diff options
Diffstat (limited to 'PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c')
| -rw-r--r-- | PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c | 328 |
1 files changed, 7 insertions, 321 deletions
diff --git a/PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c b/PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c index 35da1fcf5f..14d1e56ab8 100644 --- a/PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c +++ b/PrmPkg/Samples/PrmSampleHardwareAccessModule/PrmSampleHardwareAccessModule.c @@ -12,7 +12,6 @@ #include <Library/BaseLib.h>
#include <Library/MtrrLib.h>
-#include <Library/PrintLib.h>
#include <Library/UefiLib.h>
#include <Register/Intel/ArchitecturalMsr.h>
@@ -27,21 +26,12 @@ // {2120cd3c-848b-4d8f-abbb-4b74ce64ac89}
#define MSR_ACCESS_MICROCODE_SIGNATURE_PRM_HANDLER_GUID {0x2120cd3c, 0x848b, 0x4d8f, {0xab, 0xbb, 0x4b, 0x74, 0xce, 0x64, 0xac, 0x89}}
-// {5d28b4e7-3867-4aee-aa09-51fc282c3b22}
-#define MSR_PRINT_MICROCODE_SIGNATURE_PRM_HANDLER_GUID {0x5d28b4e7, 0x3867, 0x4aee, {0xaa, 0x09, 0x51, 0xfc, 0x28, 0x2c, 0x3b, 0x22}}
-
// {ea0935a7-506b-4159-bbbb-48deeecb6f58}
#define MSR_ACCESS_MTRR_DUMP_PRM_HANDLER_GUID {0xea0935a7, 0x506b, 0x4159, {0xbb, 0xbb, 0x48, 0xde, 0xee, 0xcb, 0x6f, 0x58}}
-// {4b64b702-4d2b-4dfe-ac5a-0b4110a2ca47}
-#define MSR_PRINT_MTRR_DUMP_PRM_HANDLER_GUID {0x4b64b702, 0x4d2b, 0x4dfe, {0xac, 0x5a, 0x0b, 0x41, 0x10, 0xa2, 0xca, 0x47}}
-
// {1bd1bda9-909a-4614-9699-25ec0c2783f7}
#define MMIO_ACCESS_HPET_PRM_HANDLER_GUID {0x1bd1bda9, 0x909a, 0x4614, {0x96, 0x99, 0x25, 0xec, 0x0c, 0x27, 0x83, 0xf7}}
-// {8a0efdde-78d0-45f0-aea0-c28245c7e1db}
-#define MMIO_PRINT_HPET_PRM_HANDLER_GUID {0x8a0efdde, 0x78d0, 0x45f0, {0xae, 0xa0, 0xc2, 0x82, 0x45, 0xc7, 0xe1, 0xdb}}
-
//
// BEGIN: MtrrLib internal library globals and function prototypes here for testing
//
@@ -133,27 +123,19 @@ MtrrLibApplyVariableMtrrs ( /**
Accesses MTRR values including architectural and variable MTRRs.
- If the optional OsServiceDebugPrint function pointer is provided that function is
- used to print the MTRR settings.
-
- @param[in] OsServiceDebugPrint A pointer to an OS-provided debug print function.
