linux-kernel - [RFC 02/55] KVM: arm64: Add nesting config option

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Message-Id: <1483943091-1364-3-git-send-email-jintack@cs.columbia.edu>
Date:   Mon,  9 Jan 2017 01:23:58 -0500
From:   Jintack Lim <jintack@...columbia.edu>
To:     christoffer.dall@...aro.org, marc.zyngier@....com,
        pbonzini@...hat.com, rkrcmar@...hat.com, linux@...linux.org.uk,
        catalin.marinas@....com, will.deacon@....com,
        vladimir.murzin@....com, suzuki.poulose@....com,
        mark.rutland@....com, james.morse@....com,
        lorenzo.pieralisi@....com, kevin.brodsky@....com,
        wcohen@...hat.com, shankerd@...eaurora.org, geoff@...radead.org,
        andre.przywara@....com, eric.auger@...hat.com,
        anna-maria@...utronix.de, shihwei@...columbia.edu,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     jintack@...columbia.edu
Subject: [RFC 02/55] KVM: arm64: Add nesting config option

From: Christoffer Dall <christoffer.dall@...aro.org>

Add an option that allows nested hypervisor support.

Signed-off-by: Christoffer Dall <christoffer.dall@...aro.org>
Signed-off-by: Jintack Lim <jintack@...columbia.edu>
---
 arch/arm64/kvm/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 6eaf12c..37263ff 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -57,6 +57,12 @@ config KVM_ARM_PMU
 	  Adds support for a virtual Performance Monitoring Unit (PMU) in
 	  virtual machines.
 
+config KVM_ARM_NESTED_HYP
+	bool "Nested Virtualization"
+	depends on KVM
+	---help---
+	  Support nested hypervisors in VMs.
+
 source drivers/vhost/Kconfig
 
 endif # VIRTUALIZATION
-- 
1.9.1