8464c8842d
The H_PROD hypercall is supposed to wake up an idle vcpu. We have an implementation, but because Linux doesn't use it except when doing cpu hotplug, it was never tested properly. AIX does use it, and reported it broken. It turns out we were waking the wrong vcpu (the one doing H_PROD, not the target of the prod) and we weren't handling the case where the target needs an IPI to wake it. Fix it by using the existing kvmppc_fast_vcpu_kick_hv() function, which is intended for this kind of thing, and by using the target vcpu not the current vcpu. We were also not looking at the prodded flag when checking whether a ceded vcpu should wake up, so this adds checks for the prodded flag alongside the checks for pending exceptions. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.