On Fri, Jul 09, 2021 at 07:09:22PM +0800, Yang Zhong wrote: > Since Sean Christopherson has left Intel and i am responsible for Qemu SGX > upstream work. His @intel.com address will be bouncing and his new email( > sea...@google.com) is also in CC lists. > > This series is Qemu SGX virtualization implementation rebased on latest > Qemu release. The numa support for SGX will be sent in another patchset > once this basic SGX patchset are merged. > > You can find Qemu repo here: > > https://github.com/intel/qemu-sgx.git upstream > > If you want to try SGX, you can directly install the linux release(at least > 5.13.0-rc1+) > since kvm SGX has been merged into linux release. > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > To simplify, you'd better install linux on host and guest, which can support > SGX on host and guest kernel. And to me, use below reference command to boot > SGX guest: > > #qemu-system-x86_64 \ > ...... \ > -cpu host,+sgx-provisionkey \ > -object memory-backend-epc,id=mem1,size=64M,prealloc=on \ > -object memory-backend-epc,id=mem2,size=28M \ > -M > sgx-epc.id.0=epc1,sgx-epc.memdev.0=mem1,sgx-epc.id.1=epc2,sgx-epc.memdev.1=mem2 > > Overview > ======== > > Intel Software Guard eXtensions (SGX) is a set of instructions and mechanisms > for memory accesses in order to provide security accesses for sensitive > applications and data. SGX allows an application to use it's pariticular > address space as an *enclave*, which is a protected area provides > confidentiality > and integrity even in the presence of privileged malware. Accesses to the > enclave memory area from any software not resident in the enclave are > prevented, > including those from privileged software. > > SGX virtaulization > ================== > > The KVM SGX creates one new misc device, sgx_vepc, and Qemu will open > '/dev/sgx_vepc' > device node to mmap() host EPC memory to guest. The Qemu also adds 'sgx-epc' > device > to expose EPC sections to guest through CPUID and ACPI table. The Qemu SGX > also > supports multiple virtual EPC sections to guest, we just put them together > physically > contiguous for the sake of simplicity. The kernel SGX NUMA has been merged > into Linux > tip tree, we will support this function in the next phase. > > Although the current host SGX subsystem can not support SGX2 feature, the > KVM/Qemu > implementation still expose this feature to guest. Guest SGX2 support doesn't > have > interaction with host kernel SGX driver, the SGX guest can normally use those > new > instructions. > > As for SGX virtualization detailed infomation, please reference > docs/intel-sgx.txt > docuement(patch 33). > > Changelog: > ========= > > (Changelog here is for global changes, please see each patch's changelog for > changes > made to specific patch.) > > v2-->v3: > - Rebased the sgx patches into latest Qemu release. > - Implemented the compound property for SGX, ref patch5, the command from > '-sgx-epc' > to '-M'. > - Moved the sgx common code from sgx-epc.c to sgx.c. The sgx-epc.c is > only responsible for virtual epc device. > - Removed the previous patch13(linux-headers: Add placeholder for > KVM_CAP_SGX_ATTRIBUTE) > because ehabk...