Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
allow to enable or disable their SuperI/O functions. Add a convenience function
for implementing this in the VIA south bridges.
The naming of the functions is inspired by its memory_region_set_enabled()
pendant.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-7-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Some SuperI/O devices such as the VIA south bridges or the PC87312 controller
are able to relocate their SuperI/O functions. Add a convenience function for
implementing this in the VIA south bridges.
This convenience function relies on previous simplifications in exec/ioport
which avoids some duplicate synchronization of I/O port base addresses. The
naming of the function is inspired by its memory_region_set_address() pendant.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-6-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
portio_list_add_1() creates a MemoryRegionPortioList instance which holds a
MemoryRegion `mr` and an array of MemoryRegionPortio elements named `ports`.
Each element in the array gets assigned the same value for its .base attribute.
The same value also ends up as the .addr attribute of `mr` due to the
memory_region_add_subregion() call. This means that all .base attributes are
the same as `mr.addr`.
The only usages of MemoryRegionPortio::base were in portio_read() and
portio_write(). Both functions get above MemoryRegionPortioList as their
opaque parameter. In both cases find_portio() can only return one of the
MemoryRegionPortio elements of the `ports` array. Due to above observation any
element will have the same .base value equal to `mr.addr` which is also
accessible.
Hence, `mrpio->mr.addr` is equivalent to `mrp->base` and
MemoryRegionPortio::base is redundant and can be removed.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-5-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
ParallelState::portio_list isn't used inside ParallelState context but only
inside ISAParallelState context, so move it there.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20240114123911.4877-4-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
FDCtrl::iomem isn't used inside FDCtrl context but only inside FDCtrlSysBus
context, so move it there.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20240114123911.4877-3-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
FDCtrl::portio_list isn't used inside FDCtrl context but only inside
FDCtrlISABus context, so move it there.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <20240114123911.4877-2-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240106132546.21248-4-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
QEMU populates the apic_state attribute of x86 CPUs if supported by real
hardware or if SMP is active. When handling interrupts, it just checks whether
apic_state is populated to route the interrupt to the PIC or to the APIC.
However, chapter 10.4.3 of [1] requires that:
When IA32_APIC_BASE[11] is 0, the processor is functionally equivalent to an
IA-32 processor without an on-chip APIC.
This means that when apic_state is populated, QEMU needs to check for the
MSR_IA32_APICBASE_ENABLE flag in addition. Implement this which fixes some
real-world BIOSes.
[1] Intel 64 and IA-32 Architectures Software Developer's Manual, Vol. 3A:
System Programming Guide, Part 1
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240106132546.21248-3-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The if statement currently uses double negation when executing the else branch.
So swap the branches and simplify the condition to make the code more
comprehensible.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240106132546.21248-2-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit adds XTSup configuration to let user choose to whether enable
this feature or not. When XTSup is enabled, additional bytes in IRTE with
enabled guest virtual VAPIC are used to support 32-bit destination id.
Additionally, this commit exports IVHD type 0x11 besides the old IVHD type
0x10 in ACPI table. IVHD type 0x10 does not report full set of IOMMU
features only the legacy ones, so operating system (e.g. Linux) may only
detects x2APIC support if IVHD type 0x11 is available. The IVHD type 0x10
is kept so that old operating system that only parses type 0x10 can detect
the IOMMU device.
Besides, an amd_iommu-stub.c file is created to provide the definition for
amdvi_extended_feature_register when CONFIG_AMD_IOMMU=n. This function is
used by acpi-build.c to get the extended feature register value for
building the ACPI table. When CONFIG_AMD_IOMMU=y, this function is defined
in amd_iommu.c.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-7-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Following the instructions in bios-tables-test, this lists that IVRS.ivrs
in ACPI table will be changed to add new IVHD type 0x11.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-6-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
As userspace APIC now supports x2APIC, intel interrupt remapping
hardware can be set to EIM mode when userspace local APIC is used.
