| Commit message (Collapse) | Author | Age | Files | Lines |
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Firstly, enable the ability to choose the block device containing
a detachable LUKS header by adding the 'header' parameter to
BlockdevCreateOptionsLUKS.
Secondly, when formatting the LUKS volume with a detachable header,
truncate the payload volume to length without a header size.
Using the qmp blockdev command, create the LUKS volume with a
detachable header as follows:
1. add the secret to lock/unlock the cipher stored in the
detached LUKS header
$ virsh qemu-monitor-command vm '{"execute":"object-add",
> "arguments":{"qom-type": "secret", "id": "sec0", "data": "foo"}}'
2. create a header img with 0 size
$ virsh qemu-monitor-command vm '{"execute":"blockdev-create",
> "arguments":{"job-id":"job0", "options":{"driver":"file",
> "filename":"/path/to/detached_luks_header.img", "size":0 }}}'
3. add protocol blockdev node for header
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments": {"driver":"file", "filename":
> "/path/to/detached_luks_header.img", "node-name":
> "detached-luks-header-storage"}}'
4. create a payload img with 0 size
$ virsh qemu-monitor-command vm '{"execute":"blockdev-create",
> "arguments":{"job-id":"job1", "options":{"driver":"file",
> "filename":"/path/to/detached_luks_payload_raw.img", "size":0}}}'
5. add protocol blockdev node for payload
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments": {"driver":"file", "filename":
> "/path/to/detached_luks_payload_raw.img", "node-name":
> "luks-payload-raw-storage"}}'
6. do the formatting with 128M size
$ virsh qemu-monitor-command c81_node1 '{"execute":"blockdev-create",
> "arguments":{"job-id":"job2", "options":{"driver":"luks", "header":
> "detached-luks-header-storage", "file":"luks-payload-raw-storage",
> "size":134217728, "preallocation":"full", "key-secret":"sec0" }}}'
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Expand the signature of qcrypto_block_create to enable the
formation of LUKS volumes with detachable headers. To accomplish
that, introduce QCryptoBlockCreateFlags to instruct the creation
process to set the payload_offset_sector to 0.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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To support detached LUKS header creation, make the existing 'file'
field in BlockdevCreateOptionsLUKS optional.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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By enhancing the LUKS driver, it is possible to implement
the LUKS volume with a detached header.
Normally a LUKS volume has a layout:
disk: | header | key material | disk payload data |
With a detached LUKS header, you need 2 disks so getting:
disk1: | header | key material |
disk2: | disk payload data |
There are a variety of benefits to doing this:
* Secrecy - the disk2 cannot be identified as containing LUKS
volume since there's no header
* Control - if access to the disk1 is restricted, then even
if someone has access to disk2 they can't unlock
it. Might be useful if you have disks on NFS but
want to restrict which host can launch a VM
instance from it, by dynamically providing access
to the header to a designated host
* Flexibility - your application data volume may be a given
size and it is inconvenient to resize it to
add encryption.You can store the LUKS header
separately and use the existing storage
volume for payload
* Recovery - corruption of a bit in the header may make the
entire payload inaccessible. It might be
convenient to take backups of the header. If
your primary disk header becomes corrupt, you
can unlock the data still by pointing to the
backup detached header
Take the raw-format image as an example to introduce the usage
of the LUKS volume with a detached header:
1. prepare detached LUKS header images
$ dd if=/dev/zero of=test-header.img bs=1M count=32
$ dd if=/dev/zero of=test-payload.img bs=1M count=1000
$ cryptsetup luksFormat --header test-header.img test-payload.img
> --force-password --type luks1
2. block-add a protocol blockdev node of payload image
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments":{"node-name":"libvirt-1-storage", "driver":"file",
> "filename":"test-payload.img"}}'
3. block-add a protocol blockdev node of LUKS header as above.
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments":{"node-name":"libvirt-2-storage", "driver":"file",
> "filename": "test-header.img" }}'
4. object-add the secret for decrypting the cipher stored in
LUKS header above
$ virsh qemu-monitor-command vm '{"execute":"object-add",
> "arguments":{"qom-type":"secret", "id":
> "libvirt-2-storage-secret0", "data":"abc123"}}'
5. block-add the raw-drived blockdev format node
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments":{"node-name":"libvirt-1-format", "driver":"raw",
> "file":"libvirt-1-storage"}}'
6. block-add the luks-drived blockdev to link the raw disk
with the LUKS header by specifying the field "header"
$ virsh qemu-monitor-command vm '{"execute":"blockdev-add",
> "arguments":{"node-name":"libvirt-2-format", "driver":"luks",
> "file":"libvirt-1-format", "header":"libvirt-2-storage",
> "key-secret":"libvirt-2-format-secret0"}}'
7. hot-plug the virtio-blk device finally
$ virsh qemu-monitor-command vm '{"execute":"device_add",
> "arguments": {"num-queues":"1", "driver":"virtio-blk-pci",
> "drive": "libvirt-2-format", "id":"virtio-disk2"}}'
Starting a VM with a LUKS volume with detached header is
somewhat similar to hot-plug in that both maintaining the
same json command while the starting VM changes the
"blockdev-add/device_add" parameters to "blockdev/device".
