2025-04-28T09:00:55+02:00, Andrew Jones <ajo...@ventanamicro.com>:
> On Sun, Apr 27, 2025 at 09:25:57PM +0800, Meng Zhuo wrote:
>> This patch adds host satp mode while kvm/host cpu satp mode is not
>> set.
>
> Huh, the KVM side[1] was written for this purpose, but it appears we never
> got a QEMU side merged.
>
> [1] commit 2776421e6839 ("RISC-V: KVM: provide UAPI for host SATP mode")KVM satp_mode is the current SATP.mode and I don't think the other SATP.modes can generally be guessed from the host SATP mode. Can't QEMU use the host capabilities from cpuinfo or something? Do we need to return a bitmask from KVM? (e.g. WARL all modes in vsatp and return what sticks.) Thanks.
