android_kernel_zuk_msm8996.git/drivers/soc/qcom/secure_buffer.c, branch master

soc: qcom: secure_buffer: Process large SG tables in batches

2019-05-06T04:35:36+00:00

Currently, if processing an SG table consumes more memory
than can fit in the pre-allocated buffer, then calls to
hyp_assign_table() will fail as if there were not enough
memory available to process the request.

Instead, for every call to hyp assign, allocate enough
memory to process the maximum batch size, and process large
SG tables in pieces, using this memory. This avoids failures
due to large SG tables. Also, since the memory for handling
these requests is now allocated per hyp_assign_table() call,
we can drop the pre-allocated buffer, as it is no longer in
use.

Change-Id: Ie9899a5e2c8de6127707609101f5fb557e3f0533
Signed-off-by: Isaac J. Manjarres

soc: qcom: secure_buffer: Fix the parameter passing to dmac_flush_range

2018-09-14T02:43:51+00:00

For "chunk_list + chunk_list_len", if the chunk_list is type of u32*,
the chunk_list_len will be 4 * of original size. So we flushed a wrong
area size. In some condition like we enabled CONFIG_DEBUG_PAGEALLOC, it
may flush out of page bound of the invalid pte page.

Fix it by manually convert it as void* when doing the addition.

CRs-Fixed: 2309993
Change-Id: I2b88d78ba73d9904fa2bf6106937001715b6037f
Signed-off-by: Zhenhua Huang

msm: secure_buffer: Add SPSS_SP_SHARED vmid

2018-02-16T09:35:43+00:00

Add support for SPSS_SP_SHARED vmid. This vmid is equivalent
to TZ VM, which can be used for sharing memory with TZ with
the assign call.

Change-Id: I10b98820796e8bab7b8275f5ddf44e8814dc0fb0
Signed-off-by: Sudarshan Rajagopalan

qcom: scm: update function return value and input parameter type

2017-07-19T08:52:44+00:00

Update the function return value and input scm_ret variable
type for restore secure configuration in scm_restore_sec_cfg() fn.
Adding scm_ret input variable for scm_get_feat_version() fn.  

Change-Id: Ideef914ded8dfdb4c780fd27d7273986eeb41f5c
Signed-off-by: Mohammed Khajapasha

soc: qcom: secure_buffer: add export symbol hyp_assign_phys

2017-03-17T16:34:51+00:00

Fix the symbol linking error for loadable kernel modules
which is using secure buffer hypervisor api for smmu configuration.

CRs-Fixed: 2019262
Change-Id: I3d83fd4b1854298c1283e03f220de8c673195492
Signed-off-by: Sarada Prasanna Garnayak

soc: qcom: secure_buffer: Fix memory leak

2016-12-20T23:32:52+00:00

Free the sg_table properly.

Change-Id: Idae945d17803e10756bf3a20426e57837d185067
Signed-off-by: Patrick Daly

Merge "soc: qcom: secure_buffer: Fix an uninitialized variable"

2016-11-16T07:39:31+00:00

soc: qcom: secure_buffer: Fix an uninitialized variable

2016-11-14T23:00:09+00:00

Ensure variables are set before the are used to prevent random behavior.

Change-Id: Ib31e5aca648c0f442afe4cbe576ad79786fe6427
Signed-off-by: Patrick Daly

msm: secure_buffer: fix scm call argument layout

2016-11-01T11:13:02+00:00

For hyp_assign calls, dest_vm_and_perm_info wrongly
defines ctx as u32 * type, while TZ expects it as u64.
This creates an inconsistency on 32bit system. Fix it.

Change-Id: I31e8e0b5e9ae240ca031f625cf7c49f1bfe165d4
Signed-off-by: Shiraz Hashim

msm: secure_buffer: Add VMID_CP_CAMERA_PREVIEW

2016-09-30T17:25:26+00:00

Add support for VMID_CP_CAMERA_PREVIEW

Change-Id: Ifacc1ff95262c6240283d19cf02dcac37933c141
Signed-off-by: Liam Mark