| Message ID | 20230726151725.1231013-1-adam.johnston@arm.com |
|---|---|
| Headers | show |
| Series | arm-bsp/trusted-firmware-a: Reserve OP-TEE memory from NWd on N1SDP | expand |
On Wed, 26 Jul 2023 16:17:24 +0100, adam.johnston@arm.com wrote: > From: Adam Johnston <adam.johnston@arm.com> > > The physical memory which is used to run OP-TEE on the N1SDP is known > to the secure world via TOS_FW_CONFIG, but it may not be known to the > normal world. > > As a precaution, explicitly reserve this memory via NT_FW_CONFIG to > prevent the normal world from using it. This is not required on most > platforms as the Trusted OS is run from secure RAM. > > [...] Applied, thanks! [1/1] arm-bsp/trusted-firmware-a: Reserve OP-TEE memory from NWd on N1SDP commit: 308e5d7145f2a1295283db445970dd181ecd67b3 Best regards,
Can this fix be backported to mickledore please? Thanks and Regards Adam -----Original Message----- From: Jon Mason <jdmason@kudzu.us> Sent: Thursday, July 27, 2023 4:29 AM To: meta-arm@lists.yoctoproject.org; Ross Burton <Ross.Burton@arm.com>; Adam Johnston <Adam.Johnston@arm.com> Cc: nd <nd@arm.com> Subject: Re: [PATCH 0/1] arm-bsp/trusted-firmware-a: Reserve OP-TEE memory from NWd on N1SDP On Wed, 26 Jul 2023 16:17:24 +0100, adam.johnston@arm.com wrote: > From: Adam Johnston <adam.johnston@arm.com> > > The physical memory which is used to run OP-TEE on the N1SDP is known > to the secure world via TOS_FW_CONFIG, but it may not be known to the > normal world. > > As a precaution, explicitly reserve this memory via NT_FW_CONFIG to > prevent the normal world from using it. This is not required on most > platforms as the Trusted OS is run from secure RAM. > > [...] Applied, thanks! [1/1] arm-bsp/trusted-firmware-a: Reserve OP-TEE memory from NWd on N1SDP commit: 308e5d7145f2a1295283db445970dd181ecd67b3 Best regards, -- Jon Mason <jon.mason@arm.com>
From: Adam Johnston <adam.johnston@arm.com> The physical memory which is used to run OP-TEE on the N1SDP is known to the secure world via TOS_FW_CONFIG, but it may not be known to the normal world. As a precaution, explicitly reserve this memory via NT_FW_CONFIG to prevent the normal world from using it. This is not required on most platforms as the Trusted OS is run from secure RAM. Adam Johnston (1): arm-bsp/trusted-firmware-a: Reserve OP-TEE memory from NWd on N1SDP .../0001-Reserve-OP-TEE-memory-from-nwd.patch | 41 +++++++++++++++++++ .../trusted-firmware-a-n1sdp.inc | 6 +++ 2 files changed, 47 insertions(+) create mode 100644 meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/n1sdp/0001-Reserve-OP-TEE-memory-from-nwd.patch