Thread (79 messages) 79 messages, 6 authors, 2021-03-23

[PATCH v3 36/41] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV

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From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-03-05 15:22:26
Subsystem: kernel virtual machine for powerpc (kvm/powerpc), linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

Revision v3 of 5 in this series.

Revisions (5)
  1. v2 [diff vs current]
  2. v3 current
  3. v4 [diff vs current]
  4. v5 [diff vs current]
  5. v6 [diff vs current]
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 928ed8180d9d..5debe7652928 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -5393,7 +5393,7 @@ 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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