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Add a new hack.

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svn path=/trunk/; revision=42351
This commit is contained in:
Dmitry Gorbachev 2009-08-02 21:27:01 +00:00
parent 5da0923cf0
commit ba74c030d2
1 changed files with 10 additions and 1 deletions
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11
reactos/ntoskrnl/ke/freeldr.c
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@ -66,6 +66,9 @@ PBIOS_MEMORY_DESCRIPTOR BiosMemoryDescriptorList = BiosMemoryDescriptors;
ULONG NumberDescriptors = 0; ULONG NumberDescriptors = 0;
MEMORY_DESCRIPTOR MDArray[60] = { { 0, 0, 0 }, }; MEMORY_DESCRIPTOR MDArray[60] = { { 0, 0, 0 }, };
/* Old boot style IDT */
KIDTENTRY KiHackIdt[256];
/* FUNCTIONS *****************************************************************/ /* FUNCTIONS *****************************************************************/
PMEMORY_ALLOCATION_DESCRIPTOR PMEMORY_ALLOCATION_DESCRIPTOR
@ -1266,10 +1269,16 @@ KiRosPrepareForSystemStartup(IN ULONG Dummy,
#if defined(_M_IX86) #if defined(_M_IX86)
PKTSS Tss; PKTSS Tss;
PKGDTENTRY TssEntry; PKGDTENTRY TssEntry;
KDESCRIPTOR IdtDescriptor = { 0, 0, 0 };
Ke386GetInterruptDescriptorTable(*(PKDESCRIPTOR)&IdtDescriptor.Limit);
RtlCopyMemory(KiHackIdt, (PVOID)IdtDescriptor.Base, IdtDescriptor.Limit + 1);
IdtDescriptor.Base = (ULONG)&KiHackIdt;
IdtDescriptor.Limit = sizeof(KiHackIdt) - 1;
/* Load the GDT and IDT */ /* Load the GDT and IDT */
Ke386SetGlobalDescriptorTable(*(PKDESCRIPTOR)&KiGdtDescriptor.Limit); Ke386SetGlobalDescriptorTable(*(PKDESCRIPTOR)&KiGdtDescriptor.Limit);
Ke386SetInterruptDescriptorTable(*(PKDESCRIPTOR)&KiIdtDescriptor.Limit); Ke386SetInterruptDescriptorTable(*(PKDESCRIPTOR)&IdtDescriptor.Limit);
/* Initialize the boot TSS */ /* Initialize the boot TSS */
Tss = &KiBootTss; Tss = &KiBootTss;