From: Tyler Hicks <tyhicks@linux.microsoft.com> To: Allen Pais <allen.lkml@gmail.com> Cc: jens.wiklander@linaro.org, zajec5@gmail.com, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org, Allen Pais <apais@linux.microsoft.com> Subject: Re: [PATCH v2 2/2] firmware: tee_bnxt: implement shutdown method to handle kexec reboots Date: Thu, 18 Mar 2021 15:55:36 -0500 [thread overview] Message-ID: <20210318205536.GB6446@sequoia> (raw) In-Reply-To: <20210225090610.242623-3-allen.lkml@gmail.com> On 2021-02-25 14:36:10, Allen Pais wrote: > From: Allen Pais <apais@linux.microsoft.com> > > On kexec reboot the firmware driver fails to deallocate > shm memory leading to a memory leak. Implement .shutdown() > method to handle kexec reboots and to release shm buffers > correctly. > > Signed-off-by: Allen Pais <apais@linux.microsoft.com> Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Tyler > --- > drivers/firmware/broadcom/tee_bnxt_fw.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/firmware/broadcom/tee_bnxt_fw.c b/drivers/firmware/broadcom/tee_bnxt_fw.c > index ed10da5313e8..4c62e044a99f 100644 > --- a/drivers/firmware/broadcom/tee_bnxt_fw.c > +++ b/drivers/firmware/broadcom/tee_bnxt_fw.c > @@ -242,6 +242,14 @@ static int tee_bnxt_fw_remove(struct device *dev) > return 0; > } > > +static void tee_bnxt_fw_shutdown(struct device *dev) > +{ > + tee_shm_free(pvt_data.fw_shm_pool); > + tee_client_close_session(pvt_data.ctx, pvt_data.session_id); > + tee_client_close_context(pvt_data.ctx); > + pvt_data.ctx = NULL; > +} > + > static const struct tee_client_device_id tee_bnxt_fw_id_table[] = { > {UUID_INIT(0x6272636D, 0x2019, 0x0716, > 0x42, 0x43, 0x4D, 0x5F, 0x53, 0x43, 0x48, 0x49)}, > @@ -257,6 +265,7 @@ static struct tee_client_driver tee_bnxt_fw_driver = { > .bus = &tee_bus_type, > .probe = tee_bnxt_fw_probe, > .remove = tee_bnxt_fw_remove, > + .shutdown = tee_bnxt_fw_shutdown, > }, > }; > > -- > 2.25.1 >
WARNING: multiple messages have this Message-ID (diff)
From: Tyler Hicks <tyhicks@linux.microsoft.com> To: Allen Pais <allen.lkml@gmail.com> Cc: jens.wiklander@linaro.org, zajec5@gmail.com, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org, Allen Pais <apais@linux.microsoft.com> Subject: Re: [PATCH v2 2/2] firmware: tee_bnxt: implement shutdown method to handle kexec reboots Date: Thu, 18 Mar 2021 15:55:36 -0500 [thread overview] Message-ID: <20210318205536.GB6446@sequoia> (raw) In-Reply-To: <20210225090610.242623-3-allen.lkml@gmail.com> On 2021-02-25 14:36:10, Allen Pais wrote: > From: Allen Pais <apais@linux.microsoft.com> > > On kexec reboot the firmware driver fails to deallocate > shm memory leading to a memory leak. Implement .shutdown() > method to handle kexec reboots and to release shm buffers > correctly. > > Signed-off-by: Allen Pais <apais@linux.microsoft.com> Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com> Tyler > --- > drivers/firmware/broadcom/tee_bnxt_fw.