Commit d24981d3 authored by Juan Quintela's avatar Juan Quintela
Browse files

Only TCG needs TLB handling 



Refactor the code that is only needed for tcg to an static function.
Call that only when tcg is enabled.  We can't refactor to a dummy
function in the kvm case, as qemu can be compiled at the same time
with tcg and kvm.

Signed-off-by: default avatarJuan Quintela <quintela@redhat.com>
parent aac844ed

exec.c

+21 −10
Original line number Diff line number Diff line
@@ -1824,11 +1824,29 @@ void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr) 
            TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *));

}



static void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t end,

                                      uintptr_t length)

{

    uintptr_t start1;



    /* we modify the TLB cache so that the dirty bit will be set again

       when accessing the range */

    start1 = (uintptr_t)qemu_safe_ram_ptr(start);

    /* Check that we don't span multiple blocks - this breaks the

       address comparisons below.  */

    if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1

            != (end - 1) - start) {

        abort();

    }

    cpu_tlb_reset_dirty_all(start1, length);



}



/* Note: start and end must be within the same ram block.  */

void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,

                                     int dirty_flags)

{

    uintptr_t length, start1;

    uintptr_t length;



    start &= TARGET_PAGE_MASK;

    end = TARGET_PAGE_ALIGN(end);
@@ -1838,16 +1856,9 @@ void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, 
        return;

    cpu_physical_memory_mask_dirty_range(start, length, dirty_flags);



    /* we modify the TLB cache so that the dirty bit will be set again

       when accessing the range */

    start1 = (uintptr_t)qemu_safe_ram_ptr(start);

    /* Check that we don't span multiple blocks - this breaks the

       address comparisons below.  */

    if ((uintptr_t)qemu_safe_ram_ptr(end - 1) - start1

            != (end - 1) - start) {

        abort();

    if (tcg_enabled()) {

        tlb_reset_dirty_range_all(start, end, length);

    }

    cpu_tlb_reset_dirty_all(start1, length);

}



int cpu_physical_memory_set_dirty_tracking(int enable)