(nuttx) branch master updated: boards/risc-v: Enable VPU initialization for QEMU RV

[xiaoxiang]

This is an automated email from the ASF dual-hosted git repository.

xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new 73b9bced17e boards/risc-v: Enable VPU initialization for QEMU RV
73b9bced17e is described below

commit 73b9bced17e8981fd5d37f6b9a771ca3698e6ce9
Author: ENJOU1224 <enjou1...@outlook.com>
AuthorDate: Mon Jan 5 18:32:05 2026 +0800

    boards/risc-v: Enable VPU initialization for QEMU RV
    
    The riscv_vpuconfig() was defined but never called in qemu_rv_start. This 
caused mstatus.VS to remain disabled, leading to Illegal Instruction exceptions 
when the OS attempted to use vector registers. This patch adds the missing 
initialization call.
    
    Signed-off-by: ENJOU1224 <enjou1...@outlook.com>
---
 arch/risc-v/src/qemu-rv/qemu_rv_start.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/risc-v/src/qemu-rv/qemu_rv_start.c 
b/arch/risc-v/src/qemu-rv/qemu_rv_start.c
index 0128ba1d1b2..de4c49a671a 100644
--- a/arch/risc-v/src/qemu-rv/qemu_rv_start.c
+++ b/arch/risc-v/src/qemu-rv/qemu_rv_start.c
@@ -166,10 +166,12 @@ void qemu_rv_start(int mhartid, const char *dtb)
     }
 #endif
 
-  /* Configure FPU */
+  /* Configure FPU and VPU */
 
   riscv_fpuconfig();
 
+  riscv_vpuconfig();
+
   if (mhartid > 0)
     {
       goto cpux;