Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 27cd63fe authored by Ladi Prosek's avatar Ladi Prosek Committed by Greg Kroah-Hartman
Browse files

KVM: nVMX: set IDTR and GDTR limits when loading L1 host state 



commit 21f2d551183847bc7fbe8d866151d00cdad18752 upstream.

Intel SDM 27.5.2 Loading Host Segment and Descriptor-Table Registers:

"The GDTR and IDTR limits are each set to FFFFH."

Signed-off-by: default avatarLadi Prosek <lprosek@redhat.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eeb6715f

arch/x86/kvm/vmx.c

+2 −0
Original line number Diff line number Diff line
@@ -8929,6 +8929,8 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu, 
	vmcs_writel(GUEST_SYSENTER_EIP, vmcs12->host_ia32_sysenter_eip);

	vmcs_writel(GUEST_IDTR_BASE, vmcs12->host_idtr_base);

	vmcs_writel(GUEST_GDTR_BASE, vmcs12->host_gdtr_base);

	vmcs_write32(GUEST_IDTR_LIMIT, 0xFFFF);

	vmcs_write32(GUEST_GDTR_LIMIT, 0xFFFF);



	/* If not VM_EXIT_CLEAR_BNDCFGS, the L2 value propagates to L1.  */

	if (vmcs12->vm_exit_controls & VM_EXIT_CLEAR_BNDCFGS)