Hi All, > Changes from V4 to V5: > ---------------------- > 1. Drop config option that enables efi page fault handler, instead make > it default. > 2. Call schedule() in an infinite loop to account for spurious wake ups. > 3. Introduce "NONE" as an efi runtime service function identifier so that > it could be used in efi_recover_from_page_fault() to check if the page > fault was indeed triggered by an efi runtime service.
Please note that apart from dropping the config knob and accounting for spurious wake ups, I have added a third change. I realized that when kernel command line option efi=old_map is passed, the efi page fault handler in V4 wouldn't work because, it checks for efi_mm. In the efi page fault handler, I have also added an explicit check for x86_64 because AFAIK, x86_32 bit machines do not suffer from this problem (Boris, please correct me if I am wrong). Also, I was unable to trigger page faults with buggy OVMF for x86_32. Just wanted to state the third change explicitly here so that it doesn't escape reviewers eyes. Regards, Sai
