From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
To: Juergen Gross <jgross@suse.com>,
linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org,
linux-acpi@vger.kernel.org, x86@kernel.org
Cc: boris.ostrovsky@oracle.com, hpa@zytor.com, mingo@redhat.com,
tglx@linutronix.de, lenb@kernel.org
Subject: Re: [PATCH v3 0/3] xen: re-enable booting as Xen PVH guest
Date: Mon, 19 Feb 2018 11:27:15 +0100 [thread overview]
Message-ID: <209b38ec-aab4-ea5f-70a2-3f9bdb1f52a1@intel.com> (raw)
In-Reply-To: <20180219100906.14265-1-jgross@suse.com>
On 2/19/2018 11:09 AM, Juergen Gross wrote:
> The Xen PVH boot protocol passes vital information to the kernel via
> a start_info block. One of the data transferred is the physical address
> of the RSDP table.
>
> Unfortunately PVH support in the kernel didn't use that passed address
> for RSDP, but relied on the legacy mechanism searching for the RSDP in
> low memory. After a recent change in Xen putting the RSDP to a higher
> address booting as PVH guest is now failing.
>
> This small series repairs that by passing the RSDP address from the
> start_info block to ACPI handling.
>
> Changes in V3:
> - instead of using a weak function add a function pointer to x86_init
> for obtaining the RSDP address
>
> Juergen Gross (3):
> acpi: introduce acpi_arch_get_root_pointer() for getting rsdp address
> x86/acpi: add a new x86_init_acpi structure to x86_init_ops
> x86/xen: add pvh specific rsdp address retrieval function
>
> arch/x86/include/asm/acpi.h | 7 +++++++
> arch/x86/include/asm/x86_init.h | 9 +++++++++
> arch/x86/kernel/x86_init.c | 5 +++++
> arch/x86/xen/enlighten_pvh.c | 14 +++++++++++---
> drivers/acpi/osl.c | 5 ++++-
> include/linux/acpi.h | 7 +++++++
> 6 files changed, 43 insertions(+), 4 deletions(-)
>
The series is fine by me:
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2018-02-19 10:27 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-19 10:09 [PATCH v3 0/3] xen: re-enable booting as Xen PVH guest Juergen Gross
2018-02-19 10:09 ` [PATCH v3 1/3] acpi: introduce acpi_arch_get_root_pointer() for getting rsdp address Juergen Gross
2018-02-19 10:09 ` [PATCH v3 2/3] x86/acpi: add a new x86_init_acpi structure to x86_init_ops Juergen Gross
2018-02-19 10:09 ` [PATCH v3 3/3] x86/xen: add pvh specific rsdp address retrieval function Juergen Gross
2018-02-19 10:27 ` Rafael J. Wysocki [this message]
2018-02-19 13:43 ` [PATCH v3 0/3] xen: re-enable booting as Xen PVH guest Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=209b38ec-aab4-ea5f-70a2-3f9bdb1f52a1@intel.com \
--to=rafael.j.wysocki@intel.com \
--cc=boris.ostrovsky@oracle.com \
--cc=hpa@zytor.com \
--cc=jgross@suse.com \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).