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[Qemu-ppc] [PATCH v5 11/14] xics: Implement H_IPOLL
From: |
Alexey Kardashevskiy |
Subject: |
[Qemu-ppc] [PATCH v5 11/14] xics: Implement H_IPOLL |
Date: |
Thu, 26 Sep 2013 16:18:45 +1000 |
From: Benjamin Herrenschmidt <address@hidden>
This adds support for the H_IPOLL hypercall which the guest
uses to poll for a pending interrupt. This hypercall is
mandatory for PAPR+ and there is no way for the guest to
detect whether it is supported or not so just add it.
Signed-off-by: Benjamin Herrenschmidt <address@hidden>
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Acked-by: Alexander Graf <address@hidden>
---
hw/intc/xics.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index 1c6e6f5..eb93276 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -689,6 +689,18 @@ static target_ulong h_eoi(PowerPCCPU *cpu,
sPAPREnvironment *spapr,
return H_SUCCESS;
}
+static target_ulong h_ipoll(PowerPCCPU *cpu, sPAPREnvironment *spapr,
+ target_ulong opcode, target_ulong *args)
+{
+ CPUState *cs = CPU(cpu);
+ ICPState *ss = &spapr->icp->ss[cs->cpu_index];
+
+ args[0] = ss->xirr;
+ args[1] = ss->mfrr;
+
+ return H_SUCCESS;
+}
+
static void rtas_set_xive(PowerPCCPU *cpu, sPAPREnvironment *spapr,
uint32_t token,
uint32_t nargs, target_ulong args,
@@ -842,6 +854,7 @@ static void xics_realize(DeviceState *dev, Error **errp)
spapr_register_hypercall(H_IPI, h_ipi);
spapr_register_hypercall(H_XIRR, h_xirr);
spapr_register_hypercall(H_EOI, h_eoi);
+ spapr_register_hypercall(H_IPOLL, h_ipoll);
object_property_set_bool(OBJECT(icp->ics), true, "realized", &error);
if (error) {
--
1.8.4.rc4
- Re: [Qemu-ppc] [PATCH v5 02/14] xics: move reset and cpu_setup, (continued)
- [Qemu-ppc] [PATCH v5 03/14] spapr: move cpu_setup after kvmppc_set_papr, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 07/14] xics: add missing const specifiers to TypeInfo, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 04/14] xics: replace fprintf with error_report, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 14/14] spapr-pci: enable irqfd for INTx, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 05/14] xics: add pre_save/post_load dispatchers, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 06/14] xics: convert init() to realize(), Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 08/14] xics: split to xics and xics-common, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 11/14] xics: Implement H_IPOLL,
Alexey Kardashevskiy <=
- [Qemu-ppc] [PATCH v5 12/14] xics: Implement H_XIRR_X, Alexey Kardashevskiy, 2013/09/26
- [Qemu-ppc] [PATCH v5 13/14] xics-kvm: enable irqfd for MSI, Alexey Kardashevskiy, 2013/09/26
- Re: [Qemu-ppc] [PATCH v5 00/14] xics: reworks and in-kernel support, Alexander Graf, 2013/09/30