| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20211206104657.433304-11-alexandre.ghiti@canonical.com>
Date: Mon, 6 Dec 2021 11:46:54 +0100
From: Alexandre Ghiti <alexandre.ghiti@...onical.com>
To: Jonathan Corbet <corbet@....net>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Zong Li <zong.li@...ive.com>, Anup Patel <anup@...infault.org>,
Atish Patra <Atish.Patra@...osinc.com>,
Christoph Hellwig <hch@....de>,
Andrey Ryabinin <ryabinin.a.a@...il.com>,
Alexander Potapenko <glider@...gle.com>,
Andrey Konovalov <andreyknvl@...il.com>,
Dmitry Vyukov <dvyukov@...gle.com>,
Ard Biesheuvel <ardb@...nel.org>,
Arnd Bergmann <arnd@...db.de>,
Kees Cook <keescook@...omium.org>,
Guo Ren <guoren@...ux.alibaba.com>,
Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
Mayuresh Chitale <mchitale@...tanamicro.com>,
panqinglin2020@...as.ac.cn, linux-doc@...r.kernel.org,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
kasan-dev@...glegroups.com, linux-efi@...r.kernel.org,
linux-arch@...r.kernel.org
Cc: Alexandre Ghiti <alexandre.ghiti@...onical.com>
Subject: [PATCH v3 10/13] riscv: Improve virtual kernel memory layout dump
With the arrival of sv48 and its large address space, it would be
cumbersome to statically define the unit size to use to print the different
portions of the virtual memory layout: instead, determine it dynamically.
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@...onical.com>
---
arch/riscv/mm/init.c | 67 +++++++++++++++++++++++-------
drivers/pci/controller/pci-xgene.c | 2 +-
include/linux/sizes.h | 1 +
3 files changed, 54 insertions(+), 16 deletions(-)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 6a19a1b1caf8..28de6ea0a720 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -79,37 +79,74 @@ static void __init zone_sizes_init(void)
}
#if defined(CONFIG_MMU) && defined(CONFIG_DEBUG_VM)
+
+#define LOG2_SZ_1K ilog2(SZ_1K)
+#define LOG2_SZ_1M ilog2(SZ_1M)
+#define LOG2_SZ_1G ilog2(SZ_1G)
+#define LOG2_SZ_1T ilog2(SZ_1T)
+
static inline void print_mlk(char *name, unsigned long b, unsigned long t)
{
pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld kB)\n", name, b, t,
- (((t) - (b)) >> 10));
+ (((t) - (b)) >> LOG2_SZ_1K));
}
static inline void print_mlm(char *name, unsigned long b, unsigned long t)
{
pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld MB)\n", name, b, t,
- (((t) - (b)) >> 20));
+ (((t) - (b)) >> LOG2_SZ_1M));
+}
+
+static inline void print_mlg(char *name, unsigned long b, unsigned long t)
+{
+ pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld GB)\n", name, b, t,
+ (((t) - (b)) >> LOG2_SZ_1G));
+}
+
+#ifdef CONFIG_64BIT
+static inline void print_mlt(char *name, unsigned long b, unsigned long t)
+{
+ pr_notice("%12s : 0x%08lx - 0x%08lx (%4ld TB)\n", name, b, t,
+ (((t) - (b)) >> LOG2_SZ_1T));
+}
+#endif
+
+static inline void print_ml(char *name, unsigned long b, unsigned long t)
+{
+ unsigned long diff = t - b;
+
+#ifdef CONFIG_64BIT
+ if ((diff >> LOG2_SZ_1T) >= 10)
+ print_mlt(name, b, t);
+ else
+#endif
+ if ((diff >> LOG2_SZ_1G) >= 10)
+ print_mlg(name, b, t);
+ else if ((diff >> LOG2_SZ_1M) >= 10)
+ print_mlm(name, b, t);
+ else
+ print_mlk(name, b, t);
}
static void __init print_vm_layout(void)
{
pr_notice("Virtual kernel memory layout:\n");
- print_mlk("fixmap", (unsigned long)FIXADDR_START,
- (unsigned long)FIXADDR_TOP);
- print_mlm("pci io", (unsigned long)PCI_IO_START,
- (unsigned long)PCI_IO_END);
- print_mlm("vmemmap", (unsigned long)VMEMMAP_START,
- (unsigned long)VMEMMAP_END);
- print_mlm("vmalloc", (unsigned long)VMALLOC_START,
- (unsigned long)VMALLOC_END);
- print_mlm("lowmem", (unsigned long)PAGE_OFFSET,
- (unsigned long)high_memory);
+ print_ml("fixmap", (unsigned long)FIXADDR_START,
+ (unsigned long)FIXADDR_TOP);
+ print_ml("pci io", (unsigned long)PCI_IO_START,
+ (unsigned long)PCI_IO_END);
+ print_ml("vmemmap", (unsigned long)VMEMMAP_START,
+ (unsigned long)VMEMMAP_END);
+ print_ml("vmalloc", (unsigned long)VMALLOC_START,
+ (unsigned long)VMALLOC_END);
+ print_ml("lowmem", (unsigned long)PAGE_OFFSET,
+ (unsigned long)high_memory);
#ifdef CONFIG_64BIT
#ifdef CONFIG_KASAN
- print_mlm("kasan", KASAN_SHADOW_START, KASAN_SHADOW_END);
+ print_ml("kasan", KASAN_SHADOW_START, KASAN_SHADOW_END);
#endif
- print_mlm("kernel", (unsigned long)KERNEL_LINK_ADDR,
- (unsigned long)ADDRESS_SPACE_END);
+ print_ml("kernel", (unsigned long)KERNEL_LINK_ADDR,
+ (unsigned long)ADDRESS_SPACE_END);
#endif
}
#else
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index e64536047b65..187dcf8a9694 100644
--- a/drivers/pci/controller/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
@@ -21,6 +21,7 @@
#include <linux/pci-ecam.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
+#include <linux/sizes.h>
#include "../pci.h"
@@ -50,7 +51,6 @@
#define OB_LO_IO 0x00000002
#define XGENE_PCIE_VENDORID 0x10E8
#define XGENE_PCIE_DEVICEID 0xE004
-#define SZ_1T (SZ_1G*1024ULL)
#define PIPE_PHY_RATE_RD(src) ((0xc000 & (u32)(src)) >> 0xe)
#define XGENE_V1_PCI_EXP_CAP 0x40
diff --git a/include/linux/sizes.h b/include/linux/sizes.h
index 1ac79bcee2bb..0bc6cf394b08 100644
--- a/include/linux/sizes.h
+++ b/include/linux/sizes.h
@@ -47,6 +47,7 @@
#define SZ_8G _AC(0x200000000, ULL)
#define SZ_16G _AC(0x400000000, ULL)
#define SZ_32G _AC(0x800000000, ULL)
+#define SZ_1T _AC(0x10000000000, ULL)
#define SZ_64T _AC(0x400000000000, ULL)
#endif /* __LINUX_SIZES_H__ */
--
2.32.0
Powered by blists - more mailing lists