On Mon, Dec 13, 2021 at 02:11:26PM -0800, Reinette Chatre wrote: > Hi Jarkko, > > On 12/10/2021 11:52 PM, Jarkko Sakkinen wrote: > > On Mon, 2021-12-06 at 13:30 -0800, Reinette Chatre wrote: > > > Hi Jarkko, > > > > > > On 12/4/2021 2:59 PM, Jarkko Sakkinen wrote: > > > > On Wed, Dec 01, 2021 at 11:23:05AM -0800, Reinette Chatre wrote: > > > > > The SGX reclaimer removes page table entries pointing to pages that are > > > > > moved to swap. SGX2 enables changes to pages belonging to an initialized > > > > > enclave, for example changing page permissions. Supporting SGX2 requires > > > > > this ability to remove page table entries that is available in the > > > > > SGX reclaimer code. > > > > > > > > Missing: why SGX2 requirest this? > > > > > > The above paragraph states that SGX2 needs to remove page table entries > > > because it modifies page permissions. Could you please elaborate what is > > > missing? > > > > It does not say why SGX2 requires an ability to remove page table entries. > > Are you saying that modification of EPCM page permissions is not a reason to > remove page table entries pointing to those pages? So you have: "Supporting SGX2 requires this ability to remove page table entries that is available in the SGX reclaimer code" Just write down where you need this ability (briefly). /Jarkko
