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commit 7975c94d887b307d24008dc7a1af2fa8bd23b6bb Author: lipengfei28 <[email protected]> AuthorDate: Thu Sep 12 17:51:32 2024 +0800 Kernel build: enter exception save sp_sl0,exit exception restroe sp_el0 Signed-off-by: lipengfei28 <[email protected]> --- arch/arm64/src/common/arm64_vector_table.S | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/src/common/arm64_vector_table.S b/arch/arm64/src/common/arm64_vector_table.S index 7ae82d7308..8f58891c54 100644 --- a/arch/arm64/src/common/arm64_vector_table.S +++ b/arch/arm64/src/common/arm64_vector_table.S @@ -78,6 +78,10 @@ #endif stp \xreg0, \xreg1, [sp, #8 * REG_ELR] + mrs \xreg0, sp_el0 + mrs \xreg1, tpidrro_el0 + stp \xreg0, \xreg1, [sp, #8 * REG_SP_EL0] + /* Increment exception depth */ mrs \xreg0, tpidrro_el0 @@ -261,6 +265,10 @@ SECTION_FUNC(text, arm64_exit_exception) msr spsr_el1, x1 #endif + ldp x0, x1, [sp, #8 * REG_SP_EL0] + msr sp_el0, x0 + msr tpidrro_el0, x1 + /* decrement exception depth */ mrs x0, tpidrro_el0
