https://github.com/torvalds/linux
Revision c00bbcf8628969e103d4a7b351a53746f1025576 authored by Stefan Hajnoczi on 29 March 2016, 15:43:45 UTC, committed by Michael S. Tsirkin on 07 April 2016, 12:16:41 UTC
The VIRTIO 1.0 specification added the DEVICE_NEEDS_RESET device status bit in "VIRTIO-98: Add DEVICE_NEEDS_RESET". This patch defines the device status bit in the uapi header file so that both the kernel and userspace applications can use it. The bit is currently unused by the virtio guest drivers and vhost. According to the spec "a good implementation will try to recover by issuing a reset". This is not attempted here because it requires auditing the virtio drivers to ensure there are no resource leaks or crashes if the device needs to be reset mid-operation. See "2.1 Device Status Field" in the VIRTIO 1.0 specification for details. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
1 parent eeca9a6
Tip revision: c00bbcf8628969e103d4a7b351a53746f1025576 authored by Stefan Hajnoczi on 29 March 2016, 15:43:45 UTC
virtio: add VIRTIO_CONFIG_S_NEEDS_RESET device status bit
virtio: add VIRTIO_CONFIG_S_NEEDS_RESET device status bit
Tip revision: c00bbcf
| File | Mode | Size |
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| 842 | ||
| fonts | ||
| lz4 | ||
| lzo | ||
| mpi | ||
| raid6 | ||
| reed_solomon | ||
| xz | ||
| zlib_deflate | ||
| zlib_inflate | ||
| .gitignore | -rw-r--r-- | 70 bytes |
| Kconfig | -rw-r--r-- | 11.9 KB |
| Kconfig.debug | -rw-r--r-- | 67.6 KB |
| Kconfig.kasan | -rw-r--r-- | 1.8 KB |
| Kconfig.kgdb | -rw-r--r-- | 4.1 KB |
| Kconfig.kmemcheck | -rw-r--r-- | 2.9 KB |
| Kconfig.ubsan | -rw-r--r-- | 1.3 KB |
| Makefile | -rw-r--r-- | 7.4 KB |
| argv_split.c | -rw-r--r-- | 2.1 KB |
| asn1_decoder.c | -rw-r--r-- | 13.1 KB |
| assoc_array.c | -rw-r--r-- | 52.6 KB |
| atomic64.c | -rw-r--r-- | 4.1 KB |
| atomic64_test.c | -rw-r--r-- | 5.4 KB |
| audit.c | -rw-r--r-- | 1.7 KB |
| bcd.c | -rw-r--r-- | 261 bytes |
| bch.c | -rw-r--r-- | 35.6 KB |
| bitmap.c | -rw-r--r-- | 35.3 KB |
| bitrev.c | -rw-r--r-- | 1.9 KB |
| bsearch.c | -rw-r--r-- | 1.6 KB |
| btree.c | -rw-r--r-- | 19.2 KB |
| bug.c | -rw-r--r-- | 4.7 KB |
| build_OID_registry | -rwxr-xr-x | 4.7 KB |
| bust_spinlocks.c | -rw-r--r-- | 660 bytes |
| check_signature.c | -rw-r--r-- | 599 bytes |
| checksum.c | -rw-r--r-- | 5.0 KB |
| clz_ctz.c | -rw-r--r-- | 1.3 KB |
| clz_tab.c | -rw-r--r-- | 855 bytes |
| cmdline.c | -rw-r--r-- | 4.1 KB |
| compat_audit.c | -rw-r--r-- | 796 bytes |
| cordic.c | -rw-r--r-- | 2.5 KB |
| cpu-notifier-error-inject.c | -rw-r--r-- | 1.2 KB |
| cpu_rmap.c | -rw-r--r-- | 7.8 KB |
| cpumask.c | -rw-r--r-- | 4.6 KB |
| crc-ccitt.c | -rw-r--r-- | 3.0 KB |
| crc-itu-t.c | -rw-r--r-- | 2.8 KB |
| crc-t10dif.c | -rw-r--r-- | 1.6 KB |
| crc16.c | -rw-r--r-- | 2.8 KB |
| crc32.c | -rw-r--r-- | 45.4 KB |
| crc32defs.h | -rw-r--r-- | 2.0 KB |
| crc7.c | -rw-r--r-- | 2.6 KB |
| crc8.c | -rw-r--r-- | 2.4 KB |
| ctype.c | -rw-r--r-- | 1.4 KB |
| debug_info.c | -rw-r--r-- | 741 bytes |
