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8006ec3e91
Add a config option to set the max size of a Xen domain. This is used to scale the size of the physical-to-machine array; it ends up using around 1 page/GByte, so there's no reason to be very restrictive. For a 32-bit guest, the default value of 8GB is probably sufficient; there's not much point in giving a 32-bit machine much more memory than that. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
23 lines
711 B
Plaintext
23 lines
711 B
Plaintext
#
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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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select PARAVIRT
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depends on X86_32
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depends on X86_CMPXCHG && X86_TSC && X86_PAE && !(X86_VISWS || X86_VOYAGER)
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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_MAX_DOMAIN_MEMORY
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int "Maximum allowed size of a domain in gigabytes"
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default 8
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depends on XEN
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help
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The pseudo-physical to machine address array is sized
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according to the maximum possible memory size of a Xen
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domain. This array uses 1 page per gigabyte, so there's no
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need to be too stingy here. |