On Wed, Jun 13, 2018 at 06:18:05PM +, Dave Hansen wrote:
> On 06/12/2018 07:39 AM, Kirill A. Shutemov wrote:
> > +bool vma_is_encrypted(struct vm_area_struct *vma)
> > +{
> > + return pgprot_val(vma->vm_page_prot) & mktme_keyid_mask;
> > +}
> > +
> > +int vma_keyid(struct vm_area_struct
On Wed, Jun 13, 2018 at 06:18:05PM +, Dave Hansen wrote:
> On 06/12/2018 07:39 AM, Kirill A. Shutemov wrote:
> > +bool vma_is_encrypted(struct vm_area_struct *vma)
> > +{
> > + return pgprot_val(vma->vm_page_prot) & mktme_keyid_mask;
> > +}
> > +
> > +int vma_keyid(struct vm_area_struct
On 06/12/2018 07:39 AM, Kirill A. Shutemov wrote:
> +bool vma_is_encrypted(struct vm_area_struct *vma)
> +{
> + return pgprot_val(vma->vm_page_prot) & mktme_keyid_mask;
> +}
> +
> +int vma_keyid(struct vm_area_struct *vma)
> +{
> + pgprotval_t prot;
> +
> + if (!vma_is_anonymous(vma))
On 06/12/2018 07:39 AM, Kirill A. Shutemov wrote:
> +bool vma_is_encrypted(struct vm_area_struct *vma)
> +{
> + return pgprot_val(vma->vm_page_prot) & mktme_keyid_mask;
> +}
> +
> +int vma_keyid(struct vm_area_struct *vma)
> +{
> + pgprotval_t prot;
> +
> + if (!vma_is_anonymous(vma))
We store KeyID in upper bits for vm_page_prot that match position of
KeyID in PTE. vma_keyid() extracts KeyID from vm_page_prot.
VMA is encrypted if KeyID is non-zero. vma_is_encrypted() checks that.
Signed-off-by: Kirill A. Shutemov
---
arch/x86/include/asm/mktme.h | 9 +
We store KeyID in upper bits for vm_page_prot that match position of
KeyID in PTE. vma_keyid() extracts KeyID from vm_page_prot.
VMA is encrypted if KeyID is non-zero. vma_is_encrypted() checks that.
Signed-off-by: Kirill A. Shutemov
---
arch/x86/include/asm/mktme.h | 9 +
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