Re: [RFC v1 23/26] x86/tdx: Make pages shared in ioremap()

On 4/6/21 9:00 AM, Kirill A. Shutemov wrote: >>> --- a/arch/x86/mm/ioremap.c >>> +++ b/arch/x86/mm/ioremap.c >>> @@ -87,12 +87,12 @@ static unsigned int __ioremap_check_ram(struct resource >>> *res) >>> } >>> >>> /* >>> - * In a SEV guest, NONE and RESERVED should not be mapped encrypted becau

Re: [RFC v1 23/26] x86/tdx: Make pages shared in ioremap()

On Thu, Apr 01, 2021 at 01:26:23PM -0700, Dave Hansen wrote: > On 2/5/21 3:38 PM, Kuppuswamy Sathyanarayanan wrote: > > From: "Kirill A. Shutemov" > > > > All ioremap()ed paged that are not backed by normal memory (NONE or > > RESERVED) have to be mapped as shared. > > s/paged/pages/ > > > > +

Re: [RFC v1 23/26] x86/tdx: Make pages shared in ioremap()

On 2/5/21 3:38 PM, Kuppuswamy Sathyanarayanan wrote: > From: "Kirill A. Shutemov" > > All ioremap()ed paged that are not backed by normal memory (NONE or > RESERVED) have to be mapped as shared. s/paged/pages/ > +/* Make the page accesable by VMM */ > +#define pgprot_tdx_shared(prot) __pgprot(