[v2.7] X86: direct MSI message to proper processor #43690
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added 2 commits
March 11, 2022 09:24
This will centralize CPUID related accessors. There was no need for it so far, but this is going to change. Signed-off-by: Tomasz Bursztyka <[email protected]>
Depending on whether X2APIC is enabled or not, it will be safer to grab such ID from the right place. Signed-off-by: Tomasz Bursztyka <[email protected]>
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Mar 13, 2022
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@tbursztyka - please create an issue for the backport. |
When Zephyr runs directly on actual hardware, it will be always directing MSI messages to BSP (BootStrap Processor). This was fine until Zephyr could be ran on virtualizor that may NOT run it on BSP. So directing MSI messages on current processor. If Zephyr runs on actual hardware, it will be BSP since such setup is always made at boot time by the BSP. On other use case it will be whatever is relevant at that time. Fixes zephyrproject-rtos#43853 Signed-off-by: Tomasz Bursztyka <[email protected]>
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@cfriedt done, I added the "Fixes" line in last commit |
@tbursztyka @cfriedt GitHub doesn't recognize such references in commit messages. It works only by chance for single-commit PRs, since the message is replicated in the PR description (which is, AFAIK, the only place where those references are recognized). You can see this by the fact that as of writing this message the issue still isn't closed, even though this PR got merged. |
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#43853 is the issue ID by the looks of it |
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Backport of #42480 to 2.7.
Fixes #43853