xt-sys/exectos
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Setup processor context (GDT, PCR, TSS) and kernel startup stack before booting XTOS
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This commit is contained in:
Rafal Kupiec
2023-01-25 18:39:07 +01:00
parent 3ad3149f80
commit 3b08bcaa4f
5 changed files with 573 additions and 1 deletions
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13
xtldr/modules/xtos/xtos.c
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@@ -188,6 +188,7 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
LIST_ENTRY MemoryMappings;
ULONG KernelStackPages;
EFI_STATUS Status;
PKGDTENTRY Gdt;
/* Initialize XTOS startup sequence */
XtLdrProtocol->DbgPrint(L"Initializing XTOS startup sequence\n");
@@ -257,6 +258,15 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
KernelStackPages, LoaderStartupKernelStack);
VirtualAddress += (KernelStackPages * EFI_PAGE_SIZE);
/* Set processor context */
Status = XtpSetProcessorContext(&MemoryMappings, &VirtualAddress, &Gdt);
if(Status != STATUS_EFI_SUCCESS)
{
/* Failed to set processor context */
XtLdrProtocol->DbgPrint(L"Failed to set processor context (Status Code: %lx)\n", Status);
return Status;
}
/* Enable paging */
EfiSystemTable->BootServices->HandleProtocol(EfiImageHandle, &LoadedImageGuid, (PVOID*)&ImageProtocol);
Status = XtLdrProtocol->EnablePaging(&MemoryMappings, VirtualAddress, ImageProtocol, &XtPageMap);
@@ -267,6 +277,9 @@ XtpBootSequence(IN PEFI_FILE_HANDLE BootDir,
return Status;
}
/* Load processor context */
XtpLoadProcessorContext(Gdt);
/* Call XTOS kernel */
XtLdrProtocol->DbgPrint(L"Booting the XTOS kernel\n");
KernelEntryPoint(KernelParameters);