v1
2026-10-30
RISC-V KFENCE池修复 · v1
修复 RISC-V 线性映射拆分时 P4D 叶子识别，并用 PTE 映射准备 late KFENCE 池，避免保留失败导致无法启动。
原始补丁链接
子 Patch（2）
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riscv: Recognize P4D leaves when splitting the linear mapping
From: Jackie Liu liuyun01@kylinos.cn The linear mapping can contain P4D leaves on Sv57, but p4d_leaf() uses the generic definition which always returns false. Splitting a partial P4D range therefor
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riscv: Prepare late KFENCE pools with PTE mappings
From: Jackie Liu liuyun01@kylinos.cn RISC-V preallocates a PTE-mapped KFENCE pool, but pools allocated after boot may use huge mappings. arch_kfence_init_pool() leaves those mappings unchanged, whi