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Re: [Qemu-devel] [PATCH v6 00/13] chardevice hotswap
From: |
Denis V. Lunev |
Subject: |
Re: [Qemu-devel] [PATCH v6 00/13] chardevice hotswap |
Date: |
Fri, 14 Jul 2017 12:29:43 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 07/06/2017 03:08 PM, Anton Nefedov wrote:
> Changed in v6:
> - patch 3: chr_lock mutex removed (as discussed, thread safety can be left
> to
> the front-ends, and the front-ends currently supported are good as is).
> - patch 5 now includes related changes for serial and virtio-serial
> - patch 13 commit message extended
>
> ========
>
> Changed in v5:
> - rebased
> - patch 6 fixed (wouldn't compile until patch 7 (broken by previous rebase))
> - patch 11 commit message added
>
> ========
>
> Changed in v4:
> - rebased on top of the latest chardev changes
> - remarks applied
> - patch 1 fixed so it works with alias names
>
> ========
>
> Changed in v3:
> - minor remarks to patch 1 applied
> - patch 3: avoid using bottom-half, handle syncronously
> As mentioned, it gets thing complicated and is only a problem for
> a monitor-connected chardev hotswap and that is not supported for now
> - tests added (patches 6-9)
>
> ========
>
> This serie is a v2 of the February submit
> http://lists.nongnu.org/archive/html/qemu-devel/2017-02/msg01989.html
>
> The interface is changed as requested and the changes are slightly reworked
> and split into separate patches.
>
> ========
>
> The patchset adds support of the character device change without
> a frontend device removal.
> Yet isa-serial and virtio-serial frontends are supported.
>
> The feature can be helpful for e.g. Windows debug allowing to
> establish connection to a live VM from VM with WinDbg.
>
> Anton Nefedov (13):
> char: move QemuOpts->ChardevBackend translation to a separate func
> char: add backend hotswap handler
> char: chardevice hotswap
> char: forbid direct chardevice access for hotswap devices
> char: avoid chardevice direct access
> test-char: destroy chardev-udp after test
> test-char: split char_udp_test
> test-char: split char_file_test
> test-char: add hotswap test
> hmp: add hmp analogue for qmp-chardev-change
> virtio-console: chardev hotswap support
> serial: move TIOCM update to a separate function
> serial: chardev hotswap support
>
> include/chardev/char-fe.h | 22 ++++
> include/chardev/char.h | 19 +++
> hmp.h | 1 +
> backends/rng-egd.c | 2 +-
> chardev/char-fe.c | 16 ++-
> chardev/char-mux.c | 1 +
> chardev/char.c | 164 +++++++++++++++++++++-----
> gdbstub.c | 2 +-
> hmp-commands.hx | 18 ++-
> hmp.c | 34 ++++++
> hw/arm/pxa2xx.c | 3 +-
> hw/arm/strongarm.c | 4 +-
> hw/char/bcm2835_aux.c | 2 +-
> hw/char/cadence_uart.c | 4 +-
> hw/char/debugcon.c | 4 +-
> hw/char/digic-uart.c | 2 +-
> hw/char/escc.c | 8 +-
> hw/char/etraxfs_ser.c | 2 +-
> hw/char/exynos4210_uart.c | 4 +-
> hw/char/grlib_apbuart.c | 4 +-
> hw/char/imx_serial.c | 2 +-
> hw/char/ipoctal232.c | 4 +-
> hw/char/lm32_juart.c | 2 +-
> hw/char/lm32_uart.c | 2 +-
> hw/char/mcf_uart.c | 2 +-
> hw/char/milkymist-uart.c | 2 +-
> hw/char/parallel.c | 2 +-
> hw/char/pl011.c | 2 +-
> hw/char/sclpconsole-lm.c | 4 +-
> hw/char/sclpconsole.c | 4 +-
> hw/char/serial.c | 63 +++++++---
> hw/char/sh_serial.c | 4 +-
> hw/char/spapr_vty.c | 4 +-
> hw/char/stm32f2xx_usart.c | 3 +-
> hw/char/terminal3270.c | 4 +-
> hw/char/virtio-console.c | 35 +++++-
> hw/char/xen_console.c | 4 +-
> hw/char/xilinx_uartlite.c | 2 +-
> hw/ipmi/ipmi_bmc_extern.c | 4 +-
> hw/mips/boston.c | 2 +-
> hw/mips/mips_malta.c | 2 +-
> hw/misc/ivshmem.c | 6 +-
> hw/usb/ccid-card-passthru.c | 6 +-
> hw/usb/dev-serial.c | 7 +-
> hw/usb/redirect.c | 7 +-
> monitor.c | 4 +-
> net/colo-compare.c | 10 +-
> net/filter-mirror.c | 8 +-
> net/slirp.c | 2 +-
> net/vhost-user.c | 7 +-
> qapi-schema.json | 40 +++++++
> qtest.c | 2 +-
> tests/test-char.c | 275
> ++++++++++++++++++++++++++++++++------------
> tests/test-hmp.c | 1 +
> tests/vhost-user-test.c | 2 +-
> 55 files changed, 647 insertions(+), 199 deletions(-)
>
ping
- [Qemu-devel] [PATCH v6 05/13] char: avoid chardevice direct access, (continued)
- [Qemu-devel] [PATCH v6 05/13] char: avoid chardevice direct access, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 06/13] test-char: destroy chardev-udp after test, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 07/13] test-char: split char_udp_test, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 08/13] test-char: split char_file_test, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 09/13] test-char: add hotswap test, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 10/13] hmp: add hmp analogue for qmp-chardev-change, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 11/13] virtio-console: chardev hotswap support, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 12/13] serial: move TIOCM update to a separate function, Anton Nefedov, 2017/07/06
- [Qemu-devel] [PATCH v6 13/13] serial: chardev hotswap support, Anton Nefedov, 2017/07/06
- Re: [Qemu-devel] [PATCH v6 00/13] chardevice hotswap,
Denis V. Lunev <=