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| author | David Hildenbrand <david@redhat.com> | 2019-08-30 12:09:58 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-09-03 08:34:18 -0700 |
| commit | fef39ccd567032d3ad520ed80f3576068e6eb2e3 (patch) | |
| tree | dd2926590265451d7e806af7dc3c8c9eefbed2fa /accel/tcg/user-exec.c | |
| parent | 9cd9cdaefc2be7a7e26684734bd334b717c50e5a (diff) | |
| download | qemu-fef39ccd567032d3ad520ed80f3576068e6eb2e3.zip qemu-fef39ccd567032d3ad520ed80f3576068e6eb2e3.tar.gz qemu-fef39ccd567032d3ad520ed80f3576068e6eb2e3.tar.bz2 | |
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 <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190830100959.26615-2-david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/tcg/user-exec.c')
| -rw-r--r-- | accel/tcg/user-exec.c | 6 |
1 files changed, 4 insertions, 2 deletions
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__) |