Suggested-by: Joao Martins <joao.m.martins@oracle.com>
Acked-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-5-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit adds support for x2APIC transitions when writing to
MSR_IA32_APICBASE register and finally adds CPUID_EXT_X2APIC to
TCG_EXT_FEATURES.
The set_base in APICCommonClass now returns an integer to indicate error in
execution. apic_set_base return -1 on invalid APIC state transition,
accelerator can use this to raise appropriate exception.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-4-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit extends the APIC ID to 32-bit long and remove the 255 max APIC
ID limit in userspace APIC. The array that manages local APICs is now
dynamically allocated based on the max APIC ID of created x86 machine.
Also, new x2APIC IPI destination determination scheme, self IPI and x2APIC
mode register access are supported.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-3-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit creates apic_register_read/write which are used by both
apic_mem_read/write for MMIO access and apic_msr_read/write for MSR access.
The apic_msr_read/write returns -1 on error, accelerator can use this to
raise the appropriate exception.
Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
Message-Id: <20240111154404.5333-2-minhquangbui99@gmail.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch derives vhost-user-input from vhost-user-base class, so make
the input stub as a simpler boilerplate wrapper.
With the refactoring, vhost-user-input adds the property 'chardev', this
leads to conflict with the vhost-user-input-pci adds the same property.
To resolve the error, remove the duplicate property from
vhost-user-input-pci.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <20231120043721.50555-5-leo.yan@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-12-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
vhost-user-input is in the input folder. On the other hand, the folder
'hw/virtio' maintains other virtio stubs (e.g. I2C, RNG, GPIO, etc).
This patch moves vhost-user-input into the virtio folder for better code
organization. No functionality change.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Message-Id: <20231120043721.50555-4-leo.yan@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-11-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This adds basic documentation for vhost-user-input.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Message-Id: <20231120043721.50555-3-leo.yan@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-10-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The Virtio input device invokes set_config() callback for retrieving
the event configuration info, but the callback is not supported in
vhost-user-base.
This patch adds support set_config() callback in vhost-user-base.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20231120043721.50555-2-leo.yan@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-9-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Make it clear the vhost-user-device is intended for expert use only.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-8-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Now we can take advantage of the new base class and make
vhost-user-i2c a much simpler boilerplate wrapper. Also as this
doesn't require any target specific hacks we only need to build the
stubs once.
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-6-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Now the new base class supports config handling we can take advantage
and make vhost-user-gpio a much simpler boilerplate wrapper. Also as
this doesn't require any target specific hacks we only need to build
the stubs once.
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-5-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Now we can take advantage of our new base class and make
vhost-user-rng a much simpler boilerplate wrapper. Also as this
doesn't require any target specific hacks we only need to build the
stubs once.
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-4-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
We are about to convert at least one stubs which was using the async
teardown so lets use it for all the cases.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-3-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Lets keep a cleaner split between the base class and the derived
vhost-user-device which we can use for generic vhost-user stubs. This
includes an update to introduce the vq_size property so the number of
entries in a virtq can be defined.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240104210945.1223134-2-alex.bennee@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* Check for 'A' extension on all atomic instructions
* Add support for 'B' extension
* Internally deprecate riscv_cpu_options
* Implement optional CSR mcontext of debug Sdtrig extension
* Internally add cpu->cfg.vlenb and remove cpu->cfg.vlen
* Support vlenb and vregs[] in KVM
* RISC-V gdbstub and TCG plugin improvements
