Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

start on SMP bringup #347

Merged
merged 6 commits into from
Oct 14, 2022
Merged

start on SMP bringup #347

merged 6 commits into from
Oct 14, 2022

Commits on Oct 14, 2022

  1. feat(x86_64): implement acpi's glue trait 

    This commit implements the `AcpiHandler` glue trait from the `acpi`
crate to allow using `acpi` in the kernel. This trait is responsible for
mapping physical memory regions that contain ACPI tables.

In this case, we know these memory regions are identity mapped, so we
don't actually have to map and unmap pages in order to implement this
trait. Instead, we just have to calculate the virtual address based on
the kernel's virtual memory offset and tell the `acpi` crate to use that
region.
    @hawkw
    hawkw committed Oct 14, 2022
    Configuration menu
    Copy the full SHA
    f44641b View commit details
    Browse the repository at this point in the history

  2. style(x86_64): split up arch::x86_64 into mods (#347) 

    The `x86_64.rs` file has just kind of been a dumping ground for random
arch stuff for a while. This commit pulls out the `bootloader` crate
glue code and the tests into separate files.
    @hawkw
    hawkw committed Oct 14, 2022
    Configuration menu
    Copy the full SHA
    e130ddd View commit details
    Browse the repository at this point in the history

  3. feat(x86_64): read ACPI table SMP info (#347) 

    This commit starts on #345 by using the `acpi` crate to read information
from the ACPI tables related to SMP. It adds an `acpi::bringup_smp`
function in `arch::x86_64`, but this function doesn't *currently*
actually bring up application processors. Instead, it just reads data
from the ACPI tables and logs it as a way to check that we are, in fact,
able to find the information we need.

Additionally, I added a new `ArchInfo` struct that contains opaque
architecture-specific data from the bootloader's boot info. This is
passed into the `kernel_start` function, but the cross-platform kernel
code doesn't consume it --- instead, it's just provided so it can be
passed back into `arch_init` once we've done cross-platform setup stuff.
This felt better than sticking the RSDP addr in a global variable or
something...

This is a first step towards #345. Future commits will actually switch
to IOAPIC interrupt handling and then start the application processors.
    @hawkw
    hawkw committed Oct 14, 2022
    Configuration menu
    Copy the full SHA
    4c348fe View commit details
    Browse the repository at this point in the history

  4. feat(inoculate): configure QEMU with SMP (#347)

    @hawkw
    hawkw committed Oct 14, 2022
    Configuration menu
    Copy the full SHA
    cab7e50 View commit details
    Browse the repository at this point in the history

  5. feat(x86_64): nicer tracing processor info (#347)

    @hawkw
    hawkw committed Oct 14, 2022
    Configuration menu
    Copy the full SHA
    a3c1b30 View commit details
    Browse the repository at this point in the history

  6. Merge branch 'main' into eliza/smp-bringup

    @hawkw
    hawkw authored Oct 14, 2022
    Configuration menu
    Copy the full SHA
    abe0d00 View commit details
    Browse the repository at this point in the history