linux-kernel - Re: [PATCH v2 0/3] fix xen hvm guest with kaslr enabled

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Date:   Tue, 8 Aug 2017 08:46:16 +0200
From:   Juergen Gross <jgross@...e.com>
To:     linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        x86@...nel.org
Cc:     boris.ostrovsky@...cle.com, hpa@...or.com, tglx@...utronix.de,
        mingo@...hat.com
Subject: Re: [PATCH v2 0/3] fix xen hvm guest with kaslr enabled

On 28/07/17 12:23, Juergen Gross wrote:
> This patch series fixes a regression introduced in 4.13-rc1: A Xen
> HVM guest with KASLR enabled wouldn't boot any longer due to the usage
> of __va() before kernel_randomize_memory() was called.
> 
> Changes in V2:
> - patch 1: test for x86_hyper being not NULL
> 
> Juergen Gross (3):
>   x86: provide an init_mem_mapping hypervisor hook
>   xen: split up xen_hvm_init_shared_info()
>   xen: fix hvm guest with kaslr enabled
> 
>  arch/x86/include/asm/hypervisor.h | 10 +++++++
>  arch/x86/mm/init.c                |  3 ++
>  arch/x86/xen/enlighten_hvm.c      | 59 ++++++++++++++++++++++++---------------
>  3 files changed, 50 insertions(+), 22 deletions(-)
> 

Could I have some feedback, please?

I'd like to get this regression fixed in 4.13.

In case nobody objects this week I'll just add the patches to the Xen
tree for rc5.


Juergen