XENStatements
Xen Statements
Xen policy supports additional policy language statements: iomemcon, ioportcon, pcidevicecon and pirqcon that are discussed in the sections that follow.
Policy version 30 introduced the devicetreecon statement and also expanded the existing I/O memory range to 64 bits in order to support hardware with more than 44 bits of physical address space (32-bit count of 4K pages).
To compile these additional statements using semodule(8), ensure that the semanage.conf(5) file has the policy-target=xen entry.
iomemcon
Label i/o memory. This may be a single memory location or a range.
The statement definition is:
iomemcon addr context;
Where:
iomemcon | The iomemcon keyword. |
addr | The memory address to apply the context. This may also be a range that consists of a start and end address separated by a hypen (-). |
context | The security context to be applied. |
The statement is valid in:
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Example:
iomemcon 0xfebd9 system_u:object_r:nicP_t; iomemcon 0xfebe0-0xfebff system_u:object_r:nicP_t;
ioportcon
Label i/o ports. This may be a single port or a range.
The statement definition is:
ioportcon port context;
Where:
ioportcon | The ioportcon keyword. |
port | The port to apply the context. This may also be a range that consists of a start and end port number separated by a hypen (-). |
context | The security context to be applied. |
The statement is valid in:
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Example:
ioportcon 0xeac0 system_u:object_r:nicP_t; ioportcon 0xecc0-0xecdf system_u:object_r:nicP_t;
pcidevicecon
Label a PCI device.
The statement definition is:
pcidevicecon pci_id context;
Where:
pcidevicecon | The pcidevicecon keyword. |
pci_id | The PCI indentifer. |
context | The security context to be applied. |
The statement is valid in:
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Example:
pcidevicecon 0xc800 system_u:object_r:nicP_t;
pirqcon
Label an interrupt level.
The statement definition is:
pirqcon irq context;
Where:
pirqcon | The pirqcon keyword. |
irq | The interrupt request number. |
context | The security context to be applied. |
The statement is valid in:
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Example:
pirqcon 33 system_u:object_r:nicP_t;
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