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Re: efi_enabled(EFI_PARAVIRT) use

From Matt Fleming <matt@codeblueprint.co.uk>
Newsgroups linux.kernel
Subject Re: efi_enabled(EFI_PARAVIRT) use
Date 2016-05-01 15:30 +0200
Message-ID <rtZBD-1IL-7@gated-at.bofh.it> (permalink)
References (3 earlier) <rthKi-7Bl-7@gated-at.bofh.it> <rti3F-7N6-69@gated-at.bofh.it> <rtDUt-IU-7@gated-at.bofh.it> <rtJZU-5Hj-5@gated-at.bofh.it> <rtQeZ-2mD-5@gated-at.bofh.it>
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On Sun, 01 May, at 11:24:18AM, Shannon Zhao wrote:
> Because the UEFI params for Dom0 are located under /hypervisor/uefi node
> instead of /chosen. So it needs to check whether it's a Dom0 then search
> and parse different node with different params arrays.
 
Why can't you search both nodes? Would you ever expect to see both for
a Dom0 kernel?

> So it still needs add another check to firstly parse the fdt to see if
> there is "xen,uefi-system-table" under /hypervisor/uefi node, right? I
> think it's a bit redundant compared with xen_initial_domain().

Sometimes you really do need to check xen_initial_domain(), but I do
not think this is such a case. And if we can get by without adding
that check, the code will be better for it.

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Thread

linux-next: manual merge of the xen-tip tree with the tip tree Stephen Rothwell <sfr@canb.auug.org.au> - 2016-04-29 06:30 +0200
  Re: efi_enabled(EFI_PARAVIRT) use Ingo Molnar <mingo@kernel.org> - 2016-04-29 08:40 +0200
    Re: efi_enabled(EFI_PARAVIRT) use Borislav Petkov <bp@alien8.de> - 2016-04-29 10:30 +0200
      Re: efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-04-29 11:30 +0200
    Re: efi_enabled(EFI_PARAVIRT) use Stefano Stabellini <sstabellini@kernel.org> - 2016-04-29 12:40 +0200
      Re: efi_enabled(EFI_PARAVIRT) use Ingo Molnar <mingo@kernel.org> - 2016-04-29 12:50 +0200
      Re: efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-04-29 16:40 +0200
        Re: efi_enabled(EFI_PARAVIRT) use Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2016-04-29 17:00 +0200
          Re: efi_enabled(EFI_PARAVIRT) use Shannon Zhao <shannon.zhao@linaro.org> - 2016-04-30 16:20 +0200
            Re: efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-04-30 22:50 +0200
              Re: efi_enabled(EFI_PARAVIRT) use Shannon Zhao <shannon.zhao@linaro.org> - 2016-05-01 05:30 +0200
                Re: efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-05-01 15:30 +0200
                Re: efi_enabled(EFI_PARAVIRT) use Shannon Zhao <shannon.zhao@linaro.org> - 2016-05-01 16:40 +0200
                Re: efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-05-02 12:50 +0200
                Re: [Xen-devel] efi_enabled(EFI_PARAVIRT) use Shannon Zhao <zhaoshenglong@huawei.com> - 2016-05-03 03:50 +0200
                Re: [Xen-devel] efi_enabled(EFI_PARAVIRT) use Matt Fleming <matt@codeblueprint.co.uk> - 2016-05-04 13:40 +0200
            Re: [Xen-devel] efi_enabled(EFI_PARAVIRT) use Shannon Zhao <zhaoshenglong@huawei.com> - 2016-05-03 11:20 +0200
        Re: efi_enabled(EFI_PARAVIRT) use Stefano Stabellini <sstabellini@kernel.org> - 2016-04-29 17:00 +0200
          Re: efi_enabled(EFI_PARAVIRT) use Stefano Stabellini <sstabellini@kernel.org> - 2016-04-29 17:40 +0200
            Re: efi_enabled(EFI_PARAVIRT) use Shannon Zhao <shannon.zhao@linaro.org> - 2016-04-30 16:10 +0200

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