Re: [ros-dev] [ros-diffs] [tkreuzer] 34970: - update KPCR and KIPCR - add KeGetPcr() and update KeGetCurrentProcessorNumber

[Timo Kreuzer]

You have probably noticed it's in the KIPCR, not the KPCR. I could not 
find KIPCR documented anywhere, but maybe you can give me a hint where 
to find one.

Thanks,
Timo

Alex Ionescu schrieb:
> Kinda curious why you have "unknowns" in a documented structure.
>
> On 30-Jul-08, at 7:17 PM, [e-mail] wrote:
> > Author: tkreuzer
> > Date: Wed Jul 30 21:16:59 2008
> > New Revision: 34970
> >
> > URL: http://svn.reactos.org/svn/reactos?rev=34970&view=rev
> > Log:
> > update KPCR and KIPCR
> > add KeGetPcr() and update KeGetCurrentProcessorNumber
> >
> > Modified:
> >   branches/ros-amd64-bringup/reactos/include/ddk/winddk.h
> >   branches/ros-amd64-bringup/reactos/include/ndk/amd64/ketypes.h
> >
> > Modified: branches/ros-amd64-bringup/reactos/include/ddk/winddk.h
> > URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/includ...
> > =
> > =
> > =
> > =
> > =
> > =
> > =
> > =
> > ======================================================================
> > --- branches/ros-amd64-bringup/reactos/include/ddk/winddk.h  
> > [iso-8859-1] (original)
> > +++ branches/ros-amd64-bringup/reactos/include/ddk/winddk.h  
> > [iso-8859-1] Wed Jul 30 21:16:59 2008
> > @@ -5516,23 +5516,38 @@
> >
> > typedef struct _KPCR
> > {
> > NT_TIB NtTib;
> > struct _KPRCB *CurrentPrcb;
> > ULONG64 SavedRcx;
> > ULONG64 SavedR11;
> > union
> > {
> >    NT_TIB NtTib;
> >    struct
> >    {
> >        union _KGDTENTRY64 *GdtBase;
> >        struct _KTSS64 *TssBase;
> >        ULONG64 UserRsp;
> >        struct _KPCR *Self;
> >        struct _KPRCB *CurrentPrcb;
> >        PKSPIN_LOCK_QUEUE LockArray;
> >        PVOID Used_Self;
> >    };
> > };
> > union _KIDTENTRY64 *IdtBase;
> > ULONG64 Unused[2];
> > KIRQL Irql;
> > UCHAR SecondLevelCacheAssociativity;
> > UCHAR Number;
> > UCHAR ObsoleteNumber;
> > UCHAR Fill0;
> > ULONG Irr;
> > ULONG IrrActive;
> > ULONG Idr;
> > ULONG Unused0[3];
> > USHORT MajorVersion;
> > USHORT MinorVersion;
> > ULONG StallScaleFactor;
> > union _KIDTENTRY64 *IdtBase;
> > union _KGDTENTRY64 *GdtBase;
> > struct _KTSS64 *TssBase;
> > PVOID Unused1[3];
> > ULONG KernelReserved[15];
> > ULONG SecondLevelCacheSize;
> > ULONG HalReserved[16];
> > ULONG Unused2;
> > PVOID KdVersionBlock;
> > PVOID Unused3;
> > ULONG PcrAlign1[24];
> >
> > } KPCR, *PKPCR;
> >
> > typedef struct _KFLOATING_SAVE {
> > @@ -5552,10 +5567,17 @@
> >    VOID);
> >
> > FORCEINLINE
> > +PKPCR
> > +KeGetPcr(VOID)
> > +{
> > return (PKPCR)__readgsqword(FIELD_OFFSET(KPCR, Self));
> >
> > +}
> >
> > +FORCEINLINE
> > ULONG
> > KeGetCurrentProcessorNumber(VOID)
> > {
> > return (ULONG)__readgsbyte(FIELD_OFFSET(KPCR, Number));
> > return (ULONG)__readgsword(0x184);
> >
> > }
> >
> > #elif defined(__PowerPC__)
> >
> > Modified: branches/ros-amd64-bringup/reactos/include/ndk/amd64/ 
> > ketypes.h
> > URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/includ...
> > = 
> > = 
> > = 
> > = 
> > = 
> > = 
> > = 
> > = 
> > ======================================================================
> > --- branches/ros-amd64-bringup/reactos/include/ndk/amd64/ketypes.h  
> > [iso-8859-1] (original)
> > +++ branches/ros-amd64-bringup/reactos/include/ndk/amd64/ketypes.h  
> > [iso-8859-1] Wed Jul 30 21:16:59 2008
> > @@ -635,41 +635,42 @@
> >        NT_TIB NtTib;
> >        struct
> >        {
> >        struct _EXCEPTION_REGISTRATION_RECORD  
> >
> > *Used_ExceptionList;
> >        PVOID Used_StackBase;
> >        PVOID PerfGlobalGroupMask;
> >        PVOID TssCopy;
> >        ULONG ContextSwitches;
> >        KAFFINITY SetMemberCopy;
> >        union _KGDTENTRY64 *GdtBase;
> >        struct _KTSS64 *TssBase;
> >        ULONG64 UserRsp;
> >        struct _KPCR *Self;
> >        struct _KPRCB *CurrentPrcb;
> >        PKSPIN_LOCK_QUEUE LockArray;
> >      PVOID Used_Self;
> >  };
> > };
> > struct _KPCR *Self;
> > struct _KPRCB *Prcb;
> > union _KIDTENTRY64 *IdtBase;
> > ULONG64 Unused[2];
> > KIRQL Irql;
> > ULONG IRR;
> > ULONG IrrActive;
> > ULONG IDR;
> > PVOID KdVersionBlock;
> > PKIDTENTRY IDT;
> > PKGDTENTRY GDT;
> > struct _KTSS *TSS;
> > UCHAR SecondLevelCacheAssociativity;
> > UCHAR ObsoleteNumber;
> > UCHAR Fill0;
> > ULONG Unused0[3];
> > USHORT MajorVersion;
> > USHORT MinorVersion;
> > KAFFINITY SetMember;
> > ULONG StallScaleFactor;
> > UCHAR SparedUnused;
> > UCHAR Number;
> > UCHAR Reserved;
> > UCHAR L2CacheAssociativity;
> > ULONG VdmAlert;
> > ULONG KernelReserved[14];
> > PVOID Unused1[3];
> > ULONG KernelReserved[15];
> > ULONG SecondLevelCacheSize;
> > ULONG HalReserved[16];
> > ULONG InterruptMode;
> > UCHAR Spare1;
> > ULONG KernelReserved2[17];
> > KPRCB PrcbData;
> > ULONG Unused2;
> > ULONG Fill1;
> > PVOID KdVersionBlock; // 0x108
> > PVOID Unused3;
> > ULONG PcrAlign1[24];
> > ULONG Unknown1; // 0x178
> > ULONG Unknown2;
> > ULONG Unknown3;
> > USHORT CpuNumber; // 0x184
> > // hack:
> > ULONG ContextSwitches;
> >
> > } KIPCR, *PKIPCR;
> > #pragma pack(pop)
>
> Best regards,
> Alex Ionescu
>
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