diff options
| author | KONRAD Frederic <fred.konrad@greensocs.com> | 2017-02-23 18:29:18 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2017-02-24 10:32:46 +0000 |
| commit | e3b9ca810980851f93f5719a7df2044c9435f003 (patch) | |
| tree | 599b323ab84d00be942903cbfebd37885966744e /include/exec | |
| parent | 857baec1d9e80947f0c1007c3a3d2331d62b4b53 (diff) | |
cputlb: introduce tlb_flush_* async work.
Some architectures allow to flush the tlb of other VCPUs. This is not a problem
when we have only one thread for all VCPUs but it definitely needs to be an
asynchronous work when we are in true multithreaded work.
We take the tb_lock() when doing this to avoid racing with other threads
which may be invalidating TB's at the same time. The alternative would
be to use proper atomic primitives to clear the tlb entries en-mass.
This patch doesn't do anything to protect other cputlb function being
called in MTTCG mode making cross vCPU changes.
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
[AJB: remove need for g_malloc on defer, make check fixes, tb_lock]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/exec-all.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 82f0e12327..c694e3482b 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -158,6 +158,7 @@ void tlb_set_page(CPUState *cpu, target_ulong vaddr, void tb_invalidate_phys_addr(AddressSpace *as, hwaddr addr); void probe_write(CPUArchState *env, target_ulong addr, int mmu_idx, uintptr_t retaddr); +void tlb_flush_page_all(target_ulong addr); #else static inline void tlb_flush_page(CPUState *cpu, target_ulong addr) { |