From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56154) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dBafi-0007iz-Vc for qemu-devel@nongnu.org; Fri, 19 May 2017 01:41:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dBaff-0005Zp-To for qemu-devel@nongnu.org; Fri, 19 May 2017 01:41:55 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:59370) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dBaff-0005ZO-Jj for qemu-devel@nongnu.org; Fri, 19 May 2017 01:41:51 -0400 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v4J5ehFC117131 for ; Fri, 19 May 2017 01:41:50 -0400 Received: from e23smtp05.au.ibm.com (e23smtp05.au.ibm.com [202.81.31.147]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ahrwmm22f-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 19 May 2017 01:41:50 -0400 Received: from localhost by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 19 May 2017 15:41:47 +1000 From: Bharata B Rao Date: Fri, 19 May 2017 11:10:39 +0530 In-Reply-To: <1495172439-1504-1-git-send-email-bharata@linux.vnet.ibm.com> References: <1495172439-1504-1-git-send-email-bharata@linux.vnet.ibm.com> Message-Id: <1495172439-1504-5-git-send-email-bharata@linux.vnet.ibm.com> Subject: [Qemu-devel] [RFC PATCH v2 4/4] spapr: Fix migration of Radix guests List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, sam.bobroff@au1.ibm.com, rnsastry@linux.vnet.ibm.com, Bharata B Rao Fix migration of radix guests by ensuring that we issue KVM_PPC_CONFIGURE_V3_MMU for radix case post migration. Reported-by: Nageswara R Sastry Signed-off-by: Bharata B Rao --- hw/ppc/spapr.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index daf335c..8f20f14 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -1400,6 +1400,18 @@ static int spapr_post_load(void *opaque, int version_id) err = spapr_rtc_import_offset(&spapr->rtc, spapr->rtc_offset); } + if (spapr->patb_entry) { + PowerPCCPU *cpu = POWERPC_CPU(first_cpu); + if (kvmppc_has_cap_mmu_radix() && kvm_enabled()) { + err = kvmppc_configure_v3_mmu(cpu, SPAPR_PROC_TABLE_RADIX, + ((cpu->env.spr[SPR_LPCR] & LPCR_GTSE) ? SPAPR_PROC_TABLE_GTSE : + 0), spapr->patb_entry); + } else { + error_report("Radix guest is unsupported by the host"); + return -EINVAL; + } + } + return err; } -- 2.7.4