Re: [PATCH] hw/riscv/virt: Fix the boot logic if pflash0 is specified

["Li, Yong" <yong.li@intel.com>]

[-- Attachment #1: Type: text/plain, Size: 1864 bytes --]

On 2023/5/17 10:27, Alistair Francis wrote:
> On Sun, Apr 23, 2023 at 11:39 PM Yong Li<yong.li@intel.com>  wrote:
>> The firmware may be specified with -bios
>> and the plfash0 device with option -drive if=pflash.
>> If both options are applied, it is intented that the pflash0 will
>> store the secure variable and the firmware be the one specified
>> by -bios. Explicitly specify "-bios none" if choose to boot from
>> pflash0
> This seems like the right approach.
>
> Can you update the docs/system/riscv/virt.rst docs to include this information?
>
> Alistair

Hi Alistair

Thanks for your review, after syncing with Sunil from ventena team.
Sunil is also working with for thishttps://www.mail-archive.com/qemu-devel@nongnu.org/msg959882.html,
and he will handle this change in his patch. Thanks


>> Signed-off-by: Yong Li<yong.li@intel.com>
>> Cc: "Zhiwei Liu"<zhiwei_liu@linux.alibaba.com>
>> ---
>>   hw/riscv/virt.c | 8 +++++---
>>   1 file changed, 5 insertions(+), 3 deletions(-)
>>
>> diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
>> index 4e3efbee16..b38b41e685 100644
>> --- a/hw/riscv/virt.c
>> +++ b/hw/riscv/virt.c
>> @@ -1296,10 +1296,12 @@ static void virt_machine_done(Notifier *notifier, void *data)
>>           kernel_entry = 0;
>>       }
>>
>> -    if (drive_get(IF_PFLASH, 0, 0)) {
>> +    if (drive_get(IF_PFLASH, 0, 0) &&
>> +            !strcmp(machine->firmware, "none")) {
>>           /*
>> -         * Pflash was supplied, let's overwrite the address we jump to after
>> -         * reset to the base of the flash.
>> +         * If pflash (unit 0) was supplied and at the same time the -bois
>> +         * is not specified, then let's overwrite the address we jump to
>> +         * after reset to the base of the flash.
>>            */
>>           start_addr = virt_memmap[VIRT_FLASH].base;
>>       }
>> --
>> 2.25.1
>>
>>

[-- Attachment #2: Type: text/html, Size: 2955 bytes --]