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The Nitro Enclaves (NE) driver communicates with a new PCI device, that is exposed to a virtual machine (VM) and handles commands meant for handling enclaves lifetime e.g. creation, termination, setting memory regions. The communication with the PCI device is handled using a MMIO space and MSI-X interrupts. This device communicates with the hypervisor on the host, where the VM that spawned the enclave itself runs, e.g. to launch a VM that is used for the enclave. Define the MMIO space of the NE PCI device, the commands that are provided by this device. Add an internal data structure used as private data for the PCI device driver and the function for the PCI device command requests handling. Changelog v9 -> v10 * Update commit message to include the changelog before the SoB tag(s). v8 -> v9 * Fix indent for the NE PCI device command types enum. v7 -> v8 * No changes. v6 -> v7 * Update the documentation to include references to the NE PCI device id and MMIO bar. v5 -> v6 * Update documentation to kernel-doc format. v4 -> v5 * Add a TODO for including flags in the request to the NE PCI device to set a memory region for an enclave. It is not used for now. v3 -> v4 * Remove the "packed" attribute and include padding in the NE data structures. v2 -> v3 * Remove the GPL additional wording as SPDX-License-Identifier is already in place. v1 -> v2 * Update path naming to drivers/virt/nitro_enclaves. * Update NE_ENABLE_OFF / NE_ENABLE_ON defines. Reviewed-by: Alexander Graf <graf@amazon.com> Signed-off-by: Alexandru-Catalin Vasile <lexnv@amazon.com> Signed-off-by: Alexandru Ciobotaru <alcioa@amazon.com> Signed-off-by: Andra Paraschiv <andraprs@amazon.com> Link: https://lore.kernel.org/r/20200921121732.44291-3-andraprs@amazon.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| nitro_enclaves | ||
| vboxguest | ||
| fsl_hypervisor.c | ||
| Kconfig | ||
| Makefile | ||