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SubjectRe: [Xen-devel] [PATCH 1/3] x86/boot: add acpi rsdp address to setup_header
On Tue, Nov 28, 2017 at 10:43:58AM +0100, Juergen Gross wrote:
> Xen PVH guests receive the address of the RSDP table from Xen. In order
> to support booting a Xen PVH guest via grub2 using the standard x86
> boot entry we need a way fro grub2 to pass the RSDP address to the
> kernel.
> For this purpose expand the struct setup_header to hold the physical
> address of the RSDP address. Being zero means it isn't specified and
> has to be located the legacy way (searching through low memory or
> EBDA).
> Signed-off-by: Juergen Gross <>

Reviewed-by: Roger Pau Monné <>

Thanks, Roger.

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