rhel 7.5 and later kernels have a page offset that is no longer
necessarily 0xffff880000000000, leading to kernel panics if we
use the wrong address
Change-Id: I3572fde1c31303a937855c23fbd3815ce0f96c64
Add similar protection to clear_host_pte than to set_host_vma (see #986)
Also make the page fault handler only skip taking lock if the munmap
happened on the same cpu id
Change-Id: I6d9e68e8f8905b20bb2ccfa72848e04fe6404ab6
This reverts commit 0d3ef65092.
Reason for revert: This fix causes circular dependency with memory_range manipulation and TLB flush. See #1394.
Change-Id: I4774e81ff300c199629e283e538c0a30ad0eeaae
Using a drop-in instead of an extra service avoids having to juggle
between both services (especially since irqbalance_mck did not have a
Conflict=irqbalance.service statement)
That way, we only have a single service to check for (irqbalance.service),
and system administrators should find this less confusing if they normally
rely on irqbalance.
The drop-in is also installed in /run so will automatically disappear in
the event of a linux crash or a reboot without shutting down mckernel
Change-Id: I004f4f25d9ca037e411e0bc91f4555db138ecfef
mcoverlayfs code is now unused (technically should work on top of the
soft emulation but not well tested, and untested unused code is bad).
Remove it.
Left the unshare/bind_mount_recursive code in mcexec in a new
MCEXEC_BIND_MOUNT ifdef (only in config.h.in directly to discourage use.
it disables the ioctl as well, but the main code is still compiled to
keep up to date with linux api changes... although it's using kallsyms
lookup so it does not validate much more than "the symbol still exists")
I honestly think this should go as well (people who would want to use it
are root and could do it manually), but will give up for now.
Change-Id: I832b6a8ab19e24ed67a1a5044b1c6c32381ae0aa
Use lsof to check for processes that still open /dev/mcosX at shutdown
time.
If lsof is not installed then the check is just not done (empty PROCS
result)
If -k is not passed, print a message listing pids of users and exit
(taking bets someone will use that and sed to kill out of mcstop+release
and rerun the stop script instead of passing -k at some point)
Change-Id: Idba7486fdede4990d9885d23f8077f33839daeed
Since arm64 shares the return value with the area of
the first argument, rewriting the return value before
the system call execution completes destroys the first argument.
Change-Id: I959944879254d8dd3a29489a65d8f274d45338e6
Fujitsu: POSTK_DEBUG_ARCH_DEP_110
old gcc versions are stupid with nested structs and need us
to initialize .tickets.head and .tickets.tail in one go
Change-Id: I0d4caf8236066e7edf4a12e3270114132ced9585
These variables cannot be used uninitialized, and newer gcc versions
correctly do not bring the warning up, but this will shut up older ones
Change-Id: I2b2ea9b557196a3e7eea1e04dd1f160bd12d6e54
We do not need two debug.h files.
Take Fujitsu's STATIC_ASSERT over BUILD_BUG_ON because it is more used
Change-Id: If04c17fbb7406ab15fe86267fed8d6da460cec62
Fujitsu: POSTK_DEBUG_ARCH_DEP_9
- arm64: Get TSC corresponding to boot time from IHK.
- x86_64: Calculate the current time using vdso.
Refs: #1186
Fujitsu: POSTK_DEBUG_ARCH_DEP_52
Change-Id: I293ba4bbe5390d50dea44b8a5b7471f59237daff
the application processor trampoline needs the trampoline physical
address to be mapped for the few instructions between loading the
page table and jumping to normal memory area; setup a new pt for them.
Also make it use its stack where it needs to be directly.
With that, x86 can finally remove the 0 page from its init mapping
Change-Id: Iab3f33a2ed22570eeb47b5ab6e068c9a17c25413
