github/acrn-hypervisor
1
0
Fork 0
mirror of https://github.com/projectacrn/acrn-hypervisor.git synced 2025-06-24 06:29:19 +00:00
Code Issues Projects Releases Wiki Activity

hv: Not to destroy ept of trusty memory if it's not initialized.

Browse Source 
If guest reboot is issued before trusty init hypercall is issued,
we shouldn't destroy ept fo trusty memory because the ept is not
created yet.

Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Yin Fengwei 2018-04-19 13:50:05 +08:00 committed by lijinxia
parent c9ce5e475b
commit adcb5ea53d
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/x86/ept.c
View File

@ -125,8 +125,15 @@ void destroy_ept(struct vm *vm)
{
free_ept_mem(HPA2HVA(vm->arch_vm.nworld_eptp));
free_ept_mem(HPA2HVA(vm->arch_vm.m2p));
/* Destroy Secure world ept */
if (vm->sworld_control.sworld_enabled)
/*
* If secure world is initialized, destroy Secure world ept.
* There are two cases secure world is not initialized:
* - trusty is not enabled. Check sworld_enabled.
* - trusty is enabled. But not initialized yet.
* Check vm->arch_vm.sworld_eptp.
*/
if (vm->sworld_control.sworld_enabled && vm->arch_vm.sworld_eptp)
free_ept_mem(HPA2HVA(vm->arch_vm.sworld_eptp));
}