On Tue, 17 May 2022 18:34:31 +0300 "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > UEFI Specification version 2.9 introduces the concept of memory > acceptance. Some Virtual Machine platforms, such as Intel TDX or AMD > SEV-SNP, require memory to be accepted before it can be used by the > guest. Accepting happens via a protocol specific to the Virtual Machine > platform. > > ... > > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -928,6 +928,14 @@ static inline bool is_page_hwpoison(struct page *page) > #define PG_offline 0x00000100 > #define PG_table 0x00000200 > #define PG_guard 0x00000400 > +#define PG_unaccepted 0x00000800 "For pages that are never mapped to userspace (and aren't PageSlab), page_type may be used." Is that true of these pages?
