define_callback_attributes!(
"Called before translation of each basic block.
Callback ID: PANDA_CB_BEFORE_BLOCK_TRANSLATE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC we are about to translate
Helper call location: cpu-exec.c
Return value:
none
"
(before_block_translate, panda_cb_type_PANDA_CB_BEFORE_BLOCK_TRANSLATE, (cpu: &mut CPUState, pc: target_ptr_t)),
"Called after execution of every basic block.
If exitCode > TB_EXIT_IDX1, then the block exited early.
Callback ID: PANDA_CB_AFTER_BLOCK_EXEC
after_block_exec:
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we just executed
uint8_t exitCode: why the block execution exited
Helper call location: cpu-exec.c
Return value:
none
"
(after_block_translate, panda_cb_type_PANDA_CB_AFTER_BLOCK_TRANSLATE, (cpu: &mut CPUState, tb: &mut TranslationBlock)),
"Called before execution of every basic block, with the option
to invalidate the TB.
Callback ID: PANDA_CB_BEFORE_BLOCK_EXEC_INVALIDATE_OPT
before_block_exec_invalidate_opt:
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we are about to execute
Helper call location: cpu-exec.c (indirectly)
Return value:
true if we should invalidate the current translation block
and retranslate, false otherwise.
"
(before_block_exec_invalidate_opt, panda_cb_type_PANDA_CB_BEFORE_BLOCK_EXEC_INVALIDATE_OPT, (cpu: &mut CPUState, tb: &mut TranslationBlock) -> bool),
"Called before execution of every basic block.
Callback ID: PANDA_CB_BEFORE_BLOCK_EXEC
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we are about to execute
Helper call location: cpu-exec.c
Return value:
none
"
(before_block_exec, panda_cb_type_PANDA_CB_BEFORE_BLOCK_EXEC, (cpu: &mut CPUState, tb: &mut TranslationBlock)),
"Called after execution of every basic block.
If exitCode > TB_EXIT_IDX1, then the block exited early.
Callback ID: PANDA_CB_AFTER_BLOCK_EXEC
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we just executed
uint8_t exitCode: why the block execution exited
Helper call location: cpu-exec.c
Return value:
none
"
(after_block_exec, panda_cb_type_PANDA_CB_AFTER_BLOCK_EXEC, (cpu: &mut CPUState, tb: &mut TranslationBlock, exit_code: u8)),
"Called before the translation of each instruction.
Callback ID: PANDA_CB_INSN_TRANSLATE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC we are about to translate
Helper call location: panda/target/ARCH/translate.c
Return value:
true if PANDA should insert instrumentation into the generated code,
false otherwise
Notes:
This allows a plugin writer to instrument only a small number of
instructions, avoiding the performance hit of instrumenting everything.
If you do want to instrument every single instruction, just return
true. See the documentation for PANDA_CB_INSN_EXEC for more detail.
"
(insn_translate, panda_cb_type_PANDA_CB_INSN_TRANSLATE, (cpu: &mut CPUState, pc: target_ptr_t) -> bool),
"Called before execution of any instruction identified by the
PANDA_CB_INSN_TRANSLATE callback.
Callback ID: PANDA_CB_INSN_EXEC
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC we are about to execute
Helper call location: TBA
Return value:
unused
Notes:
This instrumentation is implemented by generating a call to a
helper function just before the instruction itself is generated.
This is fairly expensive, which is why it's only enabled via
the PANDA_CB_INSN_TRANSLATE callback.
"
(insn_exec, panda_cb_type_PANDA_CB_INSN_EXEC, (cpu: &mut CPUState, pc: target_ptr_t)),
"Called after the translation of each instruction.
Callback ID: PANDA_CB_AFTER_INSN_TRANSLATE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the next guest PC we've translated
Helper call location: panda/target/ARCH/translate.c
Return value:
true if PANDA should insert instrumentation into the generated code,
false otherwise
Notes:
See `insn_translate`, callbacks are registered via PANDA_CB_AFTER_INSN_EXEC
"
(after_insn_translate, panda_cb_type_PANDA_CB_AFTER_INSN_TRANSLATE, (cpu: &mut CPUState, pc: target_ptr_t) -> bool),
"Called after execution of an instruction identified by the
PANDA_CB_AFTER_INSN_TRANSLATE callback
Callback ID: PANDA_CB_AFTER_INSN_EXEC
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the next guest PC already executed
Helper call location: TBA
Return value:
unused
Notes:
See `insn_exec`. Enabled via the PANDA_CB_AFTER_INSN_TRANSLATE callback.
