Changes in Makefile

0222eb30 - hyperv: Move arch/x86/hyperv/hv_proc.c to drivers/hv

Fri, 07 Feb 2025 19:03:22 +0000

hyperv: Move arch/x86/hyperv/hv_proc.c to drivers/hvThese helpers are not specific to x86_64 and will be needed by common code.Remove some unnecessary #includes.Reviewed-by: Michael Kelley Signed-off-by: Nuno Das Neves Link: https://lore.kernel.org/r/1738955002-20821-3-git-send-email-nunodasneves@linux.microsoft.comSigned-off-by: Wei Liu Message-ID: <1738955002-20821-3-git-send-email-nunodasneves@linux.microsoft.com> List of files: /linux-6.15/arch/x86/hyperv/Makefile

3be1bc2f - x86/hyperv: VTL support for Hyper-V

Tue, 11 Apr 2023 05:55:32 +0000

x86/hyperv: VTL support for Hyper-VVirtual Trust Levels (VTL) helps enable Hyper-V Virtual Secure Mode (VSM)feature. VSM is a set of hypervisor capabilities and enlightenmentsoffered to host and guest partitions which enable the creation andmanagement of new security boundaries within operating system software.VSM achieves and maintains isolation through VTLs.Add early initialization for Virtual Trust Levels (VTL). This includesinitializing the x86 platform for VTL and enabling boot support forsecondary CPUs to start in targeted VTL context. For now, only enablethe code for targeted VTL level as 2.When starting an AP at a VTL other than VTL0, the AP must start directlyin 64-bit mode, bypassing the usual 16-bit -> 32-bit -> 64-bit modetransition sequence that occurs after waking up an AP with SIPI whosevector points to the 16-bit AP startup trampoline code.Signed-off-by: Saurabh Sengar Reviewed-by: Michael Kelley Reviewed-by: Stanislav Kinsburskii Link: https://lore.kernel.org/r/1681192532-15460-6-git-send-email-ssengar@linux.microsoft.comSigned-off-by: Wei Liu List of files: /linux-6.15/arch/x86/hyperv/Makefile

810a5212 - x86/hyperv: Add new hvcall guest address host visibility support

Mon, 25 Oct 2021 12:21:08 +0000

x86/hyperv: Add new hvcall guest address host visibility supportAdd new hvcall guest address host visibility support to markmemory visible to host. Call it inside set_memory_decrypted/encrypted(). Add HYPERVISOR feature check in thehv_is_isolation_supported() to optimize in non-virtualizationenvironment.Acked-by: Dave Hansen Reviewed-by: Michael Kelley Signed-off-by: Tianyu Lan Link: https://lore.kernel.org/r/20211025122116.264793-4-ltykernel@gmail.com[ wei: fix conflicts with tip ]Signed-off-by: Wei Liu List of files: /linux-6.15/arch/x86/hyperv/Makefile

e39397d1 - x86/hyperv: implement an MSI domain for root partition

Wed, 03 Feb 2021 15:04:34 +0000

x86/hyperv: implement an MSI domain for root partitionWhen Linux runs as the root partition on Microsoft Hypervisor, itsinterrupts are remapped. Linux will need to explicitly map and unmapinterrupts for hardware.Implement an MSI domain to issue the correct hypercalls. And initializethis irq domain as the default MSI irq domain.Signed-off-by: Sunil Muthuswamy Co-Developed-by: Sunil Muthuswamy Signed-off-by: Wei Liu Reviewed-by: Michael Kelley Link: https://lore.kernel.org/r/20210203150435.27941-16-wei.liu@kernel.org List of files: /linux-6.15/arch/x86/hyperv/Makefile

86b5ec35 - x86/hyperv: provide a bunch of helper functions

Wed, 03 Feb 2021 15:04:28 +0000

x86/hyperv: provide a bunch of helper functionsThey are used to deposit pages into Microsoft Hypervisor and bring uplogical and virtual processors.Signed-off-by: Lillian Grassin-Drake Signed-off-by: Sunil Muthuswamy Signed-off-by: Nuno Das Neves Co-Developed-by: Lillian Grassin-Drake Co-Developed-by: Sunil Muthuswamy Co-Developed-by: Nuno Das Neves Signed-off-by: Wei Liu Reviewed-by: Michael Kelley Link: https://lore.kernel.org/r/20210203150435.27941-10-wei.liu@kernel.org List of files: /linux-6.15/arch/x86/hyperv/Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/x86/hyperv/Makefile

