From: "duntan" <dun.tan@intel.com>
To: devel@edk2.groups.io
Cc: Eric Dong <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Rahul Kumar <rahul1.kumar@intel.com>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: [Patch V5 10/22] UefiCpuPkg/CpuPageTableLib:Modify RandomBoolean() in RandomTest
Date: Fri, 24 Mar 2023 14:00:08 +0800 [thread overview]
Message-ID: <20230324060020.940-11-dun.tan@intel.com> (raw)
In-Reply-To: <20230324060020.940-1-dun.tan@intel.com>
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>
---
UefiCpuPkg/Library/CpuPageTableLib/UnitTest/RandomTest.c | 43 +++++++++++++++++++++----------------------
1 file 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
**/
@@ -81,22 +81,6 @@ 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.
@@ -139,6 +123,21 @@ Random64 (
return (UINT64)(Value % (Limit - Start + 1)) + Start;
}
+/**
+ 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
@@ -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;
}
}
--
2.31.1.windows.1
next prev parent reply other threads:[~2023-03-24 6:00 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-24 5:59 [Patch V5 00/22] Fix issues in CpuPageTableLib duntan
2023-03-24 5:59 ` [Patch V5 01/22] UefiCpuPkg/CpuPageTableLib: Remove unneeded 'if' condition duntan
2023-03-24 6:00 ` [Patch V5 02/22] UefiCpuPkg/CpuPageTableLib: Add check for input Length duntan
2023-03-24 6:00 ` [Patch V5 03/22] UefiCpuPkg/CpuPageTableLib:Initialize some LocalVariable at beginning duntan
2023-03-24 6:00 ` [Patch V5 04/22] UefiCpuPkg/CpuPageTableLib: Fix the non-1:1 mapping issue duntan
2023-03-24 6:00 ` [Patch V5 05/22] UefiCpuPkg/CpuPageTableLib:Clear PageSize bit(Bit7) for non-leaf duntan
2023-03-24 6:00 ` [Patch V5 06/22] UefiCpuPkg/CpuPageTableLib: Fix issue when splitting leaf entry duntan
2023-03-24 6:00 ` [Patch V5 07/22] UefiCpuPkg/MpInitLib: Add code to initialize MapMask duntan
2023-03-24 6:00 ` [Patch V5 08/22] UefiCpuPkg/CpuPageTableLib:Add check for Mask and Attr duntan
2023-03-24 8:06 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 09/22] UefiCpuPkg/CpuPageTableLib: Add manual test to check " duntan
2023-03-24 8:06 ` Ni, Ray
2023-03-24 6:00 ` duntan [this message]
2023-03-24 6:00 ` [Patch V5 11/22] UefiCpuPkg/CpuPageTableLib: Add LastMapEntry pointer duntan
2023-03-24 8:07 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 12/22] UefiCpuPkg/CpuPageTableLib:Modify RandomTest to check Mask/Attr duntan
2023-03-24 8:07 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 13/22] UefiCpuPkg/CpuPageTableLib: Enable non-1:1 mapping in random test duntan
2023-03-24 6:00 ` [Patch V5 14/22] UefiCpuPkg/CpuPageTableLib: Add OUTPUT IsModified parameter duntan
2023-03-24 8:08 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 15/22] UefiCpuPkg/CpuPageTableLib: Modify RandomTest to check IsModified duntan
2023-03-24 6:00 ` [Patch V5 16/22] UefiCpuPkg: Fix IA32 build failure in CpuPageTableLib.inf duntan
2023-03-24 6:00 ` [Patch V5 17/22] UefiCpuPkg: Modify UnitTest code since tested API is changed duntan
2023-03-24 6:00 ` [Patch V5 18/22] UefiCpuPkg/CpuPageTableLib: Add check for page table creation duntan
2023-03-24 6:00 ` [Patch V5 19/22] UefiCpuPkg: Combine branch for non-present and leaf ParentEntry duntan
2023-03-24 8:09 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 20/22] UefiCpuPkg/CpuPageTableLib: Enable PAE paging duntan
2023-03-24 8:10 ` Ni, Ray
2023-03-24 6:00 ` [Patch V5 21/22] UefiCpuPkg/CpuPageTableLib: Add RandomTest for " duntan
2023-03-24 6:00 ` [Patch V5 22/22] UefiCpuPkg/CpuPageTableLib: Reduce the number of random tests duntan
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