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| author | Ting Shen <phoenixshen@google.com> | 2018-04-12 15:36:59 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-08-07 01:51:13 -0700 |
| commit | 935d60e8374f0d73123a5dedf0f1c144c3249820 (patch) | |
| tree | be03f872e2ed8fae51b9a954580b6f9846ee6a3d /firmware/2lib/2nvstorage.c | |
| parent | 9ad8a41b8cedef9ac1f0513992ce6958eb86c257 (diff) | |
| download | vboot-935d60e8374f0d73123a5dedf0f1c144c3249820.tar.gz | |
Add AltOS NVRAM flags
Port CL:1009444 to ToT.
Adds (enable|disable)_alt_os_request flag for AltOS boot flow.
BRANCH=none
BUG=b:70804764
TEST=1. make runtests
2. Manually, set and get new flags via crossystem
Change-Id: Ie7fe2620f736335f11c39cbfe37b3fdf400ff926
Reviewed-on: https://chromium-review.googlesource.com/1014840
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'firmware/2lib/2nvstorage.c')
| -rw-r--r-- | firmware/2lib/2nvstorage.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/firmware/2lib/2nvstorage.c b/firmware/2lib/2nvstorage.c index 9090608d..e721ca6a 100644 --- a/firmware/2lib/2nvstorage.c +++ b/firmware/2lib/2nvstorage.c @@ -218,6 +218,10 @@ uint32_t vb2_nv_get(struct vb2_context *ctx, enum vb2_nv_param param) | (p[VB2_NV_OFFS_FW_MAX_ROLLFORWARD2] << 8) | (p[VB2_NV_OFFS_FW_MAX_ROLLFORWARD3] << 16) | (p[VB2_NV_OFFS_FW_MAX_ROLLFORWARD4] << 24)); + case VB2_NV_ENABLE_ALT_OS_REQUEST: + return GETBIT(VB2_NV_OFFS_MISC, VB2_NV_MISC_ENABLE_ALT_OS); + case VB2_NV_DISABLE_ALT_OS_REQUEST: + return GETBIT(VB2_NV_OFFS_MISC, VB2_NV_MISC_DISABLE_ALT_OS); } /* @@ -419,6 +423,12 @@ void vb2_nv_set(struct vb2_context *ctx, p[VB2_NV_OFFS_FW_MAX_ROLLFORWARD3] = (uint8_t)(value >> 16); p[VB2_NV_OFFS_FW_MAX_ROLLFORWARD4] = (uint8_t)(value >> 24); break; + case VB2_NV_ENABLE_ALT_OS_REQUEST: + SETBIT(VB2_NV_OFFS_MISC, VB2_NV_MISC_ENABLE_ALT_OS); + break; + case VB2_NV_DISABLE_ALT_OS_REQUEST: + SETBIT(VB2_NV_OFFS_MISC, VB2_NV_MISC_DISABLE_ALT_OS); + break; } /* |