d7482ffe97
Below is the updated version of the patch adding debugging support to WHPX. It incorporates feedback from Alex Bennée and Peter Maydell regarding not changing the emulation logic depending on the gdb connection status. Instead of checking for an active gdb connection to determine whether QEMU should intercept the INT1 exceptions, it now checks whether any breakpoints have been set, or whether gdb has explicitly requested one or more CPUs to do single-stepping. Having none of these condition present now has the same effect as not using gdb at all. Message-Id: <0e7f01d82e9e$00e9c360$02bd4a20$@sysprogs.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
117 lines
5.4 KiB
C
117 lines
5.4 KiB
C
#ifndef WHP_INTERNAL_H
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#define WHP_INTERNAL_H
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#include <windows.h>
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#include <WinHvPlatform.h>
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#include <WinHvEmulation.h>
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typedef enum WhpxBreakpointState {
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WHPX_BP_CLEARED = 0,
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WHPX_BP_SET_PENDING,
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WHPX_BP_SET,
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WHPX_BP_CLEAR_PENDING,
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} WhpxBreakpointState;
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struct whpx_breakpoint {
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vaddr address;
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WhpxBreakpointState state;
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uint8_t original_instruction;
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};
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struct whpx_breakpoint_collection {
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int allocated, used;
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struct whpx_breakpoint data[0];
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};
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struct whpx_breakpoints {
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int original_address_count;
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vaddr *original_addresses;
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struct whpx_breakpoint_collection *breakpoints;
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};
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struct whpx_state {
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uint64_t mem_quota;
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WHV_PARTITION_HANDLE partition;
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uint64_t exception_exit_bitmap;
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int32_t running_cpus;
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struct whpx_breakpoints breakpoints;
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bool step_pending;
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bool kernel_irqchip_allowed;
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bool kernel_irqchip_required;
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bool apic_in_platform;
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};
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extern struct whpx_state whpx_global;
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void whpx_apic_get(DeviceState *s);
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#define WHV_E_UNKNOWN_CAPABILITY 0x80370300L
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#define LIST_WINHVPLATFORM_FUNCTIONS(X) \
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X(HRESULT, WHvGetCapability, (WHV_CAPABILITY_CODE CapabilityCode, VOID* CapabilityBuffer, UINT32 CapabilityBufferSizeInBytes, UINT32* WrittenSizeInBytes)) \
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X(HRESULT, WHvCreatePartition, (WHV_PARTITION_HANDLE* Partition)) \
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X(HRESULT, WHvSetupPartition, (WHV_PARTITION_HANDLE Partition)) \
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X(HRESULT, WHvDeletePartition, (WHV_PARTITION_HANDLE Partition)) \
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X(HRESULT, WHvGetPartitionProperty, (WHV_PARTITION_HANDLE Partition, WHV_PARTITION_PROPERTY_CODE PropertyCode, VOID* PropertyBuffer, UINT32 PropertyBufferSizeInBytes, UINT32* WrittenSizeInBytes)) \
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X(HRESULT, WHvSetPartitionProperty, (WHV_PARTITION_HANDLE Partition, WHV_PARTITION_PROPERTY_CODE PropertyCode, const VOID* PropertyBuffer, UINT32 PropertyBufferSizeInBytes)) \
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X(HRESULT, WHvMapGpaRange, (WHV_PARTITION_HANDLE Partition, VOID* SourceAddress, WHV_GUEST_PHYSICAL_ADDRESS GuestAddress, UINT64 SizeInBytes, WHV_MAP_GPA_RANGE_FLAGS Flags)) \
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X(HRESULT, WHvUnmapGpaRange, (WHV_PARTITION_HANDLE Partition, WHV_GUEST_PHYSICAL_ADDRESS GuestAddress, UINT64 SizeInBytes)) \
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X(HRESULT, WHvTranslateGva, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, WHV_GUEST_VIRTUAL_ADDRESS Gva, WHV_TRANSLATE_GVA_FLAGS TranslateFlags, WHV_TRANSLATE_GVA_RESULT* TranslationResult, WHV_GUEST_PHYSICAL_ADDRESS* Gpa)) \
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X(HRESULT, WHvCreateVirtualProcessor, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, UINT32 Flags)) \
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X(HRESULT, WHvDeleteVirtualProcessor, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex)) \
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X(HRESULT, WHvRunVirtualProcessor, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, VOID* ExitContext, UINT32 ExitContextSizeInBytes)) \
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X(HRESULT, WHvCancelRunVirtualProcessor, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, UINT32 Flags)) \
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X(HRESULT, WHvGetVirtualProcessorRegisters, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, const WHV_REGISTER_NAME* RegisterNames, UINT32 RegisterCount, WHV_REGISTER_VALUE* RegisterValues)) \
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X(HRESULT, WHvSetVirtualProcessorRegisters, (WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, const WHV_REGISTER_NAME* RegisterNames, UINT32 RegisterCount, const WHV_REGISTER_VALUE* RegisterValues)) \
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/*
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* These are supplemental functions that may not be present
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* on all versions and are not critical for basic functionality.
