Il 18/08/2014 12:52, Xiao Guangrong ha scritto: >> > EPT misconfig handler in kvm will check which reason lead to EPT >> > misconfiguration after vmexit. One of the reasons is that an EPT >> > paging-structure entry is configured with settings reserved for >> > future functionality. However, the handler can't identify if >> > paging-structure entry of reserved bits for 1-GByte page are >> > configured, since PDPTE which point to 1-GByte page will reserve >> > bits 29:12 instead of bits 7:3 which are reserved for PDPTE that >> > references an EPT Page Directory. This patch fix it by reserve >> > bits 29:12 for 1-GByte page. > That mask is only set in the lowest pte for 4K page, i think it > is not a problem, no? It will cause KVM to WARN. The EPT memory type will also be ignored for gigabyte pages. Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