* Remove vxrm and vxsat from FCSR
* Use RISCVException as return type for all csr ops
* Use g_autofree more and fix a memory leak
* Add support for Zaamo and Zalrsc
* Support new isa extension detection devicetree properties
* SMBIOS support for RISC-V virt machine
* Enable xtheadsync under user mode
* Add rv32i,rv32e and rv64e CPUs
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Merge tag 'pull-riscv-to-apply-20240209' of https://github.com/alistair23/qemu into staging
RISC-V PR for 9.0
* Check for 'A' extension on all atomic instructions
* Add support for 'B' extension
* Internally deprecate riscv_cpu_options
* Implement optional CSR mcontext of debug Sdtrig extension
* Internally add cpu->cfg.vlenb and remove cpu->cfg.vlen
* Support vlenb and vregs[] in KVM
* RISC-V gdbstub and TCG plugin improvements
* Remove vxrm and vxsat from FCSR
* Use RISCVException as return type for all csr ops
* Use g_autofree more and fix a memory leak
* Add support for Zaamo and Zalrsc
* Support new isa extension detection devicetree properties
* SMBIOS support for RISC-V virt machine
* Enable xtheadsync under user mode
* Add rv32i,rv32e and rv64e CPUs
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# gpg: Signature made Fri 09 Feb 2024 10:57:20 GMT
# gpg: using RSA key 6AE902B6A7CA877D6D659296AF7C95130C538013
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [unknown]
# 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: 6AE9 02B6 A7CA 877D 6D65 9296 AF7C 9513 0C53 8013
* tag 'pull-riscv-to-apply-20240209' of https://github.com/alistair23/qemu: (61 commits)
target/riscv: add rv32i, rv32e and rv64e CPUs
target/riscv/cpu.c: add riscv_bare_cpu_init()
target/riscv: Enable xtheadsync under user mode
qemu-options: enable -smbios option on RISC-V
target/riscv: SMBIOS support for RISC-V virt machine
smbios: function to set default processor family
smbios: add processor-family option
target/riscv: support new isa extension detection devicetree properties
target/riscv: use misa_mxl_max to populate isa string rather than TARGET_LONG_BITS
target/riscv: Expose Zaamo and Zalrsc extensions
target/riscv: Check 'A' and split extensions for atomic instructions
target/riscv: Add Zaamo and Zalrsc extension infrastructure
hw/riscv/virt.c: use g_autofree in create_fdt_*
hw/riscv/virt.c: use g_autofree in virt_machine_init()
hw/riscv/virt.c: use g_autofree in create_fdt_virtio()
hw/riscv/virt.c: use g_autofree in create_fdt_sockets()
hw/riscv/virt.c: use g_autofree in create_fdt_socket_cpus()
hw/riscv/numa.c: use g_autofree in socket_fdt_write_distance_matrix()
hw/riscv/virt-acpi-build.c: fix leak in build_rhct()
target/riscv: Use RISCVException as return type for all csr ops
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- William's fix on hwpoison migration which used to crash QEMU
- Peter's multifd cleanup + bugfix + optimizations
- Avihai's fix on multifd crash over non-socket channels
- Fabiano's multifd thread-race fix
- Peter's CI fix series
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Merge tag 'migration-staging-pull-request' of https://gitlab.com/peterx/qemu into staging
Migration pull
- William's fix on hwpoison migration which used to crash QEMU
- Peter's multifd cleanup + bugfix + optimizations
- Avihai's fix on multifd crash over non-socket channels
- Fabiano's multifd thread-race fix
- Peter's CI fix series
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# gpg: Signature made Thu 08 Feb 2024 03:04:21 GMT
# gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg: issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal]
# gpg: aka "Peter Xu <peterx@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706
* tag 'migration-staging-pull-request' of https://gitlab.com/peterx/qemu: (34 commits)
ci: Update comment for migration-compat-aarch64
ci: Remove tag dependency for build-previous-qemu
tests/migration-test: Stick with gicv3 in aarch64 test
migration/multifd: Add a synchronization point for channel creation
migration/multifd: Unify multifd and TLS connection paths
migration/multifd: Move multifd_send_setup into migration thread
migration/multifd: Move multifd_send_setup error handling in to the function
migration/multifd: Remove p->running
migration/multifd: Join the TLS thread
migration: Fix logic of channels and transport compatibility check
migration/multifd: Optimize sender side to be lockless
migration/multifd: Fix MultiFDSendParams.packet_num race
migration/multifd: Stick with send/recv on function names
migration/multifd: Cleanup multifd_load_cleanup()
migration/multifd: Cleanup multifd_save_cleanup()
migration/multifd: Rewrite multifd_queue_page()
migration/multifd: Change retval of multifd_send_pages()
migration/multifd: Change retval of multifd_queue_page()
migration/multifd: Split multifd_send_terminate_threads()
migration/multifd: Forbid spurious wakeups
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
A bare bones 32 bit RVI CPU, rv32i, will make users lives easier when a
full customized 32 bit CPU is desired, and users won't need to disable
defaults by hand as they would with the rv32 CPU. [1] has an example of
a situation that would be avoided with rv32i.
