Re: [Xen-devel] Unable to boot Linux with master EDK2

[Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>]

On Fri, 18 Jan 2019 at 19:30, Julien Grall <julien.grall@xxxxxxx> wrote:
>
> Hi all,
>
> I am trying to boot a Xen guest using the latest EDK2 master (cce9d76358
> "BaseTools: Allow empty value for HiiPcd in Dsc"), GRUB and Linux 5.0-rc2.
>
> The last code executed by Linux is when installing the virtual address
> map in the EFI stub and then it seems to get stuck. I don't have much
> information from the console:
>
> InstallProtocolInterface: 5B1B31A1-9562-11D2-8E3F-00A0C969723B 7E041040
> Loading driver at 0x00068C70000 EntryPoint=0x00069D65664
> Loading driver at 0x00068C70000 EntryPoint=0x00069D65664
> InstallProtocolInterface: BC62157E-3E33-4FEC-9920-2D3B36D750DF 7DF6AB18
> ProtectUefiImageCommon - 0x7E041040
>   - 0x0000000068C70000 - 0x0000000002006000
> SetUefiImageMemoryAttributes - 0x0000000068C70000 - 0x0000000000001000 
> (0x0000000000004008)
> SetUefiImageMemoryAttributes - 0x0000000068C71000 - 0x00000000011CD000 
> (0x0000000000020008)
> SetUefiImageMemoryAttributes - 0x0000000069E3E000 - 0x0000000000E38000 
> (0x0000000000004008)
> EFI stub: Booting Linux Kernel...
> EFI stub: Using DTB from configuration table
> EFI stub: Exiting boot services and installing virtual address map...
> XenBus: Set state to 5
> XenBus: Set state to 5, done
> XenPvBlk: waiting backend state 5, current: 4
> XenStore: Watch event 7E957398
> XenBus: Set state to 6
> XenBus: Set state to 6, done
> XenPvBlk: waiting backend state 6, current: 5
> XenStore: Watch event 7E957398
> XenBus: Set state to 1
> XenBus: Set state to 1, done
> Xen GrantTable, removing 38003
> Xen GrantTable, removing 38002
> Xen GrantTable, removing 38001
> Xen GrantTable, removing 38000
> SetUefiImageMemoryAttributes - 0x000000007F360000 - 0x0000000000040000 
> (0x0000000000000008)
> SetUefiImageMemoryAttributes - 0x000000007BFF0000 - 0x0000000000040000 
> (0x0000000000000008)
> SetUefiImageMemoryAttributes - 0x000000007BFA0000 - 0x0000000000040000 
> (0x0000000000000008)
> SetUefiImageMemoryAttributes - 0x000000007BF00000 - 0x0000000000040000 
> (0x0000000000000008)
> SetUefiImageMemoryAttributes - 0x000000007BE60000 - 0x0000000000040000 
> (0x0000000000000008)
> SetUefiImageMemoryAttributes - 0x000000007BDC0000 - 0x0000000000040000 
> (0x0000000000000008)
>
> The bisector pointed to the following commit:
>
> commit 2f4a5a9f4c17ed88aaa3114d1e161e42cb80a9bf
> Author: Dandan Bi <dandan.bi@xxxxxxxxx>
> Date:   Thu Jan 3 15:31:23 2019 +0800
>
>     MdePkg/BasePeCoffLib: Add more check for relocation data
>
>     REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1426
>
>     V2:
>     (1) Add NULL pointer check for the input parameters
>     (2) Add check for the "Adjust" value before applying fix ups.
>
>     In function PeCoffLoaderRelocateImageForRuntime, it doesn't
>     do much check when do relocation. For API level consideration,
>     it's not safe enough.
>     So this patch is to replace the same code logic with function
>     PeCoffLoaderImageAddress which will cover more validation.
>
>     Cc: Michael D Kinney <michael.d.kinney@xxxxxxxxx>
>     Cc: Liming Gao <liming.gao@xxxxxxxxx>
>     Contributed-under: TianoCore Contribution Agreement 1.1
>     Signed-off-by: Dandan Bi <dandan.bi@xxxxxxxxx>
>     Reviewed-by: Liming Gao <liming.gao@xxxxxxxxx>
>
> Any ideas what could have gone wrong?
>
> Best regards,
>
> --
> Julien Grall

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