From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54367) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VCq4u-0004Wy-H7 for qemu-devel@nongnu.org; Fri, 23 Aug 2013 08:03:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VCq4n-0006nC-5p for qemu-devel@nongnu.org; Fri, 23 Aug 2013 08:02:56 -0400 Received: from mail-pd0-f173.google.com ([209.85.192.173]:64473) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VCq4m-0006mY-Ss for qemu-devel@nongnu.org; Fri, 23 Aug 2013 08:02:49 -0400 Received: by mail-pd0-f173.google.com with SMTP id p10so602792pdj.32 for ; Fri, 23 Aug 2013 05:02:48 -0700 (PDT) From: Alexey Kardashevskiy Date: Fri, 23 Aug 2013 22:02:33 +1000 Message-Id: <1377259353-27815-1-git-send-email-aik@ozlabs.ru> In-Reply-To: <1376891726-26122-1-git-send-email-aik@ozlabs.ru> References: <1376891726-26122-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v3] xics: Add H_IPOLL implementation List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aik@ozlabs.ru, qemu-ppc@nongnu.org, =?UTF-8?q?Andreas=20F=C3=A4rber?= , Alexander Graf From: Benjamin Herrenschmidt 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 Signed-off-by: Alexey Kardashevskiy --- hw/intc/xics.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/intc/xics.c b/hw/intc/xics.c index f439e8d..2e6111d 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