xen/pvh: Bootstrap PVH guest

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Start PVH guest at XEN_ELFNOTE_PHYS32_ENTRY address. Setup hypercall
page, initialize boot_params, enable early page tables.

Since this stub is executed before kernel entry point we cannot use
variables in .bss which is cleared by kernel. We explicitly place
variables that are initialized here into .data.

While adjusting xen_hvm_init_shared_info() make it use cpuid_e?x()
instead of cpuid() (wherever possible).

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>

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Boris Ostrovsky 2017-02-05 19:50:52 -05:00

parent cee2cfb7d1

commit 7243b93345

5 changed files with 282 additions and 11 deletions

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include/xen/xen.h

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