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xen: Add grant table support
Add Xen 'grant table' driver which allows granting of access to selected local memory pages by other virtual machines and, symmetrically, the mapping of remote memory pages which other virtual machines have granted access to. This driver is a prerequisite for many of the Xen virtual device drivers, which grant the 'device driver domain' restricted and temporary access to only those memory pages that are currently involved in I/O operations. Signed-off-by: Jeremy Fitzhardinge <[email protected]> Signed-off-by: Ian Pratt <[email protected]> Signed-off-by: Christian Limpach <[email protected]> Signed-off-by: Chris Wright <[email protected]>
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5 changed files with 776 additions and 10 deletions
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@ -15,6 +15,8 @@ obj-$(CONFIG_ACPI) += acpi/
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obj-$(CONFIG_PNP) += pnp/
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obj-$(CONFIG_ARM_AMBA) += amba/
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obj-$(CONFIG_XEN) += xen/
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# char/ comes before serial/ etc so that the VT console is the boot-time
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# default.
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obj-y += char/
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