The appropriate patch set seems to be this lot, in this order:
1f5083c357aa86564d487f6450f410ca42bc1b6a hv: Add hyperv.h to uapi headers
0ac1e18e5d719e10b20332855f8ba2ca25a217db Drivers: hv: vmbus: Extract the
mmio information from DSDT
4933c7c5a3413e377f7cf1b89f7d770c885b11ce vmbus: add missing breaks
fdbdfb294614aec15c6cafa6965fed060f6ca1a6 vmbus: use resource for hyperv
mmio region
90b0df0b5f875ce1cfbad63d2260519795d87df8 hyperv-fb: add support for
generation 2 virtual machines.
2b139333a194d3b3e82f72fed616554478df4d77 hyperv-fb: kick off efifb early
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https://bugs.launchpad.net/bugs/1287398
Title:
hyper-v: frame buffer driver not loading in Generation 2 mode
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Hi folks,
It appears that Hyper-V frame buffer driver may not load while booting
on UEFI based Generation 2 VMs. The following patches address the
problem. Please include:
1) vmbus: use resource for hyperv mmio region
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/hv?id=90eedf0cbe4ba2a316633d6547d331c8b30517e7
2) Drivers: hv: vmbus: Extract the mmio information from DSDT
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/hv?id=90f3453585479d5beb75058da46eb573ced0e6ac
3) hyperv-fb: kick off efifb early
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/video/hyperv_fb.c?id=e5bb7425e5bae76c8950089a946edcba3e0540ab
4) hyperv-fb: add support for generation 2 virtual machines.
http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/video/hyperv_fb.c?id=9069fd54960304a7c941909cbccdf8df9c42b488
Thanks,
Abhishek
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