Module Name: src
Committed By: ryo
Date: Wed Jan 8 05:41:07 UTC 2020
Modified Files:
src/sys/arch/aarch64/aarch64: aarch64_machdep.c locore.S
Log Message:
fix panic when modload.
>panic: kernel diagnostic assertion "!pmap_extract(pmap_kernel(), loopva,
>NULL)" failed: file "../../../../uvm/uvm_km.c", line 674
>loopva=0xffffffc001000000'
The space allocated by bootpage_alloc() is only used as a physical page
for pagetable pages, so there is no need to map it with KVA.
And kernend_extra should not have consumed any KVA space.
To generate a diff of this commit:
cvs rdiff -u -r1.36 -r1.37 src/sys/arch/aarch64/aarch64/aarch64_machdep.c
cvs rdiff -u -r1.49 -r1.50 src/sys/arch/aarch64/aarch64/locore.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/aarch64/aarch64/aarch64_machdep.c
diff -u src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.36 src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.37
--- src/sys/arch/aarch64/aarch64/aarch64_machdep.c:1.36 Mon Dec 30 15:54:55 2019
+++ src/sys/arch/aarch64/aarch64/aarch64_machdep.c Wed Jan 8 05:41:07 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: aarch64_machdep.c,v 1.36 2019/12/30 15:54:55 skrll Exp $ */
+/* $NetBSD: aarch64_machdep.c,v 1.37 2020/01/08 05:41:07 ryo Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.36 2019/12/30 15:54:55 skrll Exp $");
+__KERNEL_RCSID(1, "$NetBSD: aarch64_machdep.c,v 1.37 2020/01/08 05:41:07 ryo Exp $");
#include "opt_arm_debug.h"
#include "opt_ddb.h"
@@ -99,7 +99,7 @@ vaddr_t physical_end;
/* filled in before cleaning bss. keep in .data */
u_long kern_vtopdiff __attribute__((__section__(".data")));
-long kernend_extra; /* extra memory allocated from round_page(_end[]) */
+long kernend_extra; /* extra physicalmemory allocated from round_page(_end[]) */
/* dump configuration */
int cpu_dump(void);
@@ -227,7 +227,7 @@ cpu_kernel_vm_init(uint64_t memory_start
pmapboot_protect(L2_TRUNC_BLOCK(kernstart),
L2_TRUNC_BLOCK(data_start), VM_PROT_WRITE);
pmapboot_protect(L2_ROUND_BLOCK(rodata_start),
- L2_ROUND_BLOCK(kernend + kernend_extra), VM_PROT_EXECUTE);
+ L2_ROUND_BLOCK(kernend), VM_PROT_EXECUTE);
aarch64_tlbi_all();
@@ -287,7 +287,7 @@ initarm_common(vaddr_t kvm_base, vsize_t
kernstart = trunc_page((vaddr_t)__kernel_text);
kernend = round_page((vaddr_t)_end);
kernstart_l2 = L2_TRUNC_BLOCK(kernstart);
- kernend_l2 = L2_ROUND_BLOCK(kernend + kernend_extra);
+ kernend_l2 = L2_ROUND_BLOCK(kernend);
kernelvmstart = kernend_l2;
#ifdef MODULAR
@@ -341,14 +341,14 @@ initarm_common(vaddr_t kvm_base, vsize_t
"physical_start = 0x%016lx\n"
"kernel_start_phys = 0x%016lx\n"
"kernel_end_phys = 0x%016lx\n"
+ "pagetables_start_phys = 0x%016lx\n"
+ "pagetables_end_phys = 0x%016lx\n"
"msgbuf = 0x%016lx\n"
"physical_end = 0x%016lx\n"
"VM_MIN_KERNEL_ADDRESS = 0x%016lx\n"
"kernel_start_l2 = 0x%016lx\n"
"kernel_start = 0x%016lx\n"
"kernel_end = 0x%016lx\n"
- "pagetables = 0x%016lx\n"
- "pagetables_end = 0x%016lx\n"
"kernel_end_l2 = 0x%016lx\n"
#ifdef MODULAR
"module_start = 0x%016lx\n"
@@ -362,14 +362,14 @@ initarm_common(vaddr_t kvm_base, vsize_t
physical_start,
kernstart_phys,
kernend_phys,
+ round_page(kernend_phys),
+ round_page(kernend_phys) + kernend_extra,
msgbufaddr,
physical_end,
VM_MIN_KERNEL_ADDRESS,
kernstart_l2,
kernstart,
kernend,
- round_page(kernend),
- round_page(kernend) + kernend_extra,
kernend_l2,
#ifdef MODULAR
module_start,
@@ -553,7 +553,7 @@ mm_md_kernacc(void *ptr, vm_prot_t prot,
#define IN_RANGE(addr,sta,end) (((sta) <= (addr)) && ((addr) < (end)))
*handled = false;
- if (IN_RANGE(v, kernstart, kernend + kernend_extra)) {
+ if (IN_RANGE(v, kernstart, kernend)) {
*handled = true;
if ((v < data_start) && (prot & VM_PROT_WRITE))
return EFAULT;
Index: src/sys/arch/aarch64/aarch64/locore.S
diff -u src/sys/arch/aarch64/aarch64/locore.S:1.49 src/sys/arch/aarch64/aarch64/locore.S:1.50
--- src/sys/arch/aarch64/aarch64/locore.S:1.49 Sat Dec 28 17:19:43 2019
+++ src/sys/arch/aarch64/aarch64/locore.S Wed Jan 8 05:41:07 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: locore.S,v 1.49 2019/12/28 17:19:43 jmcneill Exp $ */
+/* $NetBSD: locore.S,v 1.50 2020/01/08 05:41:07 ryo Exp $ */
/*
* Copyright (c) 2017 Ryo Shimizu <r...@nerv.org>
@@ -38,7 +38,7 @@
#include <aarch64/hypervisor.h>
#include "assym.h"
-RCSID("$NetBSD: locore.S,v 1.49 2019/12/28 17:19:43 jmcneill Exp $")
+RCSID("$NetBSD: locore.S,v 1.50 2020/01/08 05:41:07 ryo Exp $")
#ifdef AARCH64_DEVICE_MEM_STRONGLY_ORDERED
#define MAIR_DEVICE_MEM MAIR_DEVICE_nGnRnE
@@ -848,7 +848,6 @@ init_mmutable:
adr x1, start /* pa = start */
ADDR x2, _end
sub x2, x2, x1 /* size = _end - start */
- add x2, x2, #BOOTPAGE_ALLOC_MAX /* for bootpage_alloc() */
ldr x0, =start /* va */
bl pmapboot_enter
cbnz x0, init_mmutable_error
