From eca40ff053200039ed528f9b1530d44d8c90232f Mon Sep 17 00:00:00 2001
From: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
Date: Wed, 27 Nov 2024 15:48:33 +0100
Subject: [PATCH] arch/x86_64/intel64: re-enable interrupts before syscall
 handle

arch/x86_64/intel64: re-enable interrupts before syscall handle
---
 arch/x86_64/src/common/x86_64_syscall.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86_64/src/common/x86_64_syscall.c b/arch/x86_64/src/common/x86_64_syscall.c
index 216727a2ca2c3..d00a1f324ad38 100644
--- a/arch/x86_64/src/common/x86_64_syscall.c
+++ b/arch/x86_64/src/common/x86_64_syscall.c
@@ -302,6 +302,15 @@ uint64_t *x86_64_syscall(uint64_t *regs)
           rtcb->xcp.saved_ursp = regs[REG_RSP];
 #endif
 
+          /* Re-enable interrupts if enabled before.
+           * Current task RFLAGS are stored in R11.
+           */
+
+          if (regs[REG_R11] & X86_64_RFLAGS_IF)
+            {
+              up_irq_restore(X86_64_RFLAGS_IF);
+            }
+
           /* Call syscall function */
 
           ret = stub(nbr, arg1, arg2, arg3, arg4, arg5, arg6);