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Re: [PATCH v2 0/5] Support EFI multiboot loading using PE binary
- To: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 20 Aug 2024 15:35:40 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Tue, 20 Aug 2024 13:35:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 14.08.2024 10:34, Frediano Ziglio wrote:
> Testing this feature in preparation for UEFI CA memory mitigation
> requirements I found some issues causing the loading to fail and
> other minor issues.
> Details in series commit messages.
> This is adding an additional way to boot Xen, using GrUB2+EFI
> (xen.efi:__efi64_mb2_start).
>
> Changes since v1:
> - Changed title, apparently this is a kind of new mode;
> - address lot of comments (see "Changes" in other messages).
>
> Frediano Ziglio (5):
> x86: Put trampoline in .init.data section
> x86: Set xen_phys_start and trampoline_xen_phys_start earlier
> x86: Force proper gdt_boot_base setting
> x86: Compensate relocation in case of EFI
> x86: Rollback relocation in case of EFI multiboot
What I'm missing throughout the series (maybe with patch 1 excluded, which
- as Andrew clarified - is really dealing with an independent aspect) is
discussion / clarification of the individual changes not affecting any of
the existing boot modes, first and foremost the EFI+MB2 one using xen.gz.
Jan
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