From: Francesco Cagnin <fcag...@quarkslab.com> This patch series aims to add gdbstub support to HVF (the 'QEMU accelerator on macOS that employs Hypervisor.framework') on Apple Silicon hosts.
The proposed implementation, structured like the KVM counterpart, handles single-stepping, software breakpoints, hardware breakpoints and hardware watchpoints. The patch has been most recently tested working on macOS Ventura 13.0 hosts and Linux kernel 5.19 guests with the test script 'tests/guest-debug/test-gdbstub.py' (slightly updated to make it work with Linux kernels compiled on macOS). If deemed useful, I can also submit an analogous patch targeting Intel hosts. v2: * Move debug helpers to 'target/arm/hyp_gdbstub.c' * Add support for SSTEP_NOIRQ and multi-core (thanks Mads Ynddal) * Move calls to 'hv_vcpu_set_trap_debug_exceptions()' to 'hvf_arch_update_guest_debug()' * Use 'arm_num_brps()' and 'arm_num_wrps()' to compute the number of breakpoints and watchpoints available (thanks Peter Maydell) Francesco Cagnin (3): arm: move KVM breakpoints helpers hvf: implement guest debugging on Apple Silicon hosts hvf: handle writes of MDSCR_EL1 and DBG*_EL1 accel/hvf/hvf-accel-ops.c | 123 ++++++++++++++ accel/hvf/hvf-all.c | 24 +++ cpu.c | 3 + include/sysemu/hvf.h | 29 ++++ include/sysemu/hvf_int.h | 1 + target/arm/hvf/hvf.c | 334 +++++++++++++++++++++++++++++++++++++- target/arm/hyp_gdbstub.c | 242 +++++++++++++++++++++++++++ target/arm/internals.h | 50 ++++++ target/arm/kvm64.c | 276 ------------------------------- target/arm/meson.build | 3 +- 10 files changed, 806 insertions(+), 279 deletions(-) create mode 100644 target/arm/hyp_gdbstub.c -- 2.38.1
