opensbi.git/lib/utils/mpxy, branch master

lib: utils/mpxy: bind channel access to owning domain

2026-07-22T08:28:30Z

The MPXY framework currently stores registered channels in a global list and exposes them to all callers. However, the intended model is that each channel is assigned to a single supervisor domain at boot and remains owned by that domain for its lifetime. Introduce fixed owner-domain tracking in struct sbi_mpxy_channel and make channel lookup and enumeration domain-aware. A channel is now visible only when accessed from its owning domain. Also require the owner to be set before channel registration. This allows MPXY to support systems where the same hart may be reused by multiple domains while keeping channel ownership and visibility fixed to the domain that owns the service. Signed-off-by: Oza Pawandeep Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20260721215758.695736-1-pawandeep.oza@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils/mpxy: Add RPMI MPXY driver for logging service group

2026-07-01T16:00:24Z

Add RPMI MPXY proxy driver for LOGGING service group so that S-mode can leverage LOGGING service group implemented by the platform microcontroller. Reviewed-by: Rahul Pathak Signed-off-by: Subrahmanya Lingappa Link: https://lore.kernel.org/r/20260619103424.990954-1-subrahmanya.lingappa@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils: Fix LLVM compile error in MPXY client driver for RPMI MM

2026-05-11T04:38:55Z

The following compile error is seen with LLVM compiler: CC platform/generic/lib/utils/mpxy/fdt_mpxy_rpmi_mm.o lib/utils/mpxy/fdt_mpxy_rpmi_mm.c:17:6: error: use of GNU 'missing =' extension in designator [-Werror,-Wgnu-designator] 17 | [0] { | ^ | = lib/utils/mpxy/fdt_mpxy_rpmi_mm.c:24:6: error: use of GNU 'missing =' extension in designator [-Werror,-Wgnu-designator] 24 | [1] { | ^ | = 2 errors generated. Add missing "=" in mm_srvcdata[] array initialization to address the above issue. Fixes: 0b041e58c078 ("lib: utils: Add MPXY client driver for RPMI MM service group") Signed-off-by: Anup Patel Reviewed-by: Ranbir Singh Link: https://lore.kernel.org/r/20260509161849.2935816-1-anup.patel@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils: Add MPXY client driver for RPMI MM service group

2026-04-06T12:53:25Z

Add necessary infra for implementing RPMI Management Mode service group on platform microcontroller. Co-authored-by: Sunil V L Signed-off-by: Ranbir Singh Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260225061347.1396504-1-ranbir.singh@oss.qualcomm.com Signed-off-by: Anup Patel

lib: utils: Use SBI_DOMAIN_MMIO to check MMIO device permissions

2025-12-08T11:17:55Z

Drivers or platforms may create memory regions with the MMIO flag set that contain S-mode-accessible MMIO devices. This is strictly correct and should be allowed, along with the existing default case of S-mode-accessible MMIO devices appearing in non-MMIO memory regions. When passed SBI_DOMAIN_MMIO, sbi_domain_check_addr() will perform the correct set of permission checks. Signed-off-by: Samuel Holland Reviewed-by: Yu-Chien Peter Lin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20251121193808.1528050-3-samuel.holland@sifive.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for performance

2025-11-04T05:05:59Z

Add MPXY RPMI mailbox driver for performance. Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-4-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for device power

2025-11-04T05:04:01Z

Add MPXY RPMI mailbox driver for device power. Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-3-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: utils: Add MPXY RPMI mailbox driver for voltage

2025-11-04T05:02:57Z

Add voltage service group for RPMI/MPXY support Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-2-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel

lib: rpmi: Make RPMI drivers as non-experimental

2025-06-24T03:12:27Z

As RPMI v1.0 specification is frozen, disable the experimental tag for such RPMI drivers. Signed-off-by: Rahul Pathak Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250618053854.2577299-2-rpathak@ventanamicro.com Signed-off-by: Anup Patel

lib: utils: Add Implementation ID and Version as RPMI MPXY attributes

2025-06-24T03:12:27Z

The latest frozen RPMI spec has added Implementation ID and Implementation Version as message protocol specific mpxy attributes. Add support for these. Signed-off-by: Rahul Pathak Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250618053854.2577299-1-rpathak@ventanamicro.com Signed-off-by: Anup Patel