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Re: [PATCH 1/2] x86/xen: use clear_bss() for Xen PV guests


  • To: Juergen Gross <jgross@xxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 23 Jun 2022 09:59:32 +0200
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  • Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
  • Delivery-date: Thu, 23 Jun 2022 07:59:47 +0000
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On 22.06.2022 18:10, Juergen Gross wrote:
> Instead of clearing the bss area in assembly code, use the clear_bss()
> function.
> 
> This requires to pass the start_info address as parameter to
> xen_start_kernel() in order to avoid the xen_start_info being zeroed
> again.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



 


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