-
**/
VOID
EFIAPI
AccessAllMtrrs (
- IN PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint OPTIONAL
+ VOID
)
{
MTRR_SETTINGS LocalMtrrs;
MTRR_SETTINGS *Mtrrs;
- UINTN Index;
UINTN RangeCount;
UINT64 MtrrValidBitsMask;
UINT64 MtrrValidAddressMask;
UINT32 VariableMtrrCount;
- BOOLEAN ContainVariableMtrr;
- CHAR8 DebugMessage[256];
MTRR_MEMORY_RANGE Ranges[
MTRR_NUMBER_OF_FIXED_MTRR * sizeof (UINT64) + 2 * ARRAY_SIZE (Mtrrs->Variables.Mtrr) + 1
@@ -169,66 +151,6 @@ AccessAllMtrrs ( MtrrGetAllMtrrs (&LocalMtrrs);
Mtrrs = &LocalMtrrs;
- //
- // Dump RAW MTRR contents
- //
- if (OsServiceDebugPrint != NULL) {
- OsServiceDebugPrint (" MTRR Settings:\n");
- OsServiceDebugPrint (" =============\n");
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " MTRR Default Type: %016lx\n",
- Mtrrs->MtrrDefType
- );
- OsServiceDebugPrint (&DebugMessage[0]);
- }
-
- if (OsServiceDebugPrint != NULL) {
- for (Index = 0; Index < MTRR_NUMBER_OF_FIXED_MTRR; Index++) {
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " Fixed MTRR[%02d] : %016lx\n",
- Index,
- Mtrrs->Fixed.Mtrr[Index]
- );
- OsServiceDebugPrint (&DebugMessage[0]);
- }
-
- ContainVariableMtrr = FALSE;
- for (Index = 0; Index < VariableMtrrCount; Index++) {
- if ((Mtrrs->Variables.Mtrr[Index].Mask & BIT11) == 0) {
- //
- // If mask is not valid, then do not display range
- //
- continue;
- }
- ContainVariableMtrr = TRUE;
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " Variable MTRR[%02d]: Base=%016lx Mask=%016lx\n",
- Index,
- Mtrrs->Variables.Mtrr[Index].Base,
- Mtrrs->Variables.Mtrr[Index].Mask
- );
- OsServiceDebugPrint (&DebugMessage[0]);
- }
- if (!ContainVariableMtrr) {
- OsServiceDebugPrint (" Variable MTRR : None.\n");
- }
- OsServiceDebugPrint ("\n");
- }
-
- //
- // Dump MTRR setting in ranges
- //
- if (OsServiceDebugPrint != NULL) {
- OsServiceDebugPrint (" Memory Ranges:\n");
- OsServiceDebugPrint (" ====================================\n");
- }
MtrrLibInitializeMtrrMask (&MtrrValidBitsMask, &MtrrValidAddressMask);
Ranges[0].BaseAddress = 0;
Ranges[0].Length = MtrrValidBitsMask + 1;
@@ -245,19 +167,6 @@ AccessAllMtrrs ( );
MtrrLibApplyFixedMtrrs (&Mtrrs->Fixed, Ranges, ARRAY_SIZE (Ranges), &RangeCount);
-
- if (OsServiceDebugPrint != NULL) {
- for (Index = 0; Index < RangeCount; Index++) {
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " %a:%016lx-%016lx\n",
- mMtrrMemoryCacheTypeShortName[Ranges[Index].Type],
- Ranges[Index].BaseAddress, Ranges[Index].BaseAddress + Ranges[Index].Length - 1
- );
- OsServiceDebugPrint (&DebugMessage[0]);
- }
- }
}
/**
@@ -300,104 +209,15 @@ HpetRead ( /**
Accesses HPET configuration information.
- If the optional OsServiceDebugPrint function pointer is provided that function is
- used to print HPET settings.
-
- @param[in] OsServiceDebugPrint A pointer to an OS-provided debug print function
-
**/
VOID
EFIAPI
AccessHpetConfiguration (
- IN PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint
+ VOID
)
{
- UINTN TimerIndex;
- HPET_GENERAL_CAPABILITIES_ID_REGISTER HpetGeneralCapabilities;
- HPET_GENERAL_CONFIGURATION_REGISTER HpetGeneralConfiguration;
- CHAR8 DebugMessage[256];
-
- HpetGeneralCapabilities.Uint64 = HpetRead (HPET_GENERAL_CAPABILITIES_ID_OFFSET);
- HpetGeneralConfiguration.Uint64 = HpetRead (HPET_GENERAL_CONFIGURATION_OFFSET);
-
- if (OsServiceDebugPrint != NULL) {
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET Base Address = 0x%08x\n",
- HPET_BASE_ADDRESS
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_GENERAL_CAPABILITIES_ID = 0x%016lx\n",
- HpetGeneralCapabilities
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_GENERAL_CONFIGURATION = 0x%016lx\n",
- HpetGeneralConfiguration.Uint64
