diff options
Diffstat (limited to 'kvm-all.c')
| -rw-r--r-- | kvm-all.c | 23 |
1 files changed, 15 insertions, 8 deletions
@@ -59,6 +59,9 @@ struct KVMState int vmfd; int regs_modified; int coalesced_mmio; +#ifdef KVM_CAP_COALESCED_MMIO + struct kvm_coalesced_mmio_ring *coalesced_mmio_ring; +#endif int broken_set_mem_region; int migration_log; int vcpu_events; @@ -200,6 +203,12 @@ int kvm_init_vcpu(CPUState *env) goto err; } +#ifdef KVM_CAP_COALESCED_MMIO + if (s->coalesced_mmio && !s->coalesced_mmio_ring) + s->coalesced_mmio_ring = (void *) env->kvm_run + + s->coalesced_mmio * PAGE_SIZE; +#endif + ret = kvm_arch_init_vcpu(env); if (ret == 0) { qemu_register_reset(kvm_reset_vcpu, env); @@ -466,10 +475,10 @@ int kvm_init(int smp_cpus) goto err; } + s->coalesced_mmio = 0; #ifdef KVM_CAP_COALESCED_MMIO s->coalesced_mmio = kvm_check_extension(s, KVM_CAP_COALESCED_MMIO); -#else - s->coalesced_mmio = 0; + s->coalesced_mmio_ring = NULL; #endif s->broken_set_mem_region = 1; @@ -544,14 +553,12 @@ static int kvm_handle_io(uint16_t port, void *data, int direction, int size, return 1; } -static void kvm_run_coalesced_mmio(CPUState *env, struct kvm_run *run) +void kvm_flush_coalesced_mmio_buffer(void) { #ifdef KVM_CAP_COALESCED_MMIO KVMState *s = kvm_state; - if (s->coalesced_mmio) { - struct kvm_coalesced_mmio_ring *ring; - - ring = (void *)run + (s->coalesced_mmio * TARGET_PAGE_SIZE); + if (s->coalesced_mmio_ring) { + struct kvm_coalesced_mmio_ring *ring = s->coalesced_mmio_ring; while (ring->first != ring->last) { struct kvm_coalesced_mmio *ent; @@ -609,7 +616,7 @@ int kvm_cpu_exec(CPUState *env) abort(); } - kvm_run_coalesced_mmio(env, run); + kvm_flush_coalesced_mmio_buffer(); ret = 0; /* exit loop */ switch (run->exit_reason) { |