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Question: xen + vhost user

To: "stefano.stabellini@xxxxxxx" <stefano.stabellini@xxxxxxx>, Viresh Kumar <viresh.kumar@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, "oleksandr_tyshchenko@xxxxxxxx" <oleksandr_tyshchenko@xxxxxxxx>

From: Peng Fan <peng.fan@xxxxxxx>

Date: Sun, 30 Jun 2024 12:58:48 +0000

Accept-language: en-US

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Delivery-date: Sun, 30 Jun 2024 12:59:04 +0000

List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

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Thread-topic: Question: xen + vhost user

Hi All, I am trying to enable vhost user input with xen hypervisor on i.MX95, using qemu vhost-user-input. But meet " Invalid vring_addr message ". My xen domu cfg: '-chardev', 'socket,path=/tmp/input.sock,id=mouse0', '-device', 'vhost-user-input-pci,chardev=mouse0', Anyone knows what missing? Partial error log: ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_ADDR (9) Flags: 0x1 Size: 40 vhost_vring_addr: index: 0 flags: 0 desc_user_addr: 0x0000ffff889b0000 used_user_addr: 0x0000ffff889b04c0 avail_user_addr: 0x0000ffff889b0400 log_guest_addr: 0x00000000444714c0 Setting virtq addresses: vring_desc at (nil) vring_used at (nil) vring_avail at (nil) ** (vhost-user-input:1816): CRITICAL **: 07:20:46.077: Invalid vring_addr message Thanks, Peng. The full vhost user debug log: ./vhost-user-input --socket-path=/tmp/input.sock --evdev-path=/d -path=/dev/input/event1 ./vhost-user-input --socket-path=/tmp/input.sock --evdev- ================ Vhost user message ================ Request: VHOST_USER_GET_FEATURES (1) Flags: 0x1 Size: 0 Sending back to guest u64: 0x0000000175000000 ================ Vhost user message ================ Request: VHOST_USER_GET_PROTOCOL_FEATURES (15) Flags: 0x1 Size: 0 ================ Vhost user message ================ Request: VHOST_USER_SET_PROTOCOL_FEATURES (16) Flags: 0x1 Size: 8 u64: 0x0000000000008e2b ================ Vhost user message ================ Request: VHOST_USER_GET_QUEUE_NUM (17) Flags: 0x1 Size: 0 ================ Vhost user message ================ Request: VHOST_USER_GET_MAX_MEM_SLOTS (36) Flags: 0x1 Size: 0 u64: 0x0000000000000020 ================ Vhost user message ================ Request: VHOST_USER_SET_BACKEND_REQ_FD (21) Flags: 0x9 Size: 0 Fds: 6 Got backend_fd: 6 ================ Vhost user message ================ Request: VHOST_USER_SET_OWNER (3) Flags: 0x1 Size: 0 ================ Vhost user message ================ Request: VHOST_USER_GET_FEATURES (1) Flags: 0x1 Size: 0 Sending back to guest u64: 0x0000000175000000 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_CALL (13) Flags: 0x1 Size: 8 Fds: 7 u64: 0x0000000000000000 Got call_fd: 7 for vq: 0 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_ERR (14) Flags: 0x1 Size: 8 Fds: 8 u64: 0x0000000000000000 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_CALL (13) Flags: 0x1 Size: 8 Fds: 9 u64: 0x0000000000000001 Got call_fd: 9 for vq: 1 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_ERR (14) Flags: 0x1 Size: 8 Fds: 10 u64: 0x0000000000000001 (XEN) d2v0 Unhandled SMC/HVC: 0x84000050 (XEN) d2v0 Unhandled SMC/HVC: 0x8600ff01 (XEN) d2v0: vGICD: RAZ on reserved register offset 0x00000c (XEN) d2v0: vGICD: unhandled word write 0x000000ffffffff to ICACTIVER4 (XEN) d2v0: vGICR: SGI: unhandled word write 0x000000ffffffff to ICACTIVER0 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_CONFIG (25) Flags: 0x9 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_GET_CONFIG (24) Flags: 0x1 Size: 148 ================ Vhost user message ================ Request: VHOST_USER_SET_FEATURES (2) Flags: 0x1 Size: 8 u64: 0x0000010170000000 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_NUM (8) Flags: 0x1 Size: 8 State.index: 0 State.num: 64 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_BASE (10) Flags: 0x1 Size: 8 State.index: 0 State.num: 0 ================ Vhost user message ================ Request: VHOST_USER_SET_VRING_ADDR (9) Flags: 0x1 Size: 40 vhost_vring_addr: index: 0 flags: 0 desc_user_addr: 0x0000ffff889b0000 used_user_addr: 0x0000ffff889b04c0 avail_user_addr: 0x0000ffff889b0400 log_guest_addr: 0x00000000444714c0 Setting virtq addresses: vring_desc at (nil) vring_used at (nil) vring_avail at (nil) ** (vhost-user-input:1816): CRITICAL **: 07:20:46.077: Invalid vring_addr message root@imx95evk:~#

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