Messages in this thread |  | | Subject | Re: [Xen-devel] [PATCH 4/8] xen/pvh: Bootstrap PVH guest | From | Boris Ostrovsky <> | Date | Fri, 14 Oct 2016 14:55:30 -0400 |
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On 10/14/2016 02:38 PM, Andrew Cooper wrote: >> + jmp *%rax >> + >> +#else /* CONFIG_X86_64 */ >> + >> + call setup_pgtable_32 >> + >> + mov $_pa(initial_page_table), %eax >> + movl %eax, %cr3 >> + >> + movl %cr0, %eax >> + orl $(X86_CR0_PG | X86_CR0_PE), %eax >> + movl %eax, %cr0 >> + >> + ljmp $__BOOT_CS,$1f >> +1: >> + call xen_prepare_pvh > Why does xen_prepare_pvh need paging? I can't spot anything which > should need it, and it feels conceptually wrong.
xen_prepare_pvh() deals with virtual addresses. How can we run without paging?
(Also, startup_64, which is where we jump from here in 64-bit mode expects paging to be on).
-boris
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