Add user-mode binary to build system #539
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vijaydhanraj
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Exception handlers (other than IST-based exceptions) should run with interrupts enabled if interrupts were enabled at the time the exception was raised. This is necessary to ensure that the `IrqState` nesting management is not confused by nesting that might occur within an exception handler. In addition, most exceptions can safely tolerate interrupts, and need not impact system stability by suppressing interrupt delivery (this is particularly true for #VC exceptions, which can take a long time to execute due to emulation in the host). IST-based exceptions must keep interrupts disabled as long as they execute on the IST stack (this currently applies only to #DF, which is fatal anyway). Interrupt handlers must run with interrupts disabled, but need to update the `IrqState` in case they call into common code which attempts to disable interrupts. The #HV handler must also run with interrupts disabled, and similarly needs to manage the `IrqState`. Signed-off-by: Jon Lange <[email protected]>
Build the utility needed to pack the COCONUT file-system image in the build script. Signed-off-by: Joerg Roedel <[email protected]>
Enable panic='abort' for the COCONUT-SVSM workspace. Signed-off-by: Joerg Roedel <[email protected]>
Exclude the user* packages which will implement user-space modules and support libraries from being included in workspace tests. Signed-off-by: Joerg Roedel <[email protected]>
Lay the foundation for user-space modules by implementing a very basic library crate which, for now, only provides entry code generation, system call wrappers, and panic handling. It also contains the common linker script for all user-space modules. Signed-off-by: Joerg Roedel <[email protected]>
Import the code used for user-space bringup as the init module into the COCONUT-SVSM source code tree. Signed-off-by: Joerg Roedel <[email protected]>
Reflect in the name that the function will be used to parse build component recipes beyond the COCONUT kernel parts. Signed-off-by: Joerg Roedel <[email protected]>
The path attribute will be used for placing user-space components into the file-system image. Signed-off-by: Joerg Roedel <[email protected]>
Extend the build script to build SVSM user-space components and package them up into an image file. Include this image file into the IGVM file if requested by the build recipe. Signed-off-by: Joerg Roedel <[email protected]>
Include a file-system image into the IGVM file for the QEMU target. Signed-off-by: Joerg Roedel <[email protected]>
Include a file-system image into the IGVM file for the Hyper-V target. Signed-off-by: Joerg Roedel <[email protected]>
Include a file-system image into the IGVM file for the Vanadium target. Signed-off-by: Joerg Roedel <[email protected]>
Include a file-system image into the IGVM files for all-targets. Signed-off-by: Joerg Roedel <[email protected]>
Re-organize the documentation for build recipes and document the added ability to specify how to build a user-space file-system image. Signed-off-by: Joerg Roedel <[email protected]>
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This PR imports the helper utility used for user-mode bring-up into the COCONUT-SVSM repository. The build script and the recipes are enhanced to compile the binary and package it into the IGVM files via a generated file-system image.
This PR also creates the directory structure for user-mode modules and introduces the joint library.