[PATCH 0/5] Add new headers for Hyper-V Dom0

Nuno Das Neves
2024-10-03T19:51:16Z

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

The plan going forward is to directly import headers from
Hyper-V. This is a more maintainable way to import definitions
rather than via the TLFS doc. This patch series introduces
new headers (hvhdk.h, hvgdk.h, etc, see patch #3) directly
derived from Hyper-V code.

This patch series replaces hyperv-tlfs.h with hvhdk.h, but only
in Microsoft-maintained Hyper-V code where they are needed. This
leaves the existing hyperv-tlfs.h in use elsewhere - notably for
Hyper-V enlightenments on KVM guests.

An intermediary header "hv_defs.h" is introduced to conditionally
include either hyperv-tlfs.h or hvhdk.h. This is required because
several headers which today include hyperv-tlfs.h, are shared
between Hyper-V and KVM code (e.g. mshyperv.h).

Summary:
Patch 1-2: Cleanup patches
Patch 3: Add the new headers (hvhdk.h, etc..) in include/hyperv/
Patch 4: Add hv_defs.h and use it in mshyperv.h, svm.h,
hyperv_timer.h
Patch 5: Switch to the new headers, only in Hyper-V code

Nuno Das Neves (5):
hyperv: Move hv_connection_id to hyperv-tlfs.h
hyperv: Remove unnecessary #includes
hyperv: Add new Hyper-V headers
hyperv: Add hv_defs.h to conditionally include hyperv-tlfs.h or
hvhdk.h
hyperv: Use hvhdk.h instead of hyperv-tlfs.h in Hyper-V code

arch/arm64/hyperv/hv_core.c | 3 +-
arch/arm64/hyperv/mshyperv.c | 1 +
arch/arm64/include/asm/mshyperv.h | 2 +-
arch/x86/entry/vdso/vma.c | 1 +
arch/x86/hyperv/hv_apic.c | 2 +-
arch/x86/hyperv/hv_init.c | 3 +-
arch/x86/hyperv/hv_proc.c | 4 +-
arch/x86/hyperv/hv_spinlock.c | 1 +
arch/x86/hyperv/hv_vtl.c | 1 +
arch/x86/hyperv/irqdomain.c | 1 +
arch/x86/hyperv/ivm.c | 2 +-
arch/x86/hyperv/mmu.c | 2 +-
arch/x86/hyperv/nested.c | 2 +-
arch/x86/include/asm/kvm_host.h | 1 -
arch/x86/include/asm/mshyperv.h | 3 +-
arch/x86/include/asm/svm.h | 2 +-
arch/x86/include/asm/vdso/gettimeofday.h | 1 +
arch/x86/kernel/cpu/mshyperv.c | 2 +-
arch/x86/kernel/cpu/mtrr/generic.c | 1 +
arch/x86/kvm/vmx/vmx_onhyperv.h | 1 -
arch/x86/mm/pat/set_memory.c | 2 -
drivers/clocksource/hyperv_timer.c | 2 +-
drivers/hv/channel.c | 1 +
drivers/hv/channel_mgmt.c | 1 +
drivers/hv/connection.c | 1 +
drivers/hv/hv.c | 1 +
drivers/hv/hv_balloon.c | 5 +-
drivers/hv/hv_common.c | 2 +-
drivers/hv/hv_kvp.c | 1 -
drivers/hv/hv_snapshot.c | 1 -
drivers/hv/hv_util.c | 1 +
drivers/hv/hyperv_vmbus.h | 1 -
drivers/hv/ring_buffer.c | 1 +
drivers/hv/vmbus_drv.c | 1 +
drivers/iommu/hyperv-iommu.c | 1 +
drivers/net/hyperv/netvsc.c | 1 +
drivers/pci/controller/pci-hyperv.c | 1 +
include/asm-generic/hyperv-tlfs.h | 9 +
include/asm-generic/mshyperv.h | 2 +-
include/clocksource/hyperv_timer.h | 2 +-
include/hyperv/hv_defs.h | 29 +
include/hyperv/hvgdk.h | 66 ++
include/hyperv/hvgdk_ext.h | 46 +
include/hyperv/hvgdk_mini.h | 1212 ++++++++++++++++++++++
include/hyperv/hvhdk.h | 733 +++++++++++++
include/hyperv/hvhdk_mini.h | 310 ++++++
include/linux/hyperv.h | 12 +-
net/vmw_vsock/hyperv_transport.c | 1 -
48 files changed, 2442 insertions(+), 40 deletions(-)
create mode 100644 include/hyperv/hv_defs.h
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