Commit 15a356c4 authored by Pavel Dovgalyuk's avatar Pavel Dovgalyuk Committed by Paolo Bonzini
Browse files

cpu: flush TB cache when loading VMState 



Flushing TB cache is required because TBs key in the cache may match
different code which existed in the previous state.

Signed-off-by: default avatarPavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: default avatarMaria Klimushenkova <maria.klimushenkova@ispras.ru>
Message-Id: <20180110134846.12940.99993.stgit@pasha-VirtualBox>
[Add comment suggested by Peter Maydell. - Paolo]
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarPavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
parent 79f9c75e

exec.c

+7 −0
Original line number Diff line number Diff line
@@ -623,6 +623,13 @@ static int cpu_common_post_load(void *opaque, int version_id) 
    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;

}