@redhat.com updated Linux headers to 5.13-rc4 with > commit 278f064e452. > - Updated the patch1 because ram_flags were changed by David Hildenbra. > - Added one patch24, which avoid reset operation caused by bios reset. > - Added one patch25, which make prealloc property consistent with Qemu > cmdline during VM > reset. > > v1-->v2: > - Rebased the sgx patches into latest Qemu release. > - Unified the "share" and "protected" arguments with ram_flags in the > memory_region_init_ram_from_fd()(Paolo). > - Added the new MemoryBackendEpcProperties and related documents(Eric > Blake). > - Changed the KVM_CAP_SGX_ATTRIBUTE from 195 to 196(Kai). > - Changed the version and some grammar issues(Eric Blake). > > > Sean Christopherson (21): > memory: Add RAM_PROTECTED flag to skip IOMMU mappings > hostmem: Add hostmem-epc as a backend for SGX EPC > i386: Add 'sgx-epc' device to expose EPC sections to guest > vl: Add sgx compound properties to expose SGX EPC sections to guest > i386: Add primary SGX CPUID and MSR defines > i386: Add SGX CPUID leaf FEAT_SGX_12_0_EAX > i386: Add SGX CPUID leaf FEAT_SGX_12_0_EBX > i386: Add SGX CPUID leaf FEAT_SGX_12_1_EAX > i386: Add get/set/migrate support for SGX_LEPUBKEYHASH MSRs > i386: Add feature control MSR dependency when SGX is enabled > i386: Update SGX CPUID info according to hardware/KVM/user input > i386: kvm: Add support for exposing PROVISIONKEY to guest > i386: Propagate SGX CPUID sub-leafs to KVM > Adjust min CPUID level to 0x12 when SGX is enabled > hw/i386/fw_cfg: Set SGX bits in feature control fw_cfg accordingly > hw/i386/pc: Account for SGX EPC sections when calculating device > memory > i386/pc: Add e820 entry for SGX EPC section(s) > i386: acpi: Add SGX EPC entry to ACPI tables > q35: Add support for SGX EPC > i440fx: Add support for SGX EPC > doc: Add the SGX doc > > Yang Zhong (12): > qom: Add memory-backend-epc ObjectOptions support > hostmem-epc: Add the reset interface for EPC backend reset > sgx-epc: Add the reset interface for sgx-epc virt device > sgx-epc: Avoid bios reset during sgx epc initialization > hostmem-epc: Make prealloc consistent with qemu cmdline during reset > qmp: Add query-sgx command > hmp: Add 'info sgx' command > i386: Add sgx_get_info() interface > bitops: Support 32 and 64 bit mask macro > qmp: Add the qmp_query_sgx_capabilities() > Kconfig: Add CONFIG_SGX support > sgx-epc: Add the fill_device_info() callback support > > backends/hostmem-epc.c | 118 ++++++++++ > backends/meson.build | 1 + > default-configs/devices/i386-softmmu.mak | 1 + > docs/intel-sgx.txt | 167 ++++++++++++++ > hmp-commands-info.hx | 15 ++ > hw/core/machine.c | 36 +++ > hw/i386/Kconfig | 5 + > hw/i386/acpi-build.c | 22 ++ > hw/i386/fw_cfg.c | 10 +- > hw/i386/meson.build | 2 + > hw/i386/pc.c | 15 +- > hw/i386/pc_piix.c | 4 + > hw/i386/pc_q35.c | 3 + > hw/i386/sgx-epc.c | 271 +++++++++++++++++++++++ > hw/i386/sgx-stub.c | 13 ++ > hw/i386/sgx.c | 178 +++++++++++++++ > hw/vfio/common.c | 1 + > include/exec/memory.h | 15 +- > include/hw/boards.h | 1 + > include/hw/i386/pc.h | 10 + > include/hw/i386/sgx-epc.h | 68 ++++++ > include/monitor/hmp.h | 1 + > include/qemu/bitops.h | 7 + > monitor/hmp-cmds.c | 32 +++ > monitor/qmp-cmds.c | 19 ++ > qapi/machine.json | 43 +++- > qapi/misc.json | 61 +++++ > qapi/qom.json | 19 ++ > qemu-options.hx | 10 +- > softmmu/memory.c | 5 + > softmmu/physmem.c | 3 +- > stubs/meson.build | 1 + > stubs/sgx-stub.c | 12 + > target/i386/cpu.c | 168 +++++++++++++- > target/i386/cpu.h | 16 ++ > target/i386/kvm/kvm.c | 75 +++++++ > target/i386/kvm/kvm_i386.h | 2 + > target/i386/machine.c | 20 ++ > tests/qtest/qmp-cmd-test.c | 2 + > 39 files changed, 1442 insertions(+), 10 deletions(-) > create mode 100644 backends/hostmem-epc.c > create mode 100644 docs/intel-sgx.txt > create mode 100644 hw/i386/sgx-epc.c > create mode 100644 hw/i386/sgx-stub.c > create mode 100644 hw/i386/sgx.c > create mode 100644 include/hw/i386/sgx-epc.h > create mode 100644 stubs/sgx-stub.c > > -- > 2.29.2.334.gfaefdd61ec > >
Is there anything preventing to submit these to the public mailing lists? /Jarkko
