diff options
Diffstat (limited to 'accel/kvm/kvm-all.c')
| -rw-r--r-- | accel/kvm/kvm-all.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index eecd8031cf..0e66ebb497 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -61,6 +61,10 @@ #endif #define PAGE_SIZE qemu_real_host_page_size +#ifndef KVM_GUESTDBG_BLOCKIRQ +#define KVM_GUESTDBG_BLOCKIRQ 0 +#endif + //#define DEBUG_KVM #ifdef DEBUG_KVM @@ -168,6 +172,8 @@ bool kvm_vm_attributes_allowed; bool kvm_direct_msi_allowed; bool kvm_ioeventfd_any_length_allowed; bool kvm_msi_use_devid; +bool kvm_has_guest_debug; +int kvm_sstep_flags; static bool kvm_immediate_exit; static hwaddr kvm_max_slot_size = ~0; @@ -2564,6 +2570,25 @@ static int kvm_init(MachineState *ms) kvm_ioeventfd_any_length_allowed = (kvm_check_extension(s, KVM_CAP_IOEVENTFD_ANY_LENGTH) > 0); +#ifdef KVM_CAP_SET_GUEST_DEBUG + kvm_has_guest_debug = + (kvm_check_extension(s, KVM_CAP_SET_GUEST_DEBUG) > 0); +#endif + + kvm_sstep_flags = 0; + if (kvm_has_guest_debug) { + kvm_sstep_flags = SSTEP_ENABLE; + +#if defined KVM_CAP_SET_GUEST_DEBUG2 + int guest_debug_flags = + kvm_check_extension(s, KVM_CAP_SET_GUEST_DEBUG2); + + if (guest_debug_flags & KVM_GUESTDBG_BLOCKIRQ) { + kvm_sstep_flags |= SSTEP_NOIRQ; + } +#endif + } + kvm_state = s; ret = kvm_arch_init(ms, s); @@ -3193,6 +3218,10 @@ int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap) if (cpu->singlestep_enabled) { data.dbg.control |= KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP; + + if (cpu->singlestep_enabled & SSTEP_NOIRQ) { + data.dbg.control |= KVM_GUESTDBG_BLOCKIRQ; + } } kvm_arch_update_guest_debug(cpu, &data.dbg); |