Commit graph

122988 commits

Author SHA1 Message Date
Daniel Henrique Barboza
148499b343 target/riscv/cpu.c: fix zama16b order in isa_edata_arr[]
Put it after zalrsc and before zawrs.

Cc: qemu-trivial@nongnu.org
Fixes: a60ce58fd9 ("target/riscv: Support Zama16b extension")
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250522113344.823294-1-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-04 21:09:48 +10:00
Jim Shu
dff5f51540 target/riscv: Enable/Disable S/VS-mode Timer when STCE bit is changed
Updating STCE will enable/disable SSTC in S-mode or/and VS-mode, so we
also need to update S/VS-mode Timer and S/VSTIP bits in $mip CSR.

Signed-off-by: Jim Shu <jim.shu@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250519143518.11086-5-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-04 21:09:48 +10:00
Jim Shu
3cb2edae74 target/riscv: Fix VSTIP bit in sstc extension.
VSTIP is only writable when both [mh]envcfg.STCE is enabled, or it will
revert it's defined behavior as if sstc extension is not implemented.

Signed-off-by: Jim Shu <jim.shu@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250519143518.11086-4-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-04 21:09:48 +10:00
Jim Shu
af27fc569a hw/intc: riscv_aclint: Fix mtime write for sstc extension
When changing the mtime value, the period of [s|vs]timecmp timers
should also be updated, similar to the period of mtimecmp timer.

The period of the stimecmp timer is the time until the next S-mode
timer IRQ. The value is calculated as "stimecmp - time". [1]
It is equal to "stimecmp - mtime" since the time CSR is a read-only
shadow of the memory-mapped mtime register.
Thus, changing mtime value will update the period of stimecmp timer.

Similarly, the period of vstimecmp timer is calculated as "vstimecmp -
(mtime + htimedelta)" [2], so changing mtime value will update the
period of vstimecmp timer.

[1] RISC-V Priv spec ch 9.1.1. Supervisor Timer (stimecmp) Register
A supervisor timer interrupt becomes pending, as reflected in the STIP
bit in the mip and sip registers whenever time contains a value
greater than or equal to stimecmp.
[2] RISC-V Priv spec ch19.2.1. Virtual Supervisor Timer (vstimecmp) Register
A virtual supervisor timer interrupt becomes pending, as reflected in
the VSTIP bit in the hip register, whenever (time + htimedelta),
truncated to 64 bits, contains a value greater than or equal to
vstimecmp

Signed-off-by: Jim Shu <jim.shu@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250519143518.11086-3-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-04 21:09:48 +10:00
Jim Shu
6eba6fe967 target/riscv: Add the checking into stimecmp write function.
Preparation commit to let aclint timer to use stimecmp write function.
Aclint timer doesn't call sstc() predicate so we need to check inside
the stimecmp write function.

Signed-off-by: Jim Shu <jim.shu@sifive.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20250519143518.11086-2-jim.shu@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2025-07-04 21:09:48 +10:00
Philippe Mathieu-Daudé
c8beb901be MAINTAINERS: Add me as reviewer of overall accelerators section
I'd like to be informed of overall changes of accelerators.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-40-philmd@linaro.org>
2025-07-04 12:17:52 +02:00
Daniel Henrique Barboza
0fd1d74080 monitor/hmp-cmds-target: add CPU_DUMP_VPU in hmp_info_registers()
Commit b84694defb added the CPU_DUMP_VPU to allow vector registers to be
logged by log_cpu_exec() in TCG. This flag was then used in commit
b227f6a8a7 to print RISC-V vector registers using this flag. Note that
this change was done in riscv_cpu_dump_state(), the cpu_dump_state()
callback for RISC-V, the same callback used in hmp_info_registers().

Back then we forgot to change hmp_info_registers(), and 'info registers'
isn't showing RISC-V vector registers as a result. No other target is
impacted since only RISC-V is using CPU_DUMP_VPU.

There's no reason to not show VPU regs in info_registers(), so add
CPU_DUMP_VPU to hmp_info_registers(). This will print vector registers
for all RISC-V machines and, as said above, has no impact in other
archs.