"
(after_insn_exec, panda_cb_type_PANDA_CB_AFTER_INSN_EXEC, (cpu: &mut CPUState, pc: target_ptr_t)),
"Called before memory is read.
Callback ID: PANDA_CB_VIRT_MEM_BEFORE_READ
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the read
target_ptr_t addr: the (virtual) address being read
size_t size: the size of the read
Helper call location: TBA
Return value:
none
"
(virt_mem_before_read, panda_cb_type_PANDA_CB_VIRT_MEM_BEFORE_READ, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize)),
"Called before memory is written.
Callback ID: PANDA_CB_VIRT_MEM_BEFORE_WRITE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the write
target_ptr_t addr: the (virtual) address being written
size_t size: the size of the write
uint8_t *buf: pointer to the data that is to be written
Helper call location: TBA
Return value:
none
"
(virt_mem_before_write, panda_cb_type_PANDA_CB_VIRT_MEM_BEFORE_WRITE, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after memory is read.
Callback ID: PANDA_CB_PHYS_MEM_BEFORE_READ
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the read
target_ptr_t addr: the (physical) address being read
size_t size: the size of the read
Helper call location: TBA
Return value:
none
"
(phys_mem_before_read, panda_cb_type_PANDA_CB_PHYS_MEM_BEFORE_READ, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize)),
"Called before memory is written.
Callback ID: PANDA_CB_PHYS_MEM_BEFORE_WRITE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the write
target_ptr_t addr: the (physical) address being written
size_t size: the size of the write
uint8_t *buf: pointer to the data that is to be written
Helper call location: TBA
Return value:
none
"
(phys_mem_before_write, panda_cb_type_PANDA_CB_PHYS_MEM_BEFORE_WRITE, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after memory is read.
Callback ID: PANDA_CB_VIRT_MEM_AFTER_READ
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the read
target_ptr_t addr: the (virtual) address being read
size_t size: the size of the read
uint8_t *buf: pointer to data just read
Helper call location: TBA
Return value:
none
"
(virt_mem_after_read, panda_cb_type_PANDA_CB_VIRT_MEM_AFTER_READ, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after memory is written.
Callback ID: PANDA_CB_VIRT_MEM_AFTER_WRITE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the write
target_ptr_t addr: the (virtual) address being written
size_t size: the size of the write
uint8_t *buf: pointer to the data that was written
Helper call location: TBA
Return value:
none
"
(virt_mem_after_write, panda_cb_type_PANDA_CB_VIRT_MEM_AFTER_WRITE, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after memory is read.
Callback ID: PANDA_CB_PHYS_MEM_AFTER_READ
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the read
target_ptr_t addr: the (physical) address being read
size_t size: the size of the read
uint8_t *buf: pointer to data just read
Helper call location: TBA
Return value:
none
"
(phys_mem_after_read, panda_cb_type_PANDA_CB_PHYS_MEM_AFTER_READ, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after memory is written.
Callback ID: PANDA_CB_PHYS_MEM_AFTER_WRITE
Arguments:
CPUState *env: the current CPU state
target_ptr_t pc: the guest PC doing the write
target_ptr_t addr: the (physical) address being written
size_t size: the size of the write
uint8_t *buf: pointer to the data that was written
Helper call location: TBA
Return value:
none
"
(phys_mem_after_write, panda_cb_type_PANDA_CB_PHYS_MEM_AFTER_WRITE, (cpu: &mut CPUState, pc: target_ptr_t, addr: target_ptr_t, size: usize, buf: *mut u8)),
"Called after MMIO memory is read.
Callback ID: PANDA_CB_MMIO_AFTER_READ
Arguments:
CPUState *env: the current CPU state
target_ptr_t physaddr: the physical address being read from
target_ptr_t vaddr: the virtual address being read from
size_t size: the size of the read
uin64_t *val: the value being read
Helper call location: cputlb.c
Return value:
none
"
(mmio_after_read, panda_cb_type_PANDA_CB_MMIO_AFTER_READ, (cpu: &mut CPUState, phys_addr: target_ptr_t, virt_addr: target_ptr_t, size: usize, value: *mut u64)),
"Called after MMIO memory is written to.
