4 commits

Author	SHA1	Message	Date
Sahan Fernando	ed0e7b53a5	Kernel: Move VirtIO code away from using a scatter gather list ... Currently, when passing buffers into VirtIOQueues, we use scatter-gather lists, which contain an internal vector of buffers. This vector is allocated, filled and the destroy whenever we try to provide buffers into a virtqueue, which would happen a lot in performance cricital code (the main transport mechanism for certain paravirtualized devices). This commit moves it over to using VirtIOQueueChains and building the chain in place in the VirtIOQueue. Also included are a bunch of fixups for the VirtIO Console device, making it use an internal VM::RingBuffer instead.	2021-05-13 10:00:42 +02:00
Gunnar Beutner	bf703ee553	Kernel: Move PCI vendor and device IDs into Kernel/PCI/IDs.h	2021-04-27 11:36:24 +02:00
Brian Gianforcaro	1682f0b760	Everything: Move to SPDX license identifiers in all files. ... SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *	2021-04-22 11:22:27 +02:00
Idan Horowitz	e4d9fa914e	Kernel: Add base support for VirtRNG (VirtIO based Hardware RNG) ... This is a very basic implementation that only requests 4096 bytes of entropy from the host once, but its still high quality entropy so it should be a good fix for #4490 (boot-time entropy starvation) for virtualized environments. Co-authored-by: Sahan <sahan.h.fernando@gmail.com>	2021-04-17 10:21:23 +02:00