[PATCH -fixes v2] RISC-V: KVM: Require HAVE_KVM

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KVM requires EVENTFD, which is selected by HAVE_KVM. Other KVM
supporting architectures select HAVE_KVM and then their KVM
Kconfigs ensure its there with a depends on HAVE_KVM. Make RISCV
consistent with that approach which fixes configs which have KVM
but not EVENTFD, as was discovered with a randconfig test.

Fixes: 99cdc6c18c2d ("RISC-V: Add initial skeletal KVM support")
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Closes: https://lore.kernel.org/all/44907c6b-c5bd-4e4a-a921-e4d3825539d8@xxxxxxxxxxxxx/
Signed-off-by: Andrew Jones <ajones@xxxxxxxxxxxxxxxx>
---

v2:
 - Added Fixes tag and -fixes prefix [Alexandre/Anup]

 arch/riscv/Kconfig     | 1 +
 arch/riscv/kvm/Kconfig | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index a935a5f736b9..daba06a3b76f 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -128,6 +128,7 @@ config RISCV
 	select HAVE_KPROBES if !XIP_KERNEL
 	select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
 	select HAVE_KRETPROBES if !XIP_KERNEL
+	select HAVE_KVM
 	# https://github.com/ClangBuiltLinux/linux/issues/1881
 	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if !LD_IS_LLD
 	select HAVE_MOVE_PMD
diff --git a/arch/riscv/kvm/Kconfig b/arch/riscv/kvm/Kconfig
index 1fd76aee3b71..36fa8ec9e5ba 100644
--- a/arch/riscv/kvm/Kconfig
+++ b/arch/riscv/kvm/Kconfig
@@ -19,7 +19,7 @@ if VIRTUALIZATION
 
 config KVM
 	tristate "Kernel-based Virtual Machine (KVM) support (EXPERIMENTAL)"
-	depends on RISCV_SBI && MMU
+	depends on HAVE_KVM && RISCV_SBI && MMU
 	select HAVE_KVM_IRQCHIP
 	select HAVE_KVM_IRQ_ROUTING
 	select HAVE_KVM_MSI
-- 
2.43.0





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