Date: Wed, 22 Jan 2014 17:15:42 -0500 From: John Baldwin <jhb@freebsd.org> To: virtualization@freebsd.org Subject: bhyve and legacy Message-ID: <201401221715.42164.jhb@freebsd.org>
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Is there any interest in supporting more "legacy" setups via bhyve? In particular, I'd like to take a whack at improving the PCI INTx support, but that can involve several things such as possibly implementing 8259A support and a PCI interrupt router vs always assuming that we have APICs. If we do want to support a more legacy route, is there interest in supporting a BIOS interface in the VM? I know that one option is to go grab a BIOS ROM from something like qemu, but another option is to have the real-mode IDT vector to stub routines in a very small ROM that traps to the hypervisor to implement BIOS requests. OTOH, that may turn out to be rather messy. Finally, I noticed a comment fly by about removing the need for bhyveload. One thing I have found useful recently is passing -H to bhyveload. Specifically, I can build a test kernel outside of the VM on the host and access it via the host0 filesystem in bhyveload so I can easily test kernels in the VM while still using the host as my development environment. It would be nice to retain this ability in some fashion. -- John Baldwin
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