_APPEND in qmp_guest_network_get_interfaces
  error: Fix "Converting to ERRP_GUARD()" doc on "valid at return"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-05 15:15:32 +00:00
Markus Armbruster
0e92a19b8c qapi: Fix parse errors for removal of null from schema language
Commit 9d55380b5a "qapi: Remove null from schema language" (v4.2.0)
neglected to update two error messages.  Do that now.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210224101442.1837475-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2021-03-05 15:40:50 +01:00
Philippe Mathieu-Daudé
a0e61807a3 qapi: Remove QMP events and commands from user-mode builds
We removed the QMP loop in user-mode builds in commit 1935e0e4e0
("qapi/meson: Remove QMP from user-mode emulation"), now commands
and events code is unreachable.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210224171642.3242293-1-philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2021-03-05 15:40:49 +01:00
Eric Blake
96291f1343 qga: Utilize QAPI_LIST_APPEND in qmp_guest_network_get_interfaces
I found another spot that can benefit from using our macros instead of
open-coding qapi list creation.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210205171634.1491258-1-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2021-03-05 15:40:49 +01:00
Markus Armbruster
d71a243220 error: Fix "Converting to ERRP_GUARD()" doc on "valid at return"
Setting errp = NULL is wrong: the automatic error propagation still
propagates the dangling pointer _auto_errp_prop.local_err.  We need to
set *errp = NULL to clear the dangling pointer.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210125132635.1253219-1-armbru@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-03-05 15:40:42 +01:00
Peter Maydell
9a7beaad3d RISC-V PR for 6.0
This PR is a collection of RISC-V patches:
  - Improvements to SiFive U OTP
  - Upgrade OpenSBI to v0.9
  - Support the QMP dump-guest-memory
  - Add support for the SiFive SPI controller (sifive_u)
  - Initial RISC-V system documentation
  - A fix for the Goldfish RTC
  - MAINTAINERS updates
  - Support for high PCIe memory in the virt machine
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Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20210304' into staging

RISC-V PR for 6.0

This PR is a collection of RISC-V patches:
 - Improvements to SiFive U OTP
 - Upgrade OpenSBI to v0.9
 - Support the QMP dump-guest-memory
 - Add support for the SiFive SPI controller (sifive_u)
 - Initial RISC-V system documentation
 - A fix for the Goldfish RTC
 - MAINTAINERS updates
 - Support for high PCIe memory in the virt machine

# gpg: Signature made Thu 04 Mar 2021 14:44:31 GMT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20210304:
  hw/riscv: virt: Map high mmio for PCIe
  hw/riscv: virt: Limit RAM size in a 32-bit system
  hw/riscv: virt: Drop the 'link_up' parameter of gpex_pcie_init()
  hw/riscv: Drop 'struct MemmapEntry'
  MAINTAINERS: Add a SiFive machine section
  goldfish_rtc: re-arm the alarm after migration
  docs/system: riscv: Add documentation for sifive_u machine
  docs/system: Add RISC-V documentation
  docs/system: Sort targets in alphabetical order
  hw/riscv: sifive_u: Change SIFIVE_U_GEM_IRQ to decimal value
  hw/riscv: sifive_u: Add QSPI2 controller and connect an SD card
  hw/riscv: sifive_u: Add QSPI0 controller and connect a flash
  hw/ssi: Add SiFive SPI controller support
  hw/block: m25p80: Add various ISSI flash information
  hw/block: m25p80: Add ISSI SPI flash support
  target-riscv: support QMP dump-guest-memory
  roms/opensbi: Upgrade from v0.8 to v0.9
  hw/misc: sifive_u_otp: Use error_report() when block operation fails
  target/riscv: Declare csr_ops[] with a known size

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-05 10:47:46 +00:00
Bin Meng
19800265d4 hw/riscv: virt: Map high mmio for PCIe
Some peripherals require 64-bit PCI address, so let's map the high
mmio space for PCIe.

For RV32, the address is hardcoded to below 4 GiB from the highest
accessible physical address. For RV64, the base address depends on
top of RAM and is aligned to its size which is using 16 GiB for now.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210220144807.819-5-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
cfeb8a17c8 hw/riscv: virt: Limit RAM size in a 32-bit system
RV32 supports 34-bit physical address hence the maximum RAM size
should be limited. Limit the RAM size to 10 GiB, which leaves
some room for PCIe high mmio space.

