On 8 August 2018 at 10:11, Dave Martin wrote:
> At its heart, I'm trying to abstract out the special behaviour of
> all unallocated ID registers, so that we can decide at runtime which
> ones to hide fro the guest: within the ID register block, each
> unallocated register becomes RAZ, not
Although vgic-v3 now supports Group0 interrupts, it still doesn't
deal with Group0 SGIs. As usually with the GIC, nothing is simple:
- ICC_SGI1R can signal SGIs of both groups, since GICD_CTLR.DS==1
with KVM (as per 8.1.10, Non-secure EL1 access)
- ICC_SGI0R can only generate Group0 SGIs
-
Although we now have Group0 support, we still miss support for Group0
SGIs (which amounts to handling ICC_SGI0R_EL1 and ICC_ASGI1R_EL1
traps), and this small series adds such support.
I appreciate this is *very* late for 4.19, I'd like to take it in as
they complement Christoffer's Group0
In order to generate Group0 SGIs, let's add some decoding logic to
access_gic_sgi(), and pass the generating group accordingly.
Signed-off-by: Marc Zyngier
---
arch/arm/kvm/coproc.c | 25 -
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git
In order to generate Group0 SGIs, let's add some decoding logic to
access_gic_sgi(), and pass the generating group accordingly.
Signed-off-by: Marc Zyngier
---
arch/arm64/include/asm/sysreg.h | 2 ++
arch/arm64/kvm/sys_regs.c | 41 +++--
2 files changed, 41
Return statements in functions returning bool should use true or false
instead of an integer value.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva
---
arch/arm/include/asm/kvm_emulate.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
On Wed, Aug 08, 2018 at 10:11:11AM +0100, Dave Martin wrote:
> On Tue, Aug 07, 2018 at 09:35:12PM +0200, Christoffer Dall wrote:
> > On Tue, Aug 07, 2018 at 12:09:58PM +0100, Dave Martin wrote:
> > > On Mon, Aug 06, 2018 at 03:03:24PM +0200, Christoffer Dall wrote:
> > > > Hi Dave,
> > > >
> > >
On Tue, Aug 07, 2018 at 09:35:12PM +0200, Christoffer Dall wrote:
> On Tue, Aug 07, 2018 at 12:09:58PM +0100, Dave Martin wrote:
> > On Mon, Aug 06, 2018 at 03:03:24PM +0200, Christoffer Dall wrote:
> > > Hi Dave,
> > >
> > > I think there's a typo in the subject "to be" rather than "to by".
> >
On Tue, Aug 07, 2018 at 09:20:10PM +0200, Christoffer Dall wrote:
[...]
> > diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
> > index a436373..31a351a 100644
> > --- a/arch/arm64/kvm/sys_regs.c
> > +++ b/arch/arm64/kvm/sys_regs.c
> > @@ -1840,7 +1840,7 @@ static int
On Tue, Aug 07, 2018 at 10:08:28PM +0200, Christoffer Dall wrote:
> On Tue, Aug 07, 2018 at 12:23:45PM +0100, Dave Martin wrote:
> > On Mon, Aug 06, 2018 at 03:41:33PM +0200, Christoffer Dall wrote:
[...]
> > > I'm personally fine with both feature flags and vcpu device ioctls. If
> > > using
On Tue, Aug 07, 2018 at 09:43:38PM +0200, Christoffer Dall wrote:
> On Tue, Aug 07, 2018 at 12:15:26PM +0100, Dave Martin wrote:
> > On Mon, Aug 06, 2018 at 03:19:10PM +0200, Christoffer Dall wrote:
[...]
> > > nit: this may also be folded nicely into a static bool
> > >
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