From 7886cefe5ddd238c64d07eb037804f1aef24755c Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 19 Sep 2019 13:30:29 -0700 Subject: exec: Split out variable page size support to exec-vary.c The next patch will play a trick with "const" that will confuse the compiler about the uses of target_page_bits within exec.c. Moving everything to a new file prevents this confusion. No functional change so far. Reviewed-by: Alex Bennée Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Paolo Bonzini Signed-off-by: Richard Henderson --- exec.c | 34 ---------------------------------- 1 file changed, 34 deletions(-) (limited to 'exec.c') diff --git a/exec.c b/exec.c index fb0943cfed..5bf181d23e 100644 --- a/exec.c +++ b/exec.c @@ -91,11 +91,6 @@ AddressSpace address_space_memory; static MemoryRegion io_mem_unassigned; #endif -#ifdef TARGET_PAGE_BITS_VARY -int target_page_bits; -bool target_page_bits_decided; -#endif - CPUTailQ cpus = QTAILQ_HEAD_INITIALIZER(cpus); /* current CPU in the current thread. It is only valid inside @@ -109,37 +104,8 @@ int use_icount; uintptr_t qemu_host_page_size; intptr_t qemu_host_page_mask; -bool set_preferred_target_page_bits(int bits) -{ - /* The target page size is the lowest common denominator for all - * the CPUs in the system, so we can only make it smaller, never - * larger. And we can't make it smaller once we've committed to - * a particular size. - */ -#ifdef TARGET_PAGE_BITS_VARY - assert(bits >= TARGET_PAGE_BITS_MIN); - if (target_page_bits == 0 || target_page_bits > bits) { - if (target_page_bits_decided) { - return false; - } - target_page_bits = bits; - } -#endif - return true; -} - #if !defined(CONFIG_USER_ONLY) -static void finalize_target_page_bits(void) -{ -#ifdef TARGET_PAGE_BITS_VARY - if (target_page_bits == 0) { - target_page_bits = TARGET_PAGE_BITS_MIN; - } - target_page_bits_decided = true; -#endif -} - typedef struct PhysPageEntry PhysPageEntry; struct PhysPageEntry { -- cgit v1.2.3-55-g7522