3 Commits

Author	SHA1	Message	Date
Mayuresh Chitale	64452a09c5	hw: intc: Use cpu_by_arch_id to fetch CPU state ... 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>	2023-03-05 15:33:40 -08:00
Anup Patel	dc9acc9ce4	target/riscv: Use official extension names for AIA CSRs ... 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>	2022-09-07 09:18:33 +02:00
Anup Patel	9746e583fe	hw/intc: Add RISC-V AIA IMSIC device emulation ... 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>	2022-03-03 13:14:50 +10:00