david/ipxe
david
/
ipxe
Archived
1
0
Fork 0
Code
My fork of git://git.ipxe.org/ipxe.git, it is used for my netboot environment at home.
This repository has been archived on 2020-12-06. You can view files and clone it, but cannot push or open issues or pull requests.
5,762 Commits 1 Branch 0 Tags 14 MiB
C 95.2%
Objective-C 1.7%
Assembly 1.3%
Perl 0.7%
Makefile 0.4%
Other 0.6%
Go to file
Michael Brown 936657832f [hyperv] Do not steal ownership from the Gen 2 UEFI firmware 
We must not steal ownership from the Gen 2 UEFI firmware, since doing
so will cause an immediate system crash (most likely in the form of a
reboot).

This problem was masked before commit a0f6e75 ("[hyperv] Do not fail
if guest OS ID MSR is already set"), since prior to that commit we
would always fail if we found any non-zero guest OS identity.  We now
accept a non-zero previous guest OS identity in order to allow for
situations such as chainloading from iPXE to another iPXE, and as a
prerequisite for commit b91cc98 ("[hyperv] Cope with Windows Server
2016 enlightenments").

A proper fix would be to reverse engineer the UEFI protocols exposed
within the Hyper-V Gen 2 firmware and use these to bind to the VMBus
device representing the network connection, (with the native Hyper-V
driver moved to become a BIOS-only feature).

As an interim solution, fail to initialise the native Hyper-V driver
if we detect the guest OS identity known to be used by the Gen 2 UEFI
firmware.  This will cause the standard all-drivers build (ipxe.efi)
to fall back to using the SNP driver.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2017-07-28 21:30:43 +01:00
contrib [coverity] Add Coverity user model 2017-03-22 16:46:03 +02:00
src [hyperv] Do not steal ownership from the Gen 2 UEFI firmware 2017-07-28 21:30:43 +01:00
.travis.yml [travis] Integrate with Coverity Scan 2017-03-23 10:51:25 +02:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org