On Sat, 2017-05-06 at 11:04 +0200, Paolo Bonzini wrote: > > > On 05/05/2017 20:17, Ricardo Neri wrote: > > User-Mode Instruction Prevention is a security feature present in > new > > Intel processors that, when set, prevents the execution of a subset > of > > instructions if such instructions are executed in user mode (CPL > > 0). > > Attempting to execute such instructions causes a general protection > > exception. > > > > The subset of instructions comprises: > > > > * SGDT - Store Global Descriptor Table > > * SIDT - Store Interrupt Descriptor Table > > * SLDT - Store Local Descriptor Table > > * SMSW - Store Machine Status Word > > * STR - Store Task Register > > > > This feature is also added to the list of disabled-features to allow > > a cleaner handling of build-time configuration. > > > > Cc: Andy Lutomirski <[email protected]> > > Cc: Andrew Morton <[email protected]> > > Cc: H. Peter Anvin <[email protected]> > > Cc: Borislav Petkov <[email protected]> > > Cc: Brian Gerst <[email protected]> > > Cc: Chen Yucong <[email protected]> > > Cc: Chris Metcalf <[email protected]> > > Cc: Dave Hansen <[email protected]> > > Cc: Fenghua Yu <[email protected]> > > Cc: Huang Rui <[email protected]> > > Cc: Jiri Slaby <[email protected]> > > Cc: Jonathan Corbet <[email protected]> > > Cc: Michael S. Tsirkin <[email protected]> > > Cc: Paul Gortmaker <[email protected]> > > Cc: Peter Zijlstra <[email protected]> > > Cc: Ravi V. Shankar <[email protected]> > > Cc: Shuah Khan <[email protected]> > > Cc: Vlastimil Babka <[email protected]> > > Cc: Tony Luck <[email protected]> > > Cc: Paolo Bonzini <[email protected]> > > Cc: Liang Z. Li <[email protected]> > > Cc: Alexandre Julliard <[email protected]> > > Cc: Stas Sergeev <[email protected]> > > Cc: [email protected] > > Cc: [email protected] > > > > Signed-off-by: Ricardo Neri <[email protected]> > > Would it be possible to have this patch in a topic branch for KVM's > consumption? > I have put a branch here with this single patch:
https://github.com/ricardon/tip.git rneri/umip_for_kvm This is based on Linux v4.11. Please let me know if this works for your or you'd prefer it to be based on a different branch/commit/repo. Thanks and BR, Ricardo -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
