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?
Reinette
