[Xen-devel] [Patch] rombios: compute checksum for roms bigger than a segment

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi,

If we use gPXE with e1000 driver, the size of the gPXE rom is
bigger than a segment. The current rombios cannot compute the
checksum of such a rom.
I ported the following patch to xen.
http://www.nabble.com/-PATCH--compute-checksum-for-roms-bigger-than-a-segment-td22752831.html

FYI, the below is a BIOS map with gPXE of e1000.
(XEN) HVM5: BIOS map:
(XEN) HVM5:  c0000-c8fff: VGA BIOS
(XEN) HVM5:  c9000-d97ff: Etherboot ROM
(XEN) HVM5:  eb000-eb175: SMBIOS tables
(XEN) HVM5:  f0000-fffff: Main BIOS

From: Glauber Costa <glommer@xxxxxxxxxx>
From: "Sebastian Herbszt" <herbszt@xxxxxx>
Ported by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

Best Regards,

Akio Takebe

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