Hi

Again while working on a larger patch i noticed that the eptp for vmx
was not getting initialised to zero like the svm code path, as part of
a VMM_IOC_RESETCPU ioctl call.

please see the attach patch to initialise eptp to zero

cheers
Adam

? div
Index: sys/arch/amd64/amd64/vmm.c
===================================================================
RCS file: /cvs/src/sys/arch/amd64/amd64/vmm.c,v
retrieving revision 1.258
diff -u -p -u -p -r1.258 vmm.c
--- sys/arch/amd64/amd64/vmm.c  31 Jan 2020 01:51:27 -0000      1.258
+++ sys/arch/amd64/amd64/vmm.c  6 Feb 2020 02:18:30 -0000
@@ -2895,6 +2895,8 @@ vcpu_reset_regs_vmx(struct vcpu *vcpu, s
        /* xcr0 power on default sets bit 0 (x87 state) */
        vcpu->vc_gueststate.vg_xcr0 = XCR0_X87 & xsave_mask;
 
+       vcpu->vc_parent->vm_map->pmap->eptp = 0;
+
 exit:
        /* Flush the VMCS */
        if (vmclear(&vcpu->vc_control_pa)) {


Reply via email to