From d86be077a4d62e5615e97674dab8d894ce582b09 Mon Sep 17 00:00:00 2001 From: Liu Yu Date: Fri, 22 Jan 2010 18:50:29 +0800 Subject: [PATCH] KVM: PPC E500: Add register l1csr0 emulation Latest kernel start to access l1csr0 to contron L1. We just tell guest no operation is on going. Signed-off-by: Liu Yu Acked-by: Alexander Graf Signed-off-by: Marcelo Tosatti --- arch/powerpc/include/asm/kvm_e500.h | 1 + arch/powerpc/kvm/e500_emulate.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/arch/powerpc/include/asm/kvm_e500.h b/arch/powerpc/include/asm/kvm_e500.h index 9d497ce4972..569dfd31ee7 100644 --- a/arch/powerpc/include/asm/kvm_e500.h +++ b/arch/powerpc/include/asm/kvm_e500.h @@ -52,6 +52,7 @@ struct kvmppc_vcpu_e500 { u32 mas5; u32 mas6; u32 mas7; + u32 l1csr0; u32 l1csr1; u32 hid0; u32 hid1; diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index 7644f7a9bac..95f8ec8fdc7 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -99,6 +99,10 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs) vcpu_e500->mas6 = spr_val; break; case SPRN_MAS7: vcpu_e500->mas7 = spr_val; break; + case SPRN_L1CSR0: + vcpu_e500->l1csr0 = spr_val; + vcpu_e500->l1csr0 &= ~(L1CSR0_DCFI | L1CSR0_CLFC); + break; case SPRN_L1CSR1: vcpu_e500->l1csr1 = spr_val; break; case SPRN_HID0: @@ -179,6 +183,8 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt) break; } + case SPRN_L1CSR0: + kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr0); break; case SPRN_L1CSR1: kvmppc_set_gpr(vcpu, rt, vcpu_e500->l1csr1); break; case SPRN_HID0: -- 2.46.0