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[v1,5/9] mips/tcg: Call probe_write() for CONFIG_USER_ONLY as well

Message ID 20190823100741.9621-6-david@redhat.com
State New
Headers show
Series [v1,1/9] s390x/tcg: Use guest_addr_valid() instead of h2g_valid() in probe_write_access() | expand

Commit Message

David Hildenbrand Aug. 23, 2019, 10:07 a.m. UTC 
Let's call it also for CONFIG_USER_ONLY. While at it, add a FIXME and get
rid of one local variable.

MIPS code probably needs a bigger