| created | 2023-06-18T02:08:30Z |
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| begin | 2023-06-10T00:00:00Z |
| end | 2023-06-11T00:00:00Z |
| path | src/sys |
| commits | 2 |
| date | 2023-06-10T18:31:38Z | |||
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| author | patrick | |||
| files | src/sys/arch/arm64/conf/GENERIC | log | diff | annotate |
| src/sys/arch/arm64/conf/RAMDISK | log | diff | annotate | |
| src/sys/dev/fdt/files.fdt | log | diff | annotate | |
| src/sys/dev/fdt/qcpas.c | log | diff | annotate | |
| message |
Add qcpas(4), a driver for the Peripheral Authentication Service found on Qualcomm SoCs. The immediate task for this driver is to provide firmware to the auxiliary cores and to bring them up. This is accomplished by parsing the ELF files and providing the data in certain memory regions, and telling qcscm(4) to check and execute the firmware on the auxiliary cores. With the cores up we can now talk to the firmware. The glink-edge subnode indicates that we can talk to it using the GLINK protocol over shared memory provided by qcsmem(4). This interface is essentially a channel multiplexer, with each channel identified through an ASCII string. One of those channels connects to a PMIC router, which allows us to talk to the battery manager service that contains information about the charging and battery states. ok drahn@ kettenis@ |
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| date | 2023-06-10T19:30:48Z | |||
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| author | kettenis | |||
| files | src/sys/arch/arm64/arm64/cpu.c | log | diff | annotate |
| src/sys/arch/arm64/arm64/machdep.c | log | diff | annotate | |
| src/sys/arch/arm64/arm64/pmap.c | log | diff | annotate | |
| src/sys/arch/arm64/arm64/process_machdep.c | log | diff | annotate | |
| src/sys/arch/arm64/arm64/trap.c | log | diff | annotate | |
| src/sys/arch/arm64/arm64/vm_machdep.c | log | diff | annotate | |
| src/sys/arch/arm64/include/armreg.h | log | diff | annotate | |
| src/sys/arch/arm64/include/cpu.h | log | diff | annotate | |
| src/sys/arch/arm64/include/pmap.h | log | diff | annotate | |
| src/sys/arch/arm64/include/ptrace.h | log | diff | annotate | |
| src/sys/kern/exec_elf.c | log | diff | annotate | |
| src/sys/kern/sys_process.c | log | diff | annotate | |
| src/sys/sys/exec_elf.h | log | diff | annotate | |
| message |
Implement support for pointer authentication (PAC) in userland. With PAC it is possible to "sign" pointers with a hidden key. The signature is placed in unused bits of the pointer and can be checked later. This can be used to provide "tail CFI" that is similar to what retguard provides. Debuggers need to be aware of the fact that pointers can be signed. For this purpose a new PT_PACMASK ptrace(2) request is introduced that returns as mask that indicates the bits used for the signature. Separate masks are provided for code and data pointers even though the masks are identical in the current implementation. These masks are also written into a special note section in the core dump. ok patrick@ |
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