Re: [PATCH v3 03/37] s390/protvirt: introduce host side setup

Cornelia Huck
2020-02-21T12:39:42Z

On Thu, 20 Feb 2020 05:39:46 -0500
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> From: Vasily Gorbik <gor@linux.ibm.com>
>
> Add "prot_virt" command line option which controls if the kernel
> protected VMs support is enabled at early boot time. This has to be
> done early, because it needs large amounts of memory and will disable
> some features like STP time sync for the lpar.
>
> Extend ultravisor info definitions and expose it via uv_info struct
> filled in during startup.
>
> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Acked-by: David Hildenbrand <david@redhat.com>
> [borntraeger@de.ibm.com: patch merging, splitting, fixing]
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
> .../admin-guide/kernel-parameters.txt | 5 ++
> arch/s390/boot/Makefile | 2 +-
> arch/s390/boot/uv.c | 21 +++++++-
> arch/s390/include/asm/uv.h | 46 +++++++++++++++-
> arch/s390/kernel/Makefile | 1 +
> arch/s390/kernel/setup.c | 4 --
> arch/s390/kernel/uv.c | 52 +++++++++++++++++++
> 7 files changed, 123 insertions(+), 8 deletions(-)
> create mode 100644 arch/s390/kernel/uv.c

Reviewed-by: Cornelia Huck <cohuck@redhat.com>