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_GENERAL_INTERRUPT_STATUS = 0x%016lx\n",
- HpetRead (HPET_GENERAL_INTERRUPT_STATUS_OFFSET)
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_MAIN_COUNTER = 0x%016lx\n",
- HpetRead (HPET_MAIN_COUNTER_OFFSET)
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET Main Counter Period = %d (fs)\n",
- HpetGeneralCapabilities.Bits.CounterClockPeriod
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- for (TimerIndex = 0; TimerIndex <= HpetGeneralCapabilities.Bits.NumberOfTimers; TimerIndex++) {
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_TIMER%d_CONFIGURATION = 0x%016lx\n",
- TimerIndex,
- HpetRead (HPET_TIMER_CONFIGURATION_OFFSET + TimerIndex * HPET_TIMER_STRIDE)
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_TIMER%d_COMPARATOR = 0x%016lx\n",
- TimerIndex,
- HpetRead (HPET_TIMER_COMPARATOR_OFFSET + TimerIndex * HPET_TIMER_STRIDE)
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " HPET_TIMER%d_MSI_ROUTE = 0x%016lx\n",
- TimerIndex,
- HpetRead (HPET_TIMER_MSI_ROUTE_OFFSET + TimerIndex * HPET_TIMER_STRIDE)
- );
- OsServiceDebugPrint (&DebugMessage[0]);
- }
- }
+ HpetRead (HPET_GENERAL_CAPABILITIES_ID_OFFSET);
+ HpetRead (HPET_GENERAL_CONFIGURATION_OFFSET);
}
/**
@@ -420,34 +240,6 @@ GetMicrocodeSignature ( }
/**
- Prints the microcode update signature as read from architectural MSR 0x8B.
-
-**/
-VOID
-EFIAPI
-PrintMicrocodeUpdateSignature (
- IN PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint
- )
-{
- UINT32 MicrocodeSignature;
- CHAR8 DebugMessage[256];
-
- if (OsServiceDebugPrint == NULL) {
- return;
- }
-
- MicrocodeSignature = GetMicrocodeSignature ();
-
- AsciiSPrint (
- &DebugMessage[0],
- ARRAY_SIZE (DebugMessage),
- " Signature read = 0x%x.\n",
- MicrocodeSignature
- );
- OsServiceDebugPrint (&DebugMessage[0]);
-}
-
-/**
A sample Platform Runtime Mechanism (PRM) handler.
This sample handler attempts to read the microcode update signature.
@@ -476,40 +268,6 @@ PRM_HANDLER_EXPORT (MsrAccessMicrocodeSignaturePrmHandler) /**
A sample Platform Runtime Mechanism (PRM) handler.
- This sample handler attempts to read the microcode update signature MSR and print the result to a debug message.
-
- @param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
- @param[in] ContextBUffer A pointer to the PRM handler context buffer
-
- @retval EFI_STATUS The PRM handler executed successfully.
- @retval Others An error occurred in the PRM handler.
-
-**/
-PRM_HANDLER_EXPORT (MsrPrintMicrocodeSignaturePrmHandler)
-{
- PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
-
- if (ParameterBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // The OS debug print service is assumed to be at the beginning of ParameterBuffer
- OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
- if (OsServiceDebugPrint == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- OsServiceDebugPrint ("Hardware Access MsrAccessMicrocodeSignaturePrmHandler entry.\n");
- OsServiceDebugPrint (" Attempting to read the Microcode Update Signature MSR (0x8B)...\n");
- PrintMicrocodeUpdateSignature (OsServiceDebugPrint);
- OsServiceDebugPrint ("Hardware Access MsrAccessMicrocodeSignaturePrmHandler exit.\n");
-
- return EFI_SUCCESS;
-}
-
-/**
- A sample Platform Runtime Mechanism (PRM) handler.
-
This sample handler attempts to read the current MTRR settings.
@param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
@@ -521,46 +279,11 @@ PRM_HANDLER_EXPORT (MsrPrintMicrocodeSignaturePrmHandler) **/
PRM_HANDLER_EXPORT (MsrAccessMtrrDumpPrmHandler)
{
- AccessAllMtrrs (NULL);
-
- return EFI_SUCCESS;
-}
-
-/**
- A sample Platform Runtime Mechanism (PRM) handler.
-
- This sample handler attempts to read the current MTRR settings and print the result to a debug message.
