summaryrefslogtreecommitdiff
path: root/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
AgeCommit message (Collapse)Author
2016-04-29UefiCpuPkg/MtrrLib: Remove the loop of calculating Fixed-MTRR MaskJeff Fan
Introduce the 32bit mask seeds to calculate Fixed-MTRR or&and mask values. It could avoid the loop operation and 64bit shift operations. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-04-29UefiCpuPkg/MtrrLib: Remove the loop of calculating byte offset in MSRJeff Fan
Calculate byte offset in MSR directly and removing the loop. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-04-29UefiCpuPkg/MtrrLib: Reduce the loop time to get fixed-MTRR MSR indexJeff Fan
Add input fixed-MTRR MSR index to be start MSR index to avoid finding fixed-MTRR MSR index from 0 at each time. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com>
2016-03-25UefiCpuPkg/MtrrLib: remove unused but set variableArd Biesheuvel
Remove variable TempQWord that is declared, assigned but never referenced. This fixes a warning emitted by GCC when -Wunused-but-set-variable is in effect. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Cc: Jeff Fan <jeff.fan@intel.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com>
2015-12-10UefiCpuPkg/MtrrLib:Initialize local variables before use themJeff Fan
Cc: Shumin Qiu <shumin.qiu@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Shumin Qiu <shumin.qiu@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19183 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add MtrrSetMemoryAttributeInMtrrSettings()Michael Kinney
Add new API MtrrSetMemoryAttributeInMtrrSettings() in MtrrLib. Platform could use this API to set MTRR setting into local MTRR settings buffer instead of MTRRs. At last, platform could use MtrrSetAllMtrrs() to set the MTRR settings into MTRRs totally. It could improve MTRRs programming performance obviously, specially when platform is going to program a set of MTRRs. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19162 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add MtrrDebugPrintAllMtrrsWorker()Michael Kinney
MtrrDebugPrintAllMtrrsWorker() provides the capability to dump the MTRR setting from MTRRs or the input MTRR settings buffer. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19161 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add worker functions to access MTRRs or variableMichael Kinney
Add worker functions that could access MTRRs or MTRR settings in input buffer. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19160 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Print MTRR settings when set fixed/variable MTRRsMichael Kinney
Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19159 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Reduce hardware init when program variable MTRRsMichael Kinney
When MtrrSetMemoryAttribute() programs variable MTRRs, it may disable/enable cache and disable/enable MTRRs several times. This updating tries to do operation in local variable and does the hardware initialization one time only. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19158 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Reduce hardware init when program fixed MTRRsMichael Kinney
When MtrrSetMemoryAttribute() programs fixed MTRRs, it may disable/enable cache and disable/enable MTRRs several times. This updating tries to do operation in local variable and does the hardware initialization one time only. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19157 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add MtrrGetMemoryAttributeInVariableMtrrWorker ()Michael Kinney
Add function to shadow the content of variable MTRRs into an internal array: VariableMtrr. And used MtrrGetMemoryAttributeInVariableMtrrWorker() in other functions. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19156 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Make use of worker functions to get MTRRs countMichael Kinney
Try to make use of worker functions to get MTRRs count. It could avoid invoking IsMtrrSupported() for many times. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19155 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Adjust functions orderMichael Kinney
Only adjust functions order and there is no any real functionality impact. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19154 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add worker functions not invoke IsMtrrSupported()Michael Kinney
Abstract some worker functions not to invoke IsMtrrSupported(). They could be used by other functions to reduce the number of invoking times on IsMtrrSupported(). Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19153 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Fix some typo and clean up code formatMichael Kinney
Fixed some typo. Removed some trailing spaces and TAB key. Clean up code format. Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19152 6f19259b-4bc3-4df7-8a09-765794883524
2015-12-08UefiCpuPkg/MtrrLib: Add PCD PcdCpuNumberOfReservedVariableMtrrsJeff Fan
Current MtrrLib reserves 2 variable MTRRs for some legacy OS boot (CSM boots) may require some MTRRs to be reserved for OS use. But UEFI OS boot will not use MTRRs. Per Scott's suggestion in link: http://article.gmane.org/gmane.comp.bios.edk2.devel/4099 Add one PCD PcdCpuNumberOfReservedVariableMtrrs to specify the number of variable MTRRs reserved for OS use. Setting its default value to 2 is for back-compatibility. Cc: Scott Duplichan <scott@notabs.org> Cc: Feng Tian <feng.tian@intel.com> Cc: Michael Kinney <michael.d.kinney@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Suggested-by: Scott Duplichan <scott@notabs.org> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19151 6f19259b-4bc3-4df7-8a09-765794883524
2015-09-05UefiCpuPkg/MtrrLib: MtrrValidBitsMask and MtrrValidAddressMask wrongJeff Fan
