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opnsense-src/sys/amd64/include
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Corvin Köhne f195c503ad vmm: add tunable to trap WBINVD 
x86 is cache coherent. However, there are special cases where cache
coherency isn't ensured (e.g. when switching the caching mode). In these
cases, WBINVD can be used. WBINVD writes all cache lines back into main
memory and invalidates the whole cache.

Due to the invalidation of the whole cache, WBINVD is a very heavy
instruction and degrades the performance on all cores. So, we should
minimize the use of WBINVD as much as possible.

In a virtual environment, the WBINVD call is mostly useless. The guest
isn't able to break cache coherency because he can't switch the physical
cache mode. When using pci passthrough WBINVD might be useful.

Nevertheless, trapping and ignoring WBINVD is an unsafe operation. For
that reason, we implement it as tunable.

Reviewed by:	jhb
Sponsored by:	Beckhoff Automation GmbH & Co. KG
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D35253

(cherry picked from commit 3ba952e1a2)
2022-06-20 17:05:36 +02:00
..
pc smbios: Move smbios driver out from x86 machdep code 2022-03-03 08:20:07 -06:00
xen xen/privcmd: implement the dm op ioctl 2021-01-11 16:33:27 +01:00
_align.h
_bus.h Regularize my copyright notice 2019-12-04 16:56:11 +00:00
_inttypes.h
_limits.h Copy amd64 _limits.h to x86 and merge with i386 _limits.h. Replace 2012-02-28 18:24:28 +00:00
_stdint.h Copy amd64 _stdint.h to x86 and merge with i386 _stdint.h. Replace 2012-02-28 18:38:33 +00:00
_types.h Copy amd64 _types.h to x86 and merge with i386 _types.h. Replace existing 2012-02-28 18:15:28 +00:00
acpica_machdep.h Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these 2013-08-13 22:05:10 +00:00
apm_bios.h
asan.h amd64: Implement a KASAN shadow map 2021-11-01 09:57:30 -04:00
asm.h amd64: Add CFI directives for libc syscall stubs 2019-10-23 19:03:03 +00:00
asmacros.h amd64: prevents speculations over swapgs reload of %gs base. 2019-08-06 16:53:25 +00:00
atomic.h x86 atomic.h: remove obsoleted comment 2022-02-11 12:52:55 +02:00
bus.h
bus_dma.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
clock.h x86: Deduplicate clock.h 2021-12-27 10:48:00 -05:00
counter.h amd64: provide custom zpcpu set/add/sub routines 2020-02-12 11:15:33 +00:00
cpu.h Simplify swi for bus_dma. 2022-04-29 14:27:47 -07:00
cpufunc.h x86: cpufunc: Add rdtsc_ordered() 2021-10-10 12:21:16 +03:00
cputypes.h Remove 'cpu' and 'cpu_class' on amd64. 2016-09-15 17:05:54 +00:00
csan.h Add kcsan_md_unsupported from NetBSD. 2019-11-21 13:22:23 +00:00
db_machdep.h Create sys/reg.h for the common code previously in machine/reg.h 2022-05-12 15:12:59 -07:00
dump.h Factor out duplicated code from dumpsys() on each architecture into generic 2015-01-07 01:01:39 +00:00
efi.h smbios: support getting address from EFI 2022-03-03 08:20:07 -06:00
elf.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
endian.h Copy amd64 endian.h to x86 and merge with i386 endian.h. Replace 2012-02-28 19:39:54 +00:00
exec.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
fdt.h Add basic support for FDT to i386 & amd64. This change includes: 2013-05-21 03:05:49 +00:00
float.h Copy amd64 float.h to x86 and merge with i386 float.h. Replace 2012-03-04 14:00:32 +00:00
floatingpoint.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
fpu.h Add domain policy allocation for amd64 fpu_kern_ctx 2020-07-03 14:54:46 +00:00
frame.h Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights 2022-02-08 15:00:55 -05:00
gdb_machdep.h gdb: report specific stop reason for watchpoints 2021-04-21 10:20:33 -03:00
ieeefp.h Resolve conflicts between macros in fenv.h and ieeefp.h 2018-05-31 20:22:47 +00:00
in_cksum.h x86: Remove silly checks for <sys/cdefs.h>. 2022-05-13 13:12:26 -07:00
intr_machdep.h amd64: Make it easier to configure exception stack sizes 2020-11-04 16:42:20 +00:00
iodev.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
iommu.h o Add machine/iommu.h and include MD iommu headers from it, 2020-08-05 19:11:31 +00:00
kdb.h x86: implement kdb watchpoint functions 2021-04-21 10:20:33 -03:00
limits.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
md_var.h amd64: do not assume that kernel is loaded at 2M physical 2021-08-24 02:21:13 +03:00
memdev.h Add the MEM_EXTRACT_PADDR ioctl to /dev/mem. 2020-09-02 18:12:47 +00:00
metadata.h Move amd64 metadata.h to x86 and share with i386 2016-01-07 19:47:26 +00:00
minidump.h Sparsify the vm_page_dump bitmap 2020-09-21 22:21:59 +00:00
mp_watchdog.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
nexusvar.h
npx.h Move userland bits of i386 npx.h and amd64 fpu.h to x86 fpu.h. 2012-03-16 20:24:30 +00:00
ofw_machdep.h Add basic support for FDT to i386 & amd64. This change includes: 2013-05-21 03:05:49 +00:00
param.h amd64: Add MD bits for KASAN 2021-11-01 10:02:41 -04:00
pcb.h Fix for mis-interpretation of PCB_KERNFPU. 2020-10-14 23:01:41 +00:00
pci_cfgreg.h
pcpu.h amd64 pmap: convert to counter(9), add PV and pagetable page counts 2021-09-01 09:29:01 -04:00
pcpu_aux.h amd64: move pcb out of kstack to struct thread. 2019-10-25 20:09:42 +00:00
pmap.h amd64: Reduce the amount of cpuset copying done for TLB shootdowns 2021-12-15 08:31:48 -05:00
pmc_mdep.h hwpmc: ABI fixes 2018-06-04 02:05:48 +00:00
ppireg.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
proc.h Revert "linux32: add a hack to avoid redefining the type of the savefpu tag" 2021-10-10 12:21:17 +03:00
procctl.h amd64 KPTI: add control from procctl(2). 2019-03-16 11:44:33 +00:00
profile.h Fix high resolution kernel profiling just enough to not crash at boot 2018-06-02 05:48:44 +00:00
psl.h Copy i386 psl.h to x86 and replace amd64/i386/pc98 psl.h with stubs. 2012-03-19 21:29:57 +00:00
ptrace.h Copy amd64 ptrace.h to x86 and merge with i386 ptrace.h. Replace 2012-03-04 20:24:28 +00:00
pvclock.h Generalized parts of the XEN timer code into a generic pvclock 2015-02-04 08:26:43 +00:00
reg.h Copy i386 reg.h to x86 and merge with amd64 reg.h. Replace i386/amd64/pc98 2012-03-18 19:06:38 +00:00
reloc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
resource.h Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge 2014-02-12 04:30:37 +00:00
runq.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
segments.h amd64: move GDT into PCPU area. 2019-11-12 15:51:47 +00:00
setjmp.h Copy amd64 setjmp.h to x86 and replace amd64/i386/pc98 setjmp.h with stubs. 2012-02-28 22:17:52 +00:00
sf_buf.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
sgx.h Add support for Intel Software Guard Extensions (Intel SGX). 2017-08-16 10:38:06 +00:00
sgxreg.h Add support for Intel Software Guard Extensions (Intel SGX). 2017-08-16 10:38:06 +00:00
sigframe.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
signal.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
smp.h amd64: rework AP startup 2021-08-24 02:21:12 +03:00
specialreg.h Copy i386 specialreg.h to x86 and merge with amd64 specialreg.h. Replace 2012-03-19 21:34:11 +00:00
stack.h Merge stack(9) implementations for i386 and amd64 under x86/. 2015-09-11 03:24:07 +00:00
stdarg.h Copy amd64 stdarg.h to x86 and replace amd64/i386/pc98 stdarg.h with stubs. 2012-02-28 22:30:58 +00:00
sysarch.h Copy amd64 sysarch.h to x86 and merge with i386 sysarch.h. Replace 2012-03-19 21:57:31 +00:00
timerreg.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
tls.h Add <machine/tls.h> header to hold MD constants and helpers for TLS. 2022-04-29 13:50:05 -07:00
trap.h Copy amd64 trap.h to x86 and replace amd64/i386/pc98 trap.h with stubs. 2012-03-04 14:12:57 +00:00
tss.h amd64: move common_tss into pcpu. 2019-11-10 09:28:18 +00:00
ucontext.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
vdso.h Implement mechanism to export some kernel timekeeping data to 2012-06-22 07:06:40 +00:00
vm.h Create VM_MEMATTR_DEVICE on all architectures 2021-06-13 16:49:36 +01:00
vmm.h vmm: add tunable to trap WBINVD 2022-06-20 17:05:36 +02:00
vmm_dev.h Extend the VMM stats interface to support a dynamic count of statistics. 2022-04-29 16:08:17 -07:00
vmm_instruction_emul.h bhyve(8): For prototyping, reattempt decode in userspace 2020-06-25 00:18:42 +00:00
vmm_snapshot.h amd64: clean up empty lines in .c and .h files 2020-09-01 21:16:54 +00:00
vmparam.h amd64: provide PHYS_IN_DMAP() and VIRT_IN_DMAP() 2021-12-03 10:02:02 -04:00