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    SubjectRe: [PATCH v2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel
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    On 4/2/19 8:06 PM, Chao Fan wrote:
    > On Tue, Apr 02, 2019 at 09:53:51AM +0000, Junichi Nomura wrote:
    >> On Tue, Apr 02, 2019 at 05:41:49PM +0800, Chao Fan wrote:
    >>> [ 77.989030] kexec_core: Starting new kernel
    >>> early console in extract_kernel
    >>> input_data: 0x000000017f6033b1
    >>> input_len: 0x00000000008412d4
    >>> output: 0x000000017e000000
    >>> output_len: 0x0000000001e15844
    >>> kernel_total_size: 0x0000000001e2c000
    >>> trampoline_32bit: 0x000000000009d000
    >>> booted via startup_64()
    >>>
    >>>
    >>> Physical KASLR disabled: no suitable memory region!
    >>> ------
    >>>
    >>> I am not sure whether I have done the right test.
    >>> This guest is booted from EFI. Here we can see the kexeced kernel
    >>> has completed the compressed boot stage. So I think your PATCH works.
    >>
    >> Thanks for testing. If your test bed doesn't boot even with the patch,
    >> you could check what was found as RSDP with a debug patch like below.
    >
    > Oh no, it booted. I just put the compressed stag log.

    Ah, then I think the patch worked as expected. Thanks.

    --
    Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.

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