x86/kernel: remove tboot 1:1 page table creation code
For TXT boot, while Linux kernel trys to shutdown/S3/S4/reboot, it need to jump back to tboot code and do TXT teardown work. Previously kernel zapped all mem page identity mapping (va=pa) after booting, so tboot code mem address was mapped again with identity mapping. Now kernel didn't zap the identity mapping page table, so tboot related code can remove the remapping code before trapping back now. Signed-off-by:Xiaoyan Zhang <xiaoyan.zhang@intel.com> Acked-by:
Gang Wei <gang.wei@intel.com> Signed-off-by:
Matt Fleming <matt.fleming@intel.com>
parent
185034e7
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