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-rw-r--r--arch/x86/xen/setup.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index b3e3796106..380591028c 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -38,9 +38,6 @@
#define GB(x) ((uint64_t)(x) * 1024 * 1024 * 1024)
-/* Amount of extra memory space we add to the e820 ranges */
-struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS] __initdata;
-
/* Number of pages released from the initial allocation. */
unsigned long xen_released_pages;
@@ -64,18 +61,6 @@ static struct {
} xen_remap_buf __initdata __aligned(PAGE_SIZE);
static unsigned long xen_remap_mfn __initdata = INVALID_P2M_ENTRY;
-/*
- * The maximum amount of extra memory compared to the base size. The
- * main scaling factor is the size of struct page. At extreme ratios
- * of base:extra, all the base memory can be filled with page
- * structures for the extra memory, leaving no space for anything
- * else.
- *
- * 10x seems like a reasonable balance between scaling flexibility and
- * leaving a practically usable system.
- */
-#define EXTRA_MEM_RATIO (10)
-
static bool xen_512gb_limit __initdata = IS_ENABLED(CONFIG_XEN_512GB);
static void __init xen_parse_512gb(void)
@@ -96,35 +81,6 @@ static void __init xen_parse_512gb(void)
xen_512gb_limit = val;
}
-static void __init xen_add_extra_mem(unsigned long start_pfn,
- unsigned long n_pfns)
-{
- int i;
-
- /*
- * No need to check for zero size, should happen rarely and will only
- * write a new entry regarded to be unused due to zero size.
- */
- for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
- /* Add new region. */
- if (xen_extra_mem[i].n_pfns == 0) {
- xen_extra_mem[i].start_pfn = start_pfn;
- xen_extra_mem[i].n_pfns = n_pfns;
- break;
- }
- /* Append to existing region. */
- if (xen_extra_mem[i].start_pfn + xen_extra_mem[i].n_pfns ==
- start_pfn) {
- xen_extra_mem[i].n_pfns += n_pfns;
- break;
- }
- }
- if (i == XEN_EXTRA_MEM_MAX_REGIONS)
- printk(KERN_WARNING "Warning: not enough extra memory regions\n");
-
- memblock_reserve(PFN_PHYS(start_pfn), PFN_PHYS(n_pfns));
-}
-
static void __init xen_del_extra_mem(unsigned long start_pfn,
unsigned long n_pfns)
{