For 32-bit host, this is not needed as machine->ram_size cannot
represent a RAM size that big. Use a #if size test to only do
the size limitation for the 64-bit host.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210220144807.819-4-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
2fa3c7b6ee hw/riscv: virt: Drop the 'link_up' parameter of gpex_pcie_init()
`link_up` is never used in gpex_pcie_init(). Drop it.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210220144807.819-3-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
732612856a hw/riscv: Drop 'struct MemmapEntry'
There is already a MemMapEntry type defined in hwaddr.h. Let's drop
the RISC-V defined `struct MemmapEntry` and use the existing one.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210220144807.819-2-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Alistair Francis
4fcad93156 MAINTAINERS: Add a SiFive machine section
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bin.meng@windriver.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Message-id: 6bc077e5ae4a9512c8adf81ae194718f2f17c402.1612836645.git.alistair.francis@wdc.com
2021-03-04 09:43:29 -05:00
Laurent Vivier
6b9409ba5f goldfish_rtc: re-arm the alarm after migration
After a migration the clock offset is updated, but we also
need to re-arm the alarm if needed.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201220112615.933036-7-laurent@vivier.eu
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
01153d2b60 docs/system: riscv: Add documentation for sifive_u machine
This adds detailed documentation for RISC-V `sifive_u` machine,
including the following information:

- Supported devices
- Hardware configuration information
- Boot options
- Machine-specific options
- Running Linux kernel
- Running VxWorks kernel
- Running U-Boot, and with an alternate configuration

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Message-id: 20210126060007.12904-10-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
d6d9896814 docs/system: Add RISC-V documentation
Add RISC-V system emulator documentation for generic information.
`Board-specific documentation` and `RISC-V CPU features` are only
a placeholder and will be added in the future.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-9-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
1921e4276d docs/system: Sort targets in alphabetical order
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-8-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
8e3c886870 hw/riscv: sifive_u: Change SIFIVE_U_GEM_IRQ to decimal value
All other peripherals' IRQs are in the format of decimal value.
Change SIFIVE_U_GEM_IRQ to be consistent.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-7-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
722f1352b6 hw/riscv: sifive_u: Add QSPI2 controller and connect an SD card
This adds the QSPI2 controller to the SoC, and connects an SD
card to it. The generation of corresponding device tree source
fragment is also added.

Specify machine property `msel` to 11 to boot the same upstream
U-Boot SPL and payload image for the SiFive HiFive Unleashed board.
Note subsequent payload is stored in the SD card image.

$ qemu-system-riscv64 -nographic -M sifive_u,msel=11 -smp 5 -m 8G \
    -bios u-boot-spl.bin -drive file=sdcard.img,if=sd

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-6-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
145b299139 hw/riscv: sifive_u: Add QSPI0 controller and connect a flash
This adds the QSPI0 controller to the SoC, and connects an ISSI
25WP256 flash to it. The generation of corresponding device tree
source fragment is also added.

Since the direct memory-mapped mode is not supported by the SiFive
SPI model, the <reg> property does not populate the second group
which represents the memory mapped address of the SPI flash.

With this commit, upstream U-Boot for the SiFive HiFive Unleashed
board can boot on QEMU 'sifive_u' out of the box. This allows users
to develop and test the recommended RISC-V boot flow with a real
world use case: ZSBL (in QEMU) loads U-Boot SPL from SPI flash to
L2LIM, then U-Boot SPL loads the payload from SPI flash that is
combined with OpenSBI fw_dynamic firmware and U-Boot proper.

Specify machine property `msel` to 6 to allow booting from the SPI
flash. U-Boot spl is directly loaded via `-bios`, and subsequent
payload is stored in the SPI flash image. Example command line:

$ qemu-system-riscv64 -nographic -M sifive_u,msel=6 -smp 5 -m 8G \
    -bios u-boot-spl.bin -drive file=spi-nor.img,if=mtd

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-5-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
0694dabe97 hw/ssi: Add SiFive SPI controller support
This adds the SiFive SPI controller model for the FU540 SoC.
The direct memory-mapped SPI flash mode is unsupported.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-4-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
62d1076678 hw/block: m25p80: Add various ISSI flash information
This updates the flash information table to include various ISSI
flashes that are supported by upstream U-Boot and Linux kernel.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-3-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
10509e1095 hw/block: m25p80: Add ISSI SPI flash support
This adds the ISSI SPI flash support. The number of dummy cycles in
fast read, fast read dual output and fast read quad output commands
is currently using the default 8. Likewise, the same default value
is used for fast read dual/quad I/O command. Per the datasheet [1],
the number of dummy cycles is configurable, but this is not modeled
at present.

