projects / xen.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 5a88f6f) | patch
x86/hvm: Forced Emulation Prefix for debug builds of Xen
authorAndrew Cooper <andrew.cooper3@citrix.com>
Thu, 25 Sep 2014 10:06:24 +0000 (12:06 +0200)
committerJan Beulich <jbeulich@suse.com>
Thu, 25 Sep 2014 10:06:24 +0000 (12:06 +0200)
commit1efde771adb6685dcf6fa7e3c4889dee863c950f
treed851c09b5389e6a115e30b5e47d1a67aedecfb32tree | snapshot
parent5a88f6fede9af886bc4a32cf1b3cf7c36ef7baadcommit | diff
x86/hvm: Forced Emulation Prefix for debug builds of Xen

Analysis of XSAs 105 and 106 show that is possible to force a race condition
which causes any arbitrary instruction to be emulated.

To aid testing, explicitly introduce the Forced Emulation Prefix for debug
builds alone.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
docs/misc/xen-command-line.markdown diff | blob | history
xen/arch/x86/hvm/hvm.c diff | blob | history
xen/arch/x86/hvm/svm/svm.c diff | blob | history
xen/arch/x86/hvm/vmx/vmx.c diff | blob | history
xen/include/asm-x86/hvm/hvm.h diff | blob | history
Unnamed repository; edit this file 'description' to name the repository.