Commit a84f7179 authored by Nikunj A Dadhania's avatar Nikunj A Dadhania Committed by David Gibson
Browse files

target/ppc/kvm: set vcpu as online/offline 



Set the newly added register(KVM_REG_PPC_ONLINE) to indicate if the vcpu is
online(1) or offline(0)

KVM will use this information to set the RWMR register, which controls the PURR
and SPURR accumulation.

CC: paulus@samba.org
Signed-off-by: default avatarNikunj A Dadhania <nikunj@linux.ibm.com>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent b12a4efb

hw/ppc/spapr_cpu_core.c

+1 −0
Original line number Diff line number Diff line
@@ -90,6 +90,7 @@ void spapr_cpu_set_entry_state(PowerPCCPU *cpu, target_ulong nip, target_ulong r 


    env->nip = nip;

    env->gpr[3] = r3;

    kvmppc_set_reg_ppc_online(cpu, 1);

    CPU(cpu)->halted = 0;

    /* Enable Power-saving mode Exit Cause exceptions */

    ppc_store_lpcr(cpu, env->spr[SPR_LPCR] | pcc->lpcr_pm);

hw/ppc/spapr_rtas.c

+2 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
#include "sysemu/device_tree.h"

#include "sysemu/cpus.h"

#include "sysemu/hw_accel.h"

#include "kvm_ppc.h"



#include "hw/ppc/spapr.h"

#include "hw/ppc/spapr_vio.h"
@@ -207,6 +208,7 @@ static void rtas_stop_self(PowerPCCPU *cpu, sPAPRMachineState *spapr, 
     * guest */

    ppc_store_lpcr(cpu, env->spr[SPR_LPCR] & ~pcc->lpcr_pm);

    cs->halted = 1;

    kvmppc_set_reg_ppc_online(cpu, 0);

    qemu_cpu_kick(cs);

}

target/ppc/kvm.c

+9 −0
Original line number Diff line number Diff line
@@ -2783,3 +2783,12 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu) 


    return !kvmppc_is_pr(cs->kvm_state);

}



void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online)

{

    CPUState *cs = CPU(cpu);



    if (kvm_enabled()) {

        kvm_set_one_reg(cs, KVM_REG_PPC_ONLINE, &online);

    }

}

target/ppc/kvm_ppc.h

+7 −0
Original line number Diff line number Diff line
@@ -72,6 +72,7 @@ bool kvmppc_pvr_workaround_required(PowerPCCPU *cpu); 


bool kvmppc_hpt_needs_host_contiguous_pages(void);

void kvm_check_mmu(PowerPCCPU *cpu, Error **errp);

void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu, unsigned int online);



#else
@@ -187,6 +188,12 @@ static inline target_ulong kvmppc_configure_v3_mmu(PowerPCCPU *cpu, 
    return 0;

}



static inline void kvmppc_set_reg_ppc_online(PowerPCCPU *cpu,

                                             unsigned int online)

{

    return;

}



#ifndef CONFIG_USER_ONLY

static inline bool kvmppc_spapr_use_multitce(void)

{