Per IA32 SDM, if CPUID.80000008H is not available, software may assume that the processor supports a 36-bit physical address size. However, for such old processors (For example, Quark processor), MtrrValidBitsMask and MtrrValidAddressMask values are reverted and wrong in MtrrLib. MtrrValidBitsMask should be 0xFFFFFFFFFULL and MtrrValidAddressMask should be 0xFFFFFF000ULL. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18396 6f19259b-4bc3-4df7-8a09-765794883524
2014-01-07MtrrDebugPrintAllMtrrs() should loop until the max physical address is reached. Jeff Fan
GetMemoryCacheTypeFromMtrrType () should return the default memory type instead of UC type for MTRR_CACHE_INVALID_TYPE. Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15053 6f19259b-4bc3-4df7-8a09-765794883524
2012-10-10Add missing parameter in functions header.vanjeff
signed-off-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13815 6f19259b-4bc3-4df7-8a09-765794883524
2012-09-27Save and disable CPU interrupt before programming MTRR settings, and restore ↵vanjeff
the CPU interrupt after programming MTRR setting. signed-off-by: Kinney, Michael D <michael.d.kinney@intel.com> reviewed-by: Bjorge, Erik C <erik.c.bjorge@intel.com> reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13749 6f19259b-4bc3-4df7-8a09-765794883524
2012-04-11UefiCpuPkg MtrrLib: For MtrrSetAllMtrrs(), do not set FE/E bits in ↵rsun3
IA32_MTRR_DEF_TYPE MSR after the MSR is restored. Signed-off-by: Sun Rui <rui.sun@intel.com> Reviewed-by: Fan Jeff <jeff.fan@intel.com> Reviewed-by: Michael Kinney <michael.d.kinney@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13182 6f19259b-4bc3-4df7-8a09-765794883524
2011-11-25UefiCpuPkg MTRR Library: Remove a buggy check logic in ↵rsun3
MtrrSetMemoryAttribute() that may incorrectly RETURN_OUT_OF_RESOURCES in some cases. Signed-off-by: rsun3 Reviewed-by: vanjeff git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12780 6f19259b-4bc3-4df7-8a09-765794883524
2011-10-281. Introduce the API MtrrGetDefaultMemoryType () in Mtrr Library.vanjeff
2. Invoke MtrrGetDefaultMemoryType() to get the default memory type instead of the hard code value in module. 3. Add go though for UC attributes. Signed-off-by: vanjeff Reviewed-by: rsun3 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12587 6f19259b-4bc3-4df7-8a09-765794883524
2011-09-20UefiCpuPkg MTRR Library: enhance MTRR Library.rsun3
When it finds that a request range is covered by an existing MTRR with same cache type, the MTRR library set a flag and continues to check other MTRRs and invalidate any MTRR of the same request range with a higher-priority cache type. Signed-off-by: rsun3 Reviewed-by: gxing git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12388 6f19259b-4bc3-4df7-8a09-765794883524
2011-09-13Enhance the MTRR lib to support the case where alignment of base address < ↵rsun3
length. Signed-off by: rsun3 Reviewed-by: hhuan13 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12330 6f19259b-4bc3-4df7-8a09-765794883524
2011-01-11Remove extra {} inside DEBUG_CODE() macromdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11244 6f19259b-4bc3-4df7-8a09-765794883524
2011-01-07Fix 32-bit build breakmdkinney
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11235 6f19259b-4bc3-4df7-8a09-765794883524
2011-01-06Add DEBUG() macros for DEBUG_CACHE to MTRR Library show all changes memory ↵mdkinney
caches setting changes. If DEBUG_PROPERTY_DEBUG_CODE_ENABLED is also set in PcdDebugPropertyMask, then the entire set of MTRRs will be displayed on every memory cache setting change. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11231 6f19259b-4bc3-4df7-8a09-765794883524
2010-08-10Add boundary check against variable MTRR count.xli24
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10787 6f19259b-4bc3-4df7-8a09-765794883524
2010-07-13Code refinement.xli24
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10647 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-24Update the copyright notice formathhtian
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10429 6f19259b-4bc3-4df7-8a09-765794883524
2010-04-16Fixed GCC 4.4 build issues due to EFIAPI not being used when required.geekboy15a
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10380 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-10Add Checking for MTRR existence.xli24
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10223 6f19259b-4bc3-4df7-8a09-765794883524
2010-03-04Add array index check to avoid potential buffer overflow.xli24
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10179 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-14Use atomic AsmDisableCache() and AsmDisableCache() functions instead of ↵mdkinney
AsmWriteCr0() and AsmWbinvd() calls git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9998 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-05Revert incompatible change:jyao1
1) No API change from old version. 2) Change MACRO: #define MTRR_NUMBER_OF_VARIABLE_MTRR 32 // the semantics are changed from NUMBER to MAX_NUMBER. #define FIRMWARE_VARIABLE_MTRR_NUMBER 6 // wrong and deprecated #define MTRR_LIB_IA32_VARIABLE_MTRR_END 0x20F // wrong and deprecated #define RESERVED_FIRMWARE_VARIABLE_MTRR_NUMBER 2 // add new one. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9941 6f19259b-4bc3-4df7-8a09-765794883524
2010-02-05Original MTRR lib hardcode VARIABLE_MTRR as 8. But it is 7 in Core2 if SMRR ↵jyao1
enabled, and 10 in latest Corei7. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9935 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-27Add MTRR library for IA32 & X64 processor architectures.jljusten
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8394 6f19259b-4bc3-4df7-8a09-765794883524
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-02 22:08:31 +0000