For flash whose size is larger than 16 MiB, the sequence of 3-byte
address along with EXTADD bit in the bank address register (BAR) is
not supported. We assume that guest software always uses op codes
with 4-byte address sequence. Fortunately, this is the case for both
U-Boot and Linux spi-nor drivers.

QPI (Quad Peripheral Interface) that supports 2-cycle instruction
has different default values for dummy cycles of fast read family
commands, and is unsupported at the time being.

[1] http://www.issi.com/WW/pdf/25LP-WP256.pdf

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210126060007.12904-2-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Yifei Jiang
43a9658889 target-riscv: support QMP dump-guest-memory
Add the support needed for creating prstatus elf notes. This allows
us to use QMP dump-guest-memory.

Now ELF notes of RISC-V only contain prstatus elf notes.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Mingwang Li <limingwang@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Message-id: 20210201124458.1248-2-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
454d1e7cf2 roms/opensbi: Upgrade from v0.8 to v0.9
Upgrade OpenSBI from v0.8 to v0.9 and the pre-built bios images.

The v0.9 release includes the following commits:

35bc810 docs/platform: Update QEMU parameter for fw_payload
78afe11 config.mk: Update QEMU run command for generic and sifive fu540 platforms
ec3e5b1 docs/platform: sifive_fu540: Update U-Boot instructions
7d61a68 README.md: fix markdown link formatting
a5f9104 lib/utils: fdt: Update FDT expand size to 1024 for reserved memory node
ec1abf6 include: sbi_bitops: Remove dead shift assignment in ffs/fls
8e47649 lib: Add sbi_strncmp implementation
2845d2d lib: utils: Add a macro in libfdt_env.h for strncmp
2cfd2fc lib: utils: Use strncmp in fdt_parse_hart_id()
937caee lib: sbi_misaligned_ldst: Determine transformed instruction length correctly
4b18a2a firmware: fw_base: Improve exception stack setup in trap handler
9d56961 lib: sbi_trap: Fix hstatus.SPVP update in sbi_trap_redirect()
d7f87d9 platform: kendryte/k210: fixup FDT
e435ba0 lib: sbi_init: Avoid thundering hurd problem with coldboot_lock
4f3bad6 lib: sbi: Handle the case where MTVAL has illegal instruction address
7b0b289 lib: sbi: Remove redundant SBI_HART_HAS_PMP feature
74d1db7 lib: sbi: Improve PMP CSR detection and progamming
2c341f7 lib: sbi: Detect and print MHPM counters at boot-time
162d453 include: sbi: Few cosmetic changes in riscv_encoding.h
ebc8ebc lib: sbi: Improve HPM CSR read/write emulation
dcb10c0 lib: sbi: Don't handle VS-mode ecall in sbi_trap_handler()
bef63d6 include: Rename ECALL defines to match latest RISC-V spec
c1c7c3e lib: sbi_trap: Allow M-mode to M-mode ECALLs
6734304 lib: sbi: Allow specifying start mode to sbi_hsm_hart_start() API
7ccf6bf lib: sbi: Allow specifying mode in sbi_hart_pmp_check_addr() API
9f935a4 lib: utils: Improve fdt_cpu_fixup() implementation
172fa16 lib: sbi: Ensure coldboot HART supports next privilege mode
aaeca7e platform: generic: Don't mark non-MMU HARTs as invalid
7701ea1 lib: sbi: Fix PMP CSR detection
79bf80b lib: sbi_scratch: typo scatch
a04c465 makefile: fix clean directive
af4b50f Makefile: Build ELF, BIN and LD script in platform build directory
6ca0969 firmware: Add common FW_FDT_PATH compile-time option
9c07c51 firmware: Remove FW_PAYLOAD_FDT_PATH compile-time option
e9a4bfb Makefile: Allow padding zeros when converting DTB to C source
a0f2d4a platform: kendryte/k210: Add some padding for FDT fixups
dbeeacb include: sbi: Remove redundant includes from sbi_platform.h
a12d46a include: sbi: Remove pmp_region callbacks from sbi_platform_operations
a126886 lib: sbi: Configure PMP late in coldboot and warmboot path
f81d6f6 lib: sbi: Remove redundant hartid parameter from sbi_hart_init()
8b65005 include: sbi: Make hartmask pointer const in sbi_hartmask_test_hart()
