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target/loongarch: Fix CSR STLBPS register write emulation

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Function helper_csrwr_stlbps() is emulation with CSR STLBPS register
write operation. However there is only parameter checking action, and
no register updating action. Here update value of CSR_STLBPS when
parameter passes to check.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
This commit is contained in:
Bibo Mao 2025-06-18 10:51:34 +08:00
parent e5de64ae02
commit 5a2e76fc87
1 changed files with 4 additions and 0 deletions
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4
target/loongarch/tcg/csr_helper.c
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@ -29,7 +29,11 @@ target_ulong helper_csrwr_stlbps(CPULoongArchState *env, target_ulong val)
if (!check_ps(env, tlb_ps)) {
qemu_log_mask(LOG_GUEST_ERROR,
"Attempted set ps %d\n", tlb_ps);
} else {
/* Only update PS field, reserved bit keeps zero */
env->CSR_STLBPS = FIELD_DP64(old_v, CSR_STLBPS, PS, tlb_ps);
}
return old_v;
}