On Fri, May 20, 2022 at 06:38:57PM +0800, Cathy Zhang wrote: > Tearing down all enclaves is required by SGX SVN update, which > involves running the ENCLS[EREMOVE] instruction on every EPC > page. This (tearing down all enclaves) should be coordinated > with any enclaves that may be in the process of existing and thus > already be running ENCLS[EREMOVE] as part of enclave release. > > In support of this coordination, it is required to know which enclave > owns each in-use EPC page. It is already possible to locate the > owning enclave of SECS and regular pages but not for VA pages. > > Make the following changes for VA pages' location: > 1) Make epc->owner type-agnostic by changing its type to 'void *'. So, > besides "struct sgx_encl_page", it can have other types, like > "struct sgx_va_page". > 2) Save the enclave pointer for each VA page to support locating its > owning enclave. Enumeration lists imply that you would better to split this into two patches. BR, Jarkko
