[PATCH 2/2] KVM: arm64: Depend on HAVE_KVM => OF instead of directly on OF

From: Sean Christopherson
Date: Tue Sep 21 2021 - 18:22:47 EST


Select HAVE_KVM if the KVM dependency is met (OF / Open Firmware), and
make KVM depend on HAVE_KVM instead of directly on OF. This fixes the
oddity where arm64 configs can end up with KVM=y and HAVE_KVM=n, and will
hopefully prevent breakage if there are future users of HAVE_KVM.

Note, arm64 unconditionally selects OF, and has always done so (see
commit 8c2c3df31e3b ("arm64: Build infrastructure"). Keep the somewhat
pointless HAVE_KVM dependency on OF to document that KVM requires Open
Firmware support.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/arm64/Kconfig | 1 +
arch/arm64/kvm/Kconfig | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b5b13a932561..38c0f36a5ed4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -187,6 +187,7 @@ config ARM64
select HAVE_GCC_PLUGINS
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_KVM if OF
select HAVE_NMI
select HAVE_PATA_PLATFORM
select HAVE_PERF_EVENTS
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index c50f75cf76fe..e1e400bd8de5 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -20,7 +20,7 @@ if VIRTUALIZATION

menuconfig KVM
bool "Kernel-based Virtual Machine (KVM) support"
- depends on OF
+ depends on HAVE_KVM
select MMU_NOTIFIER
select PREEMPT_NOTIFIERS
select HAVE_KVM_CPU_RELAX_INTERCEPT
--
2.33.0.464.g1972c5931b-goog