lkml.org 
[lkml]   [2010]   [Feb]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 22/38] KVM: PPC E500: Add register l1csr0 emulation
    Date
    From: Liu Yu <yu.liu@freescale.com>

    Latest kernel start to access l1csr0 to contron L1.
    We just tell guest no operation is on going.

    Signed-off-by: Liu Yu <yu.liu@freescale.com>
    Acked-by: Alexander Graf <agraf@suse.de>
    Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
    ---
    arch/powerpc/include/asm/kvm_e500.h | 1 +
    arch/powerpc/kvm/e500_emulate.c | 6 ++++++
    2 files changed, 7 insertions(+), 0 deletions(-)

    diff --git a/arch/powerpc/include/asm/kvm_e500.h b/arch/powerpc/include/asm/kvm_e500.h
    index 9d497ce..569dfd3 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 7644f7a..95f8ec8 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:
    --
    1.6.5.3


    \
     
     \ /
      Last update: 2010-02-16 11:41    [W:0.037 / U:61.380 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site