Function pmp_blocks_execute_when_x_clear

crates/virtual-machine/src/cpu/mmu.rs:390–419

()

            pmpaddr0: u64::MAX,
        };

        let mut tlb = Tlb::new();
        let fetched = crate::cpu::pipeline::fetch::fetch_with_pmp(
            &mut bus,
            crate::bus::RAM_BASE,
            ctx,
            &mut tlb,
        )
        .expect("fetch should succeed");

        assert_eq!(fetched, instr);
    }

    #[test]
    fn pmp_blocks_execute_when_x_clear() {
        let mut bus = SystemBus::new(vec![]);
        let instr: u32 = 0x0000_0013; // addi x0,x0,0
        let _ = bus.write_word(crate::bus::RAM_BASE, instr);

        let ctx = TranslationContext {
            satp: 0,
            priv_mode: crate::cpu::registers::PrivilegeMode::Supervisor,
            mstatus: 0,
            pmpcfg0: 0x3,
            pmpaddr0: u64::MAX,
        };

        let mut tlb = Tlb::new();
        let res = crate::cpu::pipeline::fetch::fetch_with_pmp(
            &mut bus,
            crate::bus::RAM_BASE,
            ctx,
            &mut tlb,