[Bug 277627] Passthru NVIDIA GeForce GTX 1080 Ti does not work

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277627

--- Comment #4 from mario felicioni <marietto2008@gmail.com> ---
Lets create these script files :

1) build_branch_releng-140 :

set -e
set -u

readonly script_path="$(cd "$(dirname "${0}")" && pwd)"
readonly branch="${1?Missing <branch>$(usage)}"
shift
echo $branch

cd /usr/corvin-src-releng-140
git fetch --all --prune
git checkout -f "${branch}"

${script_path}/build_releng_140 "$@"


2) build_releng_140 :


#!/bin/sh
usage() {
        cat >&2 << EOF
Usage: ${0} [--no-bhf] [--reboot] [--verbose] [--without-kernel]
        Builds bhyve
EOF
        exit 1
}

build_module() {
        local _path
        _path="${1}"

        # change to module path
        cd "${_path}"

        # clean module
        if test "${clean}" = "true"; then
                make clean > "${cmd_redirect}" 2>&1
        fi

        # build module
        make > "${cmd_redirect}" 2>&1

        # install module
        make install > "${cmd_redirect}"
}

build() {
        build_module "${src_dir}/include"
        build_module "${src_dir}/lib/libvmmapi"
        build_module "${src_dir}/sys/modules/vmm"

        # build kernel
        if test "${with_kernel}" = "true"; then
                cd "${src_dir}"
                local kern_opts
                kern_opts="-j$(sysctl -n hw.ncpu)"
                if test "${with_bhf}" = "true"; then
                        kern_opts="${kern_opts} KERNCONF=BHF"
                fi
                if ! test "${clean}" = "true"; then
                        kern_opts="${kern_opts} NO_CLEAN=YES"
                fi
                make kernel ${kern_opts} > "${cmd_redirect}" 2>&1
        fi

        build_module "${src_dir}/usr.sbin/bhyve"
        build_module "${src_dir}/usr.sbin/bhyvectl"
        build_module "${src_dir}/usr.sbin/bhyveload"

        if test "${with_reboot}" = "true"; then
                reboot
        fi
}

set -e
set -u

while test $# -gt 0; do
        case "${1-}" in
                --clean)
                        clean="true"
                        shift
                        ;;
                --reboot)
                        with_reboot="true"
                        shift
                        ;;
                --src-dir=*)
                        src_dir="${1#*=}"
                        shift
                        ;;
                --verbose)
                        cmd_redirect="/dev/stdout"
                        shift
                        ;;
                --without-bhf)
                        with_bhf="false"
                        shift
                        ;;
                --without-kernel)
                        with_kernel="false"
                        shift
                        ;;
                *)
                        usage
                        ;;
        esac
done

readonly clean="${clean-"false"}"
readonly cmd_redirect="${cmd_redirect-"/dev/null"}"
readonly src_dir="${src_dir-"/usr/corvin-src-releng-140"}"
echo $src_dir
readonly with_bhf="${with_bhf-"true"}"
readonly with_kernel="${with_kernel-"true"}"
readonly with_reboot="${with_reboot-"false"}"
build


3) compile-bhyve-releng-140 :


cd /usr/
mv src src-old
git clone https://github.com/beckhoff/freebsd-src /usr/corvin-src-releng-140
cd /usr/corvin-src-releng-140
./build_branch_releng-140 origin/phab/corvink/14.0/nvidia-wip --without-bhf
--verbose


and run : ./compile-bhyve-releng-140 (on FreeBSD 14.0)

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