Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.18.42 2026-06-19T11:43:56+00:00 2026-06-19T11:43:56+00:00 Dexuan Cui decui@microsoft.com 2026-05-27T19:21:01+00:00 urn:sha1:ed0ad65741266176433f23fd6ef27c173f97befc [ Upstream commit 83eb00f31eb1b10735d48e469df72cc2b0e06f6d ] Change the "64 bit" to "64-bit", and the "Os" to "OS". Remove the obsolete paragraph since the guideline has been published in the Hypervisor Top Level Functional Specification for many years. The "OS Type" is 0x1 for Linux, not 0x100. No functional change. Fixes: 83ba0c4f3f31 ("Drivers: hv: Cleanup the guest ID computation") Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2025-01-10T00:54:20+00:00 Nuno Das Neves nunodasneves@linux.microsoft.com 2024-11-25T23:24:42+00:00 urn:sha1:e68bda71a2384e4463c96bac958912b4c5e58502 These headers contain definitions for regular Hyper-V guests (as in hyperv-tlfs.h), as well as interfaces for more privileged guests like the root partition (aka Dom0). These files are derived from headers exported from Hyper-V, rather than being derived from the TLFS document. (Although, to preserve compatibility with existing Linux code, some definitions are copied directly from hyperv-tlfs.h too). The new files follow a naming convention according to their original use: - hdk "host development kit" - gdk "guest development kit" With postfix "_mini" implying userspace-only headers, and "_ext" for extended hypercalls. The use of multiple files and their original names is primarily to keep the provenance of exactly where they came from in Hyper-V code, which is helpful for manual maintenance and extension of these definitions. Microsoft maintainers importing new definitions should take care to put them in the right file. However, Linux kernel code that uses any of the definitions need not be aware of the multiple files or assign any meaning to the new names. Linux kernel code should always just include hvhdk.h Note the new headers contain both arm64 and x86_64 definitions. Some are guarded by #ifdefs, and some are instead prefixed with the architecture, e.g. hv_x64_*. These conventions are kept from Hyper-V code as another tactic to simplify the process of importing and maintaining the definitions, rather than splitting them up into their own files in arch/x86/ and arch/arm64/. These headers are a step toward importing headers directly from Hyper-V in the future, similar to Xen public files in include/xen/interface/. Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com> Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Roman Kisel <romank@linux.microsoft.com> Link: https://lore.kernel.org/r/1732577084-2122-4-git-send-email-nunodasneves@linux.microsoft.com Link: https://lore.kernel.org/r/20250108222138.1623703-2-romank@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>