In fact, add bare bones CPUs for RVE as well. Trying to use RVE in QEMU
requires one to disable every single default extension, including RVI,
and then add the desirable extension set. Adding rv32e/rv64e makes it
more pleasant to use embedded CPUs in QEMU.
[1] https://lore.kernel.org/qemu-riscv/258be47f-97be-4308-bed5-dc34ef7ff954@Spark/
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122123348.973288-3-dbarboza@ventanamicro.com>
[ Changes by AF:
- Rebase on latest changes
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Next patch will add more bare CPUs. Their cpu_init() functions would be
glorified copy/pastes of rv64i_bare_cpu_init(), differing only by a
riscv_cpu_set_misa() call.
Add a new .instance_init for the TYPE_RISCV_BARE_CPU typ to avoid this
code repetition. While we're at it, add a better explanation on why
we're disabling the timing extensions for bare CPUs.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122123348.973288-2-dbarboza@ventanamicro.com>
[ Changes by AF:
- Rebase on latest changes
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
With SMBIOS support added for RISC-V we also should enable the command line
option.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20240123184229.10415-5-heinrich.schuchardt@canonical.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Generate SMBIOS tables for the RISC-V mach-virt.
Add CONFIG_SMBIOS=y to the RISC-V default config.
Set the default processor family in the type 4 table.
The implementation is based on the corresponding ARM and Loongson code.
With the patch the following firmware tables are provided:
etc/smbios/smbios-anchor
etc/smbios/smbios-tables
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20240123184229.10415-4-heinrich.schuchardt@canonical.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Provide a function to set the default processor family.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20240123184229.10415-3-heinrich.schuchardt@canonical.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
For RISC-V the SMBIOS standard requires specific values of the processor
family value depending on the bitness of the CPU.
Add a processor-family option for SMBIOS table 4.
The value of processor-family may exceed 255 and therefore must be provided
in the Processor Family 2 field. Set the Processor Family field to 0xFE
which signals that the Processor Family 2 is used.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Message-ID: <20240123184229.10415-2-heinrich.schuchardt@canonical.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
A few months ago I submitted a patch to various lists, deprecating
"riscv,isa" with a lengthy commit message [0] that is now commit
aeb71e42caae ("dt-bindings: riscv: deprecate riscv,isa") in the Linux
kernel tree. Primarily, the goal was to replace "riscv,isa" with a new
set of properties that allowed for strictly defining the meaning of
various extensions, where "riscv,isa" was tied to whatever definitions
inflicted upon us by the ISA manual, which have seen some variance over
time.
Two new properties were introduced: "riscv,isa-base" and
"riscv,isa-extensions". The former is a simple string to communicate the
base ISA implemented by a hart and the latter an array of strings used
to communicate the set of ISA extensions supported, per the definitions
of each substring in extensions.yaml [1]. A beneficial side effect was
also the ability to define vendor extensions in a more "official" way,
as the ISA manual and other RVI specifications only covered the format
for vendor extensions in the ISA string, but not the meaning of vendor
extensions, for obvious reasons.
Add support for setting these two new properties in the devicetrees for
the various devicetree platforms supported by QEMU for RISC-V. The Linux
kernel already supports parsing ISA extensions from these new
properties, and documenting them in the dt-binding is a requirement for
new extension detection being added to the kernel.
A side effect of the implementation is that the meaning for elements in
"riscv,isa" and in "riscv,isa-extensions" are now tied together as they
are constructed from the same source. The same applies to the ISA string
provided in ACPI tables, but there does not appear to be any strict
definitions of meanings in ACPI land either.
