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c30578feeb
freebsd-nq/sys/amd64/vmm
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Konstantin Belousov c30578feeb Provide part of the mitigation for L1TF-VMM. 
On the guest entry in bhyve, flush L1 data cache, using either L1D
flush command MSR if available, or by reading enough uninteresting
data to fill whole cache.

Flush is automatically enabled on CPUs which do not report RDCL_NO,
and can be disabled with the hw.vmm.l1d_flush tunable/kenv.

Security:	CVE-2018-3646
Reviewed by:	emaste. jhb, Tony Luck <tony.luck@intel.com>
Sponsored by:	The FreeBSD Foundation
2018-08-14 17:29:41 +00:00
..
amd Add SPDX tags to vmm(4). 2018-06-13 07:02:58 +00:00
intel Provide part of the mitigation for L1TF-VMM. 2018-08-14 17:29:41 +00:00
io Add SPDX tags to vmm(4). 2018-06-13 07:02:58 +00:00
vmm_dev.c - Add the ability to run bhyve(8) within a jail(8). 2018-08-01 00:39:21 +00:00
vmm_host.c Correct undesirable interaction between caching of %cr4 in bhyve and 2018-04-24 13:44:19 +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 Add a new variant of the GLA2GPA ioctl for use by the debug server. 2018-02-26 19:19:05 +00:00
vmm_ioport.c Add SPDX tags to vmm(4). 2018-06-13 07:02:58 +00:00
vmm_ioport.h Add SPDX tags to vmm(4). 2018-06-13 07:02:58 +00:00
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 vmmdev: return EFAULT when trying to read beyond VM system memory max address 2018-05-15 17:20:58 +00:00
x86.c Add the ability to control the CPU topology of created VMs 2018-04-08 19:24:49 +00:00
x86.h sys/amd64: further adoption of SPDX licensing ID tags. 2017-11-27 15:03:07 +00:00