Re: [PATCH 2/3] target/arm: provide RAZ/WI stubs for more DCC registers

2023-01-13 Thread Peter Maydell
On Thu, 5 Jan 2023 at 22:13, Evgeny Iakovlev wrote: > > Qemu doesn't implement Debug Communication Channel, however when running > Microsoft Hyper-V in software-emulated ARM64 as a guest, it tries to > access some of the DCM registers during an EL2 context switch. I've occasionally thought about

[PATCH 2/3] target/arm: provide RAZ/WI stubs for more DCC registers

2023-01-05 Thread Evgeny Iakovlev
Qemu doesn't implement Debug Communication Channel, however when running Microsoft Hyper-V in software-emulated ARM64 as a guest, it tries to access some of the DCM registers during an EL2 context switch. Provide RAZ/WI stubs for OSDTRRX_EL1, OSDTRTX_EL1 and OSECCR_EL1 registers in the same way th