Cc: Dr. David Alan Gilbert <dave@treblig.org>
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: <20250623145306.991562-1-dbarboza@ventanamicro.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-07-04 12:17:52 +02:00
Philippe Mathieu-Daudé
842e7eecd4 accel: Pass AccelState argument to gdbstub_supported_sstep_flags()
In order to have AccelClass methods instrospect their state,
we need to pass AccelState by argument.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-37-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
1e9fb43d30 accel: Remove unused MachineState argument of AccelClass::setup_post()
This method only accesses xen_domid/xen_domid_restrict, which are both
related to the 'accelerator', not the machine. Besides, xen_domid aims
to be in Xen AccelState and xen_domid_restrict a xen_domid_restrict
QOM property.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-36-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
8dd5e6befc accel: Directly pass AccelState argument to AccelClass::has_memory()
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250703173248.44995-34-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
583d1c8f16 accel/kvm: Directly pass KVMState argument to do_kvm_create_vm()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-35-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
f0db25adcf accel/kvm: Prefer local AccelState over global MachineState::accel
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-32-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
0fdcfc3baf accel/tcg: Prefer local AccelState over global current_accel()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-33-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
51e1896199 accel: Propagate AccelState to AccelClass::init_machine()
In order to avoid init_machine() to call current_accel(),
pass AccelState along.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250703173248.44995-31-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
38623a9f63 accel: Keep reference to AccelOpsClass in AccelClass
Allow dereferencing AccelOpsClass outside of accel/accel-system.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250703173248.44995-30-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
b9b8ce0384 accel: Expose and register generic_handle_interrupt()
In order to dispatch over AccelOpsClass::handle_interrupt(),
we need it always defined, not calling a hidden handler under
the hood. Make AccelOpsClass::handle_interrupt() mandatory.
Expose generic_handle_interrupt() prototype and register it
for each accelerator.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250703173248.44995-29-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
e8388158e6 accel/dummy: Extract 'dummy-cpus.h' header from 'system/cpus.h'
'dummy' helpers are specific to accelerator implementations,
no need to expose them via "system/cpus.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250703173248.44995-27-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
d5a407a576 accel/whpx: Expose whpx_enabled() to common code
Currently whpx_enabled() is restricted to target-specific code.
By defining CONFIG_WHPX_IS_POSSIBLE we allow its use anywhere.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250703173248.44995-26-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
b6637bd556 accel/nvmm: Expose nvmm_enabled() to common code
Currently nvmm_enabled() is restricted to target-specific code.
By defining CONFIG_NVMM_IS_POSSIBLE we allow its use anywhere.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-25-philmd@linaro.org>
2025-07-04 12:08:44 +02:00
Philippe Mathieu-Daudé
60c9cec12c accel/system: Document cpu_synchronize_state_post_init/reset()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-24-philmd@linaro.org>
2025-07-04 12:08:41 +02:00
Philippe Mathieu-Daudé
1f8b0b6473 accel/system: Document cpu_synchronize_state()
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-23-philmd@linaro.org>
2025-07-04 12:08:38 +02:00
Philippe Mathieu-Daudé
476e737965 accel/kvm: Remove kvm_cpu_synchronize_state() stub
Since commit 57038a92bb ("cpus: extract out kvm-specific code
to accel/kvm") the kvm_cpu_synchronize_state() stub is not
necessary.

