Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Jan Beulich
On 04.01.2021 16:45, Roger Pau Monné wrote: > On Mon, Jan 04, 2021 at 04:16:18PM +0100, Jan Beulich wrote: >> On 04.01.2021 15:56, Roger Pau Monné wrote: >>> On Mon, Jan 04, 2021 at 02:43:52PM +0100, Jan Beulich wrote: On 28.12.2020 11:54, Roger Pau Monné wrote: > On Mon, Nov 09, 2020 at 1

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Roger Pau Monné
On Mon, Jan 04, 2021 at 04:16:18PM +0100, Jan Beulich wrote: > On 04.01.2021 15:56, Roger Pau Monné wrote: > > On Mon, Jan 04, 2021 at 02:43:52PM +0100, Jan Beulich wrote: > >> On 28.12.2020 11:54, Roger Pau Monné wrote: > >>> On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: > Now

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Jan Beulich
On 04.01.2021 15:56, Roger Pau Monné wrote: > On Mon, Jan 04, 2021 at 02:43:52PM +0100, Jan Beulich wrote: >> On 28.12.2020 11:54, Roger Pau Monné wrote: >>> On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: Now that the IOMMU for guests can't be enabled "on demand" anymore, th

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Andrew Cooper
On 04/01/2021 14:56, Roger Pau Monné wrote: > On Mon, Jan 04, 2021 at 02:43:52PM +0100, Jan Beulich wrote: >> On 28.12.2020 11:54, Roger Pau Monné wrote: >>> On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: Now that the IOMMU for guests can't be enabled "on demand" anymore, th

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Roger Pau Monné
On Mon, Jan 04, 2021 at 02:43:52PM +0100, Jan Beulich wrote: > On 28.12.2020 11:54, Roger Pau Monné wrote: > > On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: > >> Now that the IOMMU for guests can't be enabled "on demand" anymore, > >> there's also no reason to expose the related CPUI

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2021-01-04 Thread Jan Beulich
On 28.12.2020 11:54, Roger Pau Monné wrote: > On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: >> Now that the IOMMU for guests can't be enabled "on demand" anymore, >> there's also no reason to expose the related CPUID bit "just in case". >> >> Signed-off-by: Jan Beulich > > I'm not

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2020-12-28 Thread Roger Pau Monné
On Mon, Nov 09, 2020 at 11:54:09AM +0100, Jan Beulich wrote: > Now that the IOMMU for guests can't be enabled "on demand" anymore, > there's also no reason to expose the related CPUID bit "just in case". > > Signed-off-by: Jan Beulich I'm not sure this is helpful from a guest PoV. How does the

Re: [PATCH] x86/CPUID: suppress IOMMU related hypervisor leaf data

2020-11-09 Thread Andrew Cooper
On 09/11/2020 10:54, Jan Beulich wrote: > Now that the IOMMU for guests can't be enabled "on demand" anymore, > there's also no reason to expose the related CPUID bit "just in case". > > Signed-off-by: Jan Beulich Acked-by: Andrew Cooper