From: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx> Sent: Thursday, November 7, 2024 2:32 PM > > To support Hyper-V Dom0 (aka Linux as root partition), many new > definitions are required. Using "dom0" terminology here and in the Subject: line is likely to be confusing to folks who aren't intimately involved in Hyper-V work. Previous Linux kernel commit messages and code for running in the Hyper-V root partition use "root partition" terminology, and I couldn't find "dom0" having been used before. "root partition" would be more consistent, and it also matches the public documentation for Hyper-V. "dom0" is Xen specific terminology, and having it show up in Hyper-V patches would be confusing for the casual reader. I know "dom0" has been used internally at Microsoft as shorthand for "Hyper-V root partition", but it's probably best to completely avoid such shorthand in public Linux kernel patches and code. Just my $.02 .... > > 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@xxxxxxxxxxxxxxxxxxx> > --- > 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 Thanks! That should be simpler all around. Michael > - 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 > > -- > 2.34.1
