Re: [libvirt][PATCH RESEND v10 0/5] Support query and use SGX

Because the 5th patch was sent by mistake, so replace the 5th patch and send it again. This patch series provides support for enabling Intel's Software Guard Extensions (SGX) feature in guest VM. Giving the SGX support in QEMU had been merged. Intel SGX is a set of instructions that increases the security of application code and data, giving them more protection from disclosure or modification. Developers can partition sensitive information into enclaves, which are areas of execution in memory with more security protection. It depends on QEMU fixing[1], which will move cpu QOM object from /machine/unattached/device[nn] to /machine/cpu[nn]. It requires libvirt to change the default cpu QOM object location once QEMU patch gets accepted, but it is out of this SGX patch scope. The typical flow looks below at very high level: 1. Calls virConnectGetDomainCapabilities API to domain capabilities that includes the following SGX information. <feature> ... <sgx supported='yes'> <epc_size unit='KiB'>N</epc_size> </sgx> ... </feature> 2. User requests to start a guest calling virCreateXML() with SGX requirement. It does not support NUMA yet, since latest QEMU 6.2 release does not support NUMA. It should contain <devices> ... <memory model='sgx-epc'> <target> <size unit='KiB'>N</size> </target> </memory> ... </devices> [1] https://lists.nongnu.org/archive/html/qemu-devel/2022-01/msg03534.html Haibin Huang (3): qemu: provide support to query the SGX capability conf: expose SGX feature in domain capabilities Add unit test for domaincapsdata sgx Lin Yang (2): conf: Introduce SGX EPC element into device memory xml Update default CPU location in qemu QOM tree