Date: Thu, 12 Mar 2026 15:09:19 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 293761] bhyve: map _any_ existing userspace memory region as guest physical memory Message-ID: <bug-293761-27103@https.bugs.freebsd.org/bugzilla/>
index | next in thread | raw e-mail
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293761 Bug ID: 293761 Summary: bhyve: map _any_ existing userspace memory region as guest physical memory Product: Base System Version: Unspecified Hardware: Any URL: https://github.com/LekKit/RVVM/issues/168#issuecomment -4047413881 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: fuz@FreeBSD.org The developer of the RVVM emulator wishes to make use of the VMM / bhyve functionality to accelerate the emulator and has asked for the following change to be made: https://github.com/LekKit/RVVM/issues/168#issuecomment-4047413881 > One thing I want to ask - If you know / can communicate with FreeBSD VMM (bhyve) > developers (I have not investigated where to contact), please ask for kernel-side > vmm functionality to map any existing userspace memory region as guest physical > memory. > I am working on RVVM hypervisor support (Both for native x86_64/arm64/riscv64 > virtualization and accelerating riscv64 MMU emulation), and the current FreeBSD > VMM kernel interface is a significant limitation for me. I would prefer to have a > generic interface in a form of vmm_map_phys(vmm, gpa, hva, size) and have it work > on things like XShm shared memory or file-backed mmap region, etc, which both KVM > and WHPX can provide. -- You are receiving this mail because: You are the assignee for the bug.home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-293761-27103>