diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c index 63d3de02bbccb50ba7ab015227ac4cc680954877..825aa91516c8df892524206f26ea592e07b341ec 100644 --- a/arch/x86/kernel/cpu/sgx/main.c +++ b/arch/x86/kernel/cpu/sgx/main.c @@ -472,6 +472,7 @@ static struct sgx_epc_page *__sgx_alloc_epc_page_from_node(int nid) page = list_first_entry(&node->free_page_list, struct sgx_epc_page, list); list_del_init(&page->list); sgx_nr_free_pages--; + page->flags = 0; spin_unlock(&node->lock); @@ -626,6 +627,7 @@ void sgx_free_epc_page(struct sgx_epc_page *page) list_add_tail(&page->list, &node->free_page_list); sgx_nr_free_pages++; + page->flags = SGX_EPC_PAGE_IS_FREE; spin_unlock(&node->lock); } diff --git a/arch/x86/kernel/cpu/sgx/sgx.h b/arch/x86/kernel/cpu/sgx/sgx.h index 4628acec000915e2d2b41895088c3edbe5033c14..5906471156c5c9c86e9e719c6b1f06283c180a9e 100644 --- a/arch/x86/kernel/cpu/sgx/sgx.h +++ b/arch/x86/kernel/cpu/sgx/sgx.h @@ -26,6 +26,9 @@ /* Pages, which are being tracked by the page reclaimer. */ #define SGX_EPC_PAGE_RECLAIMER_TRACKED BIT(0) +/* Pages on free list */ +#define SGX_EPC_PAGE_IS_FREE BIT(1) + struct sgx_epc_page { unsigned int section; unsigned int flags;