This patch adds alignment checks in the load operations (when unstacking the
return pc and psr) in the FunctionReturn pseudocode.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-4-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch adds alignment checks in the store operations (when stacking the
return pc and psr) in the BLXNS instruction.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1154
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-3-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch brings the VLSTM and VLLDM helper functions closer to the ARM
pseudocode by adding MO_ALIGN to the MemOpIdx of the associated store
(`cpu_stl_mmu`) operations and load (`cpu_ldl_mmu`) operations.
Note that this is not a bug fix: an 8-byte alignment check already exists
and remains in place, enforcing stricter alignment than the 4 bytes
requirement in the individual loads and stores. This change merely makes the
helper implementations closer to the ARM pseudocode.
That said, as a side effect, the MMU index is now resolved once instead of
on every `cpu_*_data_ra` call, reducing redundant lookups
Signed-off-by: William Kosasih <kosasihwilliam4@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250703085604.154449-2-kosasihwilliam4@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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>
After the docs directory restructuring, several comments
refer to paths that no longer exist.
Replace these references to the current file locations
so readers can find the correct files.
Related commits
---------------
189c099f75 (Jul 2021)
docs: collect the disparate device emulation docs into one section
Rename docs/system/{ => devices}/nvme.rst
5f4c96b779 (Feb 2023)
docs/system/loongarch: update loongson3.rst and rename it to virt.rst
Rename docs/system/loongarch/{loongson3.rst => virt.rst}
fe0007f3c1 (Sep 2023)
exec: Rename cpu.c -> cpu-target.c
Rename cpus-common.c => cpu-common.c
42fa9665e5 (Apr 2025)
exec: Restrict 'cpu_ldst.h' to accel/tcg/
Rename include/{exec/cpu_ldst.h => accel/tcg/cpu-ldst.h}
Signed-off-by: Sean Wei <me@sean.taipei>
Message-ID: <20250616.qemu.relocated.06@sean.taipei>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
In preparation of raising exceptions at EL2, add the 'target_el'
argument to hvf_raise_exception().
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-12-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tracing $PC for unknown HVC instructions to not have to
look at the disassembled flow of instructions.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-9-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Allow distinguishing HV_ILLEGAL_GUEST_STATE in trace events.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-7-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Same code, use the generic variant.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
arm_cpu_post_init() 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>
Message-id: 20250623121845.7214-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since commit 0c1aaa66c2 ("target/arm: wrap psci call with
tcg_enabled") the arm_handle_psci_call() call is elided
when TCG is disabled.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We have fd, so might as well neaten things up.
Suggested-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-15-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-12-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-11-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-10-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-9-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-8-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-7-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-6-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-5-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-4-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Also add kvm accessors for storing host features into idregs.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-3-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This new header contains macros that define aarch64 registers.
In a subsequent patch, this will be replaced by a more exhaustive
version that will be generated from linux arch/arm64/tools/sysreg
file. Those macros are sufficient to migrate the storage of those
ID regs from named fields in isar struct to an array cell.
[CH: reworked to use different structures]
[CH: moved accessors from the patches first using them to here,
dropped interaction with writable registers, which will happen
later]
[CH: use DEF magic suggested by rth]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Sebastian Ott <sebott@redhat.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-id: 20250617153931.1330449-2-cohuck@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
According to the Arm A-profile A64 Instruction Set Architecture,
RETA[AB] should be decoded as UNDEF if the pauth feature is not
implemented.
We got this right in the initial implementation, but accidentally
dropped the feature-check when we converted these insns to
decodetree.
Cc: qemu-stable@nongnu.org
Fixes: 0ebbe90212 ("target/arm: Convert BRA[AB]Z, BLR[AB]Z, RETA[AB] to decodetree")
Signed-off-by: Solomon Tan <root@wjsota.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250616171549.59190-1-root@wjsota.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Raw writes to PMCNTENCLR and PMCNTENCLR_EL0 incorrectly used their
default write function, which clears written bits instead of writes the
raw value.
PMINTENCLR and PMINTENCLR_EL1 are similar registers, but they instead
had ARM_CP_NO_RAW. Commit 7a0e58fa64 ("target-arm: Split NO_MIGRATE
into ALIAS and NO_RAW") sugguests ARM_CP_ALIAS should be used instead of
ARM_CP_NO_RAW in such a case:
> We currently mark ARM coprocessor/system register definitions with
> the flag ARM_CP_NO_MIGRATE for two different reasons:
> 1) register is an alias on to state that's also visible via
> some other register, and that other register is the one
> responsible for migrating the state
> 2) register is not actually state at all (for instance the TLB
> or cache maintenance operation "registers") and it makes no
> sense to attempt to migrate it or otherwise access the raw state
>
> This works fine for identifying which registers should be ignored
> when performing migration, but we also use the same functions for
> synchronizing system register state between QEMU and the kernel
> when using KVM. In this case we don't want to try to sync state
> into registers in category 2, but we do want to sync into registers
> in category 1, because the kernel might have picked a different
> one of the aliases as its choice for which one to expose for
> migration.
These registers fall in category 1 (ARM_CP_ALIAS), not category 2
(ARM_CP_NO_RAW).
ARM_CP_NO_RAW also has another undesired side effect that hides
registers from GDB.
Properly set raw write functions and drop the ARM_CP_NO_RAW flag from
PMINTENCLR and PMINTENCLR_EL1; this fixes GDB/KVM state synchronization
of PMCNTENCLR and PMCNTENCLR_EL0, and exposes all these four registers
to GDB.
It is not necessary to add ARM_CP_ALIAS to these registers because the
flag is already set.
