From patchwork Thu Feb 15 15:39:30 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brijesh Singh X-Patchwork-Id: 10222527 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EC6D6602CB for ; Thu, 15 Feb 2018 16:49:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DB9A029480 for ; Thu, 15 Feb 2018 16:49:46 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE73D29494; Thu, 15 Feb 2018 16:49:46 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89CAF29480 for ; Thu, 15 Feb 2018 16:49:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423807AbeBOQto (ORCPT ); Thu, 15 Feb 2018 11:49:44 -0500 Received: from mail-bn3nam01on0078.outbound.protection.outlook.com ([104.47.33.78]:44672 "EHLO NAM01-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1423747AbeBOPkf (ORCPT ); Thu, 15 Feb 2018 10:40:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=Jz5F8LNiwpEKW4LLBcsXqKy0ISDlsDa2NoZQjM2pCr0=; b=lF+tt10YJXIp3KL1JKaFI5BrEsjQFgELLRDpXcztQ1XhJSJyg9TBlv+LztToeqLpC/beYFusrqnHKMhYqpMhCd7pyKTdWR3RiAKk2Jv8OnOwwXdd+yqBNlKr9IFJCwf4qxvphTZ6E4mKQyeHngqLNBe0WbJPL2v6ZKVOGqrLXqU= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=brijesh.singh@amd.com; Received: from wsp141597wss.amd.com (165.204.78.1) by SN1PR12MB0157.namprd12.prod.outlook.com (10.162.3.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.20.506.18; Thu, 15 Feb 2018 15:40:26 +0000 From: Brijesh Singh To: qemu-devel@nongnu.org Cc: Alistair Francis , Christian Borntraeger , Cornelia Huck , "Daniel P . Berrange" , "Dr. David Alan Gilbert" , "Michael S. Tsirkin" , "Edgar E. Iglesias" , Eduardo Habkost , Eric Blake , kvm@vger.kernel.org, Marcel Apfelbaum , Markus Armbruster , Paolo Bonzini , Peter Crosthwaite , Peter Maydell , Richard Henderson , Stefan Hajnoczi , Thomas Lendacky , Borislav Petkov , Alexander Graf , Bruce Rogers , Brijesh Singh , Richard Henderson Subject: [PATCH v9 04/29] monitor/i386: use debug APIs when accessing guest memory Date: Thu, 15 Feb 2018 09:39:30 -0600 Message-Id: <20180215153955.3253-5-brijesh.singh@amd.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180215153955.3253-1-brijesh.singh@amd.com> References: <20180215153955.3253-1-brijesh.singh@amd.com> MIME-Version: 1.0 X-Originating-IP: [165.204.78.1] X-ClientProxiedBy: CY4PR04CA0044.namprd04.prod.outlook.com (10.172.133.30) To SN1PR12MB0157.namprd12.prod.outlook.com (10.162.3.144) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: ee1af2d2-a8cb-486e-44a0-08d5748a7011 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(48565401081)(4534165)(4627221)(201703031133081)(201702281549075)(5600026)(4604075)(2017052603307)(7153060)(7193020); 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SN1PR12MB0157; 20:V0fuGimAVtP+Ex05OXjDLTTVga5nhaznrwWgiOaeh8sBn00sJwc7PXB4jqBv2T45OdEVPOenz6j6mICTbulcH9KJeDsJCZR2x95MPbeVKs+NC1shJpO4YvhCfbTuswNbV3RsnDpe2b/cgxHv11HC5qb17YYokVtDwLgr2ZraOR2nY95cN52NIyrTNwz6VS4jGb4JAc05dxJFWP4f+0LReg+PywjNO6CivD1ikaJXq/PlylHnXUoAgULclg5+T0ot X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Feb 2018 15:40:26.0406 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ee1af2d2-a8cb-486e-44a0-08d5748a7011 X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR12MB0157 