search for: callbacktype_syscall

...x86/x86_64/compat/traps.c 2007-07-04 12:13:16.000000000 +0200 +++ 2007-08-08/xen/arch/x86/x86_64/compat/traps.c 2007-08-08 11:37:08.000000000 +0200 @@ -163,12 +163,35 @@ static long compat_register_guest_callba &v->arch.guest_context.flags); break; + case CALLBACKTYPE_syscall: + v->arch.syscall32_callback_cs = reg->address.cs; + v->arch.syscall32_callback_eip = reg->address.eip; + v->arch.syscall32_disables_events = + (reg->flags & CALLBACKF_mask_events) != 0; + if ( v->arch.syscall32_callback_cs &am...

...t kernel unconditionally goes for >>sysenter, and the hypervisor will accept this because CPUID has advertised >>SEP. *But* AMD CPUs do not support sysenter except in legacy mode! The >>correct thing to do is to use syscall. The hypervisor 32-on-64 compat code >>would accept CALLBACKTYPE_syscall, but the Linux i386 code here doesn''t >>appear to make use of it. So I would imagine that the i386 kernel running on >>AMD hardware would cause all user processes to crash when they SYSENTER. > >I intentionally avoided adding syscall stuff to the 32-bit kernel, since that...

Hi Ingo, Here''s the chunk of patches to add Xen Dom0 support (it''s probably worth creating a new xen/dom0 topic branch for it). A dom0 Xen domain is basically the same as a normal domU domain, but it has extra privileges to directly access hardware. There are two issues to deal with: - translating to and from the domain''s pseudo-physical addresses and real machine

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it