diff options
Diffstat (limited to 'cpu-target.c')
| -rw-r--r-- | cpu-target.c | 209 |
1 files changed, 23 insertions, 186 deletions
diff --git a/cpu-target.c b/cpu-target.c index 667688332c..5aa6c4b0c6 100644 --- a/cpu-target.c +++ b/cpu-target.c @@ -19,22 +19,13 @@ #include "qemu/osdep.h" #include "qapi/error.h" - -#include "exec/target_page.h" -#include "exec/page-protection.h" -#include "hw/qdev-core.h" -#include "hw/qdev-properties.h" #include "qemu/error-report.h" #include "qemu/qemu-print.h" #include "migration/vmstate.h" -#ifdef CONFIG_USER_ONLY -#include "qemu.h" -#include "user/page-protection.h" -#else +#ifndef CONFIG_USER_ONLY #include "hw/core/sysemu-cpu-ops.h" -#include "exec/address-spaces.h" -#include "exec/memory.h" #endif +#include "system/accel-ops.h" #include "system/cpus.h" #include "system/tcg.h" #include "exec/tswap.h" @@ -42,28 +33,34 @@ #include "exec/cpu-common.h" #include "exec/exec-all.h" #include "exec/tb-flush.h" -#include "exec/translation-block.h" #include "exec/log.h" -#include "hw/core/accel-cpu.h" +#include "accel/accel-cpu-target.h" #include "trace/trace-root.h" #include "qemu/accel.h" +#include "hw/core/cpu.h" #ifndef CONFIG_USER_ONLY static int cpu_common_post_load(void *opaque, int version_id) { - CPUState *cpu = opaque; - - /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the - version_id is increased. */ - cpu->interrupt_request &= ~0x01; - tlb_flush(cpu); - - /* loadvm has just updated the content of RAM, bypassing the - * usual mechanisms that ensure we flush TBs for writes to - * memory we've translated code from. So we must flush all TBs, - * which will now be stale. - */ - tb_flush(cpu); + if (tcg_enabled()) { + CPUState *cpu = opaque; + + /* + * 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the + * version_id is increased. + */ + cpu->interrupt_request &= ~0x01; + + tlb_flush(cpu); + + /* + * loadvm has just updated the content of RAM, bypassing the + * usual mechanisms that ensure we flush TBs for writes to + * memory we've translated code from. So we must flush all TBs, + * which will now be stale. + */ + tb_flush(cpu); + } return 0; } @@ -134,9 +131,6 @@ const VMStateDescription vmstate_cpu_common = { bool cpu_exec_realizefn(CPUState *cpu, Error **errp) { - /* cache the cpu class for the hotpath */ - cpu->cc = CPU_GET_CLASS(cpu); - if (!accel_cpu_common_realize(cpu, errp)) { return false; } @@ -180,72 +174,6 @@ void cpu_exec_unrealizefn(CPUState *cpu) accel_cpu_common_unrealize(cpu); } -/* - * This can't go in hw/core/cpu.c because that file is compiled only - * once for both user-mode and system builds. - */ -static const Property cpu_common_props[] = { -#ifdef CONFIG_USER_ONLY - /* - * Create a property for the user-only object, so users can - * adjust prctl(PR_SET_UNALIGN) from the command-line. - * Has no effect if the target does not support the feature. - */ - DEFINE_PROP_BOOL("prctl-unalign-sigbus", CPUState, - prctl_unalign_sigbus, false), -#else - /* - * Create a memory property for system CPU object, so users can - * wire up its memory. The default if no link is set up is to use - * the system address space. - */ - DEFINE_PROP_LINK("memory", CPUState, memory, TYPE_MEMORY_REGION, - MemoryRegion *), -#endif -}; - -#ifndef CONFIG_USER_ONLY -static bool cpu_get_start_powered_off(Object *obj, Error **errp) -{ - CPUState *cpu = CPU(obj); - return cpu->start_powered_off; -} - -static void cpu_set_start_powered_off(Object *obj, bool value, Error **errp) -{ - CPUState *cpu = CPU(obj); - cpu->start_powered_off = value; -} -#endif - -void cpu_class_init_props(DeviceClass *dc) -{ -#ifndef CONFIG_USER_ONLY - ObjectClass *oc = OBJECT_CLASS(dc); - - /* - * We can't use DEFINE_PROP_BOOL in the Property array for this - * property, because we want this to be settable after realize. - */ - object_class_property_add_bool(oc, "start-powered-off", - cpu_get_start_powered_off, - cpu_set_start_powered_off); -#endif - - device_class_set_props(dc, cpu_common_props); -} - -void cpu_exec_initfn(CPUState *cpu) -{ - cpu->as = NULL; - cpu->num_ases = 0; - -#ifndef CONFIG_USER_ONLY - cpu->memory = get_system_memory(); - object_ref(OBJECT(cpu->memory)); -#endif -} - char *cpu_model_from_type(const char *typename) { const char *suffix = "-" CPU_RESOLVING_TYPE; @@ -372,97 +300,6 @@ void cpu_abort(CPUState *cpu, const char *fmt, ...) abort(); } -/* physical memory access (slow version, mainly for debug) */ -#if defined(CONFIG_USER_ONLY) -int cpu_memory_rw_debug(CPUState *cpu, vaddr addr, - void *ptr, size_t len, bool is_write) -{ - int flags; - vaddr l, page; - void * p; - uint8_t *buf = ptr; - ssize_t written; - int ret = -1; - int fd = -1; - - while (len > 0) { - page = addr & TARGET_PAGE_MASK; - l = (page + TARGET_PAGE_SIZE) - addr; - if (l > len) - l = len; - flags = page_get_flags(page); - if (!(flags & PAGE_VALID)) { - goto out_close; - } - if (is_write) { - if (flags & PAGE_WRITE) { - /* XXX: this code should not depend on lock_user */ - p = lock_user(VERIFY_WRITE, addr, l, 0); - if (!p) { - goto out_close; - } - memcpy(p, buf, l); - unlock_user(p, addr, l); - } else { - /* Bypass the host page protection using ptrace. */ - if (fd == -1) { - fd = open("/proc/self/mem", O_WRONLY); - if (fd == -1) { - goto out; - } - } - /* - * If there is a TranslationBlock and we weren't bypassing the - * host page protection, the memcpy() above would SEGV, - * ultimately leading to page_unprotect(). So invalidate the - * translations manually. Both invalidation and pwrite() must - * be under mmap_lock() in order to prevent the creation of - * another TranslationBlock in between. - */ - mmap_lock(); - tb_invalidate_phys_range(addr, addr + l - 1); - written = pwrite(fd, buf, l, - (off_t)(uintptr_t)g2h_untagged(addr)); - mmap_unlock(); - if (written != l) { - goto out_close; - } - } - } else if (flags & PAGE_READ) { - /* XXX: this code should not depend on lock_user */ - p = lock_user(VERIFY_READ, addr, l, 1); - if (!p) { - goto out_close; - } - memcpy(buf, p, l); - unlock_user(p, addr, 0); - } else { - /* Bypass the host page protection using ptrace. */ - if (fd == -1) { - fd = open("/proc/self/mem", O_RDONLY); - if (fd == -1) { - goto out; - } - } - if (pread(fd, buf, l, - (off_t)(uintptr_t)g2h_untagged(addr)) != l) { - goto out_close; - } - } - len -= l; - buf += l; - addr += l; - } - ret = 0; -out_close: - if (fd != -1) { - close(fd); - } -out: - return ret; -} -#endif - bool target_words_bigendian(void) { return TARGET_BIG_ENDIAN; |