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Re: [PATCH v1 17/19] xen/sysctl: wrap around XEN_SYSCTL_livepatch_op
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 13 Mar 2025 10:04:02 +0100
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- Cc: ray.huang@xxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 13 Mar 2025 09:04:14 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 12.03.2025 05:06, Penny Zheng wrote:
> LIVEPATCH mechanism relies on LIVEPATCH_SYSCTL hypercall, so CONFIG_LIVEPATCH
> shall depend on CONFIG_SYSCTL
>
> Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
> ---
> xen/common/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/xen/common/Kconfig b/xen/common/Kconfig
> index fbaca097ff..583972f7e3 100644
> --- a/xen/common/Kconfig
> +++ b/xen/common/Kconfig
> @@ -426,7 +426,7 @@ config CRYPTO
> config LIVEPATCH
> bool "Live patching support"
> default X86
> - depends on "$(XEN_HAS_BUILD_ID)" = "y"
> + depends on "$(XEN_HAS_BUILD_ID)" = "y" && SYSCTL
> select CC_SPLIT_SECTIONS
> help
> Allows a running Xen hypervisor to be dynamically patched using
Here and in the previous patch the title doesn't really describe what's being
done. Earlier in the series such changes are titled "xen/...: make
CONFIG_... depend on CONFIG_SYSCTL". Whereas "wrap around ..." patches add
#ifdef-ary.
Jan
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