[PATCH v2 0/4] Add new headers for Hyper-V Dom0

Nuno Das Neves
2024-11-07T22:32:37Z

To support Hyper-V Dom0 (aka Linux as root partition), many new
definitions are required.

The plan going forward is to directly import definitions from
Hyper-V code without waiting for them to land in the TLFS document.
This is a quicker and more maintainable way to import definitions,
and is a step toward the eventual goal of exporting headers directly
from Hyper-V for use in Linux.

This patch series introduces new headers (hvhdk.h, hvgdk.h, etc,
see patch #3) derived directly from Hyper-V code. hyperv-tlfs.h is
replaced with hvhdk.h (which includes the other new headers)
everywhere.

No functional change is expected.

Summary:
Patch 1-2: Minor cleanup patches
Patch 3: Add the new headers (hvhdk.h, etc..) in include/hyperv/
Patch 4: Switch to the new headers

Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
---
Changelog:
v2:
- Rework the series to simply use the new headers everywhere
instead of fiddling around to keep hyperv-tlfs.h used in some
places, suggested by Michael Kelley and Easwar Hariharan
- Fix compilation errors with some configs by adding missing
definitions and changing some names, thanks to Simon Horman for
catching those
- Add additional definitions to the new headers to support them now
replacing hyperv-tlfs.h everywhere
- Add additional context in the commit messages for patches #3 and #4
- In patch #2, don't remove indirect includes. Only remove includes
which truly aren't used, suggested by Michael Kelley

---
Nuno Das Neves (4):
hyperv: Move hv_connection_id to hyperv-tlfs.h
hyperv: Clean up unnecessary #includes
hyperv: Add new Hyper-V headers in include/hyperv
hyperv: Switch from hyperv-tlfs.h to hyperv/hvhdk.h

arch/arm64/hyperv/hv_core.c | 3 +-
arch/arm64/hyperv/mshyperv.c | 4 +-
arch/arm64/include/asm/mshyperv.h | 2 +-
arch/x86/hyperv/hv_apic.c | 1 -
arch/x86/hyperv/hv_init.c | 21 +-
arch/x86/hyperv/hv_proc.c | 3 +-
arch/x86/hyperv/ivm.c | 1 -
arch/x86/hyperv/mmu.c | 1 -
arch/x86/hyperv/nested.c | 2 +-
arch/x86/include/asm/kvm_host.h | 3 +-
arch/x86/include/asm/mshyperv.h | 3 +-
arch/x86/include/asm/svm.h | 2 +-
arch/x86/kernel/cpu/mshyperv.c | 2 +-
arch/x86/kvm/vmx/hyperv_evmcs.h | 2 +-
arch/x86/kvm/vmx/vmx_onhyperv.h | 2 +-
arch/x86/mm/pat/set_memory.c | 2 -
drivers/clocksource/hyperv_timer.c | 2 +-
drivers/hv/hv_balloon.c | 4 +-
drivers/hv/hv_common.c | 2 +-
drivers/hv/hv_kvp.c | 2 +-
drivers/hv/hv_snapshot.c | 2 +-
drivers/hv/hyperv_vmbus.h | 2 +-
include/asm-generic/hyperv-tlfs.h | 9 +
include/asm-generic/mshyperv.h | 2 +-
include/clocksource/hyperv_timer.h | 2 +-
include/hyperv/hvgdk.h | 303 +++++++
include/hyperv/hvgdk_ext.h | 46 +
include/hyperv/hvgdk_mini.h | 1295 ++++++++++++++++++++++++++++
include/hyperv/hvhdk.h | 733 ++++++++++++++++
include/hyperv/hvhdk_mini.h | 310 +++++++
include/linux/hyperv.h | 11 +-
net/vmw_vsock/hyperv_transport.c | 2 +-
32 files changed, 2729 insertions(+), 52 deletions(-)
create mode 100644 include/hyperv/hvgdk.h
create mode 100644 include/hyperv/hvgdk_ext.h
create mode 100644 include/hyperv/hvgdk_mini.h
create mode 100644 include/hyperv/hvhdk.h
create mode 100644 include/hyperv/hvhdk_mini.h

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2.34.1