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Add DPRINTs to tell if SYSENTER is detected. Requested by Christoph for testing the test machine.

svn path=/trunk/; revision=46253
This commit is contained in:
Timo Kreuzer 2010-03-17 21:26:04 +00:00
parent f891c7f43b
commit 814940c42b
1 changed files with 3 additions and 0 deletions
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reactos/ntoskrnl/ke/i386/cpu.c
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@ -1010,18 +1010,21 @@ KiRestoreFastSyscallReturnState(VOID)
/* It's enabled, so use the proper exit stub */ /* It's enabled, so use the proper exit stub */
KiFastCallExitHandler = KiSystemCallSysExitReturn; KiFastCallExitHandler = KiSystemCallSysExitReturn;
DPRINT1("Support for SYSENTER detected.\n");
} }
else else
{ {
/* Disable fast system call */ /* Disable fast system call */
KeFeatureBits &= ~KF_FAST_SYSCALL; KeFeatureBits &= ~KF_FAST_SYSCALL;
KiFastCallExitHandler = KiSystemCallTrapReturn; KiFastCallExitHandler = KiSystemCallTrapReturn;
DPRINT1("Support for SYSENTER disabled.\n");
} }
} }
else else
{ {
/* Use the IRET handler */ /* Use the IRET handler */
KiFastCallExitHandler = KiSystemCallTrapReturn; KiFastCallExitHandler = KiSystemCallTrapReturn;
DPRINT1("No support for SYSENTER detected.\n");
} }
} }