mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-26 15:54:18 +08:00
b3569d3a4b
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.
Also, since commit:
f467c5640c ("kconfig: only write '# CONFIG_FOO is not set' for visible symbols")
... the Kconfig behavior is the same regardless of 'default n' being present or not:
...
One side effect of (and the main motivation for) this change is making
the following two definitions behave exactly the same:
config FOO
bool
config FOO
bool
default n
With this change, neither of these will generate a
'# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
That might make it clearer to people that a bare 'default n' is
redundant.
...
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Juergen Gross <jgross@suse.co>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20181016134217eucas1p2102984488b89178a865162553369025b%7EeGpI5NlJo0851008510eucas1p2D@eucas1p2.samsung.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
79 lines
1.9 KiB
Plaintext
79 lines
1.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# This Kconfig describes xen options
|
|
#
|
|
|
|
config XEN
|
|
bool "Xen guest support"
|
|
depends on PARAVIRT
|
|
select PARAVIRT_CLOCK
|
|
depends on X86_64 || (X86_32 && X86_PAE)
|
|
depends on X86_LOCAL_APIC && X86_TSC
|
|
help
|
|
This is the Linux Xen port. Enabling this will allow the
|
|
kernel to boot in a paravirtualized environment under the
|
|
Xen hypervisor.
|
|
|
|
config XEN_PV
|
|
bool "Xen PV guest support"
|
|
default y
|
|
depends on XEN
|
|
select XEN_HAVE_PVMMU
|
|
select XEN_HAVE_VPMU
|
|
help
|
|
Support running as a Xen PV guest.
|
|
|
|
config XEN_PV_SMP
|
|
def_bool y
|
|
depends on XEN_PV && SMP
|
|
|
|
config XEN_DOM0
|
|
bool "Xen PV Dom0 support"
|
|
default y
|
|
depends on XEN_PV && PCI_XEN && SWIOTLB_XEN
|
|
depends on X86_IO_APIC && ACPI && PCI
|
|
help
|
|
Support running as a Xen PV Dom0 guest.
|
|
|
|
config XEN_PVHVM
|
|
bool "Xen PVHVM guest support"
|
|
default y
|
|
depends on XEN && PCI && X86_LOCAL_APIC
|
|
help
|
|
Support running as a Xen PVHVM guest.
|
|
|
|
config XEN_PVHVM_SMP
|
|
def_bool y
|
|
depends on XEN_PVHVM && SMP
|
|
|
|
config XEN_512GB
|
|
bool "Limit Xen pv-domain memory to 512GB"
|
|
depends on XEN_PV && X86_64
|
|
default y
|
|
help
|
|
Limit paravirtualized user domains to 512GB of RAM.
|
|
|
|
The Xen tools and crash dump analysis tools might not support
|
|
pv-domains with more than 512 GB of RAM. This option controls the
|
|
default setting of the kernel to use only up to 512 GB or more.
|
|
It is always possible to change the default via specifying the
|
|
boot parameter "xen_512gb_limit".
|
|
|
|
config XEN_SAVE_RESTORE
|
|
bool
|
|
depends on XEN
|
|
select HIBERNATE_CALLBACKS
|
|
default y
|
|
|
|
config XEN_DEBUG_FS
|
|
bool "Enable Xen debug and tuning parameters in debugfs"
|
|
depends on XEN && DEBUG_FS
|
|
help
|
|
Enable statistics output and various tuning options in debugfs.
|
|
Enabling this option may incur a significant performance overhead.
|
|
|
|
config XEN_PVH
|
|
bool "Support for running as a PVH guest"
|
|
depends on XEN && XEN_PVHVM && ACPI
|
|
def_bool n
|