[SRU][B:linux-kvm][PATCH v3 1/1] UBUNTU: [Config] kvm: Add support for modifying LDT

[Roxana Nicolescu]

Applied to bionic:linux-kvm master-next.

Roxana

On 30/03/2023 10:06, Roxana Nicolescu wrote:
> BugLink: https://bugs.launchpad.net/bugs/2009442
>
> Enables CONFIG_MODIFY_LDT_SYSCALL, adding support for modifying
> the local descriptor table. This allows glibs autopkgtests to run
> properly.
>
> Config matches main kernel as well as newer versions of linux-kvm.
>
> Signed-off-by: Roxana Nicolescu <roxana.nicolescu at canonical.com>
> ---
>   debian.kvm/config/annotations          | 7 ++++++-
>   debian.kvm/config/config.common.ubuntu | 3 ++-
>   2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/debian.kvm/config/annotations b/debian.kvm/config/annotations
> index 32f40d3deec7..efbb794cdc76 100644
> --- a/debian.kvm/config/annotations
> +++ b/debian.kvm/config/annotations
> @@ -1 +1,6 @@
> -# Annotations enforcement disabled
> +# Menu: HEADER
> +# FORMAT: 2
> +# ARCH: x86
> +
> +CONFIG_MODIFY_LDT_SYSCALL				policy<{'amd64': 'y'}>
> +CONFIG_MODIFY_LDT_SYSCALL				mark<ENFORCED> note<LP: #2009442>
> diff --git a/debian.kvm/config/config.common.ubuntu b/debian.kvm/config/config.common.ubuntu
> index 8bedc2793145..3fd179a91081 100644
> --- a/debian.kvm/config/config.common.ubuntu
> +++ b/debian.kvm/config/config.common.ubuntu
> @@ -1387,7 +1387,7 @@ CONFIG_MISC_FILESYSTEMS=y
>   # CONFIG_MMIOTRACE is not set
>   CONFIG_MMU=y
>   CONFIG_MMU_NOTIFIER=y
> -# CONFIG_MODIFY_LDT_SYSCALL is not set
> +CONFIG_MODIFY_LDT_SYSCALL=y
>   CONFIG_MODULES=y
>   CONFIG_MODULES_TREE_LOOKUP=y
>   CONFIG_MODULES_USE_ELF_RELA=y
> @@ -2478,6 +2478,7 @@ CONFIG_VXLAN=m
>   # CONFIG_X25 is not set
>   CONFIG_X509_CERTIFICATE_PARSER=y
>   CONFIG_X86=y
> +# CONFIG_X86_16BIT is not set
>   # CONFIG_X86_5LEVEL is not set
>   CONFIG_X86_64=y
>   CONFIG_X86_64_ACPI_NUMA=y