[PATCH] x86/boot: Don't disable PV32 when XEN_SHSTK is compiled out

Andrew Cooper posted 1 patch 1 week ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/xen tags/patchew/20200629103113.9328-1-andrew.cooper3@citrix.com
xen/arch/x86/setup.c | 4 ++++
1 file changed, 4 insertions(+)

[PATCH] x86/boot: Don't disable PV32 when XEN_SHSTK is compiled out

Posted by Andrew Cooper 1 week ago
There is no need to automatically disable PV32 support on SHSTK-capable
hardware if Xen isn't actually using the feature.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
---
CC: Jan Beulich <JBeulich@suse.com>
CC: Wei Liu <wl@xen.org>
CC: Roger Pau Monné <roger.pau@citrix.com>
CC: Paul Durrant <paul@xen.org>

For 4.14.  Minor bugfix.
---
 xen/arch/x86/setup.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
index 2aa1cd50b8..c9b6af826d 100644
--- a/xen/arch/x86/setup.c
+++ b/xen/arch/x86/setup.c
@@ -95,7 +95,11 @@ unsigned long __initdata highmem_start;
 size_param("highmem-start", highmem_start);
 #endif
 
+#ifdef CONFIG_XEN_SHSTK
 static bool __initdata opt_xen_shstk = true;
+#else
+#define opt_xen_shstk false
+#endif
 
 static int __init parse_cet(const char *s)
 {
-- 
2.11.0


RE: [PATCH] x86/boot: Don't disable PV32 when XEN_SHSTK is compiled out

Posted by Paul Durrant 1 week ago
> -----Original Message-----
> From: Andrew Cooper <andrew.cooper3@citrix.com>
> Sent: 29 June 2020 11:31
> To: Xen-devel <xen-devel@lists.xenproject.org>
> Cc: Andrew Cooper <andrew.cooper3@citrix.com>; Jan Beulich <JBeulich@suse.com>; Wei Liu <wl@xen.org>;
> Roger Pau Monné <roger.pau@citrix.com>; Paul Durrant <paul@xen.org>
> Subject: [PATCH] x86/boot: Don't disable PV32 when XEN_SHSTK is compiled out
> 
> There is no need to automatically disable PV32 support on SHSTK-capable
> hardware if Xen isn't actually using the feature.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
> ---
> CC: Jan Beulich <JBeulich@suse.com>
> CC: Wei Liu <wl@xen.org>
> CC: Roger Pau Monné <roger.pau@citrix.com>
> CC: Paul Durrant <paul@xen.org>
> 
> For 4.14.  Minor bugfix.

Release-acked-by: Paul Durrant <paul@xen.org>

> ---
>  xen/arch/x86/setup.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/xen/arch/x86/setup.c b/xen/arch/x86/setup.c
> index 2aa1cd50b8..c9b6af826d 100644
> --- a/xen/arch/x86/setup.c
> +++ b/xen/arch/x86/setup.c
> @@ -95,7 +95,11 @@ unsigned long __initdata highmem_start;
>  size_param("highmem-start", highmem_start);
>  #endif
> 
> +#ifdef CONFIG_XEN_SHSTK
>  static bool __initdata opt_xen_shstk = true;
> +#else
> +#define opt_xen_shstk false
> +#endif
> 
>  static int __init parse_cet(const char *s)
>  {
> --
> 2.11.0



Re: [PATCH] x86/boot: Don't disable PV32 when XEN_SHSTK is compiled out

Posted by Jan Beulich 1 week ago
On 29.06.2020 12:31, Andrew Cooper wrote:
> There is no need to automatically disable PV32 support on SHSTK-capable
> hardware if Xen isn't actually using the feature.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>

Reviewed-by: Jan Beulich <jbeulich@suse.com>