| commit | c6986f16a7022ccfb73d91bc7676c8e1d15e5342 | |
| author | Paolo Bonzini <pbonzini@redhat.com> | |
| Mon, 1 Mar 2021 11:02:44 +0000 (1 12:02 +0100) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Sat, 6 Mar 2021 10:41:54 +0000 (6 11:41 +0100) | ||
| tree | 315d164b674c90d94ceaaf55b7753a91e37a667d | treesnapshot (tar.gz zip) |
| parent | e586edcb410543768ef009eaa22a2d9dd4a53846 | commitdiff |
KVM: x86: do not fail if software breakpoint has already been removed
If kvm_arch_remove_sw_breakpoint finds that a software breakpoint does not
have an INT3 instruction, it fails. This can happen if one sets a
software breakpoint in a kernel module and then reloads it. gdb then
thinks the breakpoint cannot be deleted and there is no way to add it
back.
Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If kvm_arch_remove_sw_breakpoint finds that a software breakpoint does not
have an INT3 instruction, it fails. This can happen if one sets a
software breakpoint in a kernel module and then reloads it. gdb then
thinks the breakpoint cannot be deleted and there is no way to add it
back.
Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| target/i386/kvm/kvm.c | diffblobblamehistory |