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SubjectRe: [PATCH v6 RESEND] x86/boot/KASLR: Restrict kernel to be randomized in mirror regions
On 07/24/17 at 02:34pm, Matt Fleming wrote:
> On Fri, 21 Jul, at 09:19:56PM, Baoquan He wrote:
> >
> > There are places where the efi map is getting and used like this. E.g
> > in efi_high_alloc() of drivers/firmware/efi/libstub/efi-stub-helper.c.
> > EFI developers worry the size of efi_memory_desc_t could not be the same
> > as e->efi_memdesc_size?
> >
> > Hi Matt,
> >
> > Could you help have a look at this?
>
> You're exactly right. The code guards against the size of the
> efi_memory_desc_t struct changing. The UEFI spec says to traverse the
> memory map this way.

Thanks a lot, Matt. Then I will keep using the way.

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