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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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18b8980988
If the guest is enabled for EDAT2, we can easily create shadows for guest2 -> guest3 provided tables that make use of EDAT2. If guest2 references a 2GB page, this memory looks consecutive for guest2, but it does not have to be so for us. Therefore we have to create fake segment and page tables. This works just like EDAT1 support, so page tables are removed when the parent table (r3t table entry) is changed. We don't hve to care about: - ACCF-Validity Control in RTTE - Access-Control Bits in RTTE - Fetch-Protection Bit in RTTE - Common-Region Bit in RTTE Just like for EDAT1, all bits might be dropped and there is no guaranteed that they are active. Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> |
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| .. | ||
| cmm.c | ||
| dump_pagetables.c | ||
| extmem.c | ||
| fault.c | ||
| gmap.c | ||
| gup.c | ||
| hugetlbpage.c | ||
| init.c | ||
| maccess.c | ||
| Makefile | ||
| mem_detect.c | ||
| mmap.c | ||
| page-states.c | ||
| pageattr.c | ||
| pgalloc.c | ||
| pgtable.c | ||
| vmem.c | ||