f422f853af
The scaling information in subleaf 1 should match the values set by KVM in the 'vcpu_info' sub-structure 'time_info' (a.k.a. pvclock_vcpu_time_info) which is shared with the guest, but is not directly available to the VMM. The offset values are not set since a TSC offset is already applied. The TSC frequency should also be set in sub-leaf 2. Signed-off-by: Paul Durrant <pdurrant@amazon.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Link: https://lore.kernel.org/r/20230106103600.528-3-pdurrant@amazon.com Signed-off-by: Sean Christopherson <seanjc@google.com>
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/******************************************************************************
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* hypervisor.h
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*
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* Linux-specific hypervisor handling.
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*
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* Copyright (c) 2002-2004, K A Fraser
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation; or, when distributed
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* separately from the Linux kernel or incorporated into other
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* software packages, subject to the following license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this source file (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy, modify,
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* merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _ASM_X86_XEN_HYPERVISOR_H
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#define _ASM_X86_XEN_HYPERVISOR_H
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extern struct shared_info *HYPERVISOR_shared_info;
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extern struct start_info *xen_start_info;
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#include <asm/processor.h>
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#define XEN_SIGNATURE "XenVMMXenVMM"
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static inline uint32_t xen_cpuid_base(void)
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{
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return hypervisor_cpuid_base(XEN_SIGNATURE, 2);
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}
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struct pci_dev;
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#ifdef CONFIG_XEN_PV_DOM0
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bool xen_initdom_restore_msi(struct pci_dev *dev);
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#else
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static inline bool xen_initdom_restore_msi(struct pci_dev *dev) { return true; }
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#endif
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#ifdef CONFIG_HOTPLUG_CPU
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void xen_arch_register_cpu(int num);
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void xen_arch_unregister_cpu(int num);
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#endif
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#ifdef CONFIG_PVH
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void __init xen_pvh_init(struct boot_params *boot_params);
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void __init mem_map_via_hcall(struct boot_params *boot_params_p);
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#endif
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#endif /* _ASM_X86_XEN_HYPERVISOR_H */
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