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91fe5fe7e7
freebsd-dev/sys/amd64/vmm
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Tycho Nightingale 91fe5fe7e7 Provide some mitigation against CVE-2017-5715 by clearing registers 
upon returning from the guest which aren't immediately clobbered by
the host.  This eradicates any remaining guest contents limiting their
usefulness in an exploit gadget.

This was inspired by this linux commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5b6c02f38315b720c593c6079364855d276886aa

Reviewed by:	grehan, rgrimes
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D13573
2018-01-15 18:37:03 +00:00
..
amd Provide some mitigation against CVE-2017-5715 by clearing registers 2018-01-15 18:37:03 +00:00
intel Provide some mitigation against CVE-2017-5715 by clearing registers 2018-01-15 18:37:03 +00:00
io sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_dev.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_host.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_host.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_instruction_emul.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_ioport.c
vmm_ioport.h
vmm_ktr.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_lapic.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_lapic.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_mem.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_mem.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_stat.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_stat.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
vmm_util.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm_util.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
vmm.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
x86.c sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00
x86.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00