Hi Prakhar,
1. Why are the pages mapped to AP are being zeroed when PGE flag is set for
AP in it's CR4 ?
It is hard to say but my guess would be that the 4 PDPTE registers in
the VMCS are not being properly updated during AP spinup. It would be
helpful to see the assembly instructions in the AP spinup code that
modify %cr0, %cr4 and %cr3 to know for sure.
Further to what Neel is saying, are you setting the PAE bit in CR4
prior to setting PGE in CRO ? Is CR0 being set with a direct write, or a
read/modify/write ?
later,
Peter.
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