[PATCH 5.11 390/775] powerpc/kvm: Force selection of CONFIG_PPC_FPU

From: Greg Kroah-Hartman
Date: Tue Mar 02 2021 - 00:06:58 EST


From: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

[ Upstream commit 27f699579b64dbf27caf31e5c0eac567ec0aa8b8 ]

book3s/32 kvm is designed with the assumption that
an FPU is always present.

Force selection of FPU support in the kernel when
build KVM.

Fixes: 7d68c8916950 ("powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/74461a99fa1466f361532ca794ca0753be3d9f86.1611038044.git.christophe.leroy@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/powerpc/kvm/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 549591d9aaa2c..e45644657d49d 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -54,6 +54,7 @@ config KVM_BOOK3S_32
select KVM
select KVM_BOOK3S_32_HANDLER
select KVM_BOOK3S_PR_POSSIBLE
+ select PPC_FPU
help
Support running unmodified book3s_32 guest kernels
in virtual machines on book3s_32 host processors.
--
2.27.0