eb2edc42b1
Guests can now be debugged through the gdbstub. Support is added for single-stepping, software breakpoints, hardware breakpoints and watchpoints. The code has been structured like the KVM counterpart. While guest debugging is enabled, the guest can still read and write the DBG*_EL1 registers but they don't have any effect. Signed-off-by: Francesco Cagnin <fcagnin@quarkslab.com> Message-id: 20230601153107.81955-5-fcagnin@quarkslab.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* QEMU Hypervisor.framework support
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "qemu/error-report.h"
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#include "sysemu/hvf.h"
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#include "sysemu/hvf_int.h"
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void assert_hvf_ok(hv_return_t ret)
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{
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if (ret == HV_SUCCESS) {
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return;
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}
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switch (ret) {
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case HV_ERROR:
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error_report("Error: HV_ERROR");
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break;
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case HV_BUSY:
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error_report("Error: HV_BUSY");
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break;
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case HV_BAD_ARGUMENT:
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error_report("Error: HV_BAD_ARGUMENT");
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break;
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case HV_NO_RESOURCES:
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error_report("Error: HV_NO_RESOURCES");
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break;
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case HV_NO_DEVICE:
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error_report("Error: HV_NO_DEVICE");
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break;
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case HV_UNSUPPORTED:
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error_report("Error: HV_UNSUPPORTED");
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break;
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default:
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error_report("Unknown Error");
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}
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abort();
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}
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struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu, target_ulong pc)
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{
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struct hvf_sw_breakpoint *bp;
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QTAILQ_FOREACH(bp, &hvf_state->hvf_sw_breakpoints, entry) {
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if (bp->pc == pc) {
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return bp;
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}
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}
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return NULL;
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}
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int hvf_sw_breakpoints_active(CPUState *cpu)
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{
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return !QTAILQ_EMPTY(&hvf_state->hvf_sw_breakpoints);
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}
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int hvf_update_guest_debug(CPUState *cpu)
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{
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hvf_arch_update_guest_debug(cpu);
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return 0;
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}
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