Re: [RFC, PATCH 03/12] x86/virt/tdx: Add wrappers for TDH.PHYMEM.PAMT.ADD/REMOVE

[Chao Gao]

> int tdx_guest_keyid_alloc(void);
> u32 tdx_get_nr_guest_keyids(void);
> void tdx_guest_keyid_free(unsigned int keyid);
>@@ -197,6 +202,9 @@ u64 tdh_mem_page_remove(struct tdx_td *td, u64 gpa, u64 level, u64 *ext_err1, u6
> u64 tdh_phymem_cache_wb(bool resume);
> u64 tdh_phymem_page_wbinvd_tdr(struct tdx_td *td);
> u64 tdh_phymem_page_wbinvd_hkid(u64 hkid, struct page *page);
>+u64 tdh_phymem_pamt_add(unsigned long hpa, struct list_head *pamt_pages);
>+u64 tdh_phymem_pamt_remove(unsigned long hpa, struct list_head *pamt_pages);

When these SEAMCALL wrappers were added, Dave requested that a struct page
be passed in instead of an HPA [*]. Does this apply to
tdh_phymem_pamt_add/remove()?

[*]: https://lore.kernel.org/kvm/30d0cef5-82d5-4325-b149-0e99833b8785@xxxxxxxxx/