Callback ID: PANDA_CB_MMIO_BEFORE_WRITE
Arguments:
CPUState *env: the current CPU state
target_ptr_t physaddr: the physical address being written to
target_ptr_t vaddr: the virtual address being written to
size_t size: the size of the write
uin64_t *val: the value being written
Helper call location: cputlb.c
Return value:
none
"
(mmio_before_write, panda_cb_type_PANDA_CB_MMIO_BEFORE_WRITE, (cpu: &mut CPUState, phys_addr: target_ptr_t, virt_addr: target_ptr_t, size: usize, value: *mut u64)),
"Called when there is a hard drive read
Callback ID: PANDA_CB_HD_READ
Note: this was added to panda_cb_type enum but no callback prototype inserted
Here is a stub. I'm not sure what the args should be.
Arguments
CPUState *env
"
(hd_read, panda_cb_type_PANDA_CB_HD_READ, (cpu: &mut CPUState)),
"Called when there is a hard drive write
Callback ID: PANDA_CB_HD_WRITE
Note: this was added to panda_cb_type enum but no callback prototype inserted
Here is a stub. I'm not sure what the args should be.
Arguments
CPUState *env
"
(hd_write, panda_cb_type_PANDA_CB_HD_WRITE, (cpu: &mut CPUState)),
"Called when a program inside the guest makes a hypercall to pass
information from inside the guest to a plugin
Callback ID: PANDA_CB_GUEST_HYPERCALL
Arguments:
CPUState *env: the current CPU state
Helper call location: target/i386/misc_helper.c
Return value:
true if the callback has processed the hypercall, false if the
hypercall has been ignored.
Notes:
On x86, this is called whenever CPUID is executed. On ARM, the
MCR instructions is used. Plugins should check for magic values
in the registers to determine if it really is a guest hypercall.
Parameters can be passed in other registers. If the plugin
processes the hypercall, it should return true so the execution
of the normal instruction is skipped.
"
(guest_hypercall, panda_cb_type_PANDA_CB_GUEST_HYPERCALL, (cpu: &mut CPUState) -> bool),
"Called when someone uses the plugin_cmd monitor command.
Callback ID: PANDA_CB_MONITOR
Arguments:
Monitor *mon: a pointer to the Monitor
const char *cmd: the command string passed to plugin_cmd
Helper call location: TBA
Return value:
unused
Notes:
The command is passed as a single string. No parsing is performed
on the string before it is passed to the plugin, so each plugin
must parse the string as it deems appropriate (e.g. by using strtok
and getopt) to do more complex option processing.
It is recommended that each plugin implementing this callback respond
to the \"help\" message by listing the commands supported by the plugin.
Note that every loaded plugin will have the opportunity to respond to
each plugin_cmd; thus it is a good idea to ensure that your plugin's
monitor commands are uniquely named, e.g. by using the plugin name
as a prefix (\"sample_do_foo\" rather than \"do_foo\").
"
(monitor, panda_cb_type_PANDA_CB_MONITOR, (monitor: &mut Monitor, cmd: *const u8)),
"Called inside of cpu_restore_state(), when there is a CPU
fault/exception.
Callback ID: PANDA_CB_CPU_RESTORE_STATE
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the current translation block
Helper call location: translate-all.c
Return value:
none
"
(cpu_restore_state, panda_cb_type_PANDA_CB_CPU_RESTORE_STATE, (cpu: &mut CPUState, tb: &mut TranslationBlock)),
"Called at start of replay, before loadvm is called. This allows
us to hook devices' loadvm handlers. Remember to unregister the
existing handler for the device first. See the example in the
sample plugin.
Callback ID: PANDA_CB_BEFORE_LOADVM
Arguments:
none
Helper call location: TBA
Return value:
unused
"
(before_loadvm, panda_cb_type_PANDA_CB_BEFORE_LOADVM, ()),
"Called when asid changes.
Callback ID: PANDA_CB_ASID_CHANGED
Arguments:
CPUState *env: pointer to CPUState
target_ptr_t oldval: old asid value
target_ptr_t newval: new asid value
Helper call location: target/i386/helper.c, target/arm/helper.c
Return value:
true if the asid should be prevented from being changed
false otherwise
Notes:
The callback is only invoked implemented for x86 and ARM.
This should break plugins which rely on it to detect context
switches in any other architecture.
"
(asid_changed, panda_cb_type_PANDA_CB_ASID_CHANGED, (cpu: &mut CPUState, old_asid: target_ptr_t, new_asid: target_ptr_t) -> bool),
"In replay only. Some kind of data transfer involving hard drive.
