On 2022/6/8 11:26, Zhiquan Li wrote: > When a page triggers a machine check, it only reports the > physical address of EPC page. But in order to inject #MC into > hypervisor, the virtual address is required. Then repurpose the > "owner" field as the virtual address of the virtual EPC page so that > arch_memory_failure() can easily retrieve it. > > Add a new EPC page flag - SGX_EPC_PAGE_KVM_GUEST to interpret the > meaning of the field. > > Signed-off-by: Zhiquan Li <zhiquan1.li@xxxxxxxxx> Hi Cathy, I forgot to add your signature here. The flag SGX_EPC_PAGE_KVM_GUEST is taken from your patch: https://lore.kernel.org/linux-sgx/YoveWpEsH6Hghc5Y@xxxxxxxxxx/T/#u Can I add "Co-developed-by" as well as "Signed-off-by" for you? Best Regards, Zhiquan > --- > Changes since V3: > - Move the definition of EPC page flag SGX_EPC_PAGE_KVM_GUEST from > Cathy's third patch of SGX rebootless recovery patch set but discard > irrelevant portion, since it might need more time to re-forge and > these are two different features. > Link: https://lore.kernel.org/linux-sgx/41704e5d4c03b49fcda12e695595211d950cfb08.camel@xxxxxxxxxx/T/#m9782d23496cacecb7da07a67daa79f4b322ae170 > > Changes since V2: > - Rework the patch suggested by Jarkko. > - Remove struct sgx_vepc_page and relevant code. > - Remove new EPC page flag SGX_EPC_PAGE_IS_VEPC definition as it is > duplicated to SGX_EPC_PAGE_KVM_GUEST. > Link: https://lore.kernel.org/linux-sgx/eb95b32ecf3d44a695610cf7f2816785@xxxxxxxxx/T/#u > > Changes since V1: > - Add documentation suggested by Jarkko.
