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| author |   Russell King <rmk+kernel@arm.linux.org.uk> | 2016-08-02 14:06:10 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-02 19:35:29 -0400 |
| commit | 0719392a61a9dbc2c850bc7bd1a17efba953fcf5 (patch) | |
| tree | 2917d9b55f4232296b1587891a51ffda5f33baa5 /arch | |
| parent | ARM: keystone: dts: add psci command definition (diff) | |
| download | linux-dev-0719392a61a9dbc2c850bc7bd1a17efba953fcf5.tar.xz linux-dev-0719392a61a9dbc2c850bc7bd1a17efba953fcf5.zip | |
ARM: kexec: fix kexec for Keystone 2
Provide kexec with the boot view of memory by overriding the normal
kexec translation functions added in a previous patch. We also need to
fix a call to memblock in machine_kexec_prepare() so that we provide it
with a running-view physical address rather than a boot- view physical
address.
Link: http://lkml.kernel.org/r/E1b8koa-0004Hl-Ey@rmk-PC.armlinux.org.uk
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Pratyush Anand <panand@redhat.com>
Cc: Vitaly Andrianov <vitalya@ti.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/kexec.h | 24 | ||||
| -rw-r--r-- | arch/arm/kernel/machine_kexec.c | 2 |
2 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h index c2b9b4bdec00..1869af6bac5c 100644 --- a/arch/arm/include/asm/kexec.h +++ b/arch/arm/include/asm/kexec.h @@ -53,6 +53,30 @@ static inline void crash_setup_regs(struct pt_regs *newregs, /* Function pointer to optional machine-specific reinitialization */ extern void (*kexec_reinit)(void); +static inline unsigned long phys_to_boot_phys(phys_addr_t phys) +{ + return phys_to_idmap(phys); +} +#define phys_to_boot_phys phys_to_boot_phys + +static inline phys_addr_t boot_phys_to_phys(unsigned long entry) +{ + return idmap_to_phys(entry); +} +#define boot_phys_to_phys boot_phys_to_phys + +static inline unsigned long page_to_boot_pfn(struct page *page) +{ + return page_to_pfn(page) + (arch_phys_to_idmap_offset >> PAGE_SHIFT); +} +#define page_to_boot_pfn page_to_boot_pfn + +static inline struct page *boot_pfn_to_page(unsigned long boot_pfn) +{ + return pfn_to_page(boot_pfn - (arch_phys_to_idmap_offset >> PAGE_SHIFT)); +} +#define boot_pfn_to_page boot_pfn_to_page + #endif /* __ASSEMBLY__ */ #endif /* CONFIG_KEXEC */ diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 59fd0e24c56b..b18c1ea56bed 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -57,7 +57,7 @@ int machine_kexec_prepare(struct kimage *image) for (i = 0; i < image->nr_segments; i++) { current_segment = &image->segment[i]; - if (!memblock_is_region_memory(current_segment->mem, + if (!memblock_is_region_memory(idmap_to_phys(current_segment->mem), current_segment->memsz)) return -EINVAL; |