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-rw-r--r--arch/arm64/include/asm/kernel-pgtable.h26
-rw-r--r--arch/arm64/kernel/head.S2
-rw-r--r--arch/arm64/kernel/machine_kexec_file.c2
-rw-r--r--drivers/perf/arm_pmu_platform.c2
4 files changed, 17 insertions, 15 deletions
diff --git a/arch/arm64/include/asm/kernel-pgtable.h b/arch/arm64/include/asm/kernel-pgtable.h
index 02e59fa8f293..32d14f481f0c 100644
--- a/arch/arm64/include/asm/kernel-pgtable.h
+++ b/arch/arm64/include/asm/kernel-pgtable.h
@@ -64,28 +64,28 @@
#define EARLY_KASLR (0)
#endif
-#define EARLY_ENTRIES(vstart, vend, shift) \
- ((((vend) - 1) >> (shift)) - ((vstart) >> (shift)) + 1 + EARLY_KASLR)
+#define EARLY_ENTRIES(vstart, vend, shift, add) \
+ ((((vend) - 1) >> (shift)) - ((vstart) >> (shift)) + 1 + add)
-#define EARLY_PGDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, PGDIR_SHIFT))
+#define EARLY_PGDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, PGDIR_SHIFT, add))
#if SWAPPER_PGTABLE_LEVELS > 3
-#define EARLY_PUDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, PUD_SHIFT))
+#define EARLY_PUDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, PUD_SHIFT, add))
#else
-#define EARLY_PUDS(vstart, vend) (0)
+#define EARLY_PUDS(vstart, vend, add) (0)
#endif
#if SWAPPER_PGTABLE_LEVELS > 2
-#define EARLY_PMDS(vstart, vend) (EARLY_ENTRIES(vstart, vend, SWAPPER_TABLE_SHIFT))
+#define EARLY_PMDS(vstart, vend, add) (EARLY_ENTRIES(vstart, vend, SWAPPER_TABLE_SHIFT, add))
#else
-#define EARLY_PMDS(vstart, vend) (0)
+#define EARLY_PMDS(vstart, vend, add) (0)
#endif
-#define EARLY_PAGES(vstart, vend) ( 1 /* PGDIR page */ \
- + EARLY_PGDS((vstart), (vend)) /* each PGDIR needs a next level page table */ \
- + EARLY_PUDS((vstart), (vend)) /* each PUD needs a next level page table */ \
- + EARLY_PMDS((vstart), (vend))) /* each PMD needs a next level page table */
-#define INIT_DIR_SIZE (PAGE_SIZE * EARLY_PAGES(KIMAGE_VADDR, _end))
+#define EARLY_PAGES(vstart, vend, add) ( 1 /* PGDIR page */ \
+ + EARLY_PGDS((vstart), (vend), add) /* each PGDIR needs a next level page table */ \
+ + EARLY_PUDS((vstart), (vend), add) /* each PUD needs a next level page table */ \
+ + EARLY_PMDS((vstart), (vend), add)) /* each PMD needs a next level page table */
+#define INIT_DIR_SIZE (PAGE_SIZE * EARLY_PAGES(KIMAGE_VADDR, _end, EARLY_KASLR))
/* the initial ID map may need two extra pages if it needs to be extended */
#if VA_BITS < 48
@@ -93,7 +93,7 @@
#else
#define INIT_IDMAP_DIR_SIZE (INIT_IDMAP_DIR_PAGES * PAGE_SIZE)
#endif
-#define INIT_IDMAP_DIR_PAGES EARLY_PAGES(KIMAGE_VADDR, _end + MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE)
+#define INIT_IDMAP_DIR_PAGES EARLY_PAGES(KIMAGE_VADDR, _end + MAX_FDT_SIZE + SWAPPER_BLOCK_SIZE, 1)
/* Initial memory map size */
#if ARM64_KERNEL_USES_PMD_MAPS
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index cefe6a73ee54..814b6587ccb7 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -371,7 +371,9 @@ SYM_FUNC_END(create_idmap)
SYM_FUNC_START_LOCAL(create_kernel_mapping)
adrp x0, init_pg_dir
mov_q x5, KIMAGE_VADDR // compile time __va(_text)
+#ifdef CONFIG_RELOCATABLE
add x5, x5, x23 // add KASLR displacement
+#endif
adrp x6, _end // runtime __pa(_end)
adrp x3, _text // runtime __pa(_text)
sub x6, x6, x3 // _end - _text
diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c
index 889951291cc0..a11a6e14ba89 100644
--- a/arch/arm64/kernel/machine_kexec_file.c
+++ b/arch/arm64/kernel/machine_kexec_file.c
@@ -47,7 +47,7 @@ static int prepare_elf_headers(void **addr, unsigned long *sz)
u64 i;
phys_addr_t start, end;
- nr_ranges = 1; /* for exclusion of crashkernel region */
+ nr_ranges = 2; /* for exclusion of crashkernel region */
for_each_mem_range(i, &start, &end)
nr_ranges++;
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 513de1f54e2d..933b96e243b8 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -117,7 +117,7 @@ static int pmu_parse_irqs(struct arm_pmu *pmu)
if (num_irqs == 1) {
int irq = platform_get_irq(pdev, 0);
- if (irq && irq_is_percpu_devid(irq))
+ if ((irq > 0) && irq_is_percpu_devid(irq))
return pmu_parse_percpu_irq(pmu, irq);
}