Re: [Qemu-devel] [Question] Qemu Register Mapping Directly in AARCH64

2014-06-09 Thread Peter Maydell
On 9 June 2014 06:59, Chaos Shu wrote: > I’ve noticed that Qemu maintained the target arch register in memory for > capacity, but the load/store really cost a bit much, is there any way map > the register directly. Our JIT's register allocator will avoid storing the guest register value back to R

[Qemu-devel] [Question] Qemu Register Mapping Directly in AARCH64

2014-06-08 Thread Chaos Shu
Hi all I've noticed that Qemu maintained the target arch register in memory for capacity, but the load/store really cost a bit much, is there any way map the register directly. For example, in x86 to aarch64, x86 uses 8 registers mostly such eax ebx ecx and so on, and aarch64 arch got 31 ge