feat(adapter): higher-half kernel (linked at PHYS_OFFSET, boot trampoline, no low mappings), fix SBI ecall clobbers

2026-10-27 00:25:20 +01:00
parent 55758ae5b2
commit b87a62475f
20 changed files with 208 additions and 143 deletions
--- a/crates/adapter-riscv/src/boot/hardware.rs
+++ b/crates/adapter-riscv/src/boot/hardware.rs
@@ -27,6 +27,7 @@ pub fn init(uart: &Uart) -> &'static mut mmu::PageTable {
                mmu::page_table::WxViolation::WritableCode(va) => ("writable code", va),
                mmu::page_table::WxViolation::ExecutableData(va) => ("executable data", va),
                mmu::page_table::WxViolation::MappedHole(va) => ("mapped hole", va),
+                mmu::page_table::WxViolation::LowerHalf(va) => ("lower-half mapping", va),
            };
            uart.write_str("k-os: W^X violation: ");
            uart.write_str(what);