+cc: Tom Lendacky
On 22/06/2021 15:47, Philippe Mathieu-Daudé wrote:
> On 6/22/21 2:44 PM, Dov Murik wrote:
>> Suggested-by: Philippe Mathieu-Daudé <phi...@redhat.com>
>> Signed-off-by: Dov Murik <dovmu...@linux.ibm.com>
>> ---
>> hw/i386/pc_sysfw.c | 14 ++++++++++++++
>> 1 file changed, 14 insertions(+)
>>
>> diff --git a/hw/i386/pc_sysfw.c b/hw/i386/pc_sysfw.c
>> index 6ce37a2b05..e8d20cb83f 100644
>> --- a/hw/i386/pc_sysfw.c
>> +++ b/hw/i386/pc_sysfw.c
>> @@ -176,6 +176,20 @@ static void pc_system_parse_ovmf_flash(uint8_t
>> *flash_ptr, size_t flash_size)
>> ovmf_table += tot_len;
>> }
>>
>> +/**
>> + * pc_system_ovmf_table_find - Find the data associated with an entry in
>> OVMF's
>> + * reset vector GUIDed table.
>> + *
>> + * @entry: GUID string of the entry to lookup
>> + * @data: Filled with a pointer to the entry's value (if not NULL)
>> + * @data_len: Filled with the length of the entry's value (if not NULL).
>> Pass
>> + * NULL here if the length of data is known.
>> + *
>> + * Note that this function must be called after the OVMF table was found and
>> + * copied by pc_system_parse_ovmf_flash().
>
> What about replacing this comment by:
>
> assert(ovmf_table && ovmf_table_len);
>
I think this will break things: in target/i386/sev.c we have SEV-ES code
that calls pc_system_ovmf_table_find() and can deal with the case when
there's no OVMF table. An assert will break it.
> Otherwise,
>
> Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
>
Thanks!
-Dov
> Thanks!
>
>> + *
>> + * Return: true if the entry was found in the OVMF table; false otherwise.
>> + */
>> bool pc_system_ovmf_table_find(const char *entry, uint8_t **data,
>> int *data_len)
>> {
>>
>
