cherry-pick self-contained changes from #371 #372
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hawkw
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Currently, some code in `hal-x86_64` depends on `liballoc`, while other code does not. This makes it difficult to use parts of the HAL crate in early boot environments without an allocator. This commit adds an "alloc" feature flag to `hal-x86_64`, which enables code that depends on `liballoc`. This commit was factored out of #371.
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Currently, TSS segments can only be constructed from statics. This makes it difficult to construct a TSS dynamically when bringing up an application processor. This commit adds a new `SystemSegment::boxed_tss` constructor, which allows TSS segments to be dynamically allocated, as well as stored in a static. This was factored out of PR #371.
hawkw
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This commit adds support for the IA32_EFER model-specific register in the `hal-x86_64` crate's `cpu::msr` module. This includes a new `Efer` bitflags type representing the flags stored in the EFER register, and a `Msr::i32_efer` constructor for accessing the EFER. This is necessary for application processor bringup, and was factored out from PR #371.
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This ensures that the build script is re-run if the hello world wasm or the target spec change.
Currently, some code in `hal-x86_64` depends on `liballoc`, while other code does not. This makes it difficult to use parts of the HAL crate in early boot environments without an allocator. This commit adds an "alloc" feature flag to `hal-x86_64`, which enables code that depends on `liballoc`. This commit was factored out of #371.
Currently, TSS segments can only be constructed from statics. This makes it difficult to construct a TSS dynamically when bringing up an application processor. This commit adds a new `SystemSegment::boxed_tss` constructor, which allows TSS segments to be dynamically allocated, as well as stored in a static. This was factored out of PR #371.
This commit adds support for the IA32_EFER model-specific register in the `hal-x86_64` crate's `cpu::msr` module. This includes a new `Efer` bitflags type representing the flags stored in the EFER register, and a `Msr::i32_efer` constructor for accessing the EFER. This is necessary for application processor bringup, and was factored out from PR #371.
This ensures that the build script is re-run if the hello world wasm or the target spec change.
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hawkw
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Currently, some code in `hal-x86_64` depends on `liballoc`, while other code does not. This makes it difficult to use parts of the HAL crate in early boot environments without an allocator. This commit adds an "alloc" feature flag to `hal-x86_64`, which enables code that depends on `liballoc`. This commit was factored out of #371.
hawkw
added a commit
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this pull request
Nov 16, 2022
Currently, TSS segments can only be constructed from statics. This makes it difficult to construct a TSS dynamically when bringing up an application processor. This commit adds a new `SystemSegment::boxed_tss` constructor, which allows TSS segments to be dynamically allocated, as well as stored in a static. This was factored out of PR #371.
hawkw
added a commit
that referenced
this pull request
Nov 16, 2022
This commit adds support for the IA32_EFER model-specific register in the `hal-x86_64` crate's `cpu::msr` module. This includes a new `Efer` bitflags type representing the flags stored in the EFER register, and a `Msr::i32_efer` constructor for accessing the EFER. This is necessary for application processor bringup, and was factored out from PR #371.
hawkw
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Nov 16, 2022
This ensures that the build script is re-run if the hello world wasm or the target spec change.
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This branch cherry-picks smaller, self-contained changes from PR #371