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| author | Dun Tan <dun.tan@intel.com> | 2023-03-17 12:09:50 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-03-27 08:21:58 +0000 |
| commit | 661a669c8177d02cf89d03325fd4cb1392af2c99 (patch) | |
| tree | 3afad881e4cd1d004ced4262eb0b962927358caf /UefiCpuPkg | |
| parent | 14ef21e5590eccfa35776f3518e8a7ef0a789a58 (diff) | |
| download | edk2-661a669c8177d02cf89d03325fd4cb1392af2c99.tar.gz edk2-661a669c8177d02cf89d03325fd4cb1392af2c99.tar.bz2 edk2-661a669c8177d02cf89d03325fd4cb1392af2c99.zip | |
UefiCpuPkg/CpuPageTableLib:Modify RandomBoolean() in RandomTest
Add an input parameter to control the probability of returning
true. Change RandomBoolean() in RandomTest from 50% chance
returning true to returning true with the percentage of input
Probability.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'UefiCpuPkg')
| -rw-r--r-- | UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c b/UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c index 97a388ca1c..52eb9daa10 100644 --- a/UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c +++ b/UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c @@ -1,7 +1,7 @@ /** @file
Random test case for Unit tests of the CpuPageTableLib instance of the CpuPageTableLib class
- Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2022 - 2023, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -82,22 +82,6 @@ LocalRandomBytes ( }
/**
- Return a random boolean.
-
- @return boolean
-**/
-BOOLEAN
-RandomBoolean (
- VOID
- )
-{
- BOOLEAN Value;
-
- LocalRandomBytes ((UINT8 *)&Value, sizeof (BOOLEAN));
- return Value%2;
-}
-
-/**
Return a 32bit random number.
@param Start Start of the random number range.
@@ -140,6 +124,21 @@ Random64 ( }
/**
+ Returns true with the percentage of input Probability.
+
+ @param[in] Probability The percentage to return true.
+
+ @return boolean
+**/
+BOOLEAN
+RandomBoolean (
+ UINT8 Probability
+ )
+{
+ return ((Probability > ((UINT8)Random64 (0, 100))) ? TRUE : FALSE);
+}
+
+/**
Check if the Page table entry is valid
@param[in] PagingEntry The entry in page table to verify
@@ -178,7 +177,7 @@ ValidateAndRandomeModifyPageTablePageTableEntry ( UT_ASSERT_EQUAL ((PagingEntry->Uint64 & mValidMaskLeaf[Level].Uint64), PagingEntry->Uint64);
}
- if ((RandomNumber < 100) && RandomBoolean ()) {
+ if ((RandomNumber < 100) && RandomBoolean (50)) {
RandomNumber++;
if (Level == 1) {
TempPhysicalBase = PagingEntry->Pte4K.Bits.PageTableBaseAddress;
@@ -211,7 +210,7 @@ ValidateAndRandomeModifyPageTablePageTableEntry ( UT_ASSERT_EQUAL ((PagingEntry->Uint64 & mValidMaskNoLeaf[Level].Uint64), PagingEntry->Uint64);
}
- if ((RandomNumber < 100) && RandomBoolean ()) {
+ if ((RandomNumber < 100) && RandomBoolean (50)) {
RandomNumber++;
TempPhysicalBase = PagingEntry->Pnle.Bits.PageTableBaseAddress;
@@ -299,7 +298,7 @@ GenerateSingleRandomMapEntry ( //
// use AlignedTable to avoid that a random number can be very hard to be 1G or 2M aligned
//
- if ((MapsIndex != 0) && (RandomBoolean ())) {
+ if ((MapsIndex != 0) && (RandomBoolean (50))) {
FormerLinearAddress = MapEntrys->Maps[Random32 (0, (UINT32)MapsIndex-1)].LinearAddress;
if (FormerLinearAddress < 2 * (UINT64)SIZE_1GB) {
FormerLinearAddressBottom = 0;
@@ -323,7 +322,7 @@ GenerateSingleRandomMapEntry ( //
MapEntrys->Maps[MapsIndex].Length = Random64 (0, MIN (MaxAddress - MapEntrys->Maps[MapsIndex].LinearAddress, 10 * (UINT64)SIZE_1GB)) & AlignedTable[Random32 (0, ARRAY_SIZE (AlignedTable) -1)];
- if ((MapsIndex != 0) && (RandomBoolean ())) {
+ if ((MapsIndex != 0) && (RandomBoolean (50))) {
MapEntrys->Maps[MapsIndex].Attribute.Uint64 = MapEntrys->Maps[Random32 (0, (UINT32)MapsIndex-1)].Attribute.Uint64;
MapEntrys->Maps[MapsIndex].Mask.Uint64 = MapEntrys->Maps[Random32 (0, (UINT32)MapsIndex-1)].Mask.Uint64;
} else {
@@ -344,7 +343,7 @@ GenerateSingleRandomMapEntry ( // Need to avoid such case when remove the Random option ONLY_ONE_ONE_MAPPING
//
MapEntrys->Maps[MapsIndex].Attribute.Bits.PageTableBaseAddress = (Random64 (0, (((UINT64)1)<<52) - 1) & AlignedTable[Random32 (0, ARRAY_SIZE (AlignedTable) -1)])>> 12;
- if (RandomBoolean ()) {
+ if (RandomBoolean (50)) {
MapEntrys->Maps[MapsIndex].Mask.Bits.PageTableBaseAddress = 0;
}
}
|