Revision 32ffa4f71e10009498ae6b54da65ab316db967bd authored by Axel Rasmussen on 19 May 2021, 20:03:33 UTC, committed by Paolo Bonzini on 27 May 2021, 11:45:55 UTC
This is a preparatory commit needed before we can use different kinds of
backing pages for guest memory.

Previously, we used perf_test_args.host_page_size, which is the host's
native page size (commonly 4K). For VM_MEM_SRC_ANONYMOUS this turns out
to be okay, but in a follow-up commit we want to allow using different
kinds of backing memory.

Take VM_MEM_SRC_ANONYMOUS_HUGETLB for example. Without this change, if
we used that backing page type, when we issued a UFFDIO_COPY ioctl we'd
only do so with 4K, rather than the full 2M of a backing hugepage. In
this case, UFFDIO_COPY returns -EINVAL (__mcopy_atomic_hugetlb checks
the size).

Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Message-Id: <20210519200339.829146-5-axelrasmussen@google.com>
Reviewed-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 parent 25408e5
History
File Mode Size
aicasm
.gitignore -rw-r--r-- 136 bytes
Kconfig.aic79xx -rw-r--r-- 3.2 KB
Kconfig.aic7xxx -rw-r--r-- 3.5 KB
Makefile -rw-r--r-- 2.9 KB
aic7770.c -rw-r--r-- 9.5 KB
aic7770_osm.c -rw-r--r-- 4.3 KB
aic79xx.h -rw-r--r-- 45.5 KB
aic79xx.reg -rw-r--r-- 72.2 KB
aic79xx.seq -rw-r--r-- 71.0 KB
aic79xx_core.c -rw-r--r-- 289.8 KB
aic79xx_inline.h -rw-r--r-- 5.9 KB
aic79xx_osm.c -rw-r--r-- 77.0 KB
aic79xx_osm.h -rw-r--r-- 18.7 KB
aic79xx_osm_pci.c -rw-r--r-- 10.0 KB
aic79xx_pci.c -rw-r--r-- 26.8 KB
aic79xx_pci.h -rw-r--r-- 3.0 KB
aic79xx_proc.c -rw-r--r-- 8.8 KB
aic79xx_reg.h_shipped -rw-r--r-- 44.3 KB
aic79xx_reg_print.c_shipped -rw-r--r-- 19.2 KB
aic79xx_seq.h_shipped -rw-r--r-- 28.6 KB
aic7xxx.h -rw-r--r-- 41.0 KB
aic7xxx.reg -rw-r--r-- 37.2 KB
aic7xxx.seq -rw-r--r-- 68.8 KB
aic7xxx_93cx6.c -rw-r--r-- 9.4 KB
aic7xxx_93cx6.h -rw-r--r-- 3.6 KB
aic7xxx_core.c -rw-r--r-- 209.0 KB
aic7xxx_inline.h -rw-r--r-- 3.7 KB
aic7xxx_osm.c -rw-r--r-- 70.1 KB
aic7xxx_osm.h -rw-r--r-- 19.0 KB
aic7xxx_osm_pci.c -rw-r--r-- 11.7 KB
aic7xxx_pci.c -rw-r--r-- 60.2 KB
aic7xxx_pci.h -rw-r--r-- 5.2 KB
aic7xxx_proc.c -rw-r--r-- 9.3 KB
aic7xxx_reg.h_shipped -rw-r--r-- 22.6 KB
aic7xxx_reg_print.c_shipped -rw-r--r-- 10.6 KB
aic7xxx_seq.h_shipped -rw-r--r-- 32.1 KB
aiclib.h -rw-r--r-- 5.7 KB
cam.h -rw-r--r-- 4.5 KB
queue.h -rw-r--r-- 16.7 KB
scsi_iu.h -rw-r--r-- 1.0 KB
scsi_message.h -rw-r--r-- 932 bytes

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