diff mbox series

[3/3] target/loongarch: Fix PGD CSR for LoongArch32

Message ID 20241222-la32-fixes1-v1-3-8c62b7e594db@flygoat.com (mailing list archive)
State New
Headers show
Series target/loongarch: LoongArch32 fixes 1 | expand

Commit Message

Jiaxun Yang Dec. 22, 2024, 11:40 p.m. UTC 
As per manual, the source of PGD CSR is relevant to highest bit of
BADV. In LoongArch32, all CSRs are 32 bits only, thus we should check
bit 31 of BADV to determine PGDH/PGDL for LoongArch32.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 target/loongarch/tcg/csr_helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/target/loongarch/tcg/csr_helper.c b/target/loongarch/tcg/csr_helper.c
index 15f94caefabc7722263fa46e948e21de37b4203c..ca8100eedfb37fd3b45b3de0c0fc0fad599c4685 100644
--- a/target/loongarch/tcg/csr_helper.c
+++ b/target/loongarch/tcg/csr_helper.c
@@ -26,7 +26,7 @@  target_ulong helper_csrrd_pgd(CPULoongArchState *env)
         v = env->CSR_BADV;
     }
 
-    if ((v >> 63) & 0x1) {
+    if (v >> (is_la64(env) ? 63 : 31) & 0x1) {
         v = env->CSR_PGDH;
     } else {
         v = env->CSR_PGDL;