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>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
/*
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* QEMU Hypervisor.framework (HVF) support
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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/* header to be included in HVF-specific code */
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#ifndef HVF_INT_H
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#define HVF_INT_H
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#ifdef __aarch64__
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#include <Hypervisor/Hypervisor.h>
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#else
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#include <Hypervisor/hv.h>
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#endif
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/* hvf_slot flags */
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#define HVF_SLOT_LOG (1 << 0)
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typedef struct hvf_slot {
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uint64_t start;
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uint64_t size;
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uint8_t *mem;
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int slot_id;
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uint32_t flags;
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MemoryRegion *region;
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} hvf_slot;
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typedef struct hvf_vcpu_caps {
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uint64_t vmx_cap_pinbased;
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uint64_t vmx_cap_procbased;
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uint64_t vmx_cap_procbased2;
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uint64_t vmx_cap_entry;
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uint64_t vmx_cap_exit;
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uint64_t vmx_cap_preemption_timer;
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} hvf_vcpu_caps;
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struct HVFState {
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AccelState parent;
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hvf_slot slots[32];
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int num_slots;
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hvf_vcpu_caps *hvf_caps;
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uint64_t vtimer_offset;
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QTAILQ_HEAD(, hvf_sw_breakpoint) hvf_sw_breakpoints;
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};
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extern HVFState *hvf_state;
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struct hvf_vcpu_state {
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uint64_t fd;
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void *exit;
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bool vtimer_masked;
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sigset_t unblock_ipi_mask;
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bool guest_debug_enabled;
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};
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void assert_hvf_ok(hv_return_t ret);
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int hvf_arch_init(void);
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int hvf_arch_init_vcpu(CPUState *cpu);
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void hvf_arch_vcpu_destroy(CPUState *cpu);
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int hvf_vcpu_exec(CPUState *);
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hvf_slot *hvf_find_overlap_slot(uint64_t, uint64_t);
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int hvf_put_registers(CPUState *);
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int hvf_get_registers(CPUState *);
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void hvf_kick_vcpu_thread(CPUState *cpu);
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#endif
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