Shuo A Liu b10b5658bd hv: nested: Introduce L2 VM EPT VIOLATION handler ... With shadow EPT, the hypervisor walks through guest EPT table: * If the entry is not present in guest EPT, ACRN injects EPT_VIOLATION to L1 VM and resumes to L1 VM. * If the entry is present in guest EPT, do the EPT_MISCONFIG check. Inject EPT_MISCONFIG to L1 VM if the check failed. * If the entry is present in guest EPT, do permission check. Reflect EPT_VIOLATION to L1 VM if the check failed. * If the entry is present in guest EPT but shadow EPT entry is not present, create the shadow entry and resumes to L2 VM. * If the entry is present in guest EPT but the GPA in the entry is invalid, injects EPT_VIOLATION to L1 VM and resumes L1 VM. Tracked-On: #5923 Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com> Signed-off-by: Zide Chen <zide.chen@intel.com> Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com> Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>		2021-06-04 13:53:47 +08:00
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x86	hv: nested: Introduce L2 VM EPT VIOLATION handler	2021-06-04 13:53:47 +08:00