RE: Instruction virtual address in TCG Plugins

2023-11-22 Thread Mikhail Tyutin
> > 1. Memory IO operations force TCG to create special translation blocks to > > process that memory load/store operation. The plugin gets notification for > > this translation block as well, but instrumentation callbacks other than > > memory ones are silently ignored. To make it correct, the plu

Re: Instruction virtual address in TCG Plugins

2023-11-21 Thread Alex Bennée
Mikhail Tyutin writes: >> >> > I suspect it is because of memory mappings by guest OS that changes >> >> > virtual addresses for that block. >> >> > >> >> > I also looked at gen_empty_udata_cb() function and considered to extend >> >> > plugin API to pass a program counter >> >> > value as addi

RE: Instruction virtual address in TCG Plugins

2023-11-21 Thread Mikhail Tyutin
> >> > I suspect it is because of memory mappings by guest OS that changes > >> > virtual addresses for that block. > >> > > >> > I also looked at gen_empty_udata_cb() function and considered to extend > >> > plugin API to pass a program counter > >> > value as additional callback argument. I tho

Re: Instruction virtual address in TCG Plugins

2023-11-14 Thread Alex Bennée
Mikhail Tyutin writes: >> > What is the right way to get virtual address of either translation block >> > or instruction inside of TCG plugin? Does >> > plugin API allow that or it needs some extension? >> > >> > So far I use qemu_plugin_tb_vaddr() inside of my block translation >> > callback t

RE: Instruction virtual address in TCG Plugins

2023-11-14 Thread Mikhail Tyutin
> > What is the right way to get virtual address of either translation block or > > instruction inside of TCG plugin? Does > > plugin API allow that or it needs some extension? > > > > So far I use qemu_plugin_tb_vaddr() inside of my block translation callback > > to get block virtual address and

Re: Instruction virtual address in TCG Plugins

2023-11-13 Thread Alex Bennée
Mikhail Tyutin writes: > Greetings, > > What is the right way to get virtual address of either translation block or > instruction inside of TCG plugin? Does > plugin API allow that or it needs some extension? > > So far I use qemu_plugin_tb_vaddr() inside of my block translation callback > to g

Instruction virtual address in TCG Plugins

2023-11-13 Thread Mikhail Tyutin
Greetings, What is the right way to get virtual address of either translation block or instruction inside of TCG plugin? Does plugin API allow that or it needs some extension? So far I use qemu_plugin_tb_vaddr() inside of my block translation callback to get block virtual address and then pass