diff mbox series

[RFC,V2,10/38] riscv: u64ilp32: Remove the restriction of UXL=32

Message ID 20231112061514.2306187-11-guoren@kernel.org
State New
Headers
Series rv64ilp32: Running ILP32 on RV64 ISA |

Commit Message

Guo Ren Nov. 12, 2023, 6:14 a.m. UTC 
  From: Guo Ren <guoren@linux.alibaba.com>

The u64ilp32 needn't hardware support UXL=32, so remove the
restriction when EF_RISCV_64ILP32 is detected.

Reported-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
---
 arch/riscv/kernel/process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c
index e32d737e039f..93057ca2e2a7 100644
--- a/arch/riscv/kernel/process.c
+++ b/arch/riscv/kernel/process.c
@@ -88,7 +88,7 @@  static bool compat_mode_supported __read_mostly;
 
 bool compat_elf_check_arch(Elf32_Ehdr *hdr)
 {
-	return compat_mode_supported &&
+	return (compat_mode_supported || (hdr->e_flags & EF_RISCV_64ILP32)) &&
 	       hdr->e_machine == EM_RISCV &&
 	       hdr->e_ident[EI_CLASS] == ELFCLASS32;
 }