Thread (65 messages) 65 messages, 3 authors, 2021-04-10

[PATCH v6 42/48] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV

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From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-04-05 01:39:00
Subsystem: kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

All radix guests go via the P9 path now, so there is no need to limit
nested HV to processors that support "mixed mode" MMU. Remove the
restriction.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/kvm/book3s_hv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 20ced6c5edfd..5ef43d9b19bc 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -5443,7 +5443,7 @@ static int kvmhv_enable_nested(struct kvm *kvm)
 {
 	if (!nested)
 		return -EPERM;
-	if (!cpu_has_feature(CPU_FTR_ARCH_300) || no_mixing_hpt_and_radix)
+	if (!cpu_has_feature(CPU_FTR_ARCH_300))
 		return -ENODEV;
 
 	/* kvm == NULL means the caller is testing if the capability exists */
-- 
2.23.0
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