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/firmware/broadcom/tee_bnxt_fw.c b/drivers/firmware/broadcom/tee_bnxt_fw.c > index ed10da5313e8..4c62e044a99f 100644 > --- a/drivers/firmware/broadcom/tee_bnxt_fw.c > +++ b/drivers/firmware/broadcom/tee_bnxt_fw.c > @@ -242,6 +242,14 @@ static int tee_bnxt_fw_remove(struct device *dev) > return 0; > } > > +static void tee_bnxt_fw_shutdown(struct device *dev) > +{ > + tee_shm_free(pvt_data.fw_shm_pool); > + tee_client_close_session(pvt_data.ctx, pvt_data.session_id); > + tee_client_close_context(pvt_data.ctx); > + pvt_data.ctx = NULL; > +} > + > static const struct tee_client_device_id tee_bnxt_fw_id_table[] = { > {UUID_INIT(0x6272636D, 0x2019, 0x0716, > 0x42, 0x43, 0x4D, 0x5F, 0x53, 0x43, 0x48, 0x49)}, > @@ -257,6 +265,7 @@ static struct tee_client_driver tee_bnxt_fw_driver = { > .bus = &tee_bus_type, > .probe = tee_bnxt_fw_probe, > .remove = tee_bnxt_fw_remove, > + .shutdown = tee_bnxt_fw_shutdown, > }, > }; > > -- > 2.25.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-03-18 20:56 UTC|newest] Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-25 9:06 [PATCH v2 0/2] optee: fix OOM seen due to tee_shm_free() Allen Pais 2021-02-25 9:06 ` Allen Pais 2021-02-25 9:06 ` [PATCH v2 1/2] optee: fix tee out of memory failure seen during kexec reboot Allen Pais 2021-02-25 9:06 ` Allen Pais 2021-03-01 14:35 ` Jens Wiklander 2021-03-01 14:35 ` Jens Wiklander 2021-03-02 5:51 ` Allen Pais 2021-03-02 5:51 ` Allen Pais 2021-03-16 13:21 ` Allen Pais 2021-03-16 13:21 ` Allen Pais 2021-03-19 7:00 ` Jens Wiklander 2021-03-19 7:00 ` Jens Wiklander 2021-03-22 7:59 ` Allen Pais 2021-03-22 7:59 ` Allen Pais 2021-05-05 13:45 ` Allen Pais 2021-05-05 13:45 ` Allen Pais 2021-05-06 7:02 ` Jens Wiklander 2021-05-06 7:02 ` Jens Wiklander 2021-05-06 7:10 ` Allen Pais 2021-05-06 7:10 ` Allen Pais 2021-05-06 7:19 ` Jens Wiklander 2021-05-06 7:19 ` Jens Wiklander 2021-05-06 7:29 ` Allen Pais 2021-05-06 7:29 ` Allen Pais 2021-05-06 8:15 ` Jens Wiklander 2021-05-06 8:15 ` Jens Wiklander 2021-05-06 8:35 ` Allen Pais 2021-05-06 8:35 ` Allen Pais 2021-05-07 7:03 ` Allen Pais 2021-05-07 7:03 ` Allen Pais 2021-03-18 20:51 ` Tyler Hicks 2021-03-18 20:51 ` Tyler Hicks 2021-02-25 9:06 ` [PATCH v2 2/2] firmware: tee_bnxt: implement shutdown method to handle kexec reboots Allen Pais 2021-02-25 9:06 ` Allen Pais 2021-03-18 20:55 ` Tyler Hicks [this message] 2021-03-18 20:55 ` Tyler Hicks 2021-05-07 3:58 ` [PATCH] optee: Disable shm cache when booting the crash kernel Tyler Hicks 2021-05-07 3:58 ` Tyler Hicks 2021-05-07 7:00 ` Allen Pais 2021-05-07 7:00 ` Allen Pais 2021-05-07 9:23 ` Jens Wiklander 2021-05-07 9:23 ` Jens Wiklander 2021-05-07 9:32 ` Allen Pais 2021-05-07 9:32 ` Allen Pais 2021-05-07 13:17 ` Tyler Hicks 2021-05-07 13:17 ` Tyler Hicks 2021-05-10 7:31 ` Jens Wiklander 2021-05-10 7:31 ` Jens Wiklander 2021-05-12 0:23 ` Tyler Hicks 2021-05-12 0:23 ` Tyler Hicks 2021-05-12 5:50 ` Jens Wiklander 2021-05-12 5:50 ` Jens Wiklander 2021-05-17 20:24 ` Tyler Hicks 2021-05-17 20:24 ` Tyler Hicks 2021-05-17 20:31 ` Tyler Hicks 2021-05-17 20:31 ` Tyler Hicks
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