Re: Status of some Arm features

2024-11-20 Thread Pierrick Bouvier
On 11/19/24 09:14, Peter Maydell wrote: On Tue, 19 Nov 2024 at 16:52, Pierrick Bouvier wrote: On 11/19/24 02:09, Peter Maydell wrote: On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier wrote: I'm currently reviewing the QEMU Arm documentation, and I have a question about the status of following

Re: Status of some Arm features

2024-11-20 Thread Pierrick Bouvier
On 11/19/24 02:54, Peter Maydell wrote: On Tue, 19 Nov 2024 at 10:09, Peter Maydell wrote: On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier wrote: 8.4: - FEAT_CNTSC, Generic Counter Scaling (hw/timer/sse-counter.c) This is optional, and we don't implement it yet. (There's an open ticket for i

Re: Status of some Arm features

2024-11-19 Thread Peter Maydell
On Tue, 19 Nov 2024 at 16:52, Pierrick Bouvier wrote: > > On 11/19/24 02:09, Peter Maydell wrote: > > On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier > > wrote: > >> I'm currently reviewing the QEMU Arm documentation, and I have a > >> question about the status of following features: > >> > >> 8.0

Re: Status of some Arm features

2024-11-19 Thread Pierrick Bouvier
On 11/19/24 02:09, Peter Maydell wrote: On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier wrote: I'm currently reviewing the QEMU Arm documentation, and I have a question about the status of following features: 8.0: - FEAT_DoubleLock, Double Lock This is actually an "anti-feature" :-) It is op

Re: Status of some Arm features

2024-11-19 Thread Peter Maydell
On Tue, 19 Nov 2024 at 10:09, Peter Maydell wrote: > > On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier wrote: > > 8.4: > > - FEAT_CNTSC, Generic Counter Scaling (hw/timer/sse-counter.c) > > This is optional, and we don't implement it yet. (There's an > open ticket for it in Linaro JIRA at > https:/

Re: Status of some Arm features

2024-11-19 Thread Peter Maydell
On Mon, 18 Nov 2024 at 23:33, Pierrick Bouvier wrote: > I'm currently reviewing the QEMU Arm documentation, and I have a > question about the status of following features: > > 8.0: > - FEAT_DoubleLock, Double Lock This is actually an "anti-feature" :-) It is optional from v8.0 and it must not be