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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The chardev socket backend will unref the QIOChannel object while
it is still potentially open. When using TLS there could be a
pending TLS handshake taking place. If the channel is left open
then when the TLS handshake callback runs, it can end up accessing
free'd memory in the tcp_chr_tls_handshake method.
Closing the QIOChannel will unregister any pending handshake
source.
Reported-by: jiangyegen <jiangyegen@huawei.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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This picks up the new EPYC-Genoa, SapphireRapids & GraniteRapids CPUs,
removes the now deleted Icelake-Client CPU, and adds the newer versions
of many existing CPUs.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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The 'header-rows' directive indicates how many rows in the generated
table are to be highlighted as headers. We only have one such row in
the CSV file included. This removes the accident bold highlighting
of the 'i486' CPU model.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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The RST doc include can't be made to skip the comment indicating the CPU
CSV file is auto-generated when importing it. This comment line was
previously manually removed from the generated output that was committed.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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For a long time now, libvirt has pre-created the monitor connection
socket and passed the pre-opened FD into QEMU during startup. Thus
libvirt does not have any timeouts waiting for the monitor socket
to appear, it is immediately connected.
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Each VNC feature enum entry has a corresponding _MASK constant
which is the bit-shifted value. It is very easy for contributors
to accidentally use the _MASK constant, instead of the non-_MASK
constant, or the reverse. No compiler warning is possible and
it'll just silently do the wrong thing at runtime.
By introducing the vnc_set_feature helper method, we can drop
all the _MASK constants and thus prevent any future accidents.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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In many configurations, e.g. multiple vNICs with multiple queues or
with many Ceph OSDs, the default soft limit of 1024 is not enough.
QEMU is supposed to work fine with file descriptors >= 1024 and does
not use select() on POSIX. Bump the soft limit to the allowed hard
limit to avoid issues with the aforementioned configurations.
Of course the limit could be raised from the outside, but the man page
of systemd.exec states about 'LimitNOFILE=':
> Don't use.
> [...]
> Typically applications should increase their soft limit to the hard
> limit on their own, if they are OK with working with file
> descriptors above 1023,
If the soft limit is already the same as the hard limit, avoid the
superfluous setrlimit call. This can avoid a warning with a strict
seccomp filter blocking setrlimit if NOFILE was already raised before
executing QEMU.
Buglink: https://bugzilla.proxmox.com/show_bug.cgi?id=4507
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Introduce the SM4 cipher algorithms (OSCCA GB/T 32907-2016).
SM4 (GBT.32907-2016) is a cryptographic standard issued by the
Organization of State Commercial Administration of China (OSCCA)
as an authorized cryptographic algorithms for the use within China.
Detect the SM4 cipher algorithms and enable the feature silently
if it is available.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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When scanning the list of warning flags to see if one is present, it is
helpful if they are in alphabetical order. It is further helpful to
separate out the 'no-' prefixed warnings.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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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
# -----BEGIN PGP SIGNATURE-----
#
# iQIzBAABCAAdFiEEaukCtqfKh31tZZKWr3yVEwxTgBMFAmXGBRAACgkQr3yVEwxT
# gBPqVA//etMiwP8+lQb2E4pw+QwBIzpm3qFyBlqgSCFrekj1u2kYNd4CH3CKurWE
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# LSgmr/dDya74chDxjxa+7ld3xqloHi5OtdGaeORfdPXl7mjCCKKCoSKYCex1ykup
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# 8l2xOHu3mydDbfdxTGZNJjcIrMTX/YEewAYZLRYpNsyPOMntgq8HEegwCdWGvK7C
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# ilLSgZ9Of72QlAH2OPJNSAL9Nbc06MHEM0JiHIJa5u+XdcVRhZus5h1YIOKXisqF
# YPP22RnI5Jj5d5csa/0ONAZGFh5SRMTJtpjKoKSkzoYJWDjCQ2MiUAOmLscchMZd
# wbK0vjeRf6kRG4U4z7nTmHS9kzH8RXUZDecVcOITuMpKih9LhUiCZ+xPunFYPycJ
# WNFa9/pENcCXJweXvtk4NHwx933rX56678lF6KY2hwUwwaiBOv4=
# =yuRM
# -----END PGP SIGNATURE-----
# 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>
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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>
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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>
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According to xtheadsync[1][2] documentation, it can be used in user mode and
the behavior is same with other priviledges.
