AuxXxilium/linux_dsm_epyc7002
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71ed49d8fb
linux_dsm_epyc7002/arch/x86
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Thomas Gleixner 71ed49d8fb x86/entry: Make NMI use IDTENTRY_RAW 
For no reason other than beginning brainmelt, IDTENTRY_NMI was mapped to
IDTENTRY_IST.

This is not a problem on 64bit because the IST default entry point maps to
IDTENTRY_RAW which does not any entry handling. The surplus function
declaration for the noist C entry point is unused and as there is no ASM
code emitted for NMI this went unnoticed.

On 32bit IDTENTRY_IST maps to a regular IDTENTRY which does the normal
entry handling. That is clearly the wrong thing to do for NMI.

Map it to IDTENTRY_RAW to unbreak it. The IDTENTRY_NMI mapping needs to
stay to avoid emitting ASM code.

Fixes: 6271fef00b ("x86/entry: Convert NMI to IDTENTRY_NMI")
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Debugged-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/CA+G9fYvF3cyrY+-iw_SZtpN-i2qA2BruHg4M=QYECU2-dNdsMw@mail.gmail.com
2020-06-12 14:15:48 +02:00
..
boot mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
configs
crypto There are a lot of objtool changes in this cycle, all across the map: 2020-06-01 13:13:00 -07:00
entry x86/entry: Unbreak __irqentry_text_start/end magic 2020-06-11 15:15:29 +02:00
events mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
hyperv x86/entry: Convert various hypervisor vectors to IDTENTRY_SYSVEC 2020-06-11 15:15:15 +02:00
ia32 Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-06-04 14:07:08 -07:00
include x86/entry: Make NMI use IDTENTRY_RAW 2020-06-12 14:15:48 +02:00
kernel x86/entry: Make NMI use IDTENTRY_RAW 2020-06-12 14:15:48 +02:00
kvm x86/entry: Optimize local_db_save() for virt 2020-06-11 15:15:22 +02:00
lib X86 timer specific updates: 2020-06-03 10:18:09 -07:00
math-emu
mm x86/entry: Treat BUG/WARN as NMI-like entries 2020-06-12 12:12:57 +02:00
net
oprofile
pci Merge branch 'pci/virtualization' 2020-06-04 12:59:13 -05:00
platform x86/entry: Convert various system vectors 2020-06-11 15:15:14 +02:00
power mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
purgatory
ras
realmode mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
tools
um mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
video
xen xen: Move xen_setup_callback_vector() definition to include/xen/hvm.h 2020-06-11 15:15:19 +02:00
.gitignore
Kbuild
Kconfig x86/entry: Use idtentry for interrupts 2020-06-11 15:15:12 +02:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined 2020-06-03 20:09:50 -07:00
Makefile
Makefile_32.cpu
Makefile.um