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ecca250294
Add a special Kconfig symbol X86_HV_CALLBACK_VECTOR so that the guests using the hypervisor interrupt callback counter can select and thus enable that counter. Select it when xen or hyperv support is enabled. No functional changes. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: linux-hyperv@vger.kernel.org Cc: Nicolai Stange <nstange@suse.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <sashal@kernel.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Cc: xen-devel@lists.xenproject.org Link: https://lkml.kernel.org/r/1559108037-18813-2-git-send-email-yakui.zhao@intel.com
82 lines
2.0 KiB
Plaintext
82 lines
2.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# This Kconfig describes xen options
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#
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config XEN
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bool "Xen guest support"
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depends on PARAVIRT
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select PARAVIRT_CLOCK
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select X86_HV_CALLBACK_VECTOR
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depends on X86_64 || (X86_32 && X86_PAE)
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depends on X86_LOCAL_APIC && X86_TSC
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help
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This is the Linux Xen port. Enabling this will allow the
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kernel to boot in a paravirtualized environment under the
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Xen hypervisor.
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config XEN_PV
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bool "Xen PV guest support"
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default y
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depends on XEN
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select PARAVIRT_XXL
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select XEN_HAVE_PVMMU
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select XEN_HAVE_VPMU
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help
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Support running as a Xen PV guest.
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config XEN_PV_SMP
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def_bool y
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depends on XEN_PV && SMP
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config XEN_DOM0
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bool "Xen PV Dom0 support"
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default y
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depends on XEN_PV && PCI_XEN && SWIOTLB_XEN
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depends on X86_IO_APIC && ACPI && PCI
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help
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Support running as a Xen PV Dom0 guest.
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config XEN_PVHVM
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bool "Xen PVHVM guest support"
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default y
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depends on XEN && PCI && X86_LOCAL_APIC
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help
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Support running as a Xen PVHVM guest.
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config XEN_PVHVM_SMP
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def_bool y
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depends on XEN_PVHVM && SMP
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config XEN_512GB
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bool "Limit Xen pv-domain memory to 512GB"
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depends on XEN_PV && X86_64
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default y
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help
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Limit paravirtualized user domains to 512GB of RAM.
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The Xen tools and crash dump analysis tools might not support
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pv-domains with more than 512 GB of RAM. This option controls the
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default setting of the kernel to use only up to 512 GB or more.
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It is always possible to change the default via specifying the
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boot parameter "xen_512gb_limit".
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config XEN_SAVE_RESTORE
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bool
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depends on XEN
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select HIBERNATE_CALLBACKS
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default y
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config XEN_DEBUG_FS
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bool "Enable Xen debug and tuning parameters in debugfs"
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depends on XEN && DEBUG_FS
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help
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Enable statistics output and various tuning options in debugfs.
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Enabling this option may incur a significant performance overhead.
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config XEN_PVH
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bool "Support for running as a Xen PVH guest"
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depends on XEN && XEN_PVHVM && ACPI
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select PVH
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def_bool n
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