b1678af lib: sbi: Add initial domain support
e73b92d lib: sbi: Extend sbi_hsm_hart_started_mask() for domains
3a30d2c lib: sbi: Extend sbi_hsm_hart_start() for domains
530e95b lib: sbi: Optimize sbi_hsm_hart_started_mask() implementation
3e20037 lib: sbi: Extend sbi_system_reset() for domains
5edbb7c lib: utils: Update fdt_reserved_memory_fixup() to use current domain
5fd99db lib: utils: Update fdt_cpu_fixup() to use current domain
e856462 lib: sbi: Remove redundant sbi_hart_pmp_xyz() functions
c10c30b lib: sbi: Configure PMP based on domain memory regions
c347408 lib: sbi: Display domain details in boot prints
fdf5d5c docs: Add initial documentation for domain support
74c0ea1 lib: utils: Implement "ranges" property parsing
bf21632 lib: sbi: Detect PMP granularity and number of address bits
a809f40 lib: sbi: Improve boot time print with additional PMP information
914f81f Makefile: Add option to use toolchain default ABI and ISA string
48616b3 lib: sbi: Improve boot prints in cold boot sequence
781cafd docs: fix a typo error
54a7734 include: sbi: Add SBI SRST extension related defines
c4acc60 include: sbi: Remove opensbi specific reset type defines
da07479 platform: Remove dummy system reset functions
5c429ae lib: sbi: Improve system reset platform operations
548d03e lib: sbi: Implement System Reset (SRST) SBI extension
2677324 firmware: fw_base: Optimize trap handler for RV32 systems
8d2edc4 lib: sbi: Fix sbi_hart_switch_mode() for u-mode
3d921fa lib: sbi: Fix typo in sbi_domain_finalize()
4e37022 lib: sbi: Fix domain_count check in sbi_domain_finalize()
c709d40 lib: sbi: Auto start domain only if boot HART within limits
c1f6d89 include: sbi: Use lower bits for domain memory region permissions
62ea4f4 lib: sbi: Override domain boot HART when coldboot HART assigned to it
555e737 lib: sbi: Add error prints in sbi_domain_finalize()
9b65dca include: sbi: Add domains_init() platform operation
c0d2baa docs: Add domain device tree binding documentation
ba741ea lib: utils: Add helper routines to populate domains from FDT
4fffb53 platform: generic: Populate domains from FDT
e7da0b4 lib: utils/libfdt: Upgrade to v1.6.0 release
2179777 lib: utils: Allow FDT domain iteration functions to fail
7baccfc lib: sbi: Add function to register new domain
6fc1986 lib: utils: Remove fdt_domain_get() function
a029bd9 lib: sbi: Remove domain_get() platform callback function
7dcb1e1 lib: sbi: Fix sign-extension in sbi_misaligned_load_handler()
80bc506 lib: sbi: Replace args with trap registers in ecall handler
b7df5e4 lib: sbi: Introduce sbi_trap_exit() API
12394a2 lib: sbi: Allow custom local TLB flush function
0d49c3b lib: utils: Fix shakti uart implementation
db56341 lib: sbi: Allow platforms to provide root domain memory regions
e884416 include: sbi: No need to pack struct sbi_trap_regs
386eba2 include: sbi: No need to pack struct sbi_scratch
1bbf361 include: sbi: Don't pack struct sbi_platform and sbi_platform_operations
da5293f platform: template: Fix compile error
234ed8e include: Bump-up version to 0.9

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: 20210119234438.10132-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
a033d8008d hw/misc: sifive_u_otp: Use error_report() when block operation fails
At present when blk_pread() / blk_pwrite() fails, a guest error
is logged, but this is not really a guest error. Change to use
error_report() instead.

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: 1611026585-29971-1-git-send-email-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00
Bin Meng
6f03770dac target/riscv: Declare csr_ops[] with a known size
csr_ops[] is currently declared with an unknown size in cpu.h.
Since the array size is known, let's do a complete declaration.

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: 1611024723-14293-1-git-send-email-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-03-04 09:43:29 -05:00