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* migration: Fix migration failure when aia is configured as aplic-imsicliu.xuemei1@zte.com.cn2025-07-041-2/+8
| | | | | | | | | | | | | | | | | | | | | | Address an error in migration when aia is configured as 'aplic-imsic' in riscv kvm vm by adding riscv_aplic_state_needed() and riscv_imsic_state_needed() to determine whether the corresponding sates are needed. Previously, the fields in the vmsds of 'riscv_aplic' and 'riscv_imsic' can only be initialized under certain special conditions in commit 95a97b3fd2. However, the corresponding ses of these vmsds are inserted into the savevm_state.handlers unconditionally. This led to migration failure characterized by uninitialized fields when save vm state: qemu-system-riscv64: ../migration/vmstate.c:433: vmstate_save_state_v: Assertion 'first_elem || !n_elems || !size' failed. Fixes: 95a97b3fd2 ("target/riscv: update APLIC and IMSIC to support KVM AIA") Signed-off-by: Xuemei Liu <liu.xuemei1@zte.com.cn> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20250616150034827wuHs_ffe3Qm8cqFXT7HeW@zte.com.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* qom: Have class_init() take a const data argumentPhilippe Mathieu-Daudé2025-04-251-1/+1
| | | | | | | | | | Mechanical change using gsed, then style manually adapted to pass checkpatch.pl script. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424194905.82506-4-philmd@linaro.org>
* include/system: Move exec/address-spaces.h to system/address-spaces.hRichard Henderson2025-04-231-1/+1
| | | | | | | | Convert the existing includes with sed. 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>
* hw/intc/imsic: refine the IMSIC realizeYong-Xuan Wang2025-03-041-21/+26
| | | | | | | | | | | | | | | | When the IMSIC is emulated in the kernel, the GPIO output lines to CPUs and aia_ireg_rmw_fn setting can be remove. In this case the IMSIC trigger CPU interrupts by KVM APIs, and the RMW of IREG is handled in kernel. This patch also move the code that claim the CPU interrupts to the beginning of IMSIC realization. This can avoid the unnecessary resource allocation before checking failed. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20250224025722.3999-2-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* Merge tag 'exec-20241220' of https://github.com/philmd/qemu into stagingStefan Hajnoczi2024-12-211-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accel & Exec patch queue - Ignore writes to CNTP_CTL_EL0 on HVF ARM (Alexander) - Add '-d invalid_mem' logging option (Zoltan) - Create QOM containers explicitly (Peter) - Rename sysemu/ -> system/ (Philippe) - Re-orderning of include/exec/ headers (Philippe) Move a lot of declarations from these legacy mixed bag headers: . "exec/cpu-all.h" . "exec/cpu-common.h" . "exec/cpu-defs.h" . "exec/exec-all.h" . "exec/translate-all" to these more specific ones: . "exec/page-protection.h" . "exec/translation-block.h" . "user/cpu_loop.h" . "user/guest-host.h" . "user/page-protection.h" # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmdlnyAACgkQ4+MsLN6t # wN6mBw//QFWi7CrU+bb8KMM53kOU9C507tjn99LLGFb5or73/umDsw6eo/b8DHBt # KIwGLgATel42oojKfNKavtAzLK5rOrywpboPDpa3SNeF1onW+99NGJ52LQUqIX6K # A6bS0fPdGG9ZzEuPpbjDXlp++0yhDcdSgZsS42fEsT7Dyj5gzJYlqpqhiXGqpsn8 # 4Y0UMxSL21K3HEexlzw2hsoOBFA3tUm2ujNDhNkt8QASr85yQVLCypABJnuoe/// # 5Ojl5wTBeDwhANET0rhwHK8eIYaNboiM9fHopJYhvyw1bz6yAu9jQwzF/MrL3s/r # xa4OBHBy5mq2hQV9Shcl3UfCQdk/vDaYaWpgzJGX8stgMGYfnfej1SIl8haJIfcl # VMX8/jEFdYbjhO4AeGRYcBzWjEJymkDJZoiSWp2NuEDi6jqIW+7yW1q0Rnlg9lay # ShAqLK5Pv4zUw3t0Jy3qv9KSW8sbs6PQxtzXjk8p97rTf76BJ2pF8sv1tVzmsidP # 9L92Hv5O34IqzBu2oATOUZYJk89YGmTIUSLkpT7asJZpBLwNM2qLp5jO00WVU0Sd # +kAn324guYPkko/TVnjC/AY7CMu55EOtD9NU35k3mUAnxXT9oDUeL4NlYtfgrJx6 # x1Nzr2FkS68+wlPAFKNSSU5lTjsjNaFM0bIJ4LCNtenJVP+SnRo= # =cjz8 # -----END PGP SIGNATURE----- # gpg: Signature made Fri 20 Dec 2024 11:45:20 EST # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [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: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * tag 'exec-20241220' of https://github.com/philmd/qemu: (59 commits) util/qemu-timer: fix indentation meson: Do not define CONFIG_DEVICES on user emulation system/accel-ops: Remove unnecessary 'exec/cpu-common.h' header system/numa: Remove unnecessary 'exec/cpu-common.h' header hw/xen: Remove unnecessary 'exec/cpu-common.h' header target/mips: Drop left-over comment about Jazz machine target/mips: Remove tswap() calls in semihosting uhi_fstat_cb() target/xtensa: Remove tswap() calls in semihosting simcall() helper accel/tcg: Un-inline translator_is_same_page() accel/tcg: Include missing 'exec/translation-block.h' header accel/tcg: Move tcg_cflags_has/set() to 'exec/translation-block.h' accel/tcg: Restrict curr_cflags() declaration to 'internal-common.h' qemu/coroutine: Include missing 'qemu/atomic.h' header exec/translation-block: Include missing 'qemu/atomic.h' header accel/tcg: Declare cpu_loop_exit_requested() in 'exec/cpu-common.h' exec/cpu-all: Include 'cpu.h' earlier so MMU_USER_IDX is always defined target/sparc: Move sparc_restore_state_to_opc() to cpu.c target/sparc: Uninline cpu_get_tb_cpu_state() target/loongarch: Declare loongarch_cpu_dump_state() locally user: Move various declarations out of 'exec/exec-all.h' ... Conflicts: hw/char/riscv_htif.c hw/intc/riscv_aplic.c target/s390x/cpu.c Apply sysemu header path changes to not in the pull request. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| * include: Rename sysemu/ -> system/Philippe Mathieu-Daudé2024-12-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Headers in include/sysemu/ are not only related to system *emulation*, they are also used by virtualization. Rename as system/ which is clearer. Files renamed manually then mechanical change using sed tool. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Lei Yang <leiyang@redhat.com> Message-Id: <20241203172445.28576-1-philmd@linaro.org>
* | include/hw/qdev-properties: Remove DEFINE_PROP_END_OF_LISTRichard Henderson2024-12-191-1/+0
|/ | | | | | | | | | | | | | Now that all of the Property arrays are counted, we can remove the terminator object from each array. Update the assertions in device_class_set_props to match. With struct Property being 88 bytes, this was a rather large form of terminator. Saves 30k from qemu-system-aarch64. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Lei Yang <leiyang@redhat.com> Link: https://lore.kernel.org/r/20241218134251.4724-21-richard.henderson@linaro.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* hw/intc: Constify all PropertyRichard Henderson2024-12-151-1/+1
| | | | | | Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* hw/intc: riscv-imsic: Fix interrupt state updates.Tomasz Jeznach2024-10-021-18/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IMSIC state variable eistate[] is modified by CSR instructions within a range dedicated to the local CPU and by MMIO writes from any CPU. Access to eistate from MMIO accessors is protected by the BQL, but read-modify-write (RMW) sequences from CSRRW do not acquire the BQL, making the RMW sequence vulnerable to a race condition with MMIO access from a remote CPU. This race can manifest as missing IPI or MSI in multi-CPU systems, eg: [ 43.008092] watchdog: BUG: soft lockup - CPU#2 stuck for 27s! [kworker/u19:1:52] [ 43.011723] CPU: 2 UID: 0 PID: 52 Comm: kworker/u19:1 Not tainted 6.11.0-rc6 [ 43.013070] Workqueue: events_unbound deferred_probe_work_func [ 43.018776] [<ffffffff800b4a86>] smp_call_function_many_cond+0x190/0x5c2 [ 43.019205] [<ffffffff800b4f28>] on_each_cpu_cond_mask+0x20/0x32 [ 