X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=UefiCpuPkg%2FLibrary%2FBaseXApicX2ApicLib%2FBaseXApicX2ApicLib.c;h=1cba34cd598e605d3840d24e2f1ba22c5bdc3edc;hp=7ee13c3ba6f594e97820860eb7fa38ccb6c305d4;hb=b1b8c631f613084d43d64d0b9e1d27337d4d8b5a;hpb=9a43bc39a9b038523a9c5678f05cc31c62640bf0

diff --git a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
index 7ee13c3ba6..1cba34cd59 100644
--- a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
+++ b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
@@ -543,6 +543,28 @@ ProgramVirtualWireMode (
   WriteLocalApicReg (XAPIC_LVT_LINT1_OFFSET, Lint.Uint32);
 }
 
+/**
+  Disable LINT0 & LINT1 interrupts.
+
+  This function sets the mask flag in the LVT LINT0 & LINT1 registers.
+**/
+VOID
+EFIAPI
+DisableLvtInterrupts (
+  VOID
+  )
+{
+  LOCAL_APIC_LVT_LINT LvtLint;
+
+  LvtLint.Uint32 = ReadLocalApicReg (XAPIC_LVT_LINT0_OFFSET);
+  LvtLint.Bits.Mask = 1;
+  WriteLocalApicReg (XAPIC_LVT_LINT0_OFFSET, LvtLint.Uint32);
+
+  LvtLint.Uint32 = ReadLocalApicReg (XAPIC_LVT_LINT1_OFFSET);
+  LvtLint.Bits.Mask = 1;
+  WriteLocalApicReg (XAPIC_LVT_LINT1_OFFSET, LvtLint.Uint32);
+}
+
 /**
   Read the initial count value from the init-count register.