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authorPaul Mackerras <paulus@samba.org>2011-12-12 12:31:41 (GMT)
committerAvi Kivity <avi@redhat.com>2012-03-05 12:52:37 (GMT)
commitda9d1d7f2875cc8c1ffbce8f3501d0b33f4e7a4d (patch)
treea811ee19778715766e720646506311c8fc7d7bd0 /arch/powerpc/oprofile
parentc77162dee7aff6ab5f075da9b60f649cbbeb86cc (diff)
downloadlinux-fsl-qoriq-da9d1d7f2875cc8c1ffbce8f3501d0b33f4e7a4d.tar.xz
KVM: PPC: Allow use of small pages to back Book3S HV guests
This relaxes the requirement that the guest memory be provided as 16MB huge pages, allowing it to be provided as normal memory, i.e. in pages of PAGE_SIZE bytes (4k or 64k). To allow this, we index the kvm->arch.slot_phys[] arrays with a small page index, even if huge pages are being used, and use the low-order 5 bits of each entry to store the order of the enclosing page with respect to normal pages, i.e. log_2(enclosing_page_size / PAGE_SIZE). Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
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