diff options
author | Bharat Bhushan <r65777@freescale.com> | 2012-05-20 23:21:23 (GMT) |
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committer | Alexander Graf <agraf@suse.de> | 2012-05-30 09:43:11 (GMT) |
commit | 21bd000abff7d587229dbbee6f8c17f3aad9f9d8 (patch) | |
tree | 23bc78396196e5253e3330f03cf2eecb41a067b3 /arch/powerpc/kvm | |
parent | 32fad281c0680ed0ccade7dda85a2121cf9b1d06 (diff) | |
download | linux-fsl-qoriq-21bd000abff7d587229dbbee6f8c17f3aad9f9d8.tar.xz |
KVM: PPC: booke: Added DECAR support
Added the decrementer auto-reload support. DECAR is readable
on e500v2/e500mc and later cpus.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r-- | arch/powerpc/kvm/booke.c | 5 | ||||
-rw-r--r-- | arch/powerpc/kvm/booke_emulate.c | 3 | ||||
-rw-r--r-- | arch/powerpc/kvm/e500_emulate.c | 3 |
3 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 72f13f4..86681ee 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -1267,6 +1267,11 @@ void kvmppc_decrementer_func(unsigned long data) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data; + if (vcpu->arch.tcr & TCR_ARE) { + vcpu->arch.dec = vcpu->arch.decar; + kvmppc_emulate_dec(vcpu); + } + kvmppc_set_tsr_bits(vcpu, TSR_DIS); } diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c index 6c76397..9eb9809 100644 --- a/arch/powerpc/kvm/booke_emulate.c +++ b/arch/powerpc/kvm/booke_emulate.c @@ -129,6 +129,9 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val) kvmppc_set_tcr(vcpu, spr_val); break; + case SPRN_DECAR: + vcpu->arch.decar = spr_val; + break; /* * Note: SPRG4-7 are user-readable. * These values are loaded into the real SPRGs when resuming the diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index 8b99e07..e04b0ef 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -269,6 +269,9 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val) *spr_val = vcpu->arch.shared->mas7_3 >> 32; break; #endif + case SPRN_DECAR: + *spr_val = vcpu->arch.decar; + break; case SPRN_TLB0CFG: *spr_val = vcpu->arch.tlbcfg[0]; break; |