AMD SEV-SNP boots with a single volatile firmware image OVMF.fd via the -bios option.
This requires building the `OvmfPkg/OvmfPkgX64.dsc` target. Also, SEV-ES and SEV-SNP do not support SMM [1,2]. Therefore, introduce a new target build-ovmf-cvm that builds OVMF firmware suitable for AMD SEV. [1] https://www.qemu.org/docs/master/system/i386/amd-memory-encryption. [2] https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/56421.pdf Signed-off-by: Philipp Giersfeld <philipp.giersf...@canarybit.eu> Tested-by: Markus Frank <m.fr...@proxmox.com> --- changes since v3: https://lists.proxmox.com/pipermail/pve-devel/2025-February/068578.html * Build SEV targets with secure boot support since edk2 has been updated debian/pve-edk2-firmware-ovmf.install | 3 +++ debian/rules | 28 +++++++++++++++++++++++++-- 2 files changed, 29 insertions(+), 2 deletions(-) diff --git a/debian/pve-edk2-firmware-ovmf.install b/debian/pve-edk2-firmware-ovmf.install index f4c0602..a51846e 100644 --- a/debian/pve-edk2-firmware-ovmf.install +++ b/debian/pve-edk2-firmware-ovmf.install @@ -1,5 +1,8 @@ debian/ovmf-install/OVMF_CODE*.fd /usr/share/pve-edk2-firmware debian/ovmf-install/OVMF_VARS*.fd /usr/share/pve-edk2-firmware +debian/ovmf-cvm-install/OVMF_CVM_CODE*.fd /usr/share/pve-edk2-firmware +debian/ovmf-cvm-install/OVMF_CVM_VARS*.fd /usr/share/pve-edk2-firmware +debian/ovmf-cvm-install/OVMF_CVM_4M.fd /usr/share/pve-edk2-firmware debian/ovmf32-install/OVMF32_CODE*.fd /usr/share/pve-edk2-firmware debian/ovmf32-install/OVMF32_VARS*.fd /usr/share/pve-edk2-firmware debian/PkKek-1-snakeoil.* /usr/share/pve-edk2-firmware diff --git a/debian/rules b/debian/rules index 2e9365b..c52d4fb 100755 --- a/debian/rules +++ b/debian/rules @@ -37,6 +37,7 @@ OVMF_4M_FLAGS = $(OVMF_COMMON_FLAGS) -DFD_SIZE_4MB OVMF_4M_SMM_FLAGS = $(OVMF_4M_FLAGS) -DSMM_REQUIRE=TRUE OVMF32_4M_FLAGS = $(OVMF_COMMON_FLAGS) -DFD_SIZE_4MB OVMF32_4M_SMM_FLAGS = $(OVMF32_4M_FLAGS) -DSMM_REQUIRE=TRUE +OVMF_CVM_4M_FLAGS = $(OVMF_4M_FLAGS) AAVMF_FLAGS = $(COMMON_FLAGS) AAVMF_FLAGS += -DTPM2_ENABLE=TRUE @@ -56,7 +57,7 @@ undefine CONF_PATH %: dh $@ -override_dh_auto_build: build-qemu-efi-aarch64 build-ovmf build-ovmf32 build-qemu-efi-riscv64 +override_dh_auto_build: build-qemu-efi-aarch64 build-ovmf build-ovmf32 build-ovmf-cvm build-qemu-efi-riscv64 debian/setup-build-stamp: cp -a debian/Logo.bmp MdeModulePkg/Logo/Logo.bmp @@ -79,6 +80,12 @@ OVMF32_SHELL = $(OVMF32_BUILD_DIR)/IA32/Shell.efi OVMF32_BINARIES = $(OVMF32_SHELL) OVMF32_IMAGES := $(addprefix $(OVMF32_INSTALL_DIR)/,OVMF32_CODE_4M.secboot.fd OVMF32_VARS_4M.fd) +OVMF_CVM_INSTALL_DIR = debian/ovmf-cvm-install +OVMF_CVM_BUILD_DIR = Build/OvmfX64/$(BUILD_TYPE)_$(EDK2_TOOLCHAIN) +OVMF_CVM_SHELL = $(OVMF_CVM_BUILD_DIR)/X64/Shell.efi +OVMF_CVM_BINARIES = $(OVMF_CVM_SHELL) +OVMF_CVM_IMAGES := $(addprefix $(OVMF_CVM_INSTALL_DIR)/,OVMF_CVM_CODE_4M.fd OVMF_CVM_VARS_4M.fd) + QEMU_EFI_BUILD_DIR = Build/ArmVirtQemu-$(EDK2_HOST_ARCH)/$(BUILD_TYPE)_$(EDK2_TOOLCHAIN) AAVMF_BUILD_DIR = Build/ArmVirtQemu-AARCH64/$(BUILD_TYPE)_$(EDK2_TOOLCHAIN) AAVMF_ENROLL = $(AAVMF_BUILD_DIR)/AARCH64/EnrollDefaultKeys.efi @@ -106,6 +113,23 @@ $(OVMF32_BINARIES) $(OVMF32_IMAGES): debian/setup-build-stamp cp $(OVMF32_BUILD_DIR)/FV/OVMF_VARS.fd \ $(OVMF32_INSTALL_DIR)/OVMF32_VARS_4M.fd +build-ovmf-cvm: $(OVMF_CVM_BINARIES) $(OVMF_CVM_IMAGES) +$(OVMF_CVM_BINARIES) $(OVMF_CVM_IMAGES): debian/setup-build-stamp + rm -rf $(OVMF_CVM_INSTALL_DIR) + mkdir $(OVMF_CVM_INSTALL_DIR) + set -e; . ./edksetup.sh; \ + build -a X64 \ + -t $(EDK2_TOOLCHAIN) \ + -p OvmfPkg/OvmfPkgX64.dsc \ + $(OVMF_CVM_4M_FLAGS) -b $(BUILD_TYPE) + #-b $(BUILD_TYPE) + cp $(OVMF_CVM_BUILD_DIR)/FV/OVMF_CODE.fd \ + $(OVMF_CVM_INSTALL_DIR)/OVMF_CVM_CODE_4M.fd + cp $(OVMF_CVM_BUILD_DIR)/FV/OVMF_VARS.fd \ + $(OVMF_CVM_INSTALL_DIR)/OVMF_CVM_VARS_4M.fd + cp $(OVMF_CVM_BUILD_DIR)/FV/OVMF.fd \ + $(OVMF_CVM_INSTALL_DIR)/OVMF_CVM_4M.fd + build-ovmf: $(OVMF_BINARIES) $(OVMF_IMAGES) $(OVMF_PREENROLLED_VARS) $(OVMF_BINARIES) $(OVMF_IMAGES): debian/setup-build-stamp rm -rf $(OVMF_INSTALL_DIR) @@ -250,4 +274,4 @@ get-orig-source: edk2-$(DEB_VERSION_UPSTREAM) rm -rf edk2.tmp edk2-$(DEB_VERSION_UPSTREAM) -.PHONY: build-ovmf build-ovmf32 build-qemu-efi build-qemu-efi-aarch64 build-qemu-efi-riscv64 +.PHONY: build-ovmf build-ovmf32 build-ovmf-cvm build-qemu-efi build-qemu-efi-aarch64 build-qemu-efi-riscv64 \ No newline at end of file -- 2.39.5 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