Callback ID: PANDA_CB_REPLAY_HD_TRANSFER,
Arguments:
CPUState *env: pointer to CPUState
uint32_t type: type of transfer (Hd_transfer_type)
target_ptr_t src_addr: address for src
target_ptr_t dest_addr: address for dest
size_t num_bytes: size of transfer in bytes
Helper call location: panda/src/rr/rr_log.c
Return value:
none
Helper call location: TBA
Notes:
Unlike most callbacks, this is neither a \"before\" or \"after\" callback.
In replay the transfer doesn't really happen. We are *at* the point at
which it happened, really.
"
(replay_hd_transfer, panda_cb_type_PANDA_CB_REPLAY_HD_TRANSFER, (cpu: &mut CPUState, kind: u32, src: target_ptr_t, dest: target_ptr_t, num_bytes: usize)),
"In replay only, some kind of data transfer within the network card
(currently, only the E1000 is supported).
Callback ID: PANDA_CB_REPLAY_NET_TRANSFER,
Arguments:
CPUState *env: pointer to CPUState
uint32_t type: type of transfer (Net_transfer_type)
uint64_t src_addr: address for src
uint64_t dest_addr: address for dest
size_t num_bytes: size of transfer in bytes
Helper call location: panda/src/rr/rr_log.c
Return value:
none
Notes:
Unlike most callbacks, this is neither a \"before\" or \"after\" callback.
In replay the transfer doesn't really happen. We are *at* the point at
which it happened, really.
Also, the src_addr and dest_addr may be for either host (ie. a location
in the emulated network device) or guest, depending upon the type.
"
(replay_net_transfer, panda_cb_type_PANDA_CB_REPLAY_NET_TRANSFER, (cpu: &mut CPUState, kind: u32, src: u64, dest: u64, size: usize)),
"In replay only, called when a byte is received on the serial port.
Callback ID: PANDA_CB_REPLAY_SERIAL_RECEIVE,
Arguments:
CPUState *env: pointer to CPUState
target_ptr_t fifo_addr: address of the data within the fifo
uint8_t value: value received
Helper call location: panda/src/rr/rr_log.c
Return value:
unused
"
(replay_serial_receive, panda_cb_type_PANDA_CB_REPLAY_SERIAL_RECEIVE, (cpu: &mut CPUState, fifo_addr: target_ptr_t, value: u8)),
"In replay only, called when a byte read from the serial RX FIFO
Callback ID: PANDA_CB_REPLAY_SERIAL_READ,
Arguments:
CPUState *env: pointer to CPUState
target_ptr_t fifo_addr: address of the data within the fifo (source)
uint32_t port_addr: address of the IO port where data is being read (destination)
uint8_t value: value read
Helper call location: panda/src/rr/rr_log.c
Return value:
none
"
(replay_serial_read, panda_cb_type_PANDA_CB_REPLAY_SERIAL_READ, (cpu: &mut CPUState, fifo_addr: target_ptr_t, port_addr: u32, value: u8)),
"In replay only, called when a byte is sent on the serial port.
Callback ID: PANDA_CB_REPLAY_SERIAL_SEND,
Arguments:
CPUState *env: pointer to CPUState
target_ptr_t fifo_addr: address of the data within the fifo
uint8_t value: value received
Helper call location: panda/src/rr/rr_log.c
Return value:
none
"
(replay_serial_send, panda_cb_type_PANDA_CB_REPLAY_SERIAL_SEND, (cpu: &mut CPUState, fifo_addr: target_ptr_t, value: u8)),
"In replay only, called when a byte written to the serial TX FIFO
Callback ID: PANDA_CB_REPLAY_SERIAL_WRITE,
Arguments:
CPUState *env: pointer to CPUState
target_ptr_t fifo_addr: address of the data within the fifo (source)
uint32_t port_addr: address of the IO port where data is being read (destination)
uint8_t value: value read
Helper call location: panda/src/rr/rr_log.c
Return value:
none
"
(replay_serial_write, panda_cb_type_PANDA_CB_REPLAY_SERIAL_WRITE, (cpu: &mut CPUState, fifo_addr: target_ptr_t, port_addr: u32, value: u8)),
"In replay only. We are about to dma between qemu buffer and
guest memory.
