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[PATCH] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8

Lukas Bulwahn posted 1 patch 11 months, 1 week ago
There is a newer version of this series
arch/x86/xen/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8
Posted by Lukas Bulwahn 11 months, 1 week ago 
From: Lukas Bulwahn <lukas.bulwahn@redhat.com>

Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit
CPUs") removes the config symbols MCORE2 and MK8.

With that, the references to those two config symbols in xen's x86 Kconfig
are obsolete. Drop them.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
---
 arch/x86/xen/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 77e788e928cd..98d8a50d2aed 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -9,7 +9,7 @@ config XEN
 	select PARAVIRT_CLOCK
 	select X86_HV_CALLBACK_VECTOR
 	depends on X86_64 || (X86_32 && X86_PAE)
-	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8)
+	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
 	depends on X86_LOCAL_APIC && X86_TSC
 	help
 	  This is the Linux Xen port.  Enabling this will allow the
-- 
2.48.1
Re: [PATCH] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8
Posted by Arnd Bergmann 11 months, 1 week ago 
On Mon, Mar 3, 2025, at 10:37, Lukas Bulwahn wrote:
> From: Lukas Bulwahn <lukas.bulwahn@redhat.com>
>
> Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit
> CPUs") removes the config symbols MCORE2 and MK8.
>
> With that, the references to those two config symbols in xen's x86 Kconfig
> are obsolete. Drop them.
>
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>

Good catch!

> diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
> index 77e788e928cd..98d8a50d2aed 100644
> --- a/arch/x86/xen/Kconfig
> +++ b/arch/x86/xen/Kconfig
> @@ -9,7 +9,7 @@ config XEN
>  	select PARAVIRT_CLOCK
>  	select X86_HV_CALLBACK_VECTOR
>  	depends on X86_64 || (X86_32 && X86_PAE)
> -	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8)
> +	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
>  	depends on X86_LOCAL_APIC && X86_TSC
>  	help
>  	  This is the Linux Xen port.  Enabling this will allow the

I suspect some or all all of the other three options should be
dropped as well, given that 32-bit XEN_PV guests are already
unsupported as of

commit a13f2ef168cb2a033a284eb841bcc481ffbc90cf
Author: Juergen Gross <jgross@suse.com>
Date:   Mon Jun 29 10:35:39 2020 +0200

    x86/xen: remove 32-bit Xen PV guest support
    
    Xen is requiring 64-bit machines today and since Xen 4.14 it can be
    built without 32-bit PV guest support. There is no need to carry the
    burden of 32-bit PV guest support in the kernel any longer, as new
    guests can be either HVM or PVH, or they can use a 64 bit kernel.
    
    Remove the 32-bit Xen PV support from the kernel.

and 32-bit Pentium4 and Atom CPUs don't run modern Xen hosts.
Most likely this should be

   depends on X86_64 || (X86_32 && X86_PAE && X86_GENERIC)

to say that running 32-bit XEN_PVHVM guests is still supported
allowed on 64-bit hosts, but not on pure 32-bit machines.

    Arnd
Re: [PATCH] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8
Posted by Juergen Gross 11 months, 1 week ago 
On 03.03.25 10:37, Lukas Bulwahn wrote:
> From: Lukas Bulwahn <lukas.bulwahn@redhat.com>
> 
> Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit
> CPUs") removes the config symbols MCORE2 and MK8.
> 
> With that, the references to those two config symbols in xen's x86 Kconfig
> are obsolete. Drop them.
> 
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Juergen Gross <jgross@suse.com>

BTW, it would have helped to note that said commit is currently
available only via the tip tree.

With that IMO this patch should go in via the tip tree, too.

Juergen
[tip: x86/cpu] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8
Posted by tip-bot2 for Lukas Bulwahn 11 months, 1 week ago 
The following commit has been merged into the x86/cpu branch of tip:

Commit-ID:     091b768604a8df7822aade75dd5bfc5c788154ee
Gitweb:        https://git.kernel.org/tip/091b768604a8df7822aade75dd5bfc5c788154ee
Author:        Lukas Bulwahn <lukas.bulwahn@redhat.com>
AuthorDate:    Mon, 03 Mar 2025 10:37:59 +01:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 04 Mar 2025 11:14:15 +01:00

xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8

Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit CPUs")
removes the config symbols MCORE2 and MK8.

With that, the references to those two config symbols in xen's x86 Kconfig
are obsolete. Drop them.

Fixes: f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit CPUs")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20250303093759.371445-1-lukas.bulwahn@redhat.com
---
 arch/x86/xen/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 77e788e..98d8a50 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -9,7 +9,7 @@ config XEN
 	select PARAVIRT_CLOCK
 	select X86_HV_CALLBACK_VECTOR
 	depends on X86_64 || (X86_32 && X86_PAE)
-	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8)
+	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
 	depends on X86_LOCAL_APIC && X86_TSC
 	help
 	  This is the Linux Xen port.  Enabling this will allow the
[tip: x86/cpu] xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8
Posted by tip-bot2 for Lukas Bulwahn 11 months, 1 week ago 
The following commit has been merged into the x86/cpu branch of tip:

Commit-ID:     5c98a674dcb85be3f42854a80e630f08b436131e
Gitweb:        https://git.kernel.org/tip/5c98a674dcb85be3f42854a80e630f08b436131e
Author:        Lukas Bulwahn <lukas.bulwahn@redhat.com>
AuthorDate:    Mon, 03 Mar 2025 10:37:59 +01:00
Committer:     Ingo Molnar <mingo@kernel.org>
CommitterDate: Mon, 03 Mar 2025 11:15:07 +01:00

xen: Kconfig: Drop reference to obsolete configs MCORE2 and MK8

Commit f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit CPUs")
removes the config symbols MCORE2 and MK8.

With that, the references to those two config symbols in xen's x86 Kconfig
are obsolete. Drop them.

Fixes: f388f60ca904 ("x86/cpu: Drop configuration options for early 64-bit CPUs")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20250303093759.371445-1-lukas.bulwahn@redhat.com
---
 arch/x86/xen/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 77e788e..98d8a50 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -9,7 +9,7 @@ config XEN
 	select PARAVIRT_CLOCK
 	select X86_HV_CALLBACK_VECTOR
 	depends on X86_64 || (X86_32 && X86_PAE)
-	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MCORE2 || MATOM || MK8)
+	depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
 	depends on X86_LOCAL_APIC && X86_TSC
 	help
 	  This is the Linux Xen port.  Enabling this will allow the

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