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9617a0b335
Currently, PR KVM does not implement the configure_mmu operation, and so the KVM_PPC_CONFIGURE_V3_MMU ioctl always fails with an EINVAL error. This causes recent kernels to fail to boot as a PR KVM guest on POWER9, since recent kernels booted in HPT mode do the H_REGISTER_PROC_TBL hypercall, which causes userspace (QEMU) to do KVM_PPC_CONFIGURE_V3_MMU, which fails. This implements a minimal configure_mmu operation for PR KVM. It succeeds only if the MMU is being configured for HPT mode and no process table is being registered. This is enough to get recent kernels to boot as a PR KVM guest. Reviewed-by: Greg Kurz <groug@kaod.org> Tested-by: Greg Kurz <groug@kaod.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> |
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| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
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.