Fixes: e0715f6abc ("kvm: remove kvm specific functions from global includes")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-22-philmd@linaro.org>
2025-07-04 12:08:35 +02:00
Philippe Mathieu-Daudé
2974171205 accel/whpx: Replace @dirty field by generic CPUState::vcpu_dirty field
No need for accel-specific @dirty field when we have
a generic one in CPUState.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-21-philmd@linaro.org>
2025-07-04 12:08:32 +02:00
Philippe Mathieu-Daudé
2098164a6b accel/nvmm: Replace @dirty field by generic CPUState::vcpu_dirty field
No need for accel-specific @dirty field when we have
a generic one in CPUState.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-20-philmd@linaro.org>
2025-07-04 12:08:28 +02:00
Philippe Mathieu-Daudé
93bbbcb8d6 accel/hvf: Replace @dirty field by generic CPUState::vcpu_dirty field
No need for accel-specific @dirty field when we have
a generic one in CPUState.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-19-philmd@linaro.org>
2025-07-04 12:08:25 +02:00
Philippe Mathieu-Daudé
332ad068a0 cpus: Document CPUState::vcpu_dirty field
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250703173248.44995-18-philmd@linaro.org>
2025-07-04 12:08:25 +02:00
Philippe Mathieu-Daudé
5da232017a accel/hvf: Move generic method declarations to hvf-all.c
hvf-all.c aims to contain the generic accel methods (TYPE_ACCEL),
while hvf-accel-ops.c the per-vcpu methods (TYPE_ACCEL_OPS).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-17-philmd@linaro.org>
2025-07-04 12:08:22 +02:00
Philippe Mathieu-Daudé
c4b231cbd3 accel/hvf: Move per-cpu method declarations to hvf-accel-ops.c
hvf-all.c aims to contain the generic accel methods (TYPE_ACCEL),
while hvf-accel-ops.c the per-vcpu methods (TYPE_ACCEL_OPS).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-16-philmd@linaro.org>
2025-07-04 12:08:19 +02:00
Philippe Mathieu-Daudé
0175310c38 accel/hvf: Restrict internal declarations
Common code only needs to know whether HVF is enabled and
the QOM type. Move the rest to "hvf_int.h", removing the
need for COMPILING_PER_TARGET #ifdef'ry.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-15-philmd@linaro.org>
2025-07-04 12:08:16 +02:00
Philippe Mathieu-Daudé
a472390e80 accel/tcg: Factor tcg_dump_stats() out for re-use
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-11-philmd@linaro.org>
2025-07-04 12:08:13 +02:00
Philippe Mathieu-Daudé
04fbbeb765 accel/tcg: Factor tcg_dump_flush_info() out
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-10-philmd@linaro.org>
2025-07-04 12:08:10 +02:00
Philippe Mathieu-Daudé
f1e59f012d accel/tcg: Remove profiler leftover
TCG profiler was removed in commit 1b65b4f54c.

Fixes: 1b65b4f54c ("accel/tcg: remove CONFIG_PROFILER")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-9-philmd@linaro.org>
2025-07-04 12:08:07 +02:00
Philippe Mathieu-Daudé
a8e49597d4 accel/tcg: Remove 'info opcount' and @x-query-opcount
Since commit 1b65b4f54c ("accel/tcg: remove CONFIG_PROFILER",
released with QEMU v8.1.0) we get pointless output:

  (qemu) info opcount
  [TCG profiler not compiled]

Remove that unstable and unuseful command.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Dr. David Alan Gilbert <dave@treblig.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-8-philmd@linaro.org>
2025-07-04 12:07:59 +02:00
Philippe Mathieu-Daudé
06810394fd accel/kvm: Reduce kvm_create_vcpu() declaration scope
kvm_create_vcpu() is only used within the same file unit.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-7-philmd@linaro.org>
2025-07-04 12:02:52 +02:00
Philippe Mathieu-Daudé
f3fc87a14b accel/kvm: Remove kvm_init_cpu_signals() stub
Since commit 57038a92bb ("cpus: extract out kvm-specific code
to accel/kvm") the kvm_init_cpu_signals() stub is not necessary.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20250703173248.44995-6-philmd@linaro.org>
2025-07-04 12:02:52 +02:00
Philippe Mathieu-Daudé
d30245d3f5 system/cpus: Assert interrupt handling is done with BQL locked
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20250703173248.44995-5-philmd@linaro.org>
2025-07-04 12:02:41 +02:00
Ed Tanous
3a34dad2c0 tests/functional: Add gb200 tests
To support the newly added gb200 machine, add appropriate tests and
extend do_test_arm_aspeed_openbmc() to support the hostname of this
new system: "gb200nvl-obmc".

