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%dnl %bcond rust_nightly 0
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Name: rust-hypervisor-firmware
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Version: 0.4.2
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Release: 1%{?dist}
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Summary: Simple firmware that is designed to be launched from anything that supports loading ELF binaries
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URL: https://github.com/cloud-hypervisor/rust-hypervisor-firmware
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Source0: %{url}/archive/refs/tags/%{version}.tar.gz
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License: Apache-2.0
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BuildRequires: anda-srpm-macros gcc cargo-rpm-macros
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%dnl %if %{with rust_nightly}
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BuildRequires: rustup
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%dnl %endif
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Packager: Owen Zimmerman <owen@fyralabs.com>
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%description
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This repository contains a simple firmware that is designed
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to be launched from anything that supports loading ELF
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binaries and running them with the PVH booting standard.
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The purpose is to be able to use this firmware to be able to
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load a bootloader from within a disk image without requiring
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the use of a complex firmware such as TianoCore/edk2 and without
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requiring the VMM to reuse functionality used for booting the Linux kernel.
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Currently it will directly load a kernel from a
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disk image that follows the Boot Loader Specification
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There is also minimal EFI compatibility support allowing the boot of
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some images that use EFI (shim + GRUB2 as used by Ubuntu).
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The firmware is primarily developed against Cloud Hypervisor
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but there is also support for using QEMU's PVH loader.
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This project was originally developed using Firecracker however as
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it does not currently support resetting the virtio block device it
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is not possible to boot all the way into the OS.
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%prep
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%autosetup -n %{name}-%{version}
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%dnl %if %{with rust_nightly}
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%rustup_nightly
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%dnl %endif
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%cargo_prep_online
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%build
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# ls -laH .cargo/bin
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# cat /builddir/build/BUILD/rust-hypervisor-firmware-0.4.2-build/.rustup/settings.toml
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# export RUSTFLAGS="-C linker=lld -C linker-flavor=ld.lld";
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# CARGO_HOME=/home/owen/rpmbuild/BUILD/.cargo RUSTUP_HOME=/home/owen/rpmbuild/BUILD/.rustup
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%{__cargo} build --profile rpm --target x86_64-unknown-none.json -Zbuild-std=core -Zbuild-std-features=compiler-builtins-mem
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%dnl %{cargo_build} -Zbuild-std=core -Zbuild-std-features=compiler-builtins-mem
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%install
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install -Dm755 target/rpm/hypervisor-fw %{buildroot}%{_bindir}/hypervisor-fw
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%cargo_license_summary_online
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%{cargo_license_online} > LICENSE.dependencies
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%files
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%doc README.md CONTRIBUTING.md CODE_OF_CONDUCT.md
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%license LICENSE
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%license LICENSE.dependencies
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%{_bindir}/hypervisor-fw
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%changelog
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* Fri Apr 03 2026 Owen Zimmerman <owen@fyralabs.com>
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- Initial commit
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Owen-sz