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d="scan'208";a="42285532" From: Anthony PERARD To: CC: Anthony PERARD , Ian Jackson , Wei Liu Subject: [XEN PATCH 8/8] libxl: Replace QMP command "change" by "blockdev-change-media" Date: Fri, 23 Apr 2021 17:15:58 +0100 Message-ID: <20210423161558.224367-9-anthony.perard@citrix.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210423161558.224367-1-anthony.perard@citrix.com> References: <20210423161558.224367-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) Content-Type: text/plain; charset="utf-8" "change" command as been removed in QEMU 6.0. We can use "blockdev-change-medium" instead. Using `id` with "blockdev-change-medium" requires a change to the QEMU command line, introduced by: "libxl: Use -device for cd-rom drives" Signed-off-by: Anthony PERARD --- tools/libs/light/libxl_disk.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) diff --git a/tools/libs/light/libxl_disk.c b/tools/libs/light/libxl_disk.c index faabdea7a4c3..93936d0dd0f8 100644 --- a/tools/libs/light/libxl_disk.c +++ b/tools/libs/light/libxl_disk.c @@ -962,12 +962,26 @@ static void cdrom_insert_addfd_cb(libxl__egc *egc, fdset =3D libxl__json_object_get_integer(o); =20 devid =3D libxl__device_disk_dev_number(disk->vdev, NULL, NULL); - QMP_PARAMETERS_SPRINTF(&args, "device", "ide-%i", devid); - QMP_PARAMETERS_SPRINTF(&args, "target", "/dev/fdset/%d", fdset); - libxl__qmp_param_add_string(gc, &args, "arg", - libxl__qemu_disk_format_string(disk->format)); qmp->callback =3D cdrom_insert_inserted; - rc =3D libxl__ev_qmp_send(egc, qmp, "change", args); + + /* "change" is deprecated since QEMU 2.5 and the `device` parameter for + * for "blockdev-change-medium" is deprecated in QEMU 2.8. + * But `id` is only available in 2.8 we'll start using the new command + * with `id` with QEMU 2.8. + */ + if (libxl__qmp_ev_qemu_compare_version(qmp, 2, 8, 0) >=3D 0) { + QMP_PARAMETERS_SPRINTF(&args, "id", "ide-%i", devid); + QMP_PARAMETERS_SPRINTF(&args, "filename", "/dev/fdset/%d", fdset); + libxl__qmp_param_add_string(gc, &args, "format", + libxl__qemu_disk_format_string(disk->format)); + rc =3D libxl__ev_qmp_send(egc, qmp, "blockdev-change-medium", args= ); + } else { + QMP_PARAMETERS_SPRINTF(&args, "device", "ide-%i", devid); + QMP_PARAMETERS_SPRINTF(&args, "target", "/dev/fdset/%d", fdset); + libxl__qmp_param_add_string(gc, &args, "arg", + libxl__qemu_disk_format_string(disk->format)); + rc =3D libxl__ev_qmp_send(egc, qmp, "change", args); + } out: if (rc) cdrom_insert_done(egc, cis, rc); /* must be last */ --=20 Anthony PERARD