mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-08-28 23:55:20 -04:00
ff5ccdb8d5
Pull x86 cpuid updates from Ingo Molnar:
- CPUID API updates (Ahmed S. Darwish):
- Introduce a centralized CPUID parser
- Introduce a centralized CPUID data model
- Introduce <asm/cpuid/leaf_types.h>
- Rename cpuid_leaf()/cpuid_subleaf() APIs
- treewide: Explicitly include the x86 CPUID headers
- Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)
- Continued removal of pre-i586 support and related simplifications
(Ingo Molnar)
- Add Intel CPU model number for rugged Panther Lake (Tony Luck)
- Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas
Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.
* tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits)
x86/cpu: Make CONFIG_X86_CX8 unconditional
x86/cpu: Remove unused !CONFIG_X86_TSC code
x86/cpuid: Update bitfields to x86-cpuid-db v3.1
tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1
x86/cpu: Make CONFIG_X86_TSC unconditional
MAINTAINERS: Drop obsolete FPU EMULATOR section
x86/cpu: Fix a F00F bug warning and clean up surrounding code
x86/cpu: Add Intel CPU model number for rugged Panther Lake
x86/cpuid: Introduce a centralized CPUID parser
x86/cpu: Introduce a centralized CPUID data model
x86/cpuid: Introduce <asm/cpuid/leaf_types.h>
x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs
x86/cpu: Do not include the CPUID API header in asm/processor.h
Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
x86/cpu, cpufreq: Remove AMD ELAN support
x86/fpu: Remove the math-emu/ FPU emulation library
x86/fpu: Remove the 'no387' boot option
x86/fpu: Remove MATH_EMULATION and related glue code
treewide: Explicitly include the x86 CPUID headers
x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
...
92 lines
2.2 KiB
Plaintext
92 lines
2.2 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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select HIBERNATE_CALLBACKS
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depends on X86_64 || (X86_32 && X86_PAE)
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depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM)
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depends on X86_LOCAL_APIC
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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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depends on X86_64
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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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select GUEST_PERF_EVENTS
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help
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Support running as a Xen PV guest.
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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
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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_PV_SMP
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def_bool y
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depends on XEN_PV && SMP
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config XEN_PV_DOM0
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def_bool y
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depends on XEN_PV && XEN_DOM0
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config XEN_PVHVM
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def_bool y
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depends on XEN && X86_LOCAL_APIC
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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_PVHVM_GUEST
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bool "Xen PVHVM guest support"
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default y
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depends on XEN_PVHVM && PCI
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help
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Support running as a Xen PVHVM guest.
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config XEN_PVH
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bool "Xen PVH guest support"
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depends on XEN && XEN_PVHVM && ACPI
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select PVH
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help
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Support for running as a Xen PVH guest.
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config XEN_DOM0
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bool "Xen Dom0 support"
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default XEN_PV
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depends on (XEN_PV && SWIOTLB_XEN) || (XEN_PVH && X86_64)
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depends on X86_IO_APIC && ACPI && PCI
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select X86_X2APIC if XEN_PVH && X86_64
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help
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Support running as a Xen Dom0 guest.
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config XEN_PV_MSR_SAFE
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bool "Always use safe MSR accesses in PV guests"
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default y
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depends on XEN_PV
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help
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Use safe (not faulting) MSR access functions even if the MSR access
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should not fault anyway.
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The default can be changed by using the "xen_msr_safe" boot parameter.
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