RE: [PATCH v2 1/6] x86/tdx: Retry TDVMCALL_MAP_GPA() when needed

[Dexuan Cui]

> From: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
> Sent: Thursday, December 8, 2022 11:48 AM
> To: Dexuan Cui <decui@xxxxxxxxxxxxx>
> > [...]
> > +static bool tdx_map_gpa(phys_addr_t start, phys_addr_t end, bool enc)
> >  {
> > -	phys_addr_t start = __pa(vaddr);
> > -	phys_addr_t end   = __pa(vaddr + numpages * PAGE_SIZE);
> > +	int max_retry_cnt = 1000, retry_cnt = 0;
> 
> Hm. max_retry_cnt looks too high to me. I expected to see 3 or something.
> 
> Any justification for it to be *that* high?

No. I just used an enough big number :-)
I'll change it to 3 in the next version.