Re: [PATCH v6 1/7] kvmppc: Driver to manage pages of secure guest

[Bharata B Rao <bharata@linux.ibm.com>]

On Tue, Aug 20, 2019 at 12:04:33AM -0300, Thiago Jung Bauermann wrote:
> 
> Hello Bharata,
> 
> I have just a couple of small comments.
> 
> Bharata B Rao <bharata@linux.ibm.com> writes:
> 
> > +/*
> > + * Get a free device PFN from the pool
> > + *
> > + * Called when a normal page is moved to secure memory (UV_PAGE_IN). Device
> > + * PFN will be used to keep track of the secure page on HV side.
> > + *
> > + * @rmap here is the slot in the rmap array that corresponds to @gpa.
> > + * Thus a non-zero rmap entry indicates that the corresonding guest
> 
> Typo: corresponding
> 
> > +static u64 kvmppc_get_secmem_size(void)
> > +{
> > +	struct device_node *np;
> > +	int i, len;
> > +	const __be32 *prop;
> > +	u64 size = 0;
> > +
> > +	np = of_find_node_by_path("/ibm,ultravisor/ibm,uv-firmware");
> > +	if (!np)
> > +		goto out;
> 
> I believe that in general we try to avoid hard-coding the path when a
> node is accessed and searched instead via its compatible property.

Thanks, will switch to of_find_compatible_node().

Regards,
Bharata.