sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

IntelSiliconPkg/IntelVTd: update PlatformVtdPolicy

Browse Source 
1. Handle flexible exception list format.
1.1 Handle DeviceScope based device info.
1.2 Handle PciDeviceId based device info.
2. Reorg the PCI_DEVICE_INFORMATION
2.1 Merge data pointer reduce allocation times
2.2 Add PCI device id to PCI_DEVICE_INFORMATION
2.3 Rename PciDescriptor to avoid confusing.
3. Fix the debug message too long issue.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Jiewen Yao
2017-08-25 14:46:07 +08:00
parent 71872f7cda
commit f77d35c7f0
7 changed files with 423 additions and 161 deletions
Download Patch File Download Diff File Expand all files Collapse all files

119
IntelSiliconPkg/IntelVTdDxe/DmaProtection.h
View File

@@ -50,19 +50,24 @@
#define ALIGN_VALUE_LOW(Value, Alignment) ((Value) & (~((Alignment) - 1)))
//
// This is the initial max PCI descriptor.
// This is the initial max PCI DATA number.
// The number may be enlarged later.
//
#define MAX_PCI_DESCRIPTORS 0x100
#define MAX_VTD_PCI_DATA_NUMBER 0x100
typedef struct {
BOOLEAN IncludeAllFlag;
UINTN PciDescriptorNumber;
UINTN PciDescriptorMaxNumber;
BOOLEAN *IsRealPciDevice;
VTD_SOURCE_ID *PciDescriptors;
UINT8 DeviceType;
VTD_SOURCE_ID PciSourceId;
EDKII_PLATFORM_VTD_PCI_DEVICE_ID PciDeviceId;
// for statistic analysis
UINTN *AccessCount;
UINTN AccessCount;
} PCI_DEVICE_DATA;
typedef struct {
BOOLEAN IncludeAllFlag;
UINTN PciDeviceDataNumber;
UINTN PciDeviceDataMaxNumber;
PCI_DEVICE_DATA *PciDeviceData;
} PCI_DEVICE_INFORMATION;
typedef struct {
@@ -78,6 +83,29 @@ typedef struct {
PCI_DEVICE_INFORMATION PciDeviceInfo;
} VTD_UNIT_INFORMATION;
/**
The scan bus callback function.
It is called in PCI bus scan for each PCI device under the bus.
@param[in] Context The context of the callback.
@param[in] Segment The segment of the source.
@param[in] Bus The bus of the source.
@param[in] Device The device of the source.
@param[in] Function The function of the source.
@retval EFI_SUCCESS The specific PCI device is processed in the callback.
**/
typedef
EFI_STATUS
(EFIAPI *SCAN_BUS_FUNC_CALLBACK_FUNC) (
IN VOID *Context,
IN UINT16 Segment,
IN UINT8 Bus,
IN UINT8 Device,
IN UINT8 Function
);
extern EFI_ACPI_DMAR_HEADER *mAcpiDmarTable;
extern UINT64 mVtdHostAddressWidthMask;
@@ -182,13 +210,12 @@ DumpVtdECapRegs (
);
/**
Register PCI device to VTd engine as PCI descriptor.
Register PCI device to VTd engine.
@param[in] VtdIndex The index of VTd engine.
@param[in] Segment The segment of the source.
@param[in] SourceId The SourceId of the source.
@param[in] IsRealPciDevice TRUE: It is a real PCI device.
FALSE: It is not a real PCI device.
@param[in] DeviceType The DMAR device scope type.
@param[in] CheckExist TRUE: ERROR will be returned if the PCI device is already registered.
FALSE: SUCCESS will be returned if the PCI device is registered.
@@ -201,25 +228,47 @@ RegisterPciDevice (
IN UINTN VtdIndex,
IN UINT16 Segment,
IN VTD_SOURCE_ID SourceId,
IN BOOLEAN IsRealPciDevice,
IN UINT8 DeviceType,
IN BOOLEAN CheckExist
);
/**
Scan PCI bus and register PCI devices under the bus.
The scan bus callback function to always enable page attribute.
@param[in] VtdIndex The index of VTd engine.
@param[in] Context The context of the callback.
@param[in] Segment The segment of the source.
@param[in] Bus The bus of the source.
@param[in] Device The device of the source.
@param[in] Function The function of the source.
@retval EFI_SUCCESS The PCI devices under the bus are registered.
@retval EFI_OUT_OF_RESOURCES No enough resource to register a new PCI device.
@retval EFI_SUCCESS The VTd entry is updated to always enable all DMA access for the specific device.
**/
EFI_STATUS
EFIAPI
ScanBusCallbackRegisterPciDevice (
IN VOID *Context,
IN UINT16 Segment,
IN UINT8 Bus,
IN UINT8 Device,
IN UINT8 Function
);
/**
Scan PCI bus and invoke callback function for each PCI devices under the bus.
@param[in] Context The context of the callback function.
@param[in] Segment The segment of the source.
@param[in] Bus The bus of the source.
@param[in] Callback The callback function in PCI scan.
@retval EFI_SUCCESS The PCI devices under the bus are scaned.
**/
EFI_STATUS
ScanPciBus (
IN UINTN VtdIndex,
IN UINT16 Segment,
IN UINT8 Bus
IN VOID *Context,
IN UINT16 Segment,
IN UINT8 Bus,
IN SCAN_BUS_FUNC_CALLBACK_FUNC Callback
);
/**
@@ -240,8 +289,8 @@ DumpPciDeviceInfo (
@param[out] ExtContextEntry The ExtContextEntry of the source.
@param[out] ContextEntry The ContextEntry of the source.
@return The index of the PCI descriptor.
@retval (UINTN)-1 The PCI descriptor is not found.
@return The index of the VTd engine.
@retval (UINTN)-1 The VTd engine is not found.
**/
UINTN
FindVtdIndexByPciDevice (
@@ -371,17 +420,17 @@ SetAccessAttribute (
);
/**
Return the index of PCI descriptor.
Return the index of PCI data.
@param[in] VtdIndex The index used to identify a VTd engine.
@param[in] Segment The Segment used to identify a VTd engine.
@param[in] SourceId The SourceId used to identify a VTd engine and table entry.
@return The index of the PCI descriptor.
@retval (UINTN)-1 The PCI descriptor is not found.
@return The index of the PCI data.
@retval (UINTN)-1 The PCI data is not found.
**/
UINTN
GetPciDescriptor (
GetPciDataIndex (
IN UINTN VtdIndex,
IN UINT16 Segment,
IN VTD_SOURCE_ID SourceId
@@ -490,4 +539,24 @@ FlushPageTableMemory (
IN UINTN Size
);
/**
Get PCI device information from DMAR DevScopeEntry.
@param[in] Segment The segment number.
@param[in] DmarDevScopeEntry DMAR DevScopeEntry
@param[out] Bus The bus number.
@param[out] Device The device number.
@param[out] Function The function number.
@retval EFI_SUCCESS The PCI device information is returned.
**/
EFI_STATUS
GetPciBusDeviceFunction (
IN UINT16 Segment,
IN EFI_ACPI_DMAR_DEVICE_SCOPE_STRUCTURE_HEADER *DmarDevScopeEntry,
OUT UINT8 *Bus,
OUT UINT8 *Device,
OUT UINT8 *Function
);
#endif