From 078ebe35fc0a8ab847809765be34937e656e70a6 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Mon, 18 Jan 2021 16:28:08 +1000 Subject: KVM: PPC: Book3S HV: No need to clear radix host SLB before loading HPT guest Signed-off-by: Nicholas Piggin Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index 174e7b6eba34..e413d8e34dd8 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -902,15 +902,19 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) cmpdi r3, 512 /* 1 microsecond */ blt hdec_soon - /* For hash guest, clear out and reload the SLB */ ld r6, VCPU_KVM(r4) lbz r0, KVM_RADIX(r6) cmpwi r0, 0 bne 9f + + /* For hash guest, clear out and reload the SLB */ +BEGIN_MMU_FTR_SECTION + /* Radix host won't have populated the SLB, so no need to clear */ li r6, 0 slbmte r6, r6 slbia ptesync +END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX) /* Load up guest SLB entries (N.B. slb_max will be 0 for radix) */ lwz r5,VCPU_SLB_MAX(r4) -- cgit