[1]:https://github.com/T-head-Semi/thead-extension-spec/blob/master/xtheadsync/sync.adoc
[2]:https://github.com/T-head-Semi/thead-extension-spec/blob/master/xtheadsync/sync_i.adoc
Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240204055228.900-1-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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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>
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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>
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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>
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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>
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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>
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TARGET_LONG_BITS
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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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misa_mxl_max is now a class member and initialized only once for each
class. This also moves the initialization of gdb_core_xml_file which
will be referenced before realization in the future.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240203-riscv-v11-3-a23f4848a628@daynix.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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misa_mxl_max is common for all instances of a RISC-V CPU class so they
are better put into class.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240203-riscv-v11-2-a23f4848a628@daynix.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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It is initialized with a simple assignment and there is little room for
error. In fact, the validation is even more complex.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240203-riscv-v11-1-a23f4848a628@daynix.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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vregs[] have variable size that depends on the current vlenb set by the
host, meaning we can't use our regular kvm_riscv_reg_id() to retrieve
it.
Create a generic kvm_encode_reg_size_id() helper to encode any given
size in bytes into a given kvm reg id. kvm_riscv_vector_reg_id() will
use it to encode vlenb into a given vreg ID.
kvm_riscv_(get|set)_vector() can then get/set all 32 vregs.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240123161714.160149-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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KVM will check for the correct 'reg_size' when accessing the vector
registers, erroring with EINVAL if we encode the wrong size in reg ID.
Vector registers varies in size with the vector length in bytes, or
'vlenb'. This means that we need the current 'vlenb' being used by the
host, otherwise we won't be able to fetch all vector regs.
We'll deal with 'vlenb' first. Its support was added in Linux 6.8 as a
get-reg-list register. We'll read 'vlenb' via get-reg-list and mark the
register as 'supported'. All 'vlenb' ops via kvm_arch_get_registers()
and kvm_arch_put_registers() will only be done if the reg is supported,
i.e. we fetched it in get-reg-list during init.
If the user sets a new vlenb value using the 'vlen' property, throw an
error if the user value differs from the host.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240123161714.160149-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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The field isn't big enough to hold an uint64_t kvm register and Vector
registers will end up overflowing it.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240123161714.160149-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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There is no need to keep both 'vlen' and 'vlenb'. All existing code
that requires 'vlen' is retrieving it via 'vlenb << 3'.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-14-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Use the helper instead of calculating vlmax by hand.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-13-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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We'll re-use the logic froim vext_get_vlmax() in 2 other occurrences in
the next patch, but first we need to make it independent of both 'cpu'
and 'vtype'. To do that, add 'vlenb', 'vsew' and 'lmul' as parameters
instead.
Adapt the two existing callers. In cpu_get_tb_cpu_state(), rename 'sew'
to 'vsew' to be less ambiguous about what we're encoding into *pflags.
In HELPER(vsetvl) the following changes were made:
- add a 'vsew' var to store vsew. Use it in the shift to get 'sew';
- the existing 'lmul' var was renamed to 'vlmul';
- add a new 'lmul' var to store 'lmul' encoded like DisasContext:lmul.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-12-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Rename the existing 'sew' variable to 'vsew' for extra clarity.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-11-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Calculate the maximum vector size possible, 'max_sz', which is the size
in bytes 'vlenb' multiplied by the max value of LMUL (LMUL = 8, when
s->lmul = 3).
'max_sz' is then shifted right by 'scale', expressed as '3 - s->lmul',
which is clearer than doing 'scale = lmul - 3' and then using '-scale'
in the shift right.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-10-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Use the new 'vlenb' CPU config to validate fractional LMUL. The original
comparison is done with 'vlen' and 'sew', both in bits. Adjust the shift
to use vlenb.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-9-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Use 'cpu->cfg.vlenb' instead of 'cpu->cfg.vlen >> 3'.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-8-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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Use s->cfg_ptr->vlenb instead of s->cfg_ptr->vlen / 8.
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240122161107.26737-7-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
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