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add bootinfo for x86#355

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terryzbai wants to merge 1 commit into
seL4:mainfrom
au-ts:add-x86-bootinfo-filling
Open

add bootinfo for x86#355
terryzbai wants to merge 1 commit into
seL4:mainfrom
au-ts:add-x86-bootinfo-filling

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@terryzbai

@terryzbai terryzbai commented Jun 24, 2026

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This PR adds BootInfoIDs for x86, which is required by bootinfo tag support in Microkit. It is useful for the use cases where the userland needs to access some of boot information, e.g., Microkit #525.

The BootInfoExtra iteration found padding tag and tried to read out of boundary due to wrong extraLen, which is fixed by this kernel PR.

@terryzbai terryzbai requested a review from nspin as a code owner June 24, 2026 07:24
This PR adds BootInfoIDs for x86, which is required
by 'bootinfo' tag support in Microkit for the use
cases where the userland needs to access some of
boot information, e.g., Microkit #525.

The BootInfoExtra iteration found padding tag and
tried to read out of boundary due to wrong 'extraLen'
on x86, which is fixed by seL4 #1696.

Signed-off-by: Terry Bai <tianyi.bai@unsw.edu.au>
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