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freebsd-dev/sys/amd64
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Konstantin Belousov c0b5fcf692 Improve FPU Tag Word reconstruction on i386 to indicate register states. 
Improve the code reconstructing en_tw in struct fpreg32 from FXSAVE
results so that all register states are indicated correctly.  The
previous code unconditionally mapped non-empty register state to
'normalized value' constant.  The new code explicitly distinguishes
the 'zero value' and 'special value' constants as well.  This improves
consistency between real FSAVE and translation from FXSAVE, and
ensures that tests using PT_GETFPREGS can rely on a single correct
value independently of the underlying implementation.

PR:	250454
Sponsored by:	The FreeBSD Foundation
Obtained from:	Moritz Systems
Submitted by:	Michał Górny <mgorny@moritz.systems>
Discussed with:	emaste
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D26856
2020-10-21 00:15:12 +00:00
..
acpica amd64: clean up empty lines in .c and .h files 2020-09-01 21:16:54 +00:00
amd64 Simplify preload_dump() condition 2020-10-15 20:21:15 +00:00
cloudabi32 Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
cloudabi64 Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
conf Add a kernel crypto driver using assembly routines from OpenSSL. 2020-10-20 17:50:18 +00:00
ia32 Improve FPU Tag Word reconstruction on i386 to indicate register states. 2020-10-21 00:15:12 +00:00
include amd64 pmap.h: explicitly provide constants values instead of relying 2020-10-16 16:22:32 +00:00
linux Stop calling set_syscall_retval() from linux_set_syscall_retval(). 2020-10-18 16:16:22 +00:00
linux32 Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
pci pci_cfgreg.c: Use io port config access for early boot time. 2019-04-09 18:07:17 +00:00
sgx amd64: clean up empty lines in .c and .h files 2020-09-01 21:16:54 +00:00
vmm vmx: Implement pmap (de)activation in C 2020-10-19 15:24:35 +00:00
Makefile Bring the tags and links entries for amd64 up to date. 2015-10-27 22:59:24 +00:00