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 |
|---|---|---|
| ABI | ||
| DocBook | ||
| EDID | ||
| PCI | ||
| RCU | ||
| accounting | ||
| acpi | ||
| aoe | ||
| arm | ||
| arm64 | ||
| auxdisplay | ||
| backlight | ||
| blackfin | ||
| block | ||
| blockdev | ||
| bus-devices | ||
| cdrom | ||
| cgroup-v1 | ||
| cma | ||
| connector | ||
| console | ||
| cpu-freq | ||
| cpuidle | ||
| cris | ||
| crypto | ||
| development-process | ||
| device-mapper | ||
| devicetree | ||
| dmaengine | ||
| driver-model | ||
| dvb | ||
| early-userspace | ||
| extcon | ||
| fault-injection | ||
| fb | ||
| features | ||
| filesystems | ||
| firmware_class | ||
| fmc | ||
| fpga | ||
| frv | ||
| gpio | ||
| hid | ||
| hwmon | ||
| i2c | ||
| ia64 | ||
| ide | ||
| iio | ||
| infiniband | ||
| input | ||
| ioctl | ||
| isdn | ||
| ja_JP | ||
| kbuild | ||
| kdump | ||
| ko_KR | ||
| laptops | ||
| leds | ||
| locking | ||
| m68k | ||
| memory-devices | ||
| metag | ||
| mic | ||
| mips | ||
| misc-devices | ||
| mmc | ||
| mn10300 | ||
| mtd | ||
| namespaces | ||
| netlabel | ||
| networking | ||
| nfc | ||
| nios2 | ||
| nvdimm | ||
| nvmem | ||
| parisc | ||
| pcmcia | ||
| phy | ||
| platform | ||
| power | ||
| powerpc | ||
| pps | ||
| prctl | ||
| pti | ||
| ptp | ||
| rapidio | ||
| s390 | ||
| scheduler | ||
| scsi | ||
| security | ||
| serial | ||
| sh | ||
| sound | ||
| spi | ||
| sysctl | ||
| target | ||
| thermal | ||
| timers | ||
| tpm | ||
| trace | ||
| usb | ||
| vDSO | ||
| video4linux | ||
| virtual | ||
| vm | ||
| w1 | ||
| watchdog | ||
| wimax | ||
| x86 | ||
| xtensa | ||
| zh_CN | ||
| 00-INDEX | -rw-r--r-- | 16.8 KB |
| BUG-HUNTING | -rw-r--r-- | 8.1 KB |
| Changes | -rw-r--r-- | 11.6 KB |
| CodeOfConflict | -rw-r--r-- | 1.4 KB |
| CodingStyle | -rw-r--r-- | 34.0 KB |
| DMA-API-HOWTO.txt | -rw-r--r-- | 34.7 KB |
| DMA-API.txt | -rw-r--r-- | 27.5 KB |
| DMA-ISA-LPC.txt | -rw-r--r-- | 5.2 KB |
| DMA-attributes.txt | -rw-r--r-- | 5.7 KB |
| HOWTO | -rw-r--r-- | 26.8 KB |
| IPMI.txt | -rw-r--r-- | 29.4 KB |
| IRQ-affinity.txt | -rw-r--r-- | 2.5 KB |
| IRQ-domain.txt | -rw-r--r-- | 10.0 KB |
| IRQ.txt | -rw-r--r-- | 962 bytes |
| Intel-IOMMU.txt | -rw-r--r-- | 3.8 KB |
| Makefile | -rw-r--r-- | 177 bytes |
| ManagementStyle | -rw-r--r-- | 12.9 KB |
| SAK.txt | -rw-r--r-- | 2.8 KB |
| SM501.txt | -rw-r--r-- | 2.8 KB |
| SecurityBugs | -rw-r--r-- | 1.8 KB |
| SubmitChecklist | -rw-r--r-- | 4.4 KB |
| SubmittingDrivers | -rw-r--r-- | 6.2 KB |
| SubmittingPatches | -rw-r--r-- | 35.7 KB |
| VGA-softcursor.txt | -rw-r--r-- | 2.0 KB |
