[SeaBIOS] [edk2] (PAM stuff) reset doesn't work on OVMF + SeaBIOS CSM
David Woodhouse
dwmw2 at infradead.org
Fri Feb 15 00:31:22 CET 2013
On Fri, 2013-02-15 at 00:01 +0100, Laszlo Ersek wrote:
>
> Entering S3 seemed OK (except the screen was not cleared; using
> Cirrus).
> I woke up the guest with
>
> # virsh qemu-monitor-command fw-ovmf.g-f18xfce2012121716.e-rhel63 \
> --hmp --cmd system_wakeup
>
> Trailing portion of the log:
>
> In resume (status=254)
> In 32bit resume
> rsdp=0x00000000
> No resume vector set!
> Attempting a hard reboot
> i8042_wait_write
> In resume (status=0)
> In 32bit resume
> Attempting a hard reboot
> [...]
>
> I can see the following CSM calls earlier:
> - Legacy16InitializeYourself
> - Legacy16GetTableAddress
> - Legacy16DispatchOprom
> - Legacy16UpdateBbs
>
> No calls to PrepareToBoot (which could set RsdpAddr); this is an UEFI
> guest. (The CSM is used for the GOP only.)
So you have the same problem as with reset — you're ending up back in
the CSM in RAM, when you ought to be in the OVMF "ROM".
I wonder if a *Legacy* guest might actually fare a little better? At
least find_resume_vector() would have a chance of working if the CSM has
actually been told where the ACPI tables are...
--
dwmw2
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