From: Pope B.Lei <popeblei@gmail.com>
To: opensbi@lists.infradead.org
Subject: [PATCH v1] "Reset registers to enhance robustness."
Date: Wed, 29 May 2024 15:37:06 +0800 [thread overview]
Message-ID: <20240529073706.1748-1-popeblei@gmail.com> (raw)
Signed-off-by: Pope B.Lei <popeblei@gmail.com>
---
V1: If the registers are not initialized, they may remain in an x-state in certain DV verification environments due to the lack of written values, causing the x-state to propagate during the boot process. Adding register initialization enhances robustness.
firmware/fw_base.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/firmware/fw_base.S b/firmware/fw_base.S
index b950c0b..10889a9 100644
--- a/firmware/fw_base.S
+++ b/firmware/fw_base.S
@@ -36,6 +36,8 @@
.globl _start
.globl _start_warm
_start:
+ /* Reset registers to enhance robustness. */
+ call _reset_regs
/* Find preferred boot HART id */
MOV_3R s0, a0, s1, a1, s2, a2
call fw_boot_hart
--
2.35.2.windows.1
next reply other threads:[~2024-05-29 7:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-29 7:37 Pope B.Lei [this message]
-- strict thread matches above, loose matches on Subject: below --
2024-05-29 7:37 [PATCH v1] "Reset registers to enhance robustness." Pope B.Lei
2024-05-29 7:40 ` Jessica Clarke
2024-05-29 8:18 ` Pope B.Lei
2024-05-30 1:07 ` Xiang W
2024-05-30 2:56 ` Pope B.Lei
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