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| author | Nicholas Piggin <npiggin@gmail.com> | 2025-03-01 01:07:57 +1000 |
|---|---|---|
| committer | Nicholas Piggin <npiggin@gmail.com> | 2025-03-11 22:43:31 +1000 |
| commit | 80f9321308720fa30651e7803347268a7c12c63a (patch) | |
| tree | 87f9e1d15044a734b40e1ac21f95f828bbe65853 /docs/system | |
| parent | 4c84a0a4a6e5c4a374493d99e7eb702def7e7eae (diff) | |
| download | qemu-80f9321308720fa30651e7803347268a7c12c63a.zip qemu-80f9321308720fa30651e7803347268a7c12c63a.tar.gz qemu-80f9321308720fa30651e7803347268a7c12c63a.tar.bz2 | |
ppc/pnv: Add a default formatted PNOR image
The default PNOR image is erased and not recognised by skiboot, so NVRAM
gets disabled. This change adds a tiny pnor file that is a proper FFS
image with a formatted NVRAM partition. This is recognised by skiboot and
will persist across machine reboots.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Diffstat (limited to 'docs/system')
| -rw-r--r-- | docs/system/ppc/powernv.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/docs/system/ppc/powernv.rst b/docs/system/ppc/powernv.rst index de7a807..f3ec2cc 100644 --- a/docs/system/ppc/powernv.rst +++ b/docs/system/ppc/powernv.rst @@ -195,6 +195,13 @@ Use a MTD drive to add a PNOR to the machine, and get a NVRAM : -drive file=./witherspoon.pnor,format=raw,if=mtd +If no mtd drive is provided, the powernv platform will create a default +PNOR device using a tiny formatted PNOR in pc-bios/pnv-pnor.bin opened +read-only (PNOR changes will be persistent across reboots but not across +invocations of QEMU). If no defaults are used, an erased 128MB PNOR is +provided (which skiboot will probably not recognize since it is not +formatted). + Maintainer contact information ------------------------------ |