Samuel Holland b008e327fa riscv: Fix loading 64-bit NOMMU kernels past the start of RAM ... [ Upstream commit aea702dde7e9876fb00571a2602f25130847bf0f ] commit 3335068f87 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") added logic to allow using RAM below the kernel load address. However, this does not work for NOMMU, where PAGE_OFFSET is fixed to the kernel load address. Since that range of memory corresponds to PFNs below ARCH_PFN_OFFSET, mm initialization runs off the beginning of mem_map and corrupts adjacent kernel memory. Fix this by restoring the previous behavior for NOMMU kernels. Fixes: 3335068f87 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Link: https://lore.kernel.org/r/20240227003630.3634533-3-samuel.holland@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-05-02 16:32:49 +02:00
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asm	riscv: Fix loading 64-bit NOMMU kernels past the start of RAM	2024-05-02 16:32:49 +02:00
uapi/asm	RISC-V: Update AT_VECTOR_SIZE_ARCH for new AT_MINSIGSTKSZ	2024-04-10 16:35:58 +02:00