On 11/10/2024 8:12 PM, Michael Kelley wrote: > 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 .... > Noted - I will update the terminology in v3 and generally avoid "Dom0", except possibly by way of explanation (i.e. to compare it to Xen Dom0). Thanks Nuno >> >> 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
