Messages in this thread |  | | Subject | Re: [PATCH v6 15/18] KVM: arm64: Support SDEI_FEATURES hypercall | From | Gavin Shan <> | Date | Mon, 2 May 2022 11:05:42 +0800 |
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Hi Oliver,
On 5/1/22 2:55 PM, Oliver Upton wrote: > On Sun, Apr 03, 2022 at 11:39:08PM +0800, Gavin Shan wrote: >> This supports SDEI_FEATURES hypercall. It's used by guest to >> retrieve the supported features, which are number of slots for >> the interrupt binding events and relative mode for the event >> handler. Currently, none of them is supported. >> >> Signed-off-by: Gavin Shan <gshan@redhat.com> >> --- >> arch/arm64/kvm/sdei.c | 20 ++++++++++++++++++++ >> 1 file changed, 20 insertions(+) >> >> diff --git a/arch/arm64/kvm/sdei.c b/arch/arm64/kvm/sdei.c >> index e1f6ab9800ee..ab0b7b5e3191 100644 >> --- a/arch/arm64/kvm/sdei.c >> +++ b/arch/arm64/kvm/sdei.c >> @@ -527,6 +527,23 @@ static unsigned long hypercall_reset(struct kvm_vcpu *vcpu, bool private) >> return ret; >> } >> >> +static unsigned long hypercall_features(struct kvm_vcpu *vcpu) >> +{ >> + unsigned long feature = smccc_get_arg(vcpu, 1); >> + unsigned long ret; >> + >> + switch (feature) { >> + case 0: /* BIND_SLOTS */ >> + case 1: /* RELATIVE_MODE */ > > Can you create macros for these? >
Surely I will do. Thanks for your review and comments :)
Thanks, Gavin
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