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virtio: feature negotiation

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Matheus
2024-03-29 13:36:48 -03:00
parent 2030ca8c5b
commit 87b0ff64b2
3 changed files with 27 additions and 5 deletions
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kernel-src/io/block/vioblk.c
+1 -4
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@@ -151,10 +151,7 @@ int vioblk_newdevice(viodevice_t *viodevice) {
pci_initmsix(viodevice->e);
// TODO support several queues
// no extra features will be used yet
VIO_CONFIG_STATUS_SET(viodevice, VIO_CONFIG_STATUS_FEATURESOK);
if ((viodevice->config->status & VIO_CONFIG_STATUS_FEATURESOK) == 0)
return 1;
__assert(virtio_negotiatefeatures(viodevice, VIO_FEATURE_VERSION_1) == VIO_FEATURE_VERSION_1);
// initialize device object
vioblkdev_t *blkdev = alloc(sizeof(vioblkdev_t));