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Updates HMP commands to use the debug version of APIs when accessing the guest memory. Cc: Paolo Bonzini Cc: Peter Crosthwaite Cc: Richard Henderson Cc: "Dr. David Alan Gilbert" Cc: Markus Armbruster Cc: Eduardo Habkost Signed-off-by: Brijesh Singh Reviewed-by: Dr. David Alan Gilbert --- cpus.c | 2 +- disas.c | 2 +- monitor.c | 6 +++--- target/i386/helper.c | 14 ++++++------ target/i386/monitor.c | 60 +++++++++++++++++++++++++++------------------------ 5 files changed, 44 insertions(+), 40 deletions(-) diff --git a/cpus.c b/cpus.c index f298b659f467..fdd40d9e8ead 100644 --- a/cpus.c +++ b/cpus.c @@ -2214,7 +2214,7 @@ void qmp_pmemsave(int64_t addr, int64_t size, const char *filename, l = sizeof(buf); if (l > size) l = size; - cpu_physical_memory_read(addr, buf, l); + cpu_physical_memory_read_debug(addr, buf, l); if (fwrite(buf, 1, l, f) != l) { error_setg(errp, QERR_IO_ERROR); goto exit; diff --git a/disas.c b/disas.c index d4ad1089efb3..fcedbf263302 100644 --- a/disas.c +++ b/disas.c @@ -586,7 +586,7 @@ static int physical_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length, struct disassemble_info *info) { - cpu_physical_memory_read(memaddr, myaddr, length); + cpu_physical_memory_read_debug(memaddr, myaddr, length); return 0; } diff --git a/monitor.c b/monitor.c index f4992505b14f..48a9f278d1ec 100644 --- a/monitor.c +++ b/monitor.c @@ -1361,7 +1361,7 @@ static void memory_dump(Monitor *mon, int count, int format, int wsize, if (l > line_size) l = line_size; if (is_physical) { - cpu_physical_memory_read(addr, buf, l); + cpu_physical_memory_read_debug(addr, buf, l); } else { if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) { monitor_printf(mon, " Cannot access memory\n"); @@ -1567,8 +1567,8 @@ static void hmp_sum(Monitor *mon, const QDict *qdict) sum = 0; for(addr = start; addr < (start + size); addr++) { - uint8_t val = address_space_ldub(&address_space_memory, addr, - MEMTXATTRS_UNSPECIFIED, NULL); + uint8_t val; + cpu_physical_memory_read_debug(addr, &val, 1); /* BSD sum algorithm ('sum' Unix command) */ sum = (sum >> 1) | (sum << 15); sum += val; diff --git a/target/i386/helper.c b/target/i386/helper.c index 9fba146b7fb0..58fb6eec562a 100644 --- a/target/i386/helper.c +++ b/target/i386/helper.c @@ -757,7 +757,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) if (la57) { pml5e_addr = ((env->cr[3] & ~0xfff) + (((addr >> 48) & 0x1ff) << 3)) & a20_mask; - pml5e = x86_ldq_phys(cs, pml5e_addr); + pml5e = ldq_phys_debug(cs, pml5e_addr); if (!(pml5e & PG_PRESENT_MASK)) { return -1; } @@ -767,7 +767,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) pml4e_addr = ((pml5e & PG_ADDRESS_MASK) + (((addr >> 39) & 0x1ff) << 3)) & a20_mask; - pml4e = x86_ldq_phys(cs, pml4e_addr); + pml4e = ldq_phys_debug(cs, pml4e_addr); if (!(pml4e & PG_PRESENT_MASK)) { return -1; } @@ -788,14 +788,14 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) { pdpe_addr = ((env->cr[3] & ~0x1f) + ((addr >> 27) & 0x18)) & a20_mask; - pdpe = x86_ldq_phys(cs, pdpe_addr); + pdpe = ldq_phys_debug(cs, pdpe_addr); if (!