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Re: [PATCH v2 2/2] pci: add romsize property

From: Paolo Bonzini
Subject: Re: [PATCH v2 2/2] pci: add romsize property
Date: Fri, 29 Jan 2021 20:57:12 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0

On 29/01/21 20:51, BALATON Zoltan wrote:
otherwise the BIOS emulator in the guest firmware crashes and this works so I think romfile can be empty and it's a useful feature to have in this case for example. I don't know if this patch changes anything about that but the commit message saying that romfile cannot be empty may be wrong.

The empty property value configures the device not to have a ROM file at all. The commit message says that ROM files (if they exist) cannot be empty, corresponding to this code in pci_add_option_rom:

    } else if (size == 0) {
        error_setg(errp, "romfile \"%s\" is empty", pdev->romfile);


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