From 2daab50e17997424af57d1ab14042a51e9a368ab Mon Sep 17 00:00:00 2001 From: Tudor Laurentiu Date: Fri, 25 Sep 2015 18:02:23 +0300 Subject: KVM: PPC: e500: Emulate TMCFG0 TMRN register Emulate TMCFG0 TMRN register exposing one HW thread per vcpu. Signed-off-by: Mihai Caraman [Laurentiu.Tudor@freescale.com: rebased on latest kernel, use define instead of hardcoded value, moved code in own function] Signed-off-by: Laurentiu Tudor Acked-by: Scott Wood Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/e500_emulate.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'arch/powerpc/kvm/e500_emulate.c') diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c index ce7291c79f6c..990db69a1d0b 100644 --- a/arch/powerpc/kvm/e500_emulate.c +++ b/arch/powerpc/kvm/e500_emulate.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "booke.h" #include "e500.h" @@ -22,6 +23,7 @@ #define XOP_DCBTLS 166 #define XOP_MSGSND 206 #define XOP_MSGCLR 238 +#define XOP_MFTMR 366 #define XOP_TLBIVAX 786 #define XOP_TLBSX 914 #define XOP_TLBRE 946 @@ -113,6 +115,19 @@ static int kvmppc_e500_emul_dcbtls(struct kvm_vcpu *vcpu) return EMULATE_DONE; } +static int kvmppc_e500_emul_mftmr(struct kvm_vcpu *vcpu, unsigned int inst, + int rt) +{ + /* Expose one thread per vcpu */ + if (get_tmrn(inst) == TMRN_TMCFG0) { + kvmppc_set_gpr(vcpu, rt, + 1 | (1 << TMRN_TMCFG0_NATHRD_SHIFT)); + return EMULATE_DONE; + } + + return EMULATE_FAIL; +} + int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, unsigned int inst, int *advance) { @@ -165,6 +180,10 @@ int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu, emulated = kvmppc_e500_emul_tlbivax(vcpu, ea); break; + case XOP_MFTMR: + emulated = kvmppc_e500_emul_mftmr(vcpu, inst, rt); + break; + case XOP_EHPRIV: emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst, advance); -- cgit v1.2.3