3a025de6 - x86/hyperv: Enable PV qspinlock for Hyper-V

Mon, 08 Oct 2018 08:29:34 +0000

x86/hyperv: Enable PV qspinlock for Hyper-VImplement the required wait and kick callbacks to support PV spinlocks inHyper-V guests.[ tglx: Document the requirement for disabling interrupts in the wait() callback. Remove goto and unnecessary includes. Add prototype for hv_vcpu_is_preempted(). Adapted to pending paravirt changes. ]Signed-off-by: Yi Sun Signed-off-by: Thomas Gleixner Reviewed-by: Juergen Gross Cc: "K. Y. Srinivasan" Cc: Haiyang Zhang Cc: Stephen Hemminger Cc: Michael Kelley (EOSG) Cc: chao.p.peng@intel.comCc: chao.gao@intel.comCc: isaku.yamahata@intel.comCc: tianyu.lan@microsoft.comLink: https://lkml.kernel.org/r/1538987374-51217-3-git-send-email-yi.y.sun@linux.intel.com List of files: /linux-6.15/arch/x86/hyperv/Makefile

eb914cfe - X86/Hyper-V: Add flush HvFlushGuestPhysicalAddressSpace hypercall support

Thu, 19 Jul 2018 08:40:06 +0000

X86/Hyper-V: Add flush HvFlushGuestPhysicalAddressSpace hypercall supportHyper-V supports a pv hypercall HvFlushGuestPhysicalAddressSpace toflush nested VM address space mapping in l1 hypervisor and it's toreduce overhead of flushing ept tlb among vcpus. This patch is toimplement it.Signed-off-by: Lan Tianyu Acked-by: K. Y. Srinivasan Signed-off-by: Paolo Bonzini List of files: /linux-6.15/arch/x86/hyperv/Makefile

2d2ccf24 - x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionally

Sat, 19 May 2018 19:22:48 +0000

x86/Hyper-V/hv_apic: Build the Hyper-V APIC conditionallyThe Hyper-V APIC code is built when CONFIG_HYPERV is enabled but the actualcode in that file is guarded with CONFIG_X86_64. There is no point in doingthis. Neither is there a point in having the CONFIG_HYPERV guard in therebecause the containing directory is not built when CONFIG_HYPERV=n.Further for the hv_init_apic() function a stub is provided only forCONFIG_HYPERV=n, which is pointless as the callsite is not compiled atall. But for X86_32 the stub is missing and the build fails.Clean that up: - Compile hv_apic.c only when CONFIG_X86_64=y - Make the stub for hv_init_apic() available when CONFG_X86_64=nFixes: 6b48cb5f8347 ("X86/Hyper-V: Enlighten APIC access")Reported-by: kbuild test robot Signed-off-by: Thomas Gleixner Cc: K. Y. Srinivasan Cc: Michael Kelley List of files: /linux-6.15/arch/x86/hyperv/Makefile

6b48cb5f - X86/Hyper-V: Enlighten APIC access

Wed, 16 May 2018 21:53:30 +0000

X86/Hyper-V: Enlighten APIC accessHyper-V supports MSR based APIC access; implementthe enlightenment.Signed-off-by: K. Y. Srinivasan Signed-off-by: Thomas Gleixner Reviewed-by: Michael Kelley Cc: olaf@aepfle.deCc: sthemmin@microsoft.comCc: gregkh@linuxfoundation.orgCc: jasowang@redhat.comCc: Michael.H.Kelley@microsoft.comCc: hpa@zytor.comCc: apw@canonical.comCc: devel@linuxdriverproject.orgCc: vkuznets@redhat.comLink: https://lkml.kernel.org/r/20180516215334.6547-1-kys@linuxonhyperv.com List of files: /linux-6.15/arch/x86/hyperv/Makefile

2ffd9e33 - x86/hyper-v: Use hypercall for remote TLB flush

Wed, 02 Aug 2017 16:09:19 +0000

x86/hyper-v: Use hypercall for remote TLB flushHyper-V host can suggest us to use hypercall for doing remote TLB flush,this is supposed to work faster than IPIs.Implementation details: to do HvFlushVirtualAddress{Space,List} hypercallswe need to put the input somewhere in memory and we don't really want tohave memory allocation on each call so we pre-allocate per cpu memory areason boot.pv_ops patching is happening very early so we need to separatehyperv_setup_mmu_ops() and hyper_alloc_mmu().It is possible and easy to implement local TLB flushing too and there iseven a hint for that. However, I don't see a room for optimization on thehost side as both hypercall and native tlb flush will result in vmexit. Thehint is also not set on modern Hyper-V versions.Signed-off-by: Vitaly Kuznetsov Reviewed-by: Andy Shevchenko Reviewed-by: Stephen Hemminger Cc: Andy Lutomirski Cc: Haiyang Zhang Cc: Jork Loeser Cc: K. Y. Srinivasan Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Simon Xiao Cc: Steven Rostedt Cc: Thomas Gleixner Cc: devel@linuxdriverproject.orgLink: http://lkml.kernel.org/r/20170802160921.21791-8-vkuznets@redhat.comSigned-off-by: Ingo Molnar List of files: /linux-6.15/arch/x86/hyperv/Makefile

8730046c - Drivers: hv vmbus: Move Hypercall page setup out of common code

Wed, 18 Jan 2017 23:45:02 +0000

Drivers: hv vmbus: Move Hypercall page setup out of common codeAs part of the effort to separate out architecture specific code, move thehypercall page setup to an architecture specific file.Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/x86/hyperv/Makefile