On Tue, May 20, 2025 at 01:30:08PM +0200, Magnus Kulke wrote:
> Add support for writing general-purpose registers to MSHV vCPUs
> during initialization or migration using the MSHV register interface. A
> generic set_register call is introduced to abstract the HV call over
> the various register types.
>
> Signed-off-by: Magnus Kulke <magnusku...@linux.microsoft.com>
> ---
[...]
> int mshv_store_regs(CPUState *cpu)
> {
> - error_report("unimplemented");
> - abort();
> + int ret;
> +
> + ret = set_standard_regs(cpu);
> + if (ret < 0) {
> + error_report("Failed to store standard registers");
> + return -1;
> + }
> +
> + /* TODO: should store special registers? the equivalent hvf code doesn't
> */
(I'm just using x86 KVM's special registers as a reference)
We should not need to store them every time we refresh the CPU state,
unless we know some of them are dirtied by QEMU.
Thanks,
Wei.
> +
> + return 0;
> }
>
> +
> int mshv_load_regs(CPUState *cpu)
> {
> error_report("unimplemented");
> --
> 2.34.1
>
