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riscv: mm: Set sv57 on defaultly

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This patch sets sv57 on defaultly if CONFIG_64BIT. And do fallback to try
to set sv48 on boot time if sv57 is not supported in current hardware.

Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Qinglin Pan
2022-01-27 10:48:43 +08:00
committed by Palmer Dabbelt
parent 677b9eb881
commit 011f09d120
5 changed files with 34 additions and 11 deletions
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1
arch/riscv/include/asm/page.h
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@@ -41,6 +41,7 @@
* By default, CONFIG_PAGE_OFFSET value corresponds to SV48 address space so
* define the PAGE_OFFSET value for SV39.
*/
#define PAGE_OFFSET_L4 _AC(0xffffaf8000000000, UL)
#define PAGE_OFFSET_L3 _AC(0xffffffd800000000, UL)
#else
#define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)