> On 21.04.24 21:44, Jan Kiszka wrote:
> > On 19.04.24 14:24, 'Mathieu Alexandre-Tetreault' via EFI Boot Guard wrote:
> >>>> enum iTCO_versions {
> >>>> @@ -92,7 +93,12 @@ static const iTCO_regs iTCO_version_regs[] = {
> >>>> },
> >>>> [ITCO_V4] =
> >>>> {
> >>>> - /* Not implemented yet */
> >>>> + .pmc_base_reg = 0x10,
> >>>> + .pmc_reg = 0x1008,
> >>>> + .pmc_no_reboot_mask = (1 << 4),
> >>>
> >>> Is that correct? I'm comparing things here to
> >>> linux/drivers/watchdog/iTCO_wdt.c, no_reboot_bit() which seems to
> >>> deliver a mask, not a bit number.
> >> (1<<4) should be equivalent to 0x00000010. However, it seems that you
> are right the value seems to be wrong. The linux kernel uses
> 0x00000002(1<<1) for iTCO v4.
> >>
> >> I'll get the device and do additional tests.
> >> Do you have some test that you'd like me to do to confirm?
> >>
> >
> > Well, the test is simple: Check that the watchdog is firing after the
> > configured time, rebooting the system. To enforce that, you could load
> > a Linux kernel that does not contain an iTCO watchdog driver.
> >
>
> Already had a chance to check? The Debian community is asking for a new
> release as we have a number of build fixes in master for latest gnuefi, and
> they
> like to update that. Would be good to have this feature included into the next
> release as well.
We currently have a limited amount of iTCO v4 devices. I sent a request to have
access to the device, I don't know when I'll get access to it unfortunately.
With that said, if someone have an iTCO v4 and would like to test. I wouldn't
mind at all.
I know that at some point Arturs Laizans had a device.
https://groups.google.com/g/efibootguard-dev/c/vejOTECkE3s/m/4OktAjFHBAAJ
Best,
Mathieu
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