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SubjectRe: [PATCH v8 10/16] x86/virt/tdx: Allocate and set up PAMTs for TDMRs
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On Fri, 2023-01-06 at 13:53 -0800, Dave Hansen wrote:
> Looks good so far.
>
> > +/*
> > + * Allocate PAMTs from the local NUMA node of some memory in @tmb_list
> > + * within @tdmr, and set up PAMTs for @tdmr.
> > + */
> > +static int tdmr_set_up_pamt(struct tdmr_info *tdmr,
> > + struct list_head *tmb_list,
> > + u16 pamt_entry_size)
> > +{
> > + unsigned long pamt_base[TDX_PS_1G + 1];
> > + unsigned long pamt_size[TDX_PS_1G + 1];
>
> Nit: please define a TDX_PS_NR rather than open-coding this.

Will do.

>
> > + unsigned long tdmr_pamt_base;
> > + unsigned long tdmr_pamt_size;
> > + struct page *pamt;
> > + int pgsz, nid;
> > +
> > + nid = tdmr_get_nid(tdmr, tmb_list);
> > +
> > + /*
> > + * Calculate the PAMT size for each TDX supported page size
> > + * and the total PAMT size.
> > + */
> > + tdmr_pamt_size = 0;
> > + for (pgsz = TDX_PS_4K; pgsz <= TDX_PS_1G ; pgsz++) {
> > + pamt_size[pgsz] = tdmr_get_pamt_sz(tdmr, pgsz,
> > + pamt_entry_size);
>
> This alignment is wonky. Should be way over here:
>
> > + pamt_entry_size);

Will do.

>
> > + tdmr_pamt_size += pamt_size[pgsz];
> > + }
> > +
> >

[snip]

>
> Other than the two nits:
>
> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
>

Thanks.

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