Re: [Xen-devel] [PATCH v2 0/3] x86emul: VME/PVI mode fixes

2018-11-06 Thread Jan Beulich
>>> On 06.11.18 at 15:21, wrote: > On 06/11/18 13:33, Jan Beulich wrote: >> 1: skip VIF processing in VME mode for 16-bit POPF at IOPL 3 >> 2: raise #GP(0) in VME mode for POPF with TF set in new value > > I'm afraid that I think there is still a bug with PVI emulation. > > We only ever read

Re: [Xen-devel] [PATCH v2 0/3] x86emul: VME/PVI mode fixes

2018-11-06 Thread Andrew Cooper
On 06/11/18 13:33, Jan Beulich wrote: > 1: skip VIF processing in VME mode for 16-bit POPF at IOPL 3 > 2: raise #GP(0) in VME mode for POPF with TF set in new value I'm afraid that I think there is still a bug with PVI emulation. We only ever read cr4 when operating in vm86, which means that the

[Xen-devel] [PATCH v2 0/3] x86emul: VME/PVI mode fixes

2018-11-06 Thread Jan Beulich
1: skip VIF processing in VME mode for 16-bit POPF at IOPL 3 2: raise #GP(0) in VME mode for POPF with TF set in new value 3: consolidate CR4 handling Jan ___ Xen-devel mailing list Xen-devel@lists.xenproject.org