genode/repos/ports/src/virtualbox5/patches/vm.patch

27 lines
991 B
Diff

--- a/src/app/virtualbox/src/VBox/VMM/VMMR3/VM.cpp
+++ b/src/app/virtualbox/src/VBox/VMM/VMMR3/VM.cpp
@@ -605,7 +605,7 @@
rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_GVMM_CREATE_VM, 0, &CreateVMReq.Hdr);
if (RT_SUCCESS(rc))
{
- PVM pVM = pUVM->pVM = CreateVMReq.pVMR3;
+ PVM pVM = CreateVMReq.pVMR3;
AssertRelease(VALID_PTR(pVM));
AssertRelease(pVM->pVMR0 == CreateVMReq.pVMR0);
AssertRelease(pVM->pSession == pUVM->vm.s.pSession);
@@ -635,6 +635,14 @@
pUVM->aCpus[i].pVM = pVM;
}
+ /*
+ * vmR3EmulationThreadWithId checks (from within another thread) for
+ * !pUVM->pVM. If not null the function also expects
+ * pUVM->aCpus[i].pVCpu to be not null. So, make the assignment after
+ * pUVM->aCpus[i] are actually initialized.
+ */
+ ASMCompilerBarrier();
+ pUVM->pVM = pVM;
/*
* Init the configuration.