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authorrsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524>2010-08-27 03:46:18 +0000
committerrsun3 <rsun3@6f19259b-4bc3-4df7-8a09-765794883524>2010-08-27 03:46:18 +0000
commitb1b8c631f613084d43d64d0b9e1d27337d4d8b5a (patch)
treef017aa293e3eba38be46d8c1731b003070a52f61
parent9a43bc39a9b038523a9c5678f05cc31c62640bf0 (diff)
downloadedk2-platforms-b1b8c631f613084d43d64d0b9e1d27337d4d8b5a.tar.xz
Add DisableLvtInterrupts() for the Local APIC library class.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10827 6f19259b-4bc3-4df7-8a09-765794883524
-rw-r--r--UefiCpuPkg/Include/Library/LocalApicLib.h11
-rw-r--r--UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c22
-rw-r--r--UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c22
3 files changed, 55 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Library/LocalApicLib.h b/UefiCpuPkg/Include/Library/LocalApicLib.h
index d565dad96c..d68e0e48b9 100644
--- a/UefiCpuPkg/Include/Library/LocalApicLib.h
+++ b/UefiCpuPkg/Include/Library/LocalApicLib.h
@@ -213,6 +213,17 @@ ProgramVirtualWireMode (
);
/**
+ Disable LINT0 & LINT1 interrupts.
+
+ This function sets the mask flag in the LVT LINT0 & LINT1 registers.
+**/
+VOID
+EFIAPI
+DisableLvtInterrupts (
+ VOID
+ );
+
+/**
Read the initial count value from the init-count register.
@return The initial count value read from the init-count register.
diff --git a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
index 1ac3853071..79a0fcd413 100644
--- a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
+++ b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
@@ -461,6 +461,28 @@ ProgramVirtualWireMode (
}
/**
+ 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.
@return The initial count value read from the init-count register.
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
@@ -544,6 +544,28 @@ ProgramVirtualWireMode (
}
/**
+ 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.
@return The initial count value read from the init-count register.