[svsm-devel] [PATCH v3 10/14] configfs-tsm: Allow the privlevel_floor attribute to be updated
Dan Williams
dan.j.williams at intel.com
Tue Apr 16 06:55:41 CEST 2024
Tom Lendacky wrote:
> With the introduction of an SVSM, Linux will be running at a non-zero
> VMPL. Any request for an attestation report at a higher priviledge VMPL
> than what Linux is currently running will result in an error. Allow for
> the privlevel_floor attribute to be updated dynamically so that the
> attribute may be set dynamically.
>
> Signed-off-by: Tom Lendacky <thomas.lendacky at amd.com>
> ---
> drivers/virt/coco/sev-guest/sev-guest.c | 5 ++++-
> include/linux/tsm.h | 2 +-
> 2 files changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/sev-guest.c
> index 1ff897913bf4..bba6531cb606 100644
> --- a/drivers/virt/coco/sev-guest/sev-guest.c
> +++ b/drivers/virt/coco/sev-guest/sev-guest.c
> @@ -885,7 +885,7 @@ static int sev_report_new(struct tsm_report *report, void *data)
> return 0;
> }
>
> -static const struct tsm_ops sev_tsm_ops = {
> +static struct tsm_ops sev_tsm_ops = {
> .name = KBUILD_MODNAME,
> .report_new = sev_report_new,
> };
> @@ -972,6 +972,9 @@ static int __init sev_guest_probe(struct platform_device *pdev)
> snp_dev->input.resp_gpa = __pa(snp_dev->response);
> snp_dev->input.data_gpa = __pa(snp_dev->certs_data);
>
> + /* Set the privlevel_floor attribute based on the current VMPL */
> + sev_tsm_ops.privlevel_floor = snp_get_vmpl();
Why is this not vmpck_id?
More information about the Svsm-devel
mailing list