43.019447] [<ffffffff8001069a>] __flush_tlb_range+0xf2/0x190 [ 43.019683] [<ffffffff80010914>] flush_tlb_kernel_range+0x20/0x28 The interrupt line raise/lower sequence was changed to prevent a race between the evaluation of the eistate and the execution of the qemu_irq raise/lower, ensuring that the interrupt line is not incorrectly deactivated based on a stale topei check result. To avoid holding BQL all modifications of eistate are converted to atomic operations. Signed-off-by: Tomasz Jeznach <tjeznach@rivosinc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <a7604e4d61068ca4d384ae2a1377e1521d4d0235.1725651699.git.tjeznach@rivosinc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw/intc: Constify VMStateRichard Henderson2023-12-291-1/+1
| | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20231221031652.119827-35-richard.henderson@linaro.org>
* accel/tcg: Replace CPUState.env_ptr with cpu_env()Richard Henderson2023-10-041-1/+1
| | | | | Reviewed-by: Anton Johansson <anjo@rev.ng> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* target/riscv: update APLIC and IMSIC to support KVM AIAYong-Xuan Wang2023-09-111-4/+21
| | | | | | | | | | | | | | | | KVM AIA can't emulate APLIC only. When "aia=aplic" parameter is passed, APLIC devices is emulated by QEMU. For "aia=aplic-imsic", remove the mmio operations of APLIC when using KVM AIA and send wired interrupt signal via KVM_IRQ_LINE API. After KVM AIA enabled, MSI messages are delivered by KVM_SIGNAL_MSI API when the IMSICs receive mmio write requests. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-5-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw: intc: Use cpu_by_arch_id to fetch CPU stateMayuresh Chitale2023-03-051-3/+3
| | | | | | | | | | | | | | Qemu_get_cpu uses the logical CPU id assigned during init to fetch the CPU state. However APLIC, IMSIC and ACLINT contain registers and states which are specific to physical hart Ids. The hart Ids in any given system might be sparse and hence calls to qemu_get_cpu need to be replaced by cpu_by_arch_id which performs lookup based on the sparse physical hart IDs. Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com> Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20230303065055.915652-3-mchitale@ventanamicro.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* target/riscv: Use official extension names for AIA CSRsAnup Patel2022-09-071-1/+3
| | | | | | | | | | | | | | | | | | | | The arch review of AIA spec is completed and we now have official extension names for AIA: Smaia (M-mode AIA CSRs) and Ssaia (S-mode AIA CSRs). Refer, section 1.6 of the latest AIA v0.3.1 stable specification at https://github.com/riscv/riscv-aia/releases/download/0.3.1-draft.32/riscv-interrupts-032.pdf) Based on above, we update QEMU RISC-V to: 1) Have separate config options for Smaia and Ssaia extensions which replace RISCV_FEATURE_AIA in CPU features 2) Not generate AIA INTC compatible string in virt machine Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20220820042958.377018-1-apatel@ventanamicro.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
* hw/intc: Add RISC-V AIA IMSIC device emulationAnup Patel2022-03-031-0/+448
The RISC-V AIA (Advanced Interrupt Architecture) defines a new interrupt controller for MSIs (message signal interrupts) called IMSIC (Incoming Message Signal Interrupt Controller). The IMSIC is per-HART device and also suppport virtualizaiton of MSIs using dedicated VS-level guest interrupt files. This patch adds device emulation for RISC-V AIA IMSIC which supports M-level, S-level, and VS-level MSIs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Signed-off-by: Anup Patel <anup@brainfault.org> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-Id: <20220220085526.808674-3-anup@brainfault.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>