mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 13:11:45 +00:00
375b2a9ada
Otherwise the second migration attempt fails because the mfn_list_list still refers to all the old mfns. We need to update the entires in both p2m_top_mfn and the mid_mfn pages which p2m_top_mfn refers to. In order to do this we need to keep track of the virtual addresses mapping the p2m_mid_mfn pages since we cannot rely on mfn_to_virt(p2m_top_mfn[idx]) since p2m_top_mfn[idx] will still contain the old MFN after a migration, which may now belong to another domain and hence have a different mapping in the m2p. Therefore add and maintain a third top level page, p2m_top_mfn_p[], which tracks the virtual addresses of the mfns contained in p2m_top_mfn[]. We also need to update the content of the p2m_mid_missing_mfn page on resume to refer to the page's new mfn. p2m_missing does not need updating since the migration process takes care of the leaf p2m pages for us. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> |
||
|---|---|---|
| .. | ||
| alpha | ||
| arm | ||
| avr32 | ||
| blackfin | ||
| cris | ||
| frv | ||
| h8300 | ||
| ia64 | ||
| m32r | ||
| m68k | ||
| m68knommu | ||
| microblaze | ||
| mips | ||
| mn10300 | ||
| parisc | ||
| powerpc | ||
| s390 | ||
| score | ||
| sh | ||
| sparc | ||
| tile | ||
| um | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||