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-rw-r--r--virt/kvm/arm/mmu.c80
1 files changed, 59 insertions, 21 deletions
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 394f41a65732..7f6a944db23d 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -734,30 +734,13 @@ int create_hyp_mappings(void *from, void *to, pgprot_t prot)
return 0;
}
-/**
- * create_hyp_io_mappings - Map IO into both kernel and HYP
- * @phys_addr: The physical start address which gets mapped
- * @size: Size of the region being mapped
- * @kaddr: Kernel VA for this mapping
- * @haddr: HYP VA for this mapping
- */
-int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
- void __iomem **kaddr,
- void __iomem **haddr)
+static int __create_hyp_private_mapping(phys_addr_t phys_addr, size_t size,
+ unsigned long *haddr, pgprot_t prot)
{
pgd_t *pgd = hyp_pgd;
unsigned long base;
int ret = 0;
- *kaddr = ioremap(phys_addr, size);
- if (!*kaddr)
- return -ENOMEM;
-
- if (is_kernel_in_hyp_mode()) {
- *haddr = *kaddr;
- return 0;
- }
-
mutex_lock(&kvm_hyp_pgd_mutex);
/*
@@ -791,19 +774,74 @@ int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
ret = __create_hyp_mappings(pgd, __kvm_idmap_ptrs_per_pgd(),
base, base + size,
- __phys_to_pfn(phys_addr), PAGE_HYP_DEVICE);
+ __phys_to_pfn(phys_addr), prot);
if (ret)
goto out;
- *haddr = (void __iomem *)base + offset_in_page(phys_addr);
+ *haddr = base + offset_in_page(phys_addr);
out:
+ return ret;
+}
+
+/**
+ * create_hyp_io_mappings - Map IO into both kernel and HYP
+ * @phys_addr: The physical start address which gets mapped
+ * @size: Size of the region being mapped
+ * @kaddr: Kernel VA for this mapping
+ * @haddr: HYP VA for this mapping
+ */
+int create_hyp_io_mappings(phys_addr_t phys_addr, size_t size,
+ void __iomem **kaddr,
+ void __iomem **haddr)
+{
+ unsigned long addr;
+ int ret;
+
+ *kaddr = ioremap(phys_addr, size);
+ if (!*kaddr)
+ return -ENOMEM;
+
+ if (is_kernel_in_hyp_mode()) {
+ *haddr = *kaddr;
+ return 0;
+ }
+
+ ret = __create_hyp_private_mapping(phys_addr, size,
+ &addr, PAGE_HYP_DEVICE);
if (ret) {
iounmap(*kaddr);
*kaddr = NULL;
+ *haddr = NULL;
+ return ret;
+ }
+
+ *haddr = (void __iomem *)addr;
+ return 0;
+}
+
+/**
+ * create_hyp_exec_mappings - Map an executable range into HYP
+ * @phys_addr: The physical start address which gets mapped
+ * @size: Size of the region being mapped
+ * @haddr: HYP VA for this mapping
+ */
+int create_hyp_exec_mappings(phys_addr_t phys_addr, size_t size,
+ void **haddr)
+{
+ unsigned long addr;
+ int ret;
+
+ BUG_ON(is_kernel_in_hyp_mode());
+
+ ret = __create_hyp_private_mapping(phys_addr, size,
+ &addr, PAGE_HYP_EXEC);
+ if (ret) {
+ *haddr = NULL;
return ret;
}
+ *haddr = (void *)addr;
return 0;
}