(pdpe & PG_PRESENT_MASK)) return -1; } pde_addr = ((pdpe & PG_ADDRESS_MASK) + (((addr >> 21) & 0x1ff) << 3)) & a20_mask; - pde = x86_ldq_phys(cs, pde_addr); + pde = ldq_phys_debug(cs, pde_addr); if (!(pde & PG_PRESENT_MASK)) { return -1; } @@ -808,7 +808,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) pte_addr = ((pde & PG_ADDRESS_MASK) + (((addr >> 12) & 0x1ff) << 3)) & a20_mask; page_size = 4096; - pte = x86_ldq_phys(cs, pte_addr); + pte = ldq_phys_debug(cs, pte_addr); } if (!(pte & PG_PRESENT_MASK)) { return -1; @@ -818,7 +818,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) /* page directory entry */ pde_addr = ((env->cr[3] & ~0xfff) + ((addr >> 20) & 0xffc)) & a20_mask; - pde = x86_ldl_phys(cs, pde_addr); + pde = ldl_phys_debug(cs, pde_addr); if (!(pde & PG_PRESENT_MASK)) return -1; if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { @@ -827,7 +827,7 @@ hwaddr x86_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) } else { /* page directory entry */ pte_addr = ((pde & ~0xfff) + ((addr >> 10) & 0xffc)) & a20_mask; - pte = x86_ldl_phys(cs, pte_addr); + pte = ldl_phys_debug(cs, pte_addr); if (!(pte & PG_PRESENT_MASK)) { return -1; } diff --git a/target/i386/monitor.c b/target/i386/monitor.c index 75429129fde0..55ea10deb8ef 100644 --- a/target/i386/monitor.c +++ b/target/i386/monitor.c @@ -68,7 +68,7 @@ static void tlb_info_32(Monitor *mon, CPUArchState *env) pgd = env->cr[3] & ~0xfff; for(l1 = 0; l1 < 1024; l1++) { - cpu_physical_memory_read(pgd + l1 * 4, &pde, 4); + cpu_physical_memory_read_debug(pgd + l1 * 4, &pde, 4); pde = le32_to_cpu(pde); if (pde & PG_PRESENT_MASK) { if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) { @@ -76,7 +76,8 @@ static void tlb_info_32(Monitor *mon, CPUArchState *env) print_pte(mon, env, (l1 << 22), pde, ~((1 << 21) - 1)); } else { for(l2 = 0; l2 < 1024; l2++) { - cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4); + cpu_physical_memory_read_debug((pde & ~0xfff) + l2 * 4, + &pte, 4); pte = le32_to_cpu(pte); if (pte & PG_PRESENT_MASK) { print_pte(mon, env, (l1 << 22) + (l2 << 12), @@ -97,12 +98,12 @@ static void tlb_info_pae32(Monitor *mon, CPUArchState *env) pdp_addr = env->cr[3] & ~0x1f; for (l1 = 0; l1 < 4; l1++) { - cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8); + cpu_physical_memory_read_debug(pdp_addr + l1 * 8, &pdpe, 8); pdpe = le64_to_cpu(pdpe); if (pdpe & PG_PRESENT_MASK) { pd_addr = pdpe & 0x3fffffffff000ULL; for (l2 = 0; l2 < 512; l2++) { - cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8); + cpu_physical_memory_read_debug(pd_addr + l2 * 8, &pde, 8); pde = le64_to_cpu(pde); if (pde & PG_PRESENT_MASK) { if (pde & PG_PSE_MASK) { @@ -112,7 +113,8 @@ static void tlb_info_pae32(Monitor *mon, CPUArchState *env) } else { pt_addr = pde & 0x3fffffffff000ULL; for (l3 = 0; l3 < 512; l3++) { - cpu_physical_memory_read(pt_addr + l3 * 8, &pte, 8); + cpu_physical_memory_read_debug(pt_addr + l3 * 8, + &pte, 8); pte = le64_to_cpu(pte); if (pte & PG_PRESENT_MASK) { print_pte(mon, env, (l1 << 30) + (l2 << 21) @@ -137,7 +139,7 @@ static void tlb_info_la48(Monitor *mon, CPUArchState *env, uint64_t pdp_addr, pd_addr, pt_addr; for (l1 = 0; l1 < 512; l1++) { - cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8); + cpu_physical_memory_read_debug(pml4_addr + l1 * 8, &pml4e, 8); pml4e = le64_to_cpu(pml4e); if (!