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>
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File | Mode | Size |
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heaps | ||
Kconfig | -rw-r--r-- | 2.6 KB |
Makefile | -rw-r--r-- | 472 bytes |
dma-buf.c | -rw-r--r-- | 40.7 KB |
dma-fence-array.c | -rw-r--r-- | 5.7 KB |
dma-fence-chain.c | -rw-r--r-- | 6.6 KB |
dma-fence.c | -rw-r--r-- | 29.3 KB |
dma-heap.c | -rw-r--r-- | 7.2 KB |
dma-resv.c | -rw-r--r-- | 16.4 KB |
selftest.c | -rw-r--r-- | 3.0 KB |
selftest.h | -rw-r--r-- | 549 bytes |
selftests.h | -rw-r--r-- | 584 bytes |
seqno-fence.c | -rw-r--r-- | 1.8 KB |
st-dma-fence-chain.c | -rw-r--r-- | 13.6 KB |
st-dma-fence.c | -rw-r--r-- | 10.4 KB |
sw_sync.c | -rw-r--r-- | 9.5 KB |
sync_debug.c | -rw-r--r-- | 4.6 KB |
sync_debug.h | -rw-r--r-- | 1.8 KB |
sync_file.c | -rw-r--r-- | 11.0 KB |
sync_trace.h | -rw-r--r-- | 774 bytes |
udmabuf.c | -rw-r--r-- | 7.6 KB |
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