| debug_locks.c | -rw-r--r-- | 1.2 KB |
| debugobjects.c | -rw-r--r-- | 26.1 KB |
| dec_and_lock.c | -rw-r--r-- | 784 bytes |
| decompress.c | -rw-r--r-- | 1.7 KB |
| decompress_bunzip2.c | -rw-r--r-- | 23.5 KB |
| decompress_inflate.c | -rw-r--r-- | 4.4 KB |
| decompress_unlz4.c | -rw-r--r-- | 4.2 KB |
| decompress_unlzma.c | -rw-r--r-- | 15.8 KB |
| decompress_unlzo.c | -rw-r--r-- | 7.1 KB |
| decompress_unxz.c | -rw-r--r-- | 10.9 KB |
| devres.c | -rw-r--r-- | 9.8 KB |
| digsig.c | -rw-r--r-- | 5.5 KB |
| div64.c | -rw-r--r-- | 4.1 KB |
| dma-debug.c | -rw-r--r-- | 42.2 KB |
| dma-noop.c | -rw-r--r-- | 1.7 KB |
| dump_stack.c | -rw-r--r-- | 1.2 KB |
| dynamic_debug.c | -rw-r--r-- | 25.1 KB |
| dynamic_queue_limits.c | -rw-r--r-- | 4.3 KB |
| earlycpio.c | -rw-r--r-- | 3.9 KB |
| extable.c | -rw-r--r-- | 3.1 KB |
| fault-inject.c | -rw-r--r-- | 6.0 KB |
| fdt.c | -rw-r--r-- | 69 bytes |
| fdt_empty_tree.c | -rw-r--r-- | 80 bytes |
| fdt_ro.c | -rw-r--r-- | 72 bytes |
| fdt_rw.c | -rw-r--r-- | 72 bytes |
| fdt_strerror.c | -rw-r--r-- | 78 bytes |
| fdt_sw.c | -rw-r--r-- | 72 bytes |
| fdt_wip.c | -rw-r--r-- | 73 bytes |
| find_bit.c | -rw-r--r-- | 4.5 KB |
| flex_array.c | -rw-r--r-- | 11.0 KB |
| flex_proportions.c | -rw-r--r-- | 6.9 KB |
| gcd.c | -rw-r--r-- | 313 bytes |
| gen_crc32table.c | -rw-r--r-- | 3.2 KB |
| genalloc.c | -rw-r--r-- | 21.6 KB |
| glob.c | -rw-r--r-- | 7.7 KB |
| halfmd4.c | -rw-r--r-- | 2.0 KB |
| hexdump.c | -rw-r--r-- | 8.3 KB |
| hweight.c | -rw-r--r-- | 1.9 KB |
| idr.c | -rw-r--r-- | 28.0 KB |
| inflate.c | -rw-r--r-- | 38.6 KB |
| int_sqrt.c | -rw-r--r-- | 652 bytes |
| interval_tree.c | -rw-r--r-- | 499 bytes |
| interval_tree_test.c | -rw-r--r-- | 2.3 KB |
| iomap.c | -rw-r--r-- | 6.5 KB |
| iomap_copy.c | -rw-r--r-- | 2.8 KB |
| iommu-common.c | -rw-r--r-- | 7.0 KB |
| iommu-helper.c | -rw-r--r-- | 1.0 KB |
| ioremap.c | -rw-r--r-- | 3.4 KB |
| iov_iter.c | -rw-r--r-- | 19.9 KB |
| irq_poll.c | -rw-r--r-- | 5.6 KB |
| irq_regs.c | -rw-r--r-- | 604 bytes |
| is_single_threaded.c | -rw-r--r-- | 1.3 KB |
| jedec_ddr_data.c | -rw-r--r-- | 3.0 KB |
| kasprintf.c | -rw-r--r-- | 1.4 KB |
| kfifo.c | -rw-r--r-- | 12.7 KB |
| klist.c | -rw-r--r-- | 10.3 KB |
| kobject.c | -rw-r--r-- | 26.0 KB |
| kobject_uevent.c | -rw-r--r-- | 11.3 KB |
| kstrtox.c | -rw-r--r-- | 10.6 KB |
| kstrtox.h | -rw-r--r-- | 254 bytes |
| lcm.c | -rw-r--r-- | 441 bytes |
| libcrc32c.c | -rw-r--r-- | 2.1 KB |
| list_debug.c | -rw-r--r-- | 2.6 KB |
| list_sort.c | -rw-r--r-- | 6.8 KB |
| llist.c | -rw-r--r-- | 3.1 KB |
| locking-selftest-hardirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-mutex.h | -rw-r--r-- | 120 bytes |
| locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-rlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-rsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest-softirq.h | -rw-r--r-- | 207 bytes |
| locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
| locking-selftest-spin.h | -rw-r--r-- | 118 bytes |
| locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
