From: Juergen Gross <jgross@suse.com>
To: Hou Wenlong <houwenlong.hwl@antgroup.com>, linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Ard Biesheuvel <ardb@kernel.org>, Thomas Huth <thuth@redhat.com>,
Kiryl Shutsemau <kas@kernel.org>, Uros Bizjak <ubizjak@gmail.com>,
Brian Gerst <brgerst@gmail.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH] x86/xen: Build identity mapping page tables dynamically for XENPV
Date: Tue, 3 Mar 2026 14:20:31 +0100 [thread overview]
Message-ID: <f4b8dcee-3bad-4390-baed-05893c8cb01b@suse.com> (raw)
In-Reply-To: <453981eae7e8158307f971d1632d5023adbe03c3.1769074722.git.houwenlong.hwl@antgroup.com>
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On 22.01.26 11:06, Hou Wenlong wrote:
> After commit 47ffe0578aee ("x86/pvh: Add 64bit relocation page tables"),
> the PVH entry uses a new set of page tables instead of the
> preconstructed page tables in head64.S. Since those preconstructed page
> tables are only used in XENPV now and XENPV does not actually need the
> preconstructed identity page tables directly, they can be filled in
> xen_setup_kernel_pagetable(). Therefore, build the identity mapping page
> table dynamically to remove the preconstructed page tables and make the
> code cleaner.
>
> Signed-off-by: Hou Wenlong <houwenlong.hwl@antgroup.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
I'll take this one via the Xen tree.
Juergen
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prev parent reply other threads:[~2026-03-03 13:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 10:06 Hou Wenlong
2026-01-22 11:44 ` Borislav Petkov
2026-03-03 13:20 ` Juergen Gross [this message]
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