From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37928) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VFHGe-0000S5-QA for qemu-devel@nongnu.org; Fri, 30 Aug 2013 01:29:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VFHGP-0004n4-8a for qemu-devel@nongnu.org; Fri, 30 Aug 2013 01:29:08 -0400 Received: from e23smtp04.au.ibm.com ([202.81.31.146]:36176) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VFHGO-0004ks-LH for qemu-devel@nongnu.org; Fri, 30 Aug 2013 01:28:53 -0400 Received: from /spool/local by e23smtp04.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 30 Aug 2013 15:11:31 +1000 From: Alexey Kardashevskiy Date: Fri, 30 Aug 2013 15:28:32 +1000 Message-Id: <1377840513-24882-12-git-send-email-aik@ozlabs.ru> In-Reply-To: <1377840513-24882-1-git-send-email-aik@ozlabs.ru> References: <1377840513-24882-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v4 11/12] xics: Implement H_IPOLL List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexey Kardashevskiy , Alexander Graf , qemu-ppc@nongnu.org, Paul Mackerras , =?UTF-8?q?Andreas=20F=C3=A4rber?= , David Gibson 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 Acked-by: Alexander Graf --- hw/intc/xics.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/intc/xics.c b/hw/intc/xics.c index 2139243..b4edfb3 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