On 14/7/26 09:56, Subrahmanya Lingappa wrote:
Add a QEMU implementation of the RPMI System Reset service group.
The service advertises shutdown and cold reboot reset types, validates
guest requests, and dispatches accepted requests through the machine
reset and shutdown callbacks. This lets firmware use RPMI reset commands
while keeping the board-specific reset policy in the RISC-V virt machine.
Signed-off-by: Subrahmanya Lingappa <[email protected]>
---
hw/misc/meson.build | 1 +
hw/misc/riscv_rpmi.c | 38 ++++++-
hw/misc/riscv_rpmi_internal.h | 9 ++
hw/misc/riscv_rpmi_sysreset.c | 206 ++++++++++++++++++++++++++++++++++
hw/riscv/virt.c | 40 +++++++
include/hw/misc/riscv_rpmi.h | 13 ++-
include/hw/riscv/rpmi-fdt.h | 11 ++
7 files changed, 313 insertions(+), 5 deletions(-)
create mode 100644 hw/misc/riscv_rpmi_sysreset.c
diff --git a/include/hw/misc/riscv_rpmi.h b/include/hw/misc/riscv_rpmi.h
index b5d8a32f9b..d11db87731 100644
--- a/include/hw/misc/riscv_rpmi.h
+++ b/include/hw/misc/riscv_rpmi.h
+typedef struct RiscvRpmiMachineOps {
+ void (*system_reset)(void *opaque);
+ void (*system_shutdown)(void *opaque);
What is the plan for this @opaque argument?
+} RiscvRpmiMachineOps;
typedef struct RiscvRpmiServiceConfig {
RiscvRpmiServiceKind kind;
const char *node_name;
@@ -56,7 +62,8 @@ typedef struct RiscvRpmiConfig {
uint32_t a2p_req_size;
uint32_t p2a_req_size;
const char *platform_info;
-
+ const RiscvRpmiMachineOps *machine_ops;
+ void *machine_opaque;
const uint32_t *hart_ids;
uint32_t hart_count;
const RiscvRpmiServiceConfig *services;
@@ -73,7 +80,9 @@ struct RiscvRpmiState {
uint32_t a2p_req_size;
uint32_t p2a_req_size;
char *platform_info;
-
+ const RiscvRpmiMachineOps *machine_ops;
+ void *machine_opaque;
+ struct rpmi_service_group *sysreset_group;
uint32_t *hart_ids;
uint32_t hart_count;
const RiscvRpmiServiceConfig *services;
