Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.132 2023-06-17T23:09:47+00:00 2023-06-17T23:09:47+00:00 Michael Kelley mikelley@microsoft.com 2023-05-23T17:14:22+00:00 urn:sha1:52ae076c3a9b366b6fa9f7c7e67aed8b28716ed9 State CPUHP_AP_HYPERV_ONLINE has been introduced to correctly sequence the initialization of hyperv_pcpu_input_arg. Use this new state for Hyper-V initialization so that hyperv_pcpu_input_arg is allocated early enough. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/1684862062-51576-2-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> 2022-09-28T13:36:56+00:00 Li kunyu kunyu@nfschina.com 2022-09-28T06:40:46+00:00 urn:sha1:d5ebde1e2b46154d7e03efb1ae3039a304e5386d The generate_guest_id function is more suitable for use after the following modifications. 1. The return value of the function is modified to u64. 2. Remove the d_info1 and d_info2 parameters from the function, keep the u64 type kernel_version parameter. 3. Rename the function to make it clearly a Hyper-V related function, and modify it to hv_generate_guest_id. Signed-off-by: Li kunyu <kunyu@nfschina.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/20220928064046.3545-1-kunyu@nfschina.com Signed-off-by: Wei Liu <wei.liu@kernel.org> 2021-08-04T16:54:36+00:00 Michael Kelley mikelley@microsoft.com 2021-08-04T15:52:37+00:00 urn:sha1:9bbb888824e38cc2e9118ed351fe3d22403a73e1 Add ARM64-specific code to initialize the Hyper-V hypervisor when booting as a guest VM. This code is built only when CONFIG_HYPERV is enabled. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/1628092359-61351-4-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> 2021-08-04T16:54:36+00:00 Michael Kelley mikelley@microsoft.com 2021-08-04T15:52:36+00:00 urn:sha1:512c1117fb2eeb944df1b88bff6e0c002990b369 Add a function to inform Hyper-V about a guest panic. This code is built only when CONFIG_HYPERV is enabled. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/1628092359-61351-3-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> 2021-08-04T16:54:36+00:00 Michael Kelley mikelley@microsoft.com 2021-08-04T15:52:35+00:00 urn:sha1:57d276bbbd322409bb6f7c6446187a29953f8ded hyperv-tlfs.h defines Hyper-V interfaces from the Hyper-V Top Level Functional Spec (TLFS), and #includes the architecture-independent part of hyperv-tlfs.h in include/asm-generic. The published TLFS is distinctly oriented to x86/x64, so the ARM64-specific hyperv-tlfs.h includes information for ARM64 that is not yet formally published. The TLFS is available here: docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs mshyperv.h defines Linux-specific structures and routines for interacting with Hyper-V on ARM64, and #includes the architecture- independent part of mshyperv.h in include/asm-generic. Use these definitions to provide utility functions to make Hyper-V hypercalls and to get and set Hyper-V provided registers associated with a virtual processor. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Sunil Muthuswamy <sunilmut@microsoft.com> Acked-by: Marc Zyngier <maz@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/1628092359-61351-2-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>