Messages in this thread | | | Date | Tue, 15 Nov 2022 22:36:17 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH V4] virt: sev: Prevent IV reuse in SNP guest driver |
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On Mon, Nov 14, 2022 at 02:11:48PM -0700, Peter Gonda wrote: > Thanks for detailed review. Working on cleaning up the text for a V5.
Yeah, and I have some questions in my reply which you haven't addressed...
> > > @@ -676,7 +712,7 @@ static int __init sev_guest_probe(struct platform_device *pdev) > > > if (!snp_dev->response) > > > goto e_free_request; > > > > > > - snp_dev->certs_data = alloc_shared_pages(dev, SEV_FW_BLOB_MAX_SIZE); > > > + snp_dev->certs_data = alloc_shared_pages(dev, sizeof(*snp_dev->certs_data)); > > > > What's that change for? > > > > I went searching for that ->certs_data only ot realize that it is an > > array of size of SEV_FW_BLOB_MAX_SIZE elems. > > Do you want this change reverted? I liked the extra readability of the > sizeof(*snp_dev->certs_data) but its unnecessary for this change.
Really?
I think using a define which is a SIZE define is better. Especially if you look at
sizeof(*snp_dev->certs_data)
and wonder what type ->certs_data is.
And it's not like it'll go out of sync since it is an array of size, well, SEV_FW_BLOB_MAX_SIZE.
:-)
Thx.
-- Regards/Gruss, Boris.
SUSE Software Solutions Germany GmbH GF: Ivo Totev, Andrew Myers, Andrew McDonald, Martje Boudien Moerman (HRB 36809, AG Nürnberg)
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