diff options
| author | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:31:21 +0530 |
|---|---|---|
| committer | Ishan Mittal <imittal@nvidia.com> | 2014-06-05 13:37:37 +0530 |
| commit | dce68ca8e1015cf5bcd33284c0c1c9191e79885d (patch) | |
| tree | 7fed5c66956b9ffeadac67750aa042fc9b70f1a1 /arch/arm/kernel | |
| parent | 60ca8709496cbcfe7dc931a2ec8786f82b2761eb (diff) | |
| parent | be67db109090b17b56eb8eb2190cd70700f107aa (diff) | |
Merge branch 'linux-3.10.40' into rel-21
Bug 200004122
Conflicts:
drivers/cpufreq/cpufreq.c
drivers/regulator/core.c
sound/soc/codecs/max98090.c
Change-Id: I9418a05ad5c56b2e902249218bac2fa594d99f56
Signed-off-by: Ishan Mittal <imittal@nvidia.com>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/machine_kexec.c | 7 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 30 |
2 files changed, 33 insertions, 4 deletions
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 163b160c69e9..c3ef920823b6 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -169,3 +169,10 @@ void machine_kexec(struct kimage *image) soft_restart(reboot_code_buffer_phys); } + +void arch_crash_save_vmcoreinfo(void) +{ +#ifdef CONFIG_ARM_LPAE + VMCOREINFO_CONFIG(ARM_LPAE); +#endif +} diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 137b485d1e2c..235b0365a65a 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -530,6 +530,7 @@ void __init dump_machine_table(void) int __init arm_add_memory(phys_addr_t start, phys_addr_t size) { struct membank *bank = &meminfo.bank[meminfo.nr_banks]; + u64 aligned_start; if (meminfo.nr_banks >= NR_BANKS) { printk(KERN_CRIT "NR_BANKS too low, " @@ -542,10 +543,16 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size) * Size is appropriately rounded down, start is rounded up. */ size -= start & ~PAGE_MASK; - bank->start = PAGE_ALIGN(start); + aligned_start = PAGE_ALIGN(start); -#ifndef CONFIG_ARM_LPAE - if (bank->start + size < bank->start) { +#ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT + if (aligned_start > ULONG_MAX) { + printk(KERN_CRIT "Ignoring memory at 0x%08llx outside " + "32-bit physical address space\n", (long long)start); + return -EINVAL; + } + + if (aligned_start + size > ULONG_MAX) { printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in " "32-bit physical address space\n", (long long)start); /* @@ -553,10 +560,25 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size) * 32 bits, we use ULONG_MAX as the upper limit rather than 4GB. * This means we lose a page after masking. */ - size = ULONG_MAX - bank->start; + size = ULONG_MAX - aligned_start; } #endif + if (aligned_start < PHYS_OFFSET) { + if (aligned_start + size <= PHYS_OFFSET) { + pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n", + aligned_start, aligned_start + size); + return -EINVAL; + } + + pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n", + aligned_start, (u64)PHYS_OFFSET); + + size -= PHYS_OFFSET - aligned_start; + aligned_start = PHYS_OFFSET; + } + + bank->start = aligned_start; bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1); /* |