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gdbstub, kvm: let KVM report supported singlestep flags

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Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
[Extracted from Maxim's patch into a separate commit. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20211111110604.207376-5-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Maxim Levitsky 2021-11-11 12:06:03 +01:00 • committed by Paolo Bonzini
parent ecd39d620b
commit 12bc5b4cd5
3 changed files with 36 additions and 1 deletions
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12
accel/kvm/kvm-all.c
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@ -168,6 +168,8 @@ 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 +2566,16 @@ 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;
}
kvm_state = s;
ret = kvm_arch_init(ms, s);