FAILED: patch "[PATCH] KVM: nVMX: Truncate base/index GPR value on address calc in" failed to apply to 4.19-stable tree

The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 82277eeed65eed6c6ee5b8f97bd978763eab148f Mon Sep 17 00:00:00 2001
From: Sean Christopherson <[email protected]>
Date: Wed, 21 Apr 2021 19:21:25 -0700
Subject: [PATCH] KVM: nVMX: Truncate base/index GPR value on address calc in
!64-bit

Drop bits 63:32 of the base and/or index GPRs when calculating the effective address of a VMX instruction memory operand. Outside of 64-bit mode, memory encodings are strictly limited to E*X and below.

Message-Id: <[email protected]>

index f93ff2302b4c..ac838fb2aa4e 100644
@@ -4619,9 +4619,9 @@ int get_vmx_mem_address(struct kvm_vcpu *vcpu, unsigned long exit_qualification,
 	else if (addr_size == 0)
 		off = (gva_t)sign_extend64(off, 15);
 	if (base_is_valid)
-		off += kvm_register_read(vcpu, base_reg);
+		off += kvm_register_readl(vcpu, base_reg);
 	if (index_is_valid)
-		off += kvm_register_read(vcpu, index_reg) << scaling;
+		off += kvm_register_readl(vcpu, index_reg) << scaling;
 	vmx_get_segment(vcpu, &s, seg_reg);
 
 	/*