Hi Anthony, Xu, Anthony writes: > >> - if (phy_pte.ma != VA_MATTR_NATPAGE) > >> + /* if a device is assigned to a domain through VTD, the MMIO > >> for this + * device needs to retain to UC attribute > >> + */ > >> + if (phy_pte.ma == VA_MATTR_WC) > >> phy_pte.ma = VA_MATTR_WB; > >> > > > > Doesn't this break the intention of the c/s 15134:466f71b1e831?a > > To be honest, I'm not sure. Kyouya or Akio, do you have any comments? > > > This section is not included, need kyouya or akio confirmation.
I applied only this hunk and tried invoking HVMs (windows2003 and RHEL5.1). In both of them, the system silently rebooted. The following Machine Check occurred. BUS Check Info  Transaction size: 0, Internal Bus Error:, Type: 1 (Partial read), Severity: 0, Hierarchy: 0, Status information: 0 (Unknown/unclassified) CPUID Regs: 0x49656e69756e6547 0x6c65746e 0 0x20000504 I have no idea what's going on, though my machine might be ill-conditioned. Have you tested it? -- Kouya _______________________________________________ Xen-ia64-devel mailing list Xenfirstname.lastname@example.org http://lists.xensource.com/xen-ia64-devel