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*/
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#define LIST_WINHVPLATFORM_FUNCTIONS_SUPPLEMENTAL(X) \
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X(HRESULT, WHvSuspendPartitionTime, (WHV_PARTITION_HANDLE Partition)) \
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X(HRESULT, WHvRequestInterrupt, (WHV_PARTITION_HANDLE Partition, \
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WHV_INTERRUPT_CONTROL* Interrupt, UINT32 InterruptControlSize)) \
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X(HRESULT, WHvGetVirtualProcessorInterruptControllerState2, \
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(WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, PVOID State, \
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UINT32 StateSize, UINT32* WrittenSize)) \
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X(HRESULT, WHvSetVirtualProcessorInterruptControllerState2, \
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(WHV_PARTITION_HANDLE Partition, UINT32 VpIndex, PVOID State, \
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UINT32 StateSize)) \
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#define LIST_WINHVEMULATION_FUNCTIONS(X) \
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X(HRESULT, WHvEmulatorCreateEmulator, (const WHV_EMULATOR_CALLBACKS* Callbacks, WHV_EMULATOR_HANDLE* Emulator)) \
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X(HRESULT, WHvEmulatorDestroyEmulator, (WHV_EMULATOR_HANDLE Emulator)) \
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X(HRESULT, WHvEmulatorTryIoEmulation, (WHV_EMULATOR_HANDLE Emulator, VOID* Context, const WHV_VP_EXIT_CONTEXT* VpContext, const WHV_X64_IO_PORT_ACCESS_CONTEXT* IoInstructionContext, WHV_EMULATOR_STATUS* EmulatorReturnStatus)) \
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X(HRESULT, WHvEmulatorTryMmioEmulation, (WHV_EMULATOR_HANDLE Emulator, VOID* Context, const WHV_VP_EXIT_CONTEXT* VpContext, const WHV_MEMORY_ACCESS_CONTEXT* MmioInstructionContext, WHV_EMULATOR_STATUS* EmulatorReturnStatus)) \
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#define WHP_DEFINE_TYPE(return_type, function_name, signature) \
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typedef return_type (WINAPI *function_name ## _t) signature;
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#define WHP_DECLARE_MEMBER(return_type, function_name, signature) \
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function_name ## _t function_name;
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/* Define function typedef */
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LIST_WINHVPLATFORM_FUNCTIONS(WHP_DEFINE_TYPE)
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LIST_WINHVEMULATION_FUNCTIONS(WHP_DEFINE_TYPE)
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LIST_WINHVPLATFORM_FUNCTIONS_SUPPLEMENTAL(WHP_DEFINE_TYPE)
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struct WHPDispatch {
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LIST_WINHVPLATFORM_FUNCTIONS(WHP_DECLARE_MEMBER)
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LIST_WINHVEMULATION_FUNCTIONS(WHP_DECLARE_MEMBER)
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LIST_WINHVPLATFORM_FUNCTIONS_SUPPLEMENTAL(WHP_DECLARE_MEMBER)
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};
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extern struct WHPDispatch whp_dispatch;
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bool init_whp_dispatch(void);
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typedef enum WHPFunctionList {
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WINHV_PLATFORM_FNS_DEFAULT,
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WINHV_EMULATION_FNS_DEFAULT,
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WINHV_PLATFORM_FNS_SUPPLEMENTAL
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} WHPFunctionList;
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#endif /* WHP_INTERNAL_H */
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