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soc: qcom: msm_minidump: Configurable Encryption support

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Some regions registered cannot be encrypted in minidump due to some HW
limitations on sdxlemur. To work around this, make the encryption of
minidump regions configurable.

Change-Id: Ibd0899ecaacfda4bd8f05ce0b8eef05c731c18e3
Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Signed-off-by: Sayan Dey <quic_sayand@quicinc.com>
This commit is contained in:
Rohit Agarwal 2024-01-29 12:30:12 +05:30 • committed by Sayan Dey
commit 91292d8e2d
3 changed files with 18 additions and 2 deletions
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1
arch/arm/configs/vendor/sdxlemur.config vendored
View file

@ -513,3 +513,4 @@ CONFIG_ANDROID_BINDERFS=y
CONFIG_ANDROID_BINDER_DEVICES="binder,hwbinder,vndbinder"
# CONFIG_ANDROID_BINDER_IPC_SELFTEST is not set
CONFIG_IPC_LOG_MINIDUMP_BUFFERS=16
# CONFIG_QCOM_MINIDUMP_ENCRYPT is not set

10
drivers/soc/qcom/Kconfig
View file

@ -645,6 +645,16 @@ config MINIDUMP_MAX_ENTRIES
This defines maximum number of entries to be allocated for application
subsytem in Minidump table.
config QCOM_MINIDUMP_ENCRYPT
bool "QCOM Minidump Encryption Required"
depends on QCOM_MINIDUMP
default y
help
This adds a support to decide whether the regions in minidump
table should be encrypted or not. By default, encryption is done
by the boot firmware and the decision for encryption is taken by
the subsystems.
config QCOM_MICRODUMP
tristate "Qualcomm Technologies, Inc. Microdump Support"
depends on MSM_SUBSYSTEM_RESTART

9
drivers/soc/qcom/msm_minidump.c
View file

@ -570,8 +570,13 @@ static int __init msm_minidump_init(void)
minidump_table.revision = md_global_toc->md_revision;
md_ss_toc = &md_global_toc->md_ss_toc[MD_SS_HLOS_ID];
md_ss_toc->encryption_status = MD_SS_ENCR_NONE;
md_ss_toc->encryption_required = MD_SS_ENCR_REQ;
if (IS_ENABLED(CONFIG_QCOM_MINIDUMP_ENCRYPT)) {
md_ss_toc->encryption_status = MD_SS_ENCR_NONE;
md_ss_toc->encryption_required = MD_SS_ENCR_REQ;
} else {
md_ss_toc->encryption_status = MD_SS_ENCR_DONE;
md_ss_toc->encryption_required = MD_SS_ENCR_NOTREQ;
}
minidump_table.md_ss_toc = md_ss_toc;
minidump_table.md_regions = kzalloc((MAX_NUM_ENTRIES *