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55e544e1 |
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20-Jun-2023 |
Nischala Yelchuri <niyelchu@linux.microsoft.com> |
x86/hyperv: Improve code for referencing hyperv_pcpu_input_arg Several places in code for Hyper-V reference the per-CPU variable hyperv_pcpu_input_arg. Older code uses a multi-line sequence to reference the variable, and usually includes a cast. Newer code does a much simpler direct assignment. The latter is preferable as the complexity of the older code is unnecessary. Update older code to use the simpler direct assignment. Signed-off-by: Nischala Yelchuri <niyelchu@linux.microsoft.com> Link: https://lore.kernel.org/r/1687286438-9421-1-git-send-email-niyelchu@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
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753ed9c9 |
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16-Apr-2021 |
Joseph Salisbury <joseph.salisbury@microsoft.com> |
drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status There is not a consistent pattern for checking Hyper-V hypercall status. Existing code uses a number of variants. The variants work, but a consistent pattern would improve the readability of the code, and be more conformant to what the Hyper-V TLFS says about hypercall status. Implemented new helper functions hv_result(), hv_result_success(), and hv_repcomp(). Changed the places where hv_do_hypercall() and related variants are used to use the helper functions. Signed-off-by: Joseph Salisbury <joseph.salisbury@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1618620183-9967-2-git-send-email-joseph.salisbury@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
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cc4edae4 |
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06-Dec-2018 |
Lan Tianyu <Tianyu.Lan@microsoft.com> |
x86/hyper-v: Add HvFlushGuestAddressList hypercall support Hyper-V provides HvFlushGuestAddressList() hypercall to flush EPT tlb with specified ranges. This patch is to add the hypercall support. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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60cfce4c |
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19-Jul-2018 |
Tianyu Lan <Tianyu.Lan@microsoft.com> |
X86/Hyper-V: Add hyperv_nested_flush_guest_mapping ftrace support This patch is to add hyperv_nested_flush_guest_mapping support to trace hvFlushGuestPhysicalAddressSpace hypercall. Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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eb914cfe |
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19-Jul-2018 |
Tianyu Lan <Tianyu.Lan@microsoft.com> |
X86/Hyper-V: Add flush HvFlushGuestPhysicalAddressSpace hypercall support Hyper-V supports a pv hypercall HvFlushGuestPhysicalAddressSpace to flush nested VM address space mapping in l1 hypervisor and it's to reduce overhead of flushing ept tlb among vcpus. This patch is to implement it. Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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