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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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94dd54c51a
Trying VMAP_STACK with KVM, vmlinux was not starting. This was due to SRR0 and SRR1 clobbered by an ISI due to the rfi being in a different page than the mtsrr0/1: c0003fe0 <mmu_off>: c0003fe0: 38 83 00 54 addi r4,r3,84 c0003fe4: 7c 60 00 a6 mfmsr r3 c0003fe8: 70 60 00 30 andi. r0,r3,48 c0003fec: 4d 82 00 20 beqlr c0003ff0: 7c 63 00 78 andc r3,r3,r0 c0003ff4: 7c 9a 03 a6 mtsrr0 r4 c0003ff8: 7c 7b 03 a6 mtsrr1 r3 c0003ffc: 7c 00 04 ac hwsync c0004000: 4c 00 00 64 rfi Align the 4 instruction block used to deactivate MMU to order 4, so that the block never crosses a page boundary. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/30d2cda111b7977227fff067fa7e358440e2b3a4.1576916812.git.christophe.leroy@c-s.fr |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
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. 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.