[libvirt] [PATCH V3 1/2] libxl: drop support for Xen < 4.6

[Ján Tomko]

On Tue, Sep 11, 2018 at 04:38:26PM -0600, Jim Fehlig wrote:
>Currently the libxl driver claims support for Xen >= 4.4, but
>Xen 4.4 and 4.5 are no longer supported upstream. Let's increase
>the minimum supported Xen version to 4.6 and change the defined
>LIBXL_API_VERSION to 0x040500, which is the API version defined
>when Xen 4.6 was released.
>
>Since Xen 4.6 contains a pkgconfig file, drop the now unused code
>that falls back to using LIBVIRT_CHECK_LIB in the absence of
>pkgconfig file. In addition, bumping the LIBXL_API_VERSION
>required adjusting the calls to libxl_set_vcpuaffinity to account
>for the extra parameter in the 0x040500 version of the API.
>
>Signed-off-by: Jim Fehlig <jfehlig at suse.com>
>---
>
>I made some other changes to this patch so have not added Michal's
>ACK from V2. Changes in V3:
>
>- Change definition of LIBXL_API_VERSION to 0x040500, the API
>  version set when Xen 4.6 was released
>- Drop the 'true' parameter to LIBVIRT_CHECK_PKG macro so
>  configure fails if libxl is requested but the devel packages
>  are not installed
>- Remove a now unused variable and a redundant 'if test with_libxl'
>  check
>
> docs/drvxen.html.in      |  2 +-
> m4/virt-driver-libxl.m4  | 27 ++-------------------------
> src/libxl/libxl_domain.c |  2 +-
> src/libxl/libxl_driver.c |  2 +-
> 4 files changed, 5 insertions(+), 28 deletions(-)
>

Reviewed-by: Ján Tomko <jtomko at redhat.com>

The check for libxl_domain_config_from_json can also be dropped.

Jano
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