(pml4e & PG_PRESENT_MASK)) { continue; @@ -145,7 +147,7 @@ static void tlb_info_la48(Monitor *mon, CPUArchState *env, pdp_addr = pml4e & 0x3fffffffff000ULL; for (l2 = 0; l2 < 512; l2++) { - cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8); + cpu_physical_memory_read_debug(pdp_addr + l2 * 8, &pdpe, 8); pdpe = le64_to_cpu(pdpe); if (!(pdpe & PG_PRESENT_MASK)) { continue; @@ -160,7 +162,7 @@ static void tlb_info_la48(Monitor *mon, CPUArchState *env, pd_addr = pdpe & 0x3fffffffff000ULL; for (l3 = 0; l3 < 512; l3++) { - cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8); + cpu_physical_memory_read_debug(pd_addr + l3 * 8, &pde, 8); pde = le64_to_cpu(pde); if (!(pde & PG_PRESENT_MASK)) { continue; @@ -175,9 +177,7 @@ static void tlb_info_la48(Monitor *mon, CPUArchState *env, pt_addr = pde & 0x3fffffffff000ULL; for (l4 = 0; l4 < 512; l4++) { - cpu_physical_memory_read(pt_addr - + l4 * 8, - &pte, 8); + cpu_physical_memory_read_debug(pt_addr + l4 * 8, &pte, 8); pte = le64_to_cpu(pte); if (pte & PG_PRESENT_MASK) { print_pte(mon, env, (l0 << 48) + (l1 << 39) + @@ -198,7 +198,7 @@ static void tlb_info_la57(Monitor *mon, CPUArchState *env) pml5_addr = env->cr[3] & 0x3fffffffff000ULL; for (l0 = 0; l0 < 512; l0++) { - cpu_physical_memory_read(pml5_addr + l0 * 8, &pml5e, 8); + cpu_physical_memory_read_debug(pml5_addr + l0 * 8, &pml5e, 8); pml5e = le64_to_cpu(pml5e); if (pml5e & PG_PRESENT_MASK) { tlb_info_la48(mon, env, l0, pml5e & 0x3fffffffff000ULL); @@ -273,7 +273,7 @@ static void mem_info_32(Monitor *mon, CPUArchState *env) last_prot = 0; start = -1; for(l1 = 0; l1 < 1024; l1++) { - cpu_physical_memory_read(pgd + l1 * 4, &pde, 4); + cpu_physical_memory_read_debug(pgd + l1 * 4, &pde, 4); pde = le32_to_cpu(pde); end = l1 << 22; if (pde & PG_PRESENT_MASK) { @@ -282,7 +282,8 @@ static void mem_info_32(Monitor *mon, CPUArchState *env) mem_print(mon, &start, &last_prot, end, prot); } else { for(l2 = 0; l2 < 1024; l2++) { - cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4); + cpu_physical_memory_read_debug((pde & ~0xfff) + l2 * 4, + &pte, 4); pte = le32_to_cpu(pte); end = (l1 << 22) + (l2 << 12); if (pte & PG_PRESENT_MASK) { @@ -315,13 +316,13 @@ static void mem_info_pae32(Monitor *mon, CPUArchState *env) last_prot = 0; start = -1; for (l1 = 0; l1 < 4; l1++) { - cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8); + cpu_physical_memory_read_debug(pdp_addr + l1 * 8, &pdpe, 8); pdpe = le64_to_cpu(pdpe); end = l1 << 30; if (pdpe & PG_PRESENT_MASK) { pd_addr = pdpe & 0x3fffffffff000ULL; for (l2 = 0; l2 < 512; l2++) { - cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8); + cpu_physical_memory_read_debug(pd_addr + l2 * 8, &pde, 8); pde = le64_to_cpu(pde); end = (l1 << 30) + (l2 << 21); if (pde & PG_PRESENT_MASK) { @@ -332,7 +333,8 @@ static void mem_info_pae32(Monitor *mon, CPUArchState *env) } else { pt_addr = pde & 0x3fffffffff000ULL; for (l3 = 0; l3 < 512; l3++) { - cpu_physical_memory_read(pt_addr + l3 * 8, &pte, 8); + cpu_physical_memory_read_debug(pt_addr + l3 * 8, + &pte, 8); pte = le64_to_cpu(pte); end = (l1 << 30) + (l2 << 21) + (l3 << 12); if (pte & PG_PRESENT_MASK) { @@ -371,13 +373,13 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env) last_prot = 0; start = -1; for (l1 = 0; l1 < 512; l1++) { - cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8); + cpu_physical_memory_read_debug(pml4_addr + l1 * 8, &pml4e, 8); pml4e = le64_to_cpu(pml4e); end = l1 << 39; if (pml4e & PG_PRESENT_MASK) { pdp_addr = pml4e & 0x3fffffffff000ULL; for (l2 = 0; l2 < 512; l2++) { - cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8); + cpu_physical_memory_read_debug(pdp_addr + l2 * 8, &pdpe, 8); pdpe = le64_to_cpu(pdpe); end = (l1 << 39) + (l2 << 30); if (pdpe & PG_PRESENT_MASK) { @@ -389,7 +391,8 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env) } else { pd_addr = pdpe & 0x3fffffffff000ULL; for (l3 = 0; l3 < 512; l3++) { - cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8); + cpu_physical_memory_read_debug(pd_addr + l3 * 8, + &pde, 8); pde = le64_to_cpu(pde); end = (l1 << 39) + (l2 << 30) + (l3 << 21); if (pde & PG_PRESENT_MASK) { @@ -401,9 +404,9 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env) } else { pt_addr = pde & 0x3fffffffff000ULL; for (l4 = 0; l4 < 512; l4++) { - cpu_physical_memory_read(pt_addr - + l4 * 8, - &pte, 8); + cpu_physical_memory_read_debug(pt_addr + + l4 * 8, + &pte, 8); pte = le64_to_cpu(pte); end = (l1 << 39) + (l2 << 30) + (l3 << 21) + (l4 << 12); @@ -448,7 +451,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env) last_prot = 0; start = -1; for (l0 = 0; l0 < 512; l0++) { - cpu_physical_memory_read(pml5_addr + l0 * 8, &pml5e, 8); + cpu_physical_memory_read_debug(pml5_addr + l0 * 8, &pml5e, 8); pml5e = le64_to_cpu(pml5e); end = l0 << 48; if (!(pml5e & PG_PRESENT_MASK)) { @@ -459,7 +462,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env) pml4_addr = pml5e & 0x3fffffffff000ULL; for (l1 = 0; l1 < 512; l1++) { - cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8); + cpu_physical_memory_read_debug(pml4_addr + l1 * 8, &pml4e, 8); pml4e = le64_to_cpu(pml4e); end = (l0 << 48) + (l1 << 39); if (!(pml4e & PG_PRESENT_MASK)) { @@ -470,7 +473,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env) pdp_addr = pml4e & 0x3fffffffff000ULL; for (l2 = 0; l2 < 512; l2++) { - cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8); + cpu_physical_memory_read_debug(pdp_addr + l2 * 8, &pdpe, 8); pdpe = le64_to_cpu(pdpe); end = (l0 << 48) + (l1 << 39) + (l2 << 30); if (pdpe & PG_PRESENT_MASK) { @@ -489,7 +492,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env) pd_addr = pdpe & 0x3fffffffff000ULL; for (l3 = 0; l3 < 512; l3++) { - cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8); + cpu_physical_memory_read_debug(pd_addr + l3 * 8, &pde, 8); pde = le64_to_cpu(pde); end = (l0 << 48) + (l1 << 39) + (l2 << 30) + (l3 << 21); if (pde & PG_PRESENT_MASK) { @@ -508,7 +511,8 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env) pt_addr = pde & 0x3fffffffff000ULL; for (l4 = 0; l4 < 512; l4++) { - cpu_physical_memory_read(pt_addr + l4 * 8, &pte, 8); + cpu_physical_memory_read_debug(pt_addr + l4 * 8, + &pte, 8); pte = le64_to_cpu(pte); end = (l0 << 48) + (l1 << 39) + (l2 << 30) + (l3 << 21) + (l4 << 12);