]> xenbits.xensource.com Git - xen.git/commit
x86: ignore guest microcode loading attempts
authorJan Beulich <jbeulich@suse.com>
Fri, 16 Mar 2018 16:14:51 +0000 (17:14 +0100)
committerJan Beulich <jbeulich@suse.com>
Fri, 16 Mar 2018 16:14:51 +0000 (17:14 +0100)
commitcee48d83cb5a7023c4bde93bbb5d42f8c110579d
tree99209d657089555367fbe329d14d0bf66eec85f3
parent20db434e90fd7ecd24cabdbc82b926f41bb04f51
x86: ignore guest microcode loading attempts

The respective MSRs are write-only, and hence attempts by guests to
write to these are - as of 1f1d183d49 ("x86/HVM: don't give the wrong
impression of WRMSR succeeding") no longer ignored. Restore original
behavior for the two affected MSRs.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
master commit: 59c0983e10d70ea2368085271b75fb007811fe52
master date: 2018-03-15 12:44:24 +0100
xen/arch/x86/msr.c