linux-kernel - Re: [PATCH 0/5] xen: fix dom0 PV boot on some AMD machines

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Message-ID: <b46c051f-98c2-4748-8423-3e3a4511b043@suse.com>
Date: Wed, 7 Aug 2024 12:37:18 +0200
From: Jürgen Groß <jgross@...e.com>
To: linux-kernel@...r.kernel.org, x86@...nel.org
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H. Peter Anvin" <hpa@...or.com>, xen-devel@...ts.xenproject.org
Subject: Re: [PATCH 0/5] xen: fix dom0 PV boot on some AMD machines

On 07.08.24 12:33, Juergen Gross wrote:
> There have been reports of failed boots with Xen due to an overlap of
> the kernel's memory with ACPI NVS reported in the E820 map of the host.
> 
> This series fixes this issue by moving the NVS area in dom0 to some
> higher address.
> 
> Juergen Gross (5):
>    xen: use correct end address of kernel for conflict checking
>    xen: introduce generic helper checking for memory map conflicts
>    xen: move checks for e820 conflicts further up
>    xen: move max_pfn in xen_memory_setup() out of function scope
>    xen: tolerate ACPI NVS memory overlapping with Xen allocated memory
> 
>   arch/x86/xen/mmu_pv.c  |   5 +-
>   arch/x86/xen/setup.c   | 242 +++++++++++++++++++++++++++++++++--------
>   arch/x86/xen/xen-ops.h |   3 +-
>   3 files changed, 201 insertions(+), 49 deletions(-)
> 

Please ignore this series, messed up the "Tested-by:" of Marek by omitting
the tag. Will resend.

Juergen