Signed-off-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Message-id: 20250531-clr-v3-1-377f9bf1746d@rsg.ci.i.u-tokyo.ac.jp
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* target/i386/emulate: more lflags cleanups
* meson: remove need for explicit listing of dependencies in hw_common_arch and
target_common_arch
* rust: small fixes
* hpet: Reorganize register decoding to be more similar to Rust code
* target/i386: fixes for AMD models
* target/i386: new EPYC-Turin CPU model
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* target/i386/kvm: Intel TDX support
* target/i386/emulate: more lflags cleanups
* meson: remove need for explicit listing of dependencies in hw_common_arch and
target_common_arch
* rust: small fixes
* hpet: Reorganize register decoding to be more similar to Rust code
* target/i386: fixes for AMD models
* target/i386: new EPYC-Turin CPU model
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# gpg: Signature made Thu 29 May 2025 03:05:00 EDT
# gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg: issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (77 commits)
target/i386/tcg/helper-tcg: fix file references in comments
target/i386: Add support for EPYC-Turin model
target/i386: Update EPYC-Genoa for Cache property, perfmon-v2, RAS and SVM feature bits
target/i386: Add couple of feature bits in CPUID_Fn80000021_EAX
target/i386: Update EPYC-Milan CPU model for Cache property, RAS, SVM feature bits
target/i386: Update EPYC-Rome CPU model for Cache property, RAS, SVM feature bits
target/i386: Update EPYC CPU model for Cache property, RAS, SVM feature bits
rust: make declaration of dependent crates more consistent
docs: Add TDX documentation
i386/tdx: Validate phys_bits against host value
i386/tdx: Make invtsc default on
i386/tdx: Don't treat SYSCALL as unavailable
i386/tdx: Fetch and validate CPUID of TD guest
target/i386: Print CPUID subleaf info for unsupported feature
i386: Remove unused parameter "uint32_t bit" in feature_word_description()
i386/cgs: Introduce x86_confidential_guest_check_features()
i386/tdx: Define supported KVM features for TDX
i386/tdx: Add XFD to supported bit of TDX
i386/tdx: Add supported CPUID bits relates to XFAM
i386/tdx: Add supported CPUID bits related to TD Attributes
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
ARMCPU typedef is declared in "cpu-qom.h". Include it in
order to avoid when refactoring unrelated headers:
target/arm/hvf_arm.h:23:41: error: unknown type name 'ARMCPU'
23 | void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu);
| ^
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250513173928.77376-10-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
ARMCPU typedef is declared in "cpu-qom.h". Include it in
order to avoid when refactoring unrelated headers:
target/arm/kvm_arm.h:54:29: error: unknown type name 'ARMCPU'
54 | bool write_list_to_kvmstate(ARMCPU *cpu, int level);
| ^
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250513173928.77376-9-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
arm-qmp-cmds.c uses ARM_MAX_VQ, which is defined in "cpu.h".
Include the latter to avoid when refactoring unrelated headers:
target/arm/arm-qmp-cmds.c:83:19: error: use of undeclared identifier 'ARM_MAX_VQ'
83 | QEMU_BUILD_BUG_ON(ARM_MAX_VQ > 16);
| ^
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250513173928.77376-8-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
"target/arm/cpu-features.h" dereferences the ARMISARegisters
structure, which is defined in "cpu.h". Include the latter to
avoid when refactoring unrelated headers:
In file included from target/arm/internals.h:33:
target/arm/cpu-features.h:45:54: error: unknown type name 'ARMISARegisters'
45 | static inline bool isar_feature_aa32_thumb_div(const ARMISARegisters *id)
| ^
target/arm/cpu-features.h:47:12: error: use of undeclared identifier 'R_ID_ISAR0_DIVIDE_SHIFT'
47 | return FIELD_EX32(id->id_isar0, ID_ISAR0, DIVIDE) != 0;
| ^
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250513173928.77376-7-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
CPReadFn type definitions use the CPUARMState type, itself
declared in "cpu.h". Include this file in order to avoid when
refactoring headers:
../target/arm/cpregs.h:241:27: error: unknown type name 'CPUARMState'
typedef uint64_t CPReadFn(CPUARMState *env, const ARMCPRegInfo *opaque);
^
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250513173928.77376-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since commit 538b764d34 ("target/arm: Move minor arithmetic
helpers out of helper.c") we only use the zlib helpers under
TCG.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-id: 20250513173928.77376-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In order to allow non-target specific code to include
"hvf_arm.h", define the stubs in hvf-stub.c.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250513173928.77376-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce kvm_arch_pre_create_vcpu(), to perform arch-dependent
work prior to create any vcpu. This is for i386 TDX because it needs
call TDX_INIT_VM before creating any vcpu.
The specific implementation for i386 will be added in the future patch.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250508150002.689633-8-xiaoyao.li@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This removes the TARGET_* conditions from all the CPU commands
that are conceptually target independent. Top level stubs are
provided to cope with targets which do not currently implement
all of the commands. Adjust the doc comments accordingly.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20250522190542.588267-10-pierrick.bouvier@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This removes the TARGET_ARM condition from the query-gic-capability
command. This requires providing a QMP command stub for non-ARM targets.
This in turn requires moving the command out of misc-target.json, since
that will trigger symbol poisoning errors when built from target
independent code.
Following the earlier precedent, this creates a misc-arm.json file to
hold this ARM specific command.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20250522190542.588267-5-pierrick.bouvier@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
For a-profile, check A32 vs A64 state.
For m-profile, use cpu_pointer_wrap_uint32.
Cc: qemu-arm@nongnu.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