Callback ID: PANDA_CB_REPLAY_BEFORE_DMA,
Arguments:
CPUState *env: pointer to CPUState
const uint8_t *buf: pointer to the QEMU's device buffer ussed in the transfer
hwaddr addr: address written to in the guest RAM
size_t size: size of transfer
bool is_write: indicates whether the DMA transfer writes to memory
Helper call location: exec.c
Return value:
none
"
(replay_before_dma, panda_cb_type_PANDA_CB_REPLAY_BEFORE_DMA, (cpu: &mut CPUState, buf: *const u8, addr: hwaddr, size: usize, is_write: bool)),
"In replay only, we are about to dma between qemu buffer and guest memory
Callback ID: PANDA_CB_REPLAY_AFTER_DMA,
Arguments:
CPUState *env: pointer to CPUState
const uint8_t *buf: pointer to the QEMU's device buffer ussed in the transfer
hwaddr addr: address written to in the guest RAM
size_t size: size of transfer
bool is_write: indicates whether the DMA transfer writes to memory
Helper call location: exec.c
Return value:
none
"
(replay_after_dma, panda_cb_type_PANDA_CB_REPLAY_AFTER_DMA, (cpu: &mut CPUState, buf: *mut u8, addr: hwaddr, size: usize, is_write: bool)),
"In replay only, we have a packet (incoming / outgoing) in hand.
Callback ID: PANDA_CB_REPLAY_HANDLE_PACKET,
Arguments:
CPUState *env: pointer to CPUState
uint8_t *buf: buffer containing packet data
size_t size: num bytes in buffer
uint8_t direction: either `PANDA_NET_RX` or `PANDA_NET_TX`
uint64_t buf_addr_rec: the address of `buf` at the time of recording
Helper call location: panda/src/rr/rr_log.c
Return value:
none
Notes:
`buf_addr_rec` corresponds to the address of the device buffer of
the emulated NIC. I.e. it is the address of a VM-host-side buffer.
It is useful for implementing network tainting in an OS-agnostic
way, in conjunction with taint2_label_io().
FIXME: The `buf_addr_rec` maps to the `uint8_t *buf` field of the
internal `RR_handle_packet_args` struct. The field is dumped/loaded
to/from the trace without proper serialization/deserialization. As
a result, a 64bit build of PANDA will not be able to process traces
produced by a 32bit of PANDA, and vice-versa.
There are more internal structs that suffer from the same issue.
This is an oversight that will eventually be fixed. But as the
real impact is minimal (virtually nobody uses 32bit builds),
the fix has a very low priority in the bugfix list.
"
(replay_handle_packet, panda_cb_type_PANDA_CB_REPLAY_HANDLE_PACKET, (cpu: &mut CPUState, buf: *mut u8, size: usize, direction: u8, buf_addr_rc: u64)),
"Called after cpu_exec calls cpu_exec_enter function.
Callback ID: PANDA_CB_AFTER_CPU_EXEC_ENTER
Arguments:
CPUState *env: the current CPU state
Helper call location: cpu-exec.c
Return value:
none
"
(after_cpu_exec_enter, panda_cb_type_PANDA_CB_AFTER_CPU_EXEC_ENTER, (cpu: &mut CPUState)),
"Called before cpu_exec calls cpu_exec_exit function.
Callback ID: PANDA_CB_BEFORE_CPU_EXEC_EXIT
Arguments:
CPUState *env: the current CPU state
bool ranBlock: true if ran a block since previous cpu_exec_enter
Helper call location: cpu-exec.c
Return value:
none
"
(before_cpu_exec_exit, panda_cb_type_PANDA_CB_BEFORE_CPU_EXEC_EXIT, (cpu: &mut CPUState, ran_block: bool)),
"Called right after the machine has been initialized, but before
any guest code runs.
Callback ID: PANDA_CB_AFTER_MACHINE_INIT
Arguments:
void *cpu_env: pointer to CPUState
Helper call location: TBA
Return value:
none
Notes:
This callback allows initialization of components that need
access to the RAM, CPU object, etc. E.g. for the taint2 plugin,
this is the appropriate place to call taint2_enable_taint().
"
(after_machine_init, panda_cb_type_PANDA_CB_AFTER_MACHINE_INIT, (cpu: &mut CPUState)),
"Called right after a snapshot has been loaded (either with loadvm or replay initialization),
but before any guest code runs.
Callback ID: PANDA_CB_AFTER_LOADVM
Arguments:
void *cpu_env: pointer to CPUState
Return value:
none
"
(after_loadvm, panda_cb_type_PANDA_CB_AFTER_LOADVM, (cpu: &mut CPUState)),
"Called at the top of the loop that manages emulation.
