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[Qemu-devel] [PULL 19/29] xics: Implement H_IPOLL
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PULL 19/29] xics: Implement H_IPOLL |
Date: |
Fri, 25 Oct 2013 23:27:44 +0200 |
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>
Signed-off-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) {
--
1.8.1.4
- [Qemu-devel] [PULL 00/29] ppc patch queue 2013-10-2 5, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 02/29] pseries: Fix loading of little endian kernels, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 07/29] spapr: Add ibm, purr property on power7 and newer, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 03/29] ppc: Add CFAR, DAR and DSISR to the dictionary of printable registers, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 04/29] target-ppc: Little Endian Correction to Load/Store Vector Element, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 19/29] xics: Implement H_IPOLL,
Alexander Graf <=
- [Qemu-devel] [PULL 11/29] spapr: move cpu_setup after kvmppc_set_papr, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 20/29] xics: Implement H_XIRR_X, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 05/29] PPC: Fix L2CR write accesses, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 10/29] xics: move reset and cpu_setup, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 08/29] spapr-rtas: fix h_rtas parameters reading, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 15/29] xics: add missing const specifiers to TypeInfo, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 12/29] xics: replace fprintf with error_report, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 17/29] xics: add cpu_setup callback, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 13/29] xics: add pre_save/post_load dispatchers, Alexander Graf, 2013/10/25
- [Qemu-devel] [PULL 14/29] xics: convert init() to realize(), Alexander Graf, 2013/10/25