Messages in this thread | | | Date | Wed, 27 Aug 2014 11:50:25 -0700 | Subject | Re: [PATCH] x86: only load initrd above 4g on second try | From | Yinghai Lu <> |
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On Wed, Aug 27, 2014 at 10:49 AM, H. Peter Anvin <hpa@zytor.com> wrote: > On 08/26/2014 03:05 PM, Yinghai Lu wrote: > This does, however, suggest at least two possible solutions: > > 1. We can read the initramfs into a temporary buffer and memcpy() it to > the target. > > 2. We might be able to align the initramfs buffer to a 512-byte section > and then round up the size. > > The 512 bytes here is probably a hardware sector, I'm not sure how this > will play on 4K-hard-sectored media, although those are few and far between.
efi_high_alloc() already round up the buffer size with EFI_PAGE_SIZE (it is 4KiB now), and the buffer is aligned to EFI_PAGE_SIZE.
Yinghai
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