[Skiboot] [RFC PATCH v5 04/16] Add uv-entry dt property for starting ultravisor

[Alexey Kardashevskiy]

On 28/02/2020 07:40, Ryan Grimm wrote:
> We can jump into any location in the uv image for testing.


and how can a user set this "uv-entry"? I am guessing cronus (which most
of us do not have). I'd rather have this merged into 2/16 or dropped
(for debugging imho it is lot easier to fix the line, compile and copy
the uv lid over to the bmc).


> 
> Signed-off-by: Ryan Grimm <grimm at linux.ibm.com>
> ---
>  hw/ultravisor.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/ultravisor.c b/hw/ultravisor.c
> index 7f263e3e..8dea456a 100644
> --- a/hw/ultravisor.c
> +++ b/hw/ultravisor.c
> @@ -14,8 +14,13 @@ static uint64_t uv_base_addr;
>  
>  static void cpu_start_ultravisor(void *fdt)
>  {
> +	uint64_t uv_entry = 0;
> +
> +	if (dt_find_property(uv_fw_node, "uv-entry"))
> +		uv_entry = dt_prop_get_u64(uv_fw_node, "uv-entry");
> +
>  	prlog(PR_DEBUG, "UV: Starting on CPU 0x%04x\n", this_cpu()->pir);
> -	start_uv(uv_base_addr, fdt);
> +	start_uv(uv_base_addr + uv_entry, fdt);
>  }
>  
>  int start_ultravisor(void *fdt)
> 

-- 
Alexey