Callback ID: PANDA_CB_TOP_LOOP
Arguments:
CPUState *env: pointer to CPUState
Helper call location: cpus.c
Return value:
unused
"
(top_loop, panda_cb_type_PANDA_CB_TOP_LOOP, (cpu: &mut CPUState)),
"Called in the middle of machine initialization
Callback ID: PANDA_CB_DURING_MACHINE_INIT
Arguments:
MachineState *machine: pointer to the machine state
Return value:
None
"
(during_machine_init, panda_cb_type_PANDA_CB_DURING_MACHINE_INIT, (machine: &mut MachineState)),
"Called in IO thread in place where monitor cmds are processed
Callback ID: PANDA_CB_MAIN_LOOP_WAIT
Arguments:
None
Return value:
None
"
(main_loop_wait, panda_cb_type_PANDA_CB_MAIN_LOOP_WAIT, ()),
"Called just before qemu shuts down
Callback ID: PANDA_CB_PRE_SHUTDOWN
Arguments:
None
Return value:
None
"
(pre_shutdown, panda_cb_type_PANDA_CB_PRE_SHUTDOWN, ()),
"Called when the guest attempts to read from an unmapped peripheral via MMIO
Callback ID: PANDA_CB_UNASSIGNED_IO_WRITE
Arguments:
pc: Guest program counter at time of write
addr: Physical address written to
size: Size of write
val: Pointer to a buffer that will be passed to the guest as the result of the read
Return value:
True if value read was changed by a PANDA plugin and should be returned
False if error-logic (invalid write) should be run
"
(unassigned_io_read, panda_cb_type_PANDA_CB_UNASSIGNED_IO_READ, (cpu: &mut CPUState, pc: target_ptr_t, addr: hwaddr, size: usize, val: u64) -> bool),
"Called when the guest attempts to write to an unmapped peripheral via MMIO
Callback ID: PANDA_CB_UNASSIGNED_IO_WRITE
Arguments:
pc: Guest program counter at time of write
addr: Physical address written to
size: Size of write
val: Data being written, up to 8 bytes
Return value:
True if the write should be allowed without error
False if normal behavior should be used (error-logic)
"
(unassigned_io_write, panda_cb_type_PANDA_CB_UNASSIGNED_IO_WRITE, (cpu: &mut CPUState, pc: target_ptr_t, addr: hwaddr, size: usize, val: u64) -> bool),
"Called just before we are about to handle an exception.
Callback ID: PANDA_CB_BEFORE_HANDLE_EXCEPTION
Note: only called for cpu->exception_index > 0
Aguments:
exception_index (the current exception number)
Return value:
a new exception_index.
Note: There might be more than one callback for this location.
First callback that returns an exception index that *differs*
from the one passed as an arg wins. That is what we return as
the new exception index, which will replace
cpu->exception_index
"
(before_handle_exception, panda_cb_type_PANDA_CB_BEFORE_HANDLE_EXCEPTION, (cpu: &mut CPUState, exception_index: i32) -> i32),
(before_handle_interrupt, panda_cb_type_PANDA_CB_BEFORE_HANDLE_INTERRUPT, (cpu: &mut CPUState, exception_index: i32) -> i32),
" Callback ID: PANDA_CB_START_BLOCK_EXEC
start_block_exec:
This is like before_block_exec except its part of the TCG stream.
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we are executing
Helper call location: cpu-exec.c
Return value:
none
"
(start_block_exec, panda_cb_type_PANDA_CB_START_BLOCK_EXEC,(cpu: &mut CPUState, tb: &mut TranslationBlock)),
"Callback ID: PANDA_CB_END_BLOCK_EXEC
end_block_exec:
This is like after_block_exec except its part of the TCG stream.
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB we are executing
Helper call location: cpu-exec.c
Return value:
none
"
(end_block_exec, panda_cb_type_PANDA_CB_END_BLOCK_EXEC,(cpu: &mut CPUState, tb: &mut TranslationBlock)),
"Callback ID: PANDA_CB_BEFORE_TCG_CODEGEN
before_tcg_codegen:
Called before host code generation for every basic block. Enables
inspection and modification of the TCG block after lifting from guest
code.
Arguments:
CPUState *env: the current CPU state
TranslationBlock *tb: the TB about to be compiled
Helper call location: translate-all.c
Return value:
None
"
(before_tcg_codegen, panda_cb_type_PANDA_CB_BEFORE_TCG_CODEGEN, (cpu: &mut CPUState, tb: &mut TranslationBlock))
);