[4/4] xtensa/esp32s3: Run user processes in a world they cannot escape - #19798

Draft

casaroli wants to merge 22 commits into

apache:masterfrom

casaroli:esp32s3-kernel-full

Commits on Aug 28, 2026

mm/pgalloc: support 32 KB and 64 KB page sizes
casaroli
committed
6ea4e3d
xtensa: Support BUILD_KERNEL.
casaroli
committed
2f8f2f9
xtensa/esp32s3: add recoverable cache-attribute fault dispatcher (Unit B)
casaroli
committed
a79b510
xtensa/esp32s3: keep octal-flash init in IRAM for the protected build
casaroli
committed
21144c2
xtensa/esp32s3: Implement per-process address environments.
casaroli
committed
46f934a
boards/esp32s3-devkit: add a kernel-build configuration
casaroli
committed
1cb2926
xtensa/esp32s3: Reach a page pool page through a scratch mapping.
casaroli
committed
d5a5e6a
arch/xtensa: Provide POSIX fork() on the ESP32-S3.
casaroli
committed
6dd8adf
boards/esp32s3-devkit: Add kernel_n8r2, a kernel build for 2 MB PSRAM.
casaroli
committed
3982852
Documentation/esp32s3-devkit: Describe the kernel build configurations.
casaroli
committed
8e3af6c
arch/xtensa: Address the review of the fork series.
casaroli
committed
d2077e2
xtensa/esp32s3: Wire the chip into the kernel build.
casaroli
committed
bbd433e
xtensa/esp32s3: Fix the nxstyle errors CI reports.
casaroli
committed
977fdc3
xtensa/esp32s3: isolate the unprivileged world
casaroli
committed
2ad4c67
xtensa/esp32s3: abort the faulting user task on an unrecoverable fault
casaroli
committed
7db8b04
xtensa/esp32s3: contain an illegal instruction taken in user mode
casaroli
committed
06577ea
xtensa/esp32s3: stop an unreportable cache fault from livelocking
casaroli
committed
cfd465e
xtensa/esp32s3: contain any user fault, not a list of causes
casaroli
committed
204ec90
xtensa/esp32s3: Report an access through an invalid MMU entry.
casaroli
committed
b477cdb
arch/xtensa: Use one name for the stack frame alignment.
casaroli
committed
a60a26e
xtensa/esp32s3: Describe the permission and world functions.
casaroli
committed
76d8ae9
xtensa/esp32s3: Say where a permission violation is served.
casaroli
committed
80665b5

Navigation Menu

Uh oh!

[4/4] xtensa/esp32s3: Run user processes in a world they cannot escape - #19798

[4/4] xtensa/esp32s3: Run user processes in a world they cannot escape#19798
casaroli wants to merge 22 commits into
apache:masterfrom
casaroli:esp32s3-kernel-full

Commits on Aug 28, 2026

mm/pgalloc: support 32 KB and 64 KB page sizes

xtensa: Support BUILD_KERNEL.

xtensa/esp32s3: add recoverable cache-attribute fault dispatcher (Unit B)

xtensa/esp32s3: keep octal-flash init in IRAM for the protected build

xtensa/esp32s3: Implement per-process address environments.

boards/esp32s3-devkit: add a kernel-build configuration

xtensa/esp32s3: Reach a page pool page through a scratch mapping.

arch/xtensa: Provide POSIX fork() on the ESP32-S3.

boards/esp32s3-devkit: Add kernel_n8r2, a kernel build for 2 MB PSRAM.

Documentation/esp32s3-devkit: Describe the kernel build configurations.

arch/xtensa: Address the review of the fork series.

xtensa/esp32s3: Wire the chip into the kernel build.

xtensa/esp32s3: Fix the nxstyle errors CI reports.

xtensa/esp32s3: isolate the unprivileged world

xtensa/esp32s3: abort the faulting user task on an unrecoverable fault

xtensa/esp32s3: contain an illegal instruction taken in user mode

xtensa/esp32s3: stop an unreportable cache fault from livelocking

xtensa/esp32s3: contain any user fault, not a list of causes

xtensa/esp32s3: Report an access through an invalid MMU entry.

arch/xtensa: Use one name for the stack frame alignment.

xtensa/esp32s3: Describe the permission and world functions.

xtensa/esp32s3: Say where a permission violation is served.