| locking-selftest-wlock.h | -rw-r--r-- | 158 bytes |
| locking-selftest-wsem.h | -rw-r--r-- | 163 bytes |
| locking-selftest.c | -rw-r--r-- | 40.1 KB |
| lockref.c | -rw-r--r-- | 3.9 KB |
| lru_cache.c | -rw-r--r-- | 19.4 KB |
| md5.c | -rw-r--r-- | 3.7 KB |
| memory-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
| memweight.c | -rw-r--r-- | 999 bytes |
| net_utils.c | -rw-r--r-- | 604 bytes |
| netdev-notifier-error-inject.c | -rw-r--r-- | 1.5 KB |
| nlattr.c | -rw-r--r-- | 12.5 KB |
| nmi_backtrace.c | -rw-r--r-- | 4.5 KB |
| notifier-error-inject.c | -rw-r--r-- | 2.7 KB |
| notifier-error-inject.h | -rw-r--r-- | 614 bytes |
| of-reconfig-notifier-error-inject.c | -rw-r--r-- | 1.3 KB |
| oid_registry.c | -rw-r--r-- | 3.8 KB |
| once.c | -rw-r--r-- | 1.3 KB |
| parser.c | -rw-r--r-- | 7.1 KB |
| pci_iomap.c | -rw-r--r-- | 4.2 KB |
| percpu-refcount.c | -rw-r--r-- | 11.7 KB |
| percpu_counter.c | -rw-r--r-- | 5.5 KB |
| percpu_ida.c | -rw-r--r-- | 9.5 KB |
| percpu_test.c | -rw-r--r-- | 3.2 KB |
| plist.c | -rw-r--r-- | 5.9 KB |
| pm-notifier-error-inject.c | -rw-r--r-- | 1.1 KB |
| proportions.c | -rw-r--r-- | 9.3 KB |
| radix-tree.c | -rw-r--r-- | 42.5 KB |
| random32.c | -rw-r--r-- | 12.7 KB |
| ratelimit.c | -rw-r--r-- | 1.5 KB |
| rational.c | -rw-r--r-- | 1.5 KB |
| rbtree.c | -rw-r--r-- | 16.2 KB |
| rbtree_test.c | -rw-r--r-- | 5.5 KB |
| reciprocal_div.c | -rw-r--r-- | 492 bytes |
| rhashtable.c | -rw-r--r-- | 20.6 KB |
| scatterlist.c | -rw-r--r-- | 18.8 KB |
| seq_buf.c | -rw-r--r-- | 7.8 KB |
| sg_split.c | -rw-r--r-- | 5.1 KB |
| sha1.c | -rw-r--r-- | 6.1 KB |
| show_mem.c | -rw-r--r-- | 1.2 KB |
| smp_processor_id.c | -rw-r--r-- | 1.3 KB |
| sort.c | -rw-r--r-- | 2.9 KB |
| stackdepot.c | -rw-r--r-- | 8.3 KB |
| stmp_device.c | -rw-r--r-- | 2.1 KB |
| string.c | -rw-r--r-- | 20.0 KB |
| string_helpers.c | -rw-r--r-- | 11.3 KB |
| strncpy_from_user.c | -rw-r--r-- | 3.0 KB |
| strnlen_user.c | -rw-r--r-- | 4.3 KB |
| swiotlb.c | -rw-r--r-- | 27.3 KB |
| syscall.c | -rw-r--r-- | 2.4 KB |
| test-kstrtox.c | -rw-r--r-- | 17.3 KB |
| test-string_helpers.c | -rw-r--r-- | 10.3 KB |
| test_bitmap.c | -rw-r--r-- | 9.0 KB |
| test_bpf.c | -rw-r--r-- | 129.0 KB |
| test_firmware.c | -rw-r--r-- | 4.3 KB |
| test_hexdump.c | -rw-r--r-- | 5.7 KB |
| test_kasan.c | -rw-r--r-- | 6.9 KB |
| test_module.c | -rw-r--r-- | 753 bytes |
| test_printf.c | -rw-r--r-- | 12.4 KB |
| test_rhashtable.c | -rw-r--r-- | 10.3 KB |
| test_static_key_base.c | -rw-r--r-- | 2.0 KB |
| test_static_keys.c | -rw-r--r-- | 6.0 KB |
| test_user_copy.c | -rw-r--r-- | 3.1 KB |
| textsearch.c | -rw-r--r-- | 9.4 KB |
| timerqueue.c | -rw-r--r-- | 3.2 KB |
| ts_bm.c | -rw-r--r-- | 5.3 KB |
| ts_fsm.c | -rw-r--r-- | 10.6 KB |
| ts_kmp.c | -rw-r--r-- | 4.3 KB |
| ubsan.c | -rw-r--r-- | 10.9 KB |
| ubsan.h | -rw-r--r-- | 1.5 KB |
| ucs2_string.c | -rw-r--r-- | 2.4 KB |
| usercopy.c | -rw-r--r-- | 197 bytes |
| uuid.c | -rw-r--r-- | 1.3 KB |
| vsprintf.c | -rw-r--r-- | 66.8 KB |
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