Signed-off-by: Ed Tanous <etanous@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250703144249.3348879-5-etanous@nvidia.com
[ clg: Adjust commit log to document do_test_arm_aspeed_openbmc() change ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 17:36:45 +02:00
Ed Tanous
becfaa10a2 hw/arm/aspeed: Add GB200 BMC target
GB200nvl72 is a system for for accelerated compute.  This is a model for
the BMC target within the system.

This is based on the device tree aspeed-bmc-nvidia-gb200nvl-bmc.dts
from:

[1] https://github.com/openbmc/linux/blob/dev-6.6/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts

Signed-off-by: Ed Tanous <etanous@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250703144249.3348879-4-etanous@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 17:36:45 +02:00
Ed Tanous
ad8e0e8a00 docs: add support for gb200-bmc
This patch updates the docs for support of gb200-bmc.

Signed-off-by: Ed Tanous <etanous@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250703144249.3348879-3-etanous@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 17:36:45 +02:00
Ed Tanous
92096685a0 hw/arm/aspeed: Add second SPI chip to Aspeed model
Aspeed2600 has two spi lanes;  Add a new struct that can mount the
second SPI.

Signed-off-by: Ed Tanous <etanous@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250703144249.3348879-2-etanous@nvidia.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 17:36:45 +02:00
Jamin Lin
6888a4a9c8 aspeed: Deprecate the ast2700a0-evb machine
The ast2700a0-evb machine represents the first revision of the AST2700 and
serves as the initial engineering sample rather than a production version.
A newer revision, A1, is now supported, and the ast2700a1-evb should replace
the older A0 version.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250703052400.2927831-1-jamin_lin@aspeedtech.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 14:38:42 +02:00
Steve Sistare
7437caad20 vfio: doc changes for cpr
Update documentation to say that cpr-transfer supports vfio and iommufd.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-22-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
99cedd5d55 vfio/container: delete old cpr register
vfio_cpr_[un]register_container is no longer used since they were
subsumed by container type-specific registration.  Delete them.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-21-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
6ff4cccd13 iommufd: preserve DMA mappings
During cpr-transfer load in new QEMU, the vfio_memory_listener causes
spurious calls to map and unmap DMA regions, as devices are created and
the address space is built.  This memory was already already mapped by the
device in old QEMU, so suppress the map and unmap callbacks during incoming
CPR.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-20-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
5c066c4be2 vfio/iommufd: change process
Finish CPR by change the owning process of the iommufd device in
post load.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-19-git-send-email-steven.sistare@oracle.com
[ clg: Fixed missing "qemu/error-report.h" include ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
010643eeb1 vfio/iommufd: reconstruct hwpt
Skip allocation of, and attachment to, hwpt_id.  Recover it from CPR state.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-18-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
4296ee0745 vfio/iommufd: reconstruct device
Reconstruct userland device state after CPR.  During vfio_realize, skip all
ioctls that configure the device, as it was already configured in old QEMU.

Skip bind, and use the devid from CPR state.

Skip allocation of, and attachment to, ioas_id.  Recover ioas_id from CPR
state, and use it to find a matching container, if any, before creating a
new one.

This reconstruction is not complete.  hwpt_id is handled in a subsequent
patch.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-17-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
2a3f0a59bd vfio/iommufd: preserve descriptors
Save the iommu and vfio device fd in CPR state when it is created.
After CPR, the fd number is found in CPR state and reused.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-16-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
f2f3e4667e vfio/iommufd: cpr state
VFIO iommufd devices will need access to ioas_id, devid, and hwpt_id in
new QEMU at realize time, so add them to CPR state.  Define CprVFIODevice
as the object which holds the state and is serialized to the vmstate file.
Define accessors to copy state between VFIODevice and CprVFIODevice.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-15-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00
Steve Sistare
a6f2f9c42f migration: vfio cpr state hook
Define a list of vfio devices in CPR state, in a subsection so that
older QEMU can be live updated to this version.  However, new QEMU
will not be live updateable to old QEMU.  This is acceptable because
CPR is not yet commonly used, and updates to older versions are unusual.

The contents of each device object will be defined by the vfio subsystem
in a subsequent patch.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-14-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-07-03 13:42:28 +02:00