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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2015-06-22 13:00:42 +0000
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2015-06-23 16:18:38 +0000
commitffffbb369f3ed9bca5ff2867143f76d0c6e069c0 (patch)
treeb4e7e36e2608b89ddc49a3247afc7c8404cea4e5 /disas.c
parent74526eb01886ca45774c1e9c736f61536fa2bda1 (diff)
Revert "xen-hvm: increase maxmem before calling xc_domain_populate_physmap"
This reverts commit c1d322e6048796296555dd36fdd102d7fa2f50bf. The original commit fixes a bug when assigning a large number of devices which require option roms to a guest. (One known configuration that needs extra memory is having more than 4 emulated NICs assigned. Three or fewer NICs seems to work without this functionality.) However, by unilaterally increasing maxmem, it introduces two problems. First, now libxl's calculation of the required maxmem during migration is broken -- any guest which exercised this functionality will fail on migration. (Guests which have the default number of devices are not affected.) Secondly, it makes it impossible for a higher-level toolstack or administer to predict how much memory a VM will actually use, making it much more difficult to effectively use all of the memory on a machine. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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