29 Apr
2024
29 Apr
'24
1:22 p.m.
On Mon Apr 29, 2024 at 4:04 PM EEST, Jarkko Sakkinen wrote:
Fix these two bugs (1) by returning VM_FAULT_NOPAGE to the generic Linux fault handler so that no signal is sent to userspace, and (2) by replacing sgx_encl_free_epc_page() with sgx_free_epc_page() so that no EREMOVE is performed.
What is the collateral damage caused by ENCLS[EREMOVE]?
Have you measured cost of eremove on an empty page?
I tried to lookup for a thread from lore because I have a faint memory that it was concluded that its cost irrelevant. Please correct if I'm wrong.
BR, Jarkko