From 12bc5b4cd5e59b3f8689b71d9d038a55e2777cdc Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 11 Nov 2021 12:06:03 +0100 Subject: gdbstub, kvm: let KVM report supported singlestep flags MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Maxim Levitsky [Extracted from Maxim's patch into a separate commit. - Paolo] Signed-off-by: Paolo Bonzini Reviewed-by: Alex Bennée Message-Id: <20211111110604.207376-5-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini --- accel/kvm/kvm-all.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'accel/kvm/kvm-all.c') diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index eecd8031cf..2f5597572a 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -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); -- cgit v1.2.3