Refactor config system with axconfig-gen

[equation314]

• Better config file parsing (Split the axconfig-gen crate).
• Richer config types support (High-dimensional arrays and tuples).
• Easier to modify kernel and platform configs (by .axconfig.toml).
• Including external config files and managing them together (e.g., app configs).

[hky1999]

should we fix this problem in this PR?

set mem_size in scripts/make/qemu.mk as 4G

make A=examples/shell ARCH=x86_64 BLK=y run

[  0.014208 0 axhal::arch::x86_64::trap:16] No registered handler for trap PAGE_FAULT
[  0.014954 0 axruntime::lang_items:5] panicked at modules/axhal/src/arch/x86_64/trap.rs:17:9:
Unhandled kernel #PF @ 0xffffff800020b112, fault_vaddr=VA:0x378000000014, error_code=0x2 (WRITE):
TrapFrame {
    rax: 0x2,
    rcx: 0x400,
    rdx: 0x800,
    rbx: 0x378000000000,
    rbp: 0xffffff80b0000000,
    rsi: 0xffffff800028cd50,
    rdi: 0xffffff800028bdd0,
    r8: 0x3000,
    r9: 0x10,
    r10: 0x380000000000,
    r11: 0x10000000,
    r12: 0x378000000000,
    r13: 0x378000003000,
    r14: 0x300,
    r15: 0x10300,
    vector: 0xe,
    error_code: 0x2,
    rip: 0xffffff800020b112,
    cs: 0x10,
    rflags: 0x10086,
    rsp: 0xffffff800028bc30,
    ss: 0x0,
}

[equation314]

should we fix this problem in this PR?

set mem_size in scripts/make/qemu.mk as 4G

make A=examples/shell ARCH=x86_64 BLK=y run

[  0.014208 0 axhal::arch::x86_64::trap:16] No registered handler for trap PAGE_FAULT
[  0.014954 0 axruntime::lang_items:5] panicked at modules/axhal/src/arch/x86_64/trap.rs:17:9:
Unhandled kernel #PF @ 0xffffff800020b112, fault_vaddr=VA:0x378000000014, error_code=0x2 (WRITE):
TrapFrame {
    rax: 0x2,
    rcx: 0x400,
    rdx: 0x800,
    rbx: 0x378000000000,
    rbp: 0xffffff80b0000000,
    rsi: 0xffffff800028cd50,
    rdi: 0xffffff800028bdd0,
    r8: 0x3000,
    r9: 0x10,
    r10: 0x380000000000,
    r11: 0x10000000,
    r12: 0x378000000000,
    r13: 0x378000003000,
    r14: 0x300,
    r15: 0x10300,
    vector: 0xe,
    error_code: 0x2,
    rip: 0xffffff800020b112,
    cs: 0x10,
    rflags: 0x10086,
    rsp: 0xffffff800028bc30,
    ss: 0x0,
}

Ok, change phys-virt-offset to "0xffff_8000_0000_0000"?

[hky1999]

BTW, will we support features checking? how do we do that?

for example, if we just compile hello_world app with FEATURES=sched_cfs, it will throw a compile error caused by undefined symbols related with KernelGuardIf

make SMP=4 LOG=info FEATURES=sched_cfs ARCH=aarch64 ACCEL=n

[equation314]

make SMP=4 LOG=info FEATURES=sched_cfs ARCH=aarch64 ACCEL=n

Maybe in next PR for feature system refactoring.

[hky1999]

LGTM