Re: [PATCH v3] x86/sgx: Free backing memory after faulting the enclave page

On Sat, Jan 08, 2022 at 04:05:10PM +0200, Jarkko Sakkinen wrote:

+static inline pgoff_t sgx_encl_get_backing_pcmd_nr(struct sgx_encl *encl, pgoff_t index) +{

• return PFN_DOWN(encl->size) + 1 + (index / sizeof(struct sgx_pcmd));

+}

Found it.

This should be

static inline pgoff_t sgx_encl_get_backing_pcmd_nr(struct sgx_encl *encl, pgoff_t index) { return PFN_DOWN(encl->size) + 1 + (index * PAGE_SIZE) / sizeof(struct sgx_pcmd); }

/Jarkko