haraldwolff/qemu-patch-raspberry4
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PPC: KVM: Add support for EPR with KVM

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This patch links KVM EPR support to the existing TCG support we have now.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-01-17 11:54:38 +01:00
parent e49798b1bd
commit 5b95b8b9c1
3 changed files with 32 additions and 0 deletions
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6
hw/ppc.c
View file

@ -435,7 +435,13 @@ void ppce500_set_mpic_proxy(bool enabled)
CPUPPCState *env;
for (env = first_cpu; env != NULL; env = env->next_cpu) {
PowerPCCPU *cpu = ppc_env_get_cpu(env);
CPUState *cs = CPU(cpu);
env->mpic_proxy = enabled;
if (kvm_enabled()) {
kvmppc_set_mpic_proxy(POWERPC_CPU(cs), enabled);
}
}
}

21
target-ppc/kvm.c
View file

@ -846,6 +846,11 @@ int kvm_arch_handle_exit(CPUState *cs, struct kvm_run *run)
ret = 0;
break;
#endif
case KVM_EXIT_EPR:
dprintf("handle epr\n");
run->epr.epr = ldl_phys(env->mpic_iack);
ret = 0;
break;
default:
fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
ret = -1;
@ -1057,6 +1062,22 @@ void kvmppc_set_papr(PowerPCCPU *cpu)
}
}
void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
{
CPUPPCState *env = &cpu->env;
CPUState *cs = CPU(cpu);
struct kvm_enable_cap cap = {};
int ret;
cap.cap = KVM_CAP_PPC_EPR;
cap.args[0] = mpic_proxy;
ret = kvm_vcpu_ioctl(cs, KVM_ENABLE_CAP, &cap);
if (ret && mpic_proxy) {
cpu_abort(env, "This KVM version does not support EPR\n");
}
}
int kvmppc_smt_threads(void)
{
return cap_ppc_smt ? cap_ppc_smt : 1;

5
target-ppc/kvm_ppc.h
View file

@ -25,6 +25,7 @@ int kvmppc_get_hasidle(CPUPPCState *env);
int kvmppc_get_hypercall(CPUPPCState *env, uint8_t *buf, int buf_len);
int kvmppc_set_interrupt(PowerPCCPU *cpu, int irq, int level);
void kvmppc_set_papr(PowerPCCPU *cpu);
void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy);
int kvmppc_smt_threads(void);
#ifndef CONFIG_USER_ONLY
off_t kvmppc_alloc_rma(const char *name, MemoryRegion *sysmem);
@ -81,6 +82,10 @@ static inline void kvmppc_set_papr(PowerPCCPU *cpu)
{
}
static inline void kvmppc_set_mpic_proxy(PowerPCCPU *cpu, int mpic_proxy)
{
}
static inline int kvmppc_smt_threads(void)
{
return 1;