Re: Arch-neutral name for hardware interrupt support

2021-11-04 Thread Roger Pau Monné
On Wed, Nov 03, 2021 at 10:16:26AM +, Jane Malalane wrote: > On 02/11/2021 08:51, Roger Pau Monné wrote: > > On Mon, Nov 01, 2021 at 10:47:26AM +, Andrew Cooper wrote: > > > Hello, > > > > > > On ARM, the GIC is a hard prerequisite for VMs. > > > > > > I can't remember what the state of R

Re: Arch-neutral name for hardware interrupt support

2021-11-03 Thread Jane Malalane
On 02/11/2021 08:51, Roger Pau Monné wrote: On Mon, Nov 01, 2021 at 10:47:26AM +, Andrew Cooper wrote: Hello, On ARM, the GIC is a hard prerequisite for VMs. I can't remember what the state of RISCV is, but IIRC there is still some debate over how interrupts are expected to work under virt

Re: Arch-neutral name for hardware interrupt support

2021-11-02 Thread Jan Beulich
On 01.11.2021 11:47, Andrew Cooper wrote: > Hello, > > On ARM, the GIC is a hard prerequisite for VMs. > > I can't remember what the state of RISCV is, but IIRC there is still > some debate over how interrupts are expected to work under virt. > > On x86, the story is very different.  PV have no

Re: Arch-neutral name for hardware interrupt support

2021-11-02 Thread Roger Pau Monné
On Mon, Nov 01, 2021 at 10:47:26AM +, Andrew Cooper wrote: > Hello, > > On ARM, the GIC is a hard prerequisite for VMs. > > I can't remember what the state of RISCV is, but IIRC there is still > some debate over how interrupts are expected to work under virt. > > On x86, the story is very di

Re: Arch-neutral name for hardware interrupt support

2021-11-02 Thread Bertrand Marquis
Hi, > On 2 Nov 2021, at 07:16, Alistair Francis wrote: > > On Tue, Nov 2, 2021 at 6:33 AM Stefano Stabellini > wrote: >> >> +Bertrand >> >> On Mon, 1 Nov 2021, Andrew Cooper wrote: >>> Hello, >>> >>> On ARM, the GIC is a hard prerequisite for VMs. >>> >>> I can't remember what the state of

Re: Arch-neutral name for hardware interrupt support

2021-11-02 Thread Alistair Francis
On Tue, Nov 2, 2021 at 6:33 AM Stefano Stabellini wrote: > > +Bertrand > > On Mon, 1 Nov 2021, Andrew Cooper wrote: > > Hello, > > > > On ARM, the GIC is a hard prerequisite for VMs. > > > > I can't remember what the state of RISCV is, but IIRC there is still > > some debate over how interrupts ar

Re: Arch-neutral name for hardware interrupt support

2021-11-01 Thread Bobby Eshleman
On Mon, Nov 01, 2021 at 10:47:26AM +, Andrew Cooper wrote: > Hello, > > On ARM, the GIC is a hard prerequisite for VMs. > > I can't remember what the state of RISCV is, but IIRC there is still > some debate over how interrupts are expected to work under virt. > Yes sir, that addition to the

Re: Arch-neutral name for hardware interrupt support

2021-11-01 Thread Stefano Stabellini
+Bertrand On Mon, 1 Nov 2021, Andrew Cooper wrote: > Hello, > > On ARM, the GIC is a hard prerequisite for VMs. > > I can't remember what the state of RISCV is, but IIRC there is still > some debate over how interrupts are expected to work under virt. > > On x86, the story is very different.  P

Arch-neutral name for hardware interrupt support

2021-11-01 Thread Andrew Cooper
Hello, On ARM, the GIC is a hard prerequisite for VMs. I can't remember what the state of RISCV is, but IIRC there is still some debate over how interrupts are expected to work under virt. On x86, the story is very different.  PV have no hardware assistance, while HVM hardware assistance depends