From 7ac4d61c5a06fda4c9d4a398fb49f400b2b76f15 Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Sat, 26 Sep 2026 02:03:37 -0400 Subject: gsp_rm: cap event records between replies so the status ring cannot wrap --- kernel/gsp_rm_emulation.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'kernel/gsp_rm_emulation.h') diff --git a/kernel/gsp_rm_emulation.h b/kernel/gsp_rm_emulation.h index 8b9612b..2938c92 100644 --- a/kernel/gsp_rm_emulation.h +++ b/kernel/gsp_rm_emulation.h @@ -49,6 +49,8 @@ struct gsp_emu_context; #define GSPRM_RPC_FUNC_UPDATE_BAR_PDE 70 #define GSPRM_RPC_EVENT_POST_EVENT 0x1003 #define GSPRM_MAX_EVENTS 128 +/* Max event records written between two replies (status-ring safety). */ +#define GSPRM_EVENT_BURST_MAX 24 #define GSPRM_RPC_EVENT_GSP_INIT_DONE 0x1001 /* rpc_set_guest_system_info_v03_00: version fields the driver reads back @@ -192,6 +194,8 @@ struct gsp_rm_emu { } events[GSPRM_MAX_EVENTS]; u32 events_n; u64 events_posted; + u64 events_dropped; + u32 event_burst; /* event records written since the last reply */ }; int gsp_rm_emu_init(struct nv_vgpu_device *vgpu, struct gsp_emu_context *ctx); -- cgit v1.2.3