-
- @param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
- @param[in] ContextBUffer A pointer to the PRM handler context buffer
-
- @retval EFI_STATUS The PRM handler executed successfully.
- @retval Others An error occurred in the PRM handler.
-
-**/
-PRM_HANDLER_EXPORT (MsrPrintMtrrDumpPrmHandler)
-{
- PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
-
- if (ParameterBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // In the POC, the OS debug print service is assumed to be at the beginning of ParameterBuffer
- OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
- if (OsServiceDebugPrint == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- OsServiceDebugPrint ("Hardware Access MsrAccessMtrrDumpPrmHandler entry.\n");
- OsServiceDebugPrint (" Attempting to dump MTRR values:\n");
- AccessAllMtrrs (OsServiceDebugPrint);
- OsServiceDebugPrint ("Hardware Access MsrAccessMtrrDumpPrmHandler exit.\n");
+ AccessAllMtrrs ();
return EFI_SUCCESS;
}
-
/**
A sample Platform Runtime Mechanism (PRM) handler.
@@ -575,41 +298,7 @@ PRM_HANDLER_EXPORT (MsrPrintMtrrDumpPrmHandler) **/
PRM_HANDLER_EXPORT (MmioAccessHpetPrmHandler)
{
- AccessHpetConfiguration (NULL);
-
- return EFI_SUCCESS;
-}
-
-/**
- A sample Platform Runtime Mechanism (PRM) handler.
-
- This sample handler attempts to read from a HPET MMIO resource and print the result to a debug message.
-
- @param[in] ParameterBuffer A pointer to the PRM handler parameter buffer
- @param[in] ContextBUffer A pointer to the PRM handler context buffer
-
- @retval EFI_STATUS The PRM handler executed successfully.
- @retval Others An error occurred in the PRM handler.
-
-**/
-PRM_HANDLER_EXPORT (MmioPrintHpetPrmHandler)
-{
- PRM_OS_SERVICE_DEBUG_PRINT OsServiceDebugPrint;
-
- if (ParameterBuffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- // An OS debug print service is assumed to be at the beginning of ParameterBuffer
- OsServiceDebugPrint = *((PRM_OS_SERVICE_DEBUG_PRINT *) ParameterBuffer);
- if (OsServiceDebugPrint == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- OsServiceDebugPrint ("Hardware Access MmioPrintHpetPrmHandler entry.\n");
- OsServiceDebugPrint (" Attempting to read HPET configuration...\n");
- AccessHpetConfiguration (OsServiceDebugPrint);
- OsServiceDebugPrint ("Hardware Access MmioPrintHpetPrmHandler exit.\n");
+ AccessHpetConfiguration ();
return EFI_SUCCESS;
}
@@ -620,10 +309,7 @@ PRM_HANDLER_EXPORT (MmioPrintHpetPrmHandler) PRM_MODULE_EXPORT (
PRM_HANDLER_EXPORT_ENTRY (MSR_ACCESS_MICROCODE_SIGNATURE_PRM_HANDLER_GUID, MsrAccessMicrocodeSignaturePrmHandler),
PRM_HANDLER_EXPORT_ENTRY (MSR_ACCESS_MTRR_DUMP_PRM_HANDLER_GUID, MsrAccessMtrrDumpPrmHandler),
- PRM_HANDLER_EXPORT_ENTRY (MMIO_ACCESS_HPET_PRM_HANDLER_GUID, MmioAccessHpetPrmHandler),
- PRM_HANDLER_EXPORT_ENTRY (MSR_PRINT_MICROCODE_SIGNATURE_PRM_HANDLER_GUID, MsrPrintMicrocodeSignaturePrmHandler),
- PRM_HANDLER_EXPORT_ENTRY (MSR_PRINT_MTRR_DUMP_PRM_HANDLER_GUID, MsrPrintMtrrDumpPrmHandler),
- PRM_HANDLER_EXPORT_ENTRY (MMIO_PRINT_HPET_PRM_HANDLER_GUID, MmioPrintHpetPrmHandler)
+ PRM_HANDLER_EXPORT_ENTRY (MMIO_ACCESS_HPET_PRM_HANDLER_GUID, MmioAccessHpetPrmHandler)
);
/**
|