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drm/nouveau/secboot: add lazy-bootstrap flag

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When the PMU firmware is present, the falcons it manages need to have
the lazy-bootstrap flag of their WPR header set so the ACR does not boot
them. Add support for this.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Alexandre Courbot 2016-12-14 17:02:50 +09:00 committed by Ben Skeggs
parent 64a94ded89
commit 425c816a80
2 changed files with 7 additions and 0 deletions
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4
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
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@ -241,6 +241,10 @@ acr_r352_ls_img_fill_headers(struct acr_r352 *acr,
whdr->bootstrap_owner = acr->base.boot_falcon;
whdr->status = LSF_IMAGE_STATUS_COPY;
/* Skip bootstrapping falcons started by someone else than ACR */
if (acr->lazy_bootstrap & BIT(_img->falcon_id))
whdr->lazy_bootstrap = 1;
/* Align, save off, and include an LSB header size */
offset = ALIGN(offset, LSF_LSB_HEADER_ALIGN);
whdr->lsb_offset = offset;

3
drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.h
View File

@ -223,6 +223,9 @@ struct acr_r352 {
/* Firmware already loaded? */
bool firmware_ok;
/* Falcons to lazy-bootstrap */
u32 lazy_bootstrap;
/* To keep track of the state of all managed falcons */
enum {
/* In non-secure state, no firmware loaded, no privileges*/