Commit Graph
151 Commits
Author SHA1 Message Date
Richard HendersonandPeter Maydell d2687ad312 linux-user/aarch64: Enable GCS in HWCAP
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251008215613.300150-71-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-10-10 13:19:11 +01:00
Richard HendersonandPeter Maydell ef110c3070 linux-user/aarch64: Generate GCS signal records
Here we must push and pop a cap on the GCS stack as
well as the gcs record on the normal stack.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251008215613.300150-70-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-10-10 13:19:11 +01:00
Richard HendersonandPeter Maydell 37897b29b3 linux-user/aarch64: Inject SIGSEGV for GCS faults
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251008215613.300150-69-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-10-10 13:19:11 +01:00
Richard HendersonandPeter Maydell d0e16dcad9 linux-user/aarch64: Implement prctls for GCS
This is PR_GET_SHADOW_STACK_STATUS, PR_SET_SHADOW_STACK_STATUS,
and PR_LOCK_SHADOW_STACK_STATUS.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20251008215613.300150-64-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-10-10 13:19:10 +01:00
Richard Henderson b9baf09512 linux-user: Populate sigreturn_region_{start,end} in all vdso.S
Mark the regions which contain sigreturn syscalls within
each vdso.  Rebuild the shared objects.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-09-23 16:17:59 -07:00
Richard Henderson ccafa85a97 Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging
* cpu-exec: more cleanups to CPU loop exits
* python: bump bundled Meson to 1.9.0
* rust: require Rust 1.83.0
* rust: temporarily remove from Ubuntu CI
* rust: vmstate: convert to use builder pattern
* rust: split "qemu-api" crate
* rust: rename qemu_api_macros -> qemu_macros
* rust: re-export qemu macros from other crates
* x86: fix functional test failure for Xen emulation
* x86: cleanups

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# gpg: Signature made Wed 17 Sep 2025 10:02:19 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [unknown]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (60 commits)
  accel/kvm: Set guest_memfd_offset to non-zero value only when guest_memfd is valid
  accel/kvm: Zero out mem explicitly in kvm_set_user_memory_region()
  accel/kvm: Switch to check KVM_CAP_GUEST_MEMFD and KVM_CAP_USER_MEMORY2 on VM
  i386/kvm: Drop KVM_CAP_X86_SMM check in kvm_arch_init()
  multiboot: Fix the split lock
  target/i386: Define enum X86ASIdx for x86's address spaces
  i386/cpu: Enable SMM cpu address space under KVM
  hpet: guard IRQ handling with BQL
  rust: do not inline do_init_io
  rust: meson: remove unnecessary complication in device crates
  docs: update rust.rst
  rust: re-export qemu macros from common/qom/hwcore
  rust: re-export qemu_macros internal helper in "bits"
  rust: repurpose qemu_api -> tests
  rust/pl011: drop dependency on qemu_api
  rust/hpet: drop now unneeded qemu_api dep
  rust: rename qemu_api_macros -> qemu_macros
  rust: split "hwcore" crate
  rust: split "system" crate
  rust: split "chardev" crate
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-09-18 07:05:59 -07:00
Paolo Bonzini 758e5de501 bsd-user, linux-user: introduce qemu_process_cpu_events
Add a user-mode emulation version of the function.  More will be
added later, for now it is just process_queued_cpu_work.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-09-17 19:00:56 +02:00
Richard HendersonandPeter Maydell e1b31ba94d linux-user/aarch64: Generate ESR signal records
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250830054128.448363-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-09-16 17:31:53 +01:00
Richard HendersonandPeter Maydell 5fe3151c5e linux-user/aarch64: Check syndrome for EXCP_UDEF
Note that we have been passing the incorrect code for most
exception codes: uncategorized (do_el0_undef),
systemregistertrap (do_el0_sys), smetrap (do_sme_acc),
btitrap (do_el0_bti) and illegalstate (bad_el0_sync).
Only pacfail uses ILL_ILLOPN (do_el0_fpac).

Note that EC_MOP (do_el0_mops) ought not signal at all.
For now, preserve existing behavior signalling ILL_ILLOPN.

