SysCall: Fixed random crashes of QEMU.

2025-04-07 19:45:07 +02:00 · 2024-05-29 14:24:52 +03:00 · 2024-05-29 14:24:52 +03:00 · 8af0fd53c1
commit 8af0fd53c1
parent c8ed0dc0c1
1 changed files with 3 additions and 0 deletions
--- a/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S
+++ b/MdeModulePkg/Core/Dxe/SysCall/AARCH64/CoreBootServices.S
@ -112,6 +112,9 @@ ASM_FUNC(ArmCallRing3)
 ASM_FUNC(ReturnToCore)
  // Switch to Core Stack.
  mov  sp, x1
+  // Zero Exception Syndrome Register to prevent QEMU from random crashing.
+  mov  x1, #0
+  msr  esr_el1, x1
  // Restore Stack.
  ldp	 x29, x30, [sp]
  add	 sp, sp, #0x10