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 |
|---|---|---|
| Kconfig | -rw-r--r-- | 2.1 KB |
| Makefile | -rw-r--r-- | 496 bytes |
| stub.h | -rw-r--r-- | 2.4 KB |
| stub_dev.c | -rw-r--r-- | 12.0 KB |
| stub_main.c | -rw-r--r-- | 8.9 KB |
| stub_rx.c | -rw-r--r-- | 16.6 KB |
| stub_tx.c | -rw-r--r-- | 11.4 KB |
| usbip_common.c | -rw-r--r-- | 18.4 KB |
| usbip_common.h | -rw-r--r-- | 10.8 KB |
| usbip_event.c | -rw-r--r-- | 3.9 KB |
| vhci.h | -rw-r--r-- | 3.5 KB |
| vhci_hcd.c | -rw-r--r-- | 38.7 KB |
| vhci_rx.c | -rw-r--r-- | 6.2 KB |
| vhci_sysfs.c | -rw-r--r-- | 12.2 KB |
| vhci_tx.c | -rw-r--r-- | 5.9 KB |
| vudc.h | -rw-r--r-- | 3.6 KB |
| vudc_dev.c | -rw-r--r-- | 12.6 KB |
| vudc_main.c | -rw-r--r-- | 2.5 KB |
| vudc_rx.c | -rw-r--r-- | 5.4 KB |
| vudc_sysfs.c | -rw-r--r-- | 6.0 KB |
| vudc_transfer.c | -rw-r--r-- | 11.7 KB |
| vudc_tx.c | -rw-r--r-- | 6.3 KB |
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