From fef39ccd567032d3ad520ed80f3576068e6eb2e3 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Fri, 30 Aug 2019 12:09:58 +0200 Subject: tcg: Make probe_write() return a pointer to the host page ... similar to tlb_vaddr_to_host(); however, allow access to the host page except when TLB_NOTDIRTY or TLB_MMIO is set. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand Message-Id: <20190830100959.26615-2-david@redhat.com> Signed-off-by: Richard Henderson --- accel/tcg/user-exec.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'accel/tcg/user-exec.c') diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 625c33f..5720bf8 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -188,8 +188,8 @@ static inline int handle_cpu_signal(uintptr_t pc, siginfo_t *info, g_assert_not_reached(); } -void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx, - uintptr_t retaddr) +void *probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx, + uintptr_t retaddr) { g_assert(-(addr | TARGET_PAGE_MASK) >= size); @@ -202,6 +202,8 @@ void probe_write(CPUArchState *env, target_ulong addr, int size, int mmu_idx, retaddr); g_assert_not_reached(); } + + return size ? g2h(addr) : NULL; } #if defined(__i386__) -- cgit v1.1