Re: [PATCH 1/5] x86/HVM: wire up multicalls

2021-06-18 Thread Jan Beulich
On 18.06.2021 15:02, Andrew Cooper wrote: > On 18/06/2021 11:23, Jan Beulich wrote: >> To be able to use them from, in particular, the tool stack, they need to >> be supported for all guest types. Note that xc_resource_op() already >> does, so would not work without this on PVH Dom0. > > I'm not a

Re: [PATCH 1/5] x86/HVM: wire up multicalls

2021-06-18 Thread Andrew Cooper
On 18/06/2021 11:23, Jan Beulich wrote: > To be able to use them from, in particular, the tool stack, they need to > be supported for all guest types. Note that xc_resource_op() already > does, so would not work without this on PVH Dom0. I'm not a fan of multicalls as a concept - they're mostly a

[PATCH 1/5] x86/HVM: wire up multicalls

2021-06-18 Thread Jan Beulich
To be able to use them from, in particular, the tool stack, they need to be supported for all guest types. Note that xc_resource_op() already does, so would not work without this on PVH Dom0. Signed-off-by: Jan Beulich --- a/xen/arch/x86/hvm/hypercall.c +++ b/xen/arch/x86/hvm/hypercall.c @@ -26,