List all other exception codes and document why they do
not apply to user-only.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250830054128.448363-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-09-16 17:31:53 +01:00
Richard HendersonandPeter Maydell 71eba04575 linux-user/aarch64: Split out signal_for_exception
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250830054128.448363-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-09-16 17:31:53 +01:00
Richard HendersonandPeter Maydell 23f5b02447 target/arm: Enable FEAT_LSE128 for -cpu max
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250815122653.701782-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-08-30 16:38:47 +01:00
Richard HendersonandPeter Maydell 905c2c34fe target/arm: Rename isar_feature_aa64_atomics
This is FEAT_LSE -- rename the predicate to match.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250830045006.380393-1-richard.henderson@linaro.org
Message-id: 20250815122653.701782-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-08-30 16:38:18 +01:00
Richard HendersonandPeter Maydell 7494f8bbfb target/arm: Enable FEAT_CSSC for -cpu max
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250803014019.416797-7-richard.henderson@linaro.org
[PMM: rebased to handle linux-user elfload.c refactor]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-08-30 16:37:22 +01:00
Richard Henderson 8218eb6f52 linux-user: Move arch_parse_elf_property to aarch64/elfload.c
Rename the controlling macro to HAVE_ELF_GNU_PROPERTY to
match the other HAVE_* macros.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:04 +10:00
Richard Henderson e6b7635c9a linux-user: Standardize on ELF_MACHINE not ELF_ARCH
PowerPC was the one outlier that defined both ELF_ARCH and
ELF_MACHINE; ELF_ARCH was defined incorrectly, necessitating
the definition of elf_check_arch.

However, the elf file header field in question is called
e_machine, so ELF_MACHINE is in fact the better name.

Mechanically change most target/target_elf.h files,
then adjust ppc/target_elf.h manually.

Do not provide a default for ELF_MACHINE.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:04 +10:00
Richard Henderson f8eff2334a linux-user: Move elf parameters to {arm,aarch64}/target_elf.h
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:04 +10:00
Richard Henderson ff22166d3f linux-user/aarch64: Expand target_elf_gregset_t
Make use of the fact that target_elf_gregset_t is a
proper structure by using target_user_pt_regs.

Drop ELF_NREG, target_elf_greg_t, and tswapreg.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:03 +10:00
Richard Henderson 7ee71b02fb linux-user/aarch64: Create target_ptrace.h
Move the target_pt_regs structure from target_syscall.h, and
rename to target_user_pt_regs, to match what's in ptrace.h.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:03 +10:00
Richard Henderson b71b68b233 linux-user: Move elf_core_copy_regs to aarch64/elfload.c
Move elf_core_copy_regs to elfload.c.
Move HAVE_ELF_CORE_DUMP, ELF_NREGS, target_elf_gregset_t to target_elf.h.
For now, duplicate the definitions of target_elf_greg_t and tswapreg.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-30 07:04:03 +10:00
Richard Henderson 2eaaf04ad7 linux-user/aarch64: Create init_main_thread
Merge init_thread and target_cpu_copy_regs.
There's no point going through a target_pt_regs intermediate.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00
Richard Henderson d6b8c5dbd9 linux-user: Move get_elf_platform to arm/elfload.c
Move the aarch32 get_elf_platform to arm/elfload.c; pass in CPUState.
Create a simple version in aarch64/elfload.c, which we must do at the
same time because of the ifdef dependency between TARGET_AARCH64
and TARGET_ARM.

Since all versions of get_elf_platform now have the same
signature, remove the ifdef from the declaration in loader.h.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00
Richard Henderson 2d0687a514 linux-user: Move hwcap functions to {arm,aarch64}/elfload.c
For get_elf_hwcap and get_elf_hwcap2, change the return type to
abi_ulong, and pass in the cpu.  We must do these targets at the
same time because of the ifdef dependency between TARGET_AARCH64
and TARGET_ARM.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00
Richard Henderson af880af8d4 linux-user: Move get_elf_cpu_model to target/elfload.c
Rename from cpu_get_model to emphasize that this is an elf-specific
function.  Declare the function once in loader.h.

This frees up target_elf.h for other uses.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00
Richard Henderson 58afe4cfe9 linux-user: Create target/elfload.c files
Prepare to split the main linux-user/elfload.c.
Create empty files for each target, and add the common build rule.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00
Richard Henderson 7adf9ebb0a semihosting: Initialize heap once per process
While semihosting isn't really thread aware, the current
implementation allocates space for the heap per-thread.

Remove the heap_base and heap_limit fields from TaskState.
Replace with static variables within do_common_semihosting.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-08-28 06:39:25 +10:00