Link: https://lore.kernel.org/qemu-riscv/20230702-eats-scorebook-c951f170d29f@spud/ [0]
Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/riscv/extensions.yaml [1]
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240124-unvarying-foothold-9dde2aaf95d4@spud>
[ Changes by AF:
- Rebase on recent changes
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
A cpu may not have the same xlen as the compile time target, and
misa_mxl_max is the source of truth for what the hart supports.
The conversion from misa_mxl_max to xlen already has one user, so
introduce a helper and use that to populate the isa string.
Link: https://lore.kernel.org/qemu-riscv/20240108-efa3f83dcd3997dc0af458d7@orel/
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240124-swear-monthly-56c281f809a6@spud>
[ Changes by AF:
- Convert to use RISCVCPUClass *mcc
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Expose the newly added extensions to the guest and allow their control
through the CPU properties.
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240123111030.15074-4-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Following the pattern for 'M' and Zmmul check if either the 'A'
extension is enabled or the appropriate split extension for the
instruction.
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240123111030.15074-3-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
These extensions represent the atomic operations from A (Zaamo) and the
Load-Reserved/Store-Conditional operations from A (Zalrsc)
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240123111030.15074-2-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
We have a lot of cases where a char or an uint32_t pointer is used once
to alloc a string/array, read/written during the function, and then
g_free() at the end. There's no pointer re-use - a single alloc, a
single g_free().
Use 'g_autofree' to avoid the g_free() calls.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122221529.86562-8-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Move 'soc_name' to the loop, and give it g_autofree, to avoid the manual
g_free().
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240122221529.86562-7-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Put 'name' declaration inside the loop, with g_autofree, to avoid
manually doing g_free() in each iteration.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240122221529.86562-6-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Move 'clust_name' inside the loop, and g_autofree, to avoid having to
g_free() manually in each loop iteration.
'intc_phandles' is also g_autofreed to avoid another manual g_free().
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122221529.86562-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Move all char pointers to the loop. Use g_autofree in all of them to
avoid the g_free() calls.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240122221529.86562-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Use g_autofree in 'dist_matrix' to avoid the manual g_free().
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122221529.86562-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The 'isa' char pointer isn't being freed after use.
Issue detected by Valgrind:
==38752== 128 bytes in 1 blocks are definitely lost in loss record 3,190 of 3,884
==38752== at 0x484280F: malloc (vg_replace_malloc.c:442)
==38752== by 0x5189619: g_malloc (gmem.c:130)
==38752== by 0x51A5BF2: g_strconcat (gstrfuncs.c:628)
==38752== by 0x6C1E3E: riscv_isa_string_ext (cpu.c:2321)
==38752== by 0x6C1E3E: riscv_isa_string (cpu.c:2343)
==38752== by 0x6BD2EA: build_rhct (virt-acpi-build.c:232)
==38752== by 0x6BD2EA: virt_acpi_build (virt-acpi-build.c:556)
==38752== by 0x6BDC86: virt_acpi_setup (virt-acpi-build.c:662)
==38752== by 0x9C8DC6: notifier_list_notify (notify.c:39)
==38752== by 0x4A595A: qdev_machine_creation_done (machine.c:1589)
==38752== by 0x61E052: qemu_machine_creation_done (vl.c:2680)
==38752== by 0x61E052: qmp_x_exit_preconfig.part.0 (vl.c:2709)
==38752== by 0x6220C6: qmp_x_exit_preconfig (vl.c:2702)
==38752== by 0x6220C6: qemu_init (vl.c:3758)
==38752== by 0x425858: main (main.c:47)
Fixes: ebfd392893 ("hw/riscv/virt: virt-acpi-build.c: Add RHCT Table")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122221529.86562-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The real return value type has been converted to RISCVException,
but some function declarations still not. This patch makes all
csr operation declarations use RISCVExcetion.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240130110844.437-1-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
vxrm and vxsat have been moved into a special register vcsr since
RVV v1.0. So remove them from FCSR for vector 1.0.
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240130110945.486-1-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
