[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

You can't for an M-profile CPU. It would work without any further coding beyond getting the ID register values right if we had a Cortex-M7 model, though. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU.

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

How do I activate it since --cpu cortex-m7 isn't supported? -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1721275 Title: Support more ARM CPUs Status in QEMU: Won't Fix Bug description: Hi,

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

Yes, QEMU supports DP (I actually had to go to some lengths to disable the DP support for the M4 :-)) -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1721275 Title: Support more ARM CPUs Status in

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

Regarding Cortex-M7, I've noticed that unlike Cortex-M4, it supports double precision floating-point. Is DP supported by qemu? -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1721275 Title: Support

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

We now support Cortex-M0 (v6M) and Cortex-M33 (v8M mainline). We don't have Cortex-M7, Cortex-M23 (v8M baseline) or Cortex-A35. In general, adding an extra CPU to QEMU really requires us to have a decent use-case for it, probably including a board model for it, especially for the M-profile CPUs.

Re: [Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

On 16 October 2017 at 14:16, Christophe Lyon wrote: > Thanks for PS, I thought QEMU was stricter than that. Well, I hope we get it right, and we'll treat cases where we get it wrong as bugs, but we're not testing... > Regarding v[68]M, are there any plans to

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

Thanks for PS, I thought QEMU was stricter than that. Regarding M7 vs M$ or A35 vs A53/A57, even though there's no functional difference, it would be convenient in Makefiles to have CPU=cortex-a53, and use $(CPU) to expand GCC and QEMU options, without having to guess which CPU I should use for

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

PS: in general I wouldn't unconditionally trust that QEMU emulating CPU X definitely does not implement any instructions that CPU X doesn't have -- no real world code will notice, and we don't have any mechanism to automatically verify that we didn't accidentally forget to conditionalize an

[Qemu-devel] [Bug 1721275] Re: Support more ARM CPUs

M0 is hard, because it's v6M which we don't support. M4 we already have (but only the no-fpu variant). M7 we don't currently have -- what would be the differences from M4? M33 is in the works (it's v8M). M23 is harder, because it's v8M-baseline which is the v8M equivalent to v6M. A53 and A57 we