| adding-syscalls.txt | -rw-r--r-- | 23.8 KB |
| applying-patches.txt | -rw-r--r-- | 19.5 KB |
| assoc_array.txt | -rw-r--r-- | 20.0 KB |
| atomic_ops.txt | -rw-r--r-- | 22.0 KB |
| bad_memory.txt | -rw-r--r-- | 1.1 KB |
| basic_profiling.txt | -rw-r--r-- | 1.7 KB |
| bcache.txt | -rw-r--r-- | 16.4 KB |
| binfmt_misc.txt | -rw-r--r-- | 6.5 KB |
| braille-console.txt | -rw-r--r-- | 1.4 KB |
| bt8xxgpio.txt | -rw-r--r-- | 4.3 KB |
| btmrvl.txt | -rw-r--r-- | 2.9 KB |
| bus-virt-phys-mapping.txt | -rw-r--r-- | 7.9 KB |
| cachetlb.txt | -rw-r--r-- | 17.1 KB |
| cgroup-v2.txt | -rw-r--r-- | 56.7 KB |
| circular-buffers.txt | -rw-r--r-- | 8.4 KB |
| clk.txt | -rw-r--r-- | 10.3 KB |
| coccinelle.txt | -rw-r--r-- | 9.0 KB |
| cpu-hotplug.txt | -rw-r--r-- | 16.8 KB |
| cpu-load.txt | -rw-r--r-- | 3.0 KB |
| cputopology.txt | -rw-r--r-- | 4.5 KB |
| crc32.txt | -rw-r--r-- | 8.5 KB |
| dcdbas.txt | -rw-r--r-- | 3.6 KB |
| debugging-modules.txt | -rw-r--r-- | 954 bytes |
| debugging-via-ohci1394.txt | -rw-r--r-- | 7.4 KB |
| dell_rbu.txt | -rw-r--r-- | 4.9 KB |
| devices.txt | -rw-r--r-- | 116.2 KB |
| digsig.txt | -rw-r--r-- | 2.8 KB |
| dma-buf-sharing.txt | -rw-r--r-- | 22.0 KB |
| dontdiff | -rw-r--r-- | 2.5 KB |
| dynamic-debug-howto.txt | -rw-r--r-- | 12.6 KB |
| edac.txt | -rw-r--r-- | 24.7 KB |
| efi-stub.txt | -rw-r--r-- | 3.2 KB |
| eisa.txt | -rw-r--r-- | 7.1 KB |
| email-clients.txt | -rw-r--r-- | 10.9 KB |
| flexible-arrays.txt | -rw-r--r-- | 5.5 KB |
| futex-requeue-pi.txt | -rw-r--r-- | 5.0 KB |
| gcov.txt | -rw-r--r-- | 7.6 KB |
| gdb-kernel-debugging.txt | -rw-r--r-- | 5.9 KB |
| highuid.txt | -rw-r--r-- | 2.4 KB |
| hsi.txt | -rw-r--r-- | 2.9 KB |
| hw_random.txt | -rw-r--r-- | 3.5 KB |
| hwspinlock.txt | -rw-r--r-- | 12.7 KB |
| init.txt | -rw-r--r-- | 2.5 KB |
| initrd.txt | -rw-r--r-- | 14.1 KB |
| intel_txt.txt | -rw-r--r-- | 10.2 KB |
| io-mapping.txt | -rw-r--r-- | 3.2 KB |
| io_ordering.txt | -rw-r--r-- | 1.9 KB |
| iostats.txt | -rw-r--r-- | 8.0 KB |
| irqflags-tracing.txt | -rw-r--r-- | 2.3 KB |
| isapnp.txt | -rw-r--r-- | 433 bytes |
| java.txt | -rw-r--r-- | 10.9 KB |
| kasan.txt | -rw-r--r-- | 8.1 KB |
| kcov.txt | -rw-r--r-- | 3.4 KB |
| kernel-doc-nano-HOWTO.txt | -rw-r--r-- | 11.7 KB |
| kernel-docs.txt | -rw-r--r-- | 33.0 KB |
| kernel-parameters.txt | -rw-r--r-- | 152.9 KB |
| kernel-per-CPU-kthreads.txt | -rw-r--r-- | 13.2 KB |
| kmemcheck.txt | -rw-r--r-- | 29.9 KB |
| kmemleak.txt | -rw-r--r-- | 8.5 KB |
| kobject.txt | -rw-r--r-- | 18.0 KB |
| kprobes.txt | -rw-r--r-- | 30.3 KB |
| kref.txt | -rw-r--r-- | 8.4 KB |
| kselftest.txt | -rw-r--r-- | 2.4 KB |
| ldm.txt | -rw-r--r-- | 3.8 KB |
| local_ops.txt | -rw-r--r-- | 6.5 KB |
| lockup-watchdogs.txt | -rw-r--r-- | 4.1 KB |
| logo.gif | -rw-r--r-- | 16.0 KB |
| logo.txt | -rw-r--r-- | 563 bytes |
| lzo.txt | -rw-r--r-- | 7.8 KB |
| magic-number.txt | -rw-r--r-- | 8.7 KB |
| mailbox.txt | -rw-r--r-- | 4.1 KB |
| md-cluster.txt | -rw-r--r-- | 12.3 KB |
| md.txt | -rw-r--r-- | 25.3 KB |
| memory-barriers.txt | -rw-r--r-- | 112.3 KB |
| memory-hotplug.txt | -rw-r--r-- | 17.9 KB |
| men-chameleon-bus.txt | -rw-r--r-- | 6.1 KB |
| module-signing.txt | -rw-r--r-- | 10.3 KB |
| mono.txt | -rw-r--r-- | 2.5 KB |
| nommu-mmap.txt | -rw-r--r-- | 12.7 KB |
| ntb.txt | -rw-r--r-- | 6.3 KB |
| numastat.txt | -rw-r--r-- | 836 bytes |
| oops-tracing.txt | -rw-r--r-- | 12.8 KB |
| padata.txt | -rw-r--r-- | 7.3 KB |
| parport-lowlevel.txt | -rw-r--r-- | 32.2 KB |
| parport.txt | -rw-r--r-- | 8.8 KB |
| percpu-rw-semaphore.txt | -rw-r--r-- | 1.1 KB |
| phy.txt | -rw-r--r-- | 6.9 KB |
| pi-futex.txt | -rw-r--r-- | 5.7 KB |
| pinctrl.txt | -rw-r--r-- | 50.4 KB |
| pnp.txt | -rw-r--r-- | 6.8 KB |
| preempt-locking.txt | -rw-r--r-- | 5.2 KB |
| printk-formats.txt | -rw-r--r-- | 10.3 KB |
| pwm.txt | -rw-r--r-- | 4.7 KB |
| ramoops.txt | -rw-r--r-- | 5.2 KB |
| rbtree.txt | -rw-r--r-- | 13.3 KB |
| remoteproc.txt | -rw-r--r-- | 12.7 KB |
| rfkill.txt | -rw-r--r-- | 5.0 KB |
| robust-futex-ABI.txt | -rw-r--r-- | 8.7 KB |
| robust-futexes.txt | -rw-r--r-- | 9.4 KB |
| rpmsg.txt | -rw-r--r-- | 13.5 KB |
| rtc.txt | -rw-r--r-- | 10.3 KB |
| serial-console.txt | -rw-r--r-- | 4.0 KB |
| sgi-ioc4.txt | -rw-r--r-- | 2.0 KB |
| smsc_ece1099.txt | -rw-r--r-- | 2.4 KB |
| sparse.txt | -rw-r--r-- | 3.8 KB |
| stable_api_nonsense.txt | -rw-r--r-- | 9.2 KB |
| stable_kernel_rules.txt | -rw-r--r-- | 6.0 KB |
| static-keys.txt | -rw-r--r-- | 11.5 KB |
| svga.txt | -rw-r--r-- | 14.1 KB |
| sysfs-rules.txt | -rw-r--r-- | 9.0 KB |
| sysrq.txt | -rw-r--r-- | 11.8 KB |
| this_cpu_ops.txt | -rw-r--r-- | 11.1 KB |
| ubsan.txt | -rw-r--r-- | 3.1 KB |
| unaligned-memory-access.txt | -rw-r--r-- | 10.4 KB |
| unicode.txt | -rw-r--r-- | 6.5 KB |
| unshare.txt | -rw-r--r-- | 13.1 KB |
| vfio.txt | -rw-r--r-- | 21.3 KB |
| vgaarbiter.txt | -rw-r--r-- | 8.1 KB |
| video-output.txt | -rw-r--r-- | 1.1 KB |
| vme_api.txt | -rw-r--r-- | 13.4 KB |
| volatile-considered-harmful.txt | -rw-r--r-- | 5.6 KB |
| workqueue.txt | -rw-r--r-- | 14.7 KB |
| xillybus.txt | -rw-r--r-- | 17.7 KB |
| xz.txt | -rw-r--r-- | 5.7 KB |
| zorro.txt | -rw-r--r-- | 2.9 KB |
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