freebsd-nq/sys/amd64
Konstantin Belousov 6f2d9906a9 The check to ensure that xstate_bv always has XFEATURE_ENABLED_X87 and
XFEATURE_ENABLED_SSE bits set is not needed.  CPU correctly handles
any bitmask which is subset of the enabled bits in %XCR0.

More, CPU instructions XSAVE and XSAVEOPT could write the mask without
e.g. XFEATURE_ENABLED_SSE, after the VZEROALL.  The check prevents the
restoration of the otherwise valid FPU save area.

In collaboration with:	jhb
MFC after:	1 week
2013-05-01 20:03:50 +00:00
..
acpica Consistently use round_page(x) rather than roundup(x, PAGE_SIZE). There is 2013-02-15 22:43:08 +00:00
amd64 The check to ensure that xstate_bv always has XFEATURE_ENABLED_X87 and 2013-05-01 20:03:50 +00:00
compile
conf Add a new driver to support the Intel Non-Transparent Bridge(NTB). 2013-04-29 22:48:53 +00:00
ia32 Real hardware, as opposed to QEMU, does not allow to have a call gate 2012-08-14 12:13:27 +00:00
include Add RIP-relative addressing to the instruction decoder. 2013-04-25 04:56:43 +00:00
linux32 Reduce duplication between i386/linux/linux.h and amd64/linux32/linux.h 2013-01-29 18:41:30 +00:00
pci Remove duplicate code. Reduce diff between amd64 and i386. 2012-12-01 00:56:19 +00:00
vmm Add RIP-relative addressing to the instruction decoder. 2013-04-25 04:56:43 +00:00
Makefile