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opnsense-src/sys/amd64/include
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Corvin Köhne 3ba952e1a2 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
2022-05-30 10:04:22 +02:00
..
pc smbios: Move smbios driver out from x86 machdep code 2021-02-23 21:17:09 +00:00
xen xen: Prevent buffer overflow in privcmd ioctl 2022-05-06 09:31:32 +02:00
_align.h
_bus.h Regularize my copyright notice 2019-12-04 16:56:11 +00:00
_inttypes.h
_limits.h
_stdint.h
_types.h
acpica_machdep.h
apm_bios.h
asan.h amd64: Implement a KASAN shadow map 2021-04-13 17:42:20 -04:00
asm.h amd64: Add CFI directives for libc syscall stubs 2019-10-23 19:03:03 +00:00
asmacros.h amd64: Add MD bits for KMSAN 2021-08-10 21:27:53 -04:00
atomic.h Remove checks for <sys/cdefs.h> being included. 2022-04-12 10:06:18 -07:00
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 2021-12-06 10:39:08 -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. 2021-12-28 13:51:25 -08:00
cpufunc.h Remove checks for <sys/cdefs.h> being included. 2022-04-12 10:06:18 -07:00
cputypes.h
csan.h Limit when we call DELAY from KCSAN on amd64 2021-02-25 12:38:05 +00:00
db_machdep.h Create sys/reg.h for the common code previously in machine/reg.h 2021-08-30 12:50:53 +01:00
dump.h
efi.h Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights 2021-08-08 10:42:24 -04:00
elf.h
endian.h
exec.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
fdt.h
float.h
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 amd64: centralize definitions of CS_SECURE and EFL_SECURE 2021-09-21 20:20:14 +03:00
gdb_machdep.h gdb: report specific stop reason for watchpoints 2021-03-30 11:36:41 -03:00
ieeefp.h Remove checks for __GNUCLIKE_ASM assuming it is always true. 2022-04-12 10:05:45 -07:00
in_cksum.h machine/in_cksum.h: don't include sys/cdefs.h 2022-04-18 21:02:19 +01:00
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 2021-03-29 12:05:43 -03:00
limits.h Remove checks for __CC_SUPPORTS_WARNING assuming it is always true. 2022-04-12 10:06:13 -07:00
md_var.h Unstaticize {get,set}_fpcontext() on amd64 2022-01-04 13:25:12 +00:00
memdev.h Add the MEM_EXTRACT_PADDR ioctl to /dev/mem. 2020-09-02 18:12:47 +00:00
metadata.h
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
msan.h Add the KMSAN runtime 2021-08-10 21:27:53 -04:00
nexusvar.h
npx.h
ofw_machdep.h
param.h amd64: Populate the KMSAN shadow maps and integrate with the VM 2021-08-10 21:27:53 -04:00
pcb.h Fix for mis-interpretation of PCB_KERNFPU. 2020-10-14 23:01:41 +00:00
pci_cfgreg.h
pcpu.h Remove checks for <sys/cdefs.h> being included. 2022-04-12 10:06:18 -07:00
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 2021-11-15 13:01:31 -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 Make struct syscall_args machine independent 2021-12-08 18:45:33 +00:00
procctl.h amd64 KPTI: add control from procctl(2). 2019-03-16 11:44:33 +00:00
profile.h Remove checks for __GNUCLIKE_ASM assuming it is always true. 2022-04-12 10:05:45 -07:00
psl.h
ptrace.h
pvclock.h
reg.h
reloc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
resource.h
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
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
signal.h
smp.h amd64: rework AP startup 2021-07-27 20:11:15 +03:00
specialreg.h
stack.h
stdarg.h
sysarch.h
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. 2021-12-09 13:17:13 -08:00
trap.h
tss.h amd64: move common_tss into pcpu. 2019-11-10 09:28:18 +00:00
ucontext.h
vdso.h
vm.h Create VM_MEMATTR_DEVICE on all architectures 2021-04-12 06:15:31 +00:00
vmm.h vmm: add tunable to trap WBINVD 2022-05-30 10:04:22 +02:00
vmm_dev.h Extend the VMM stats interface to support a dynamic count of statistics. 2022-02-07 14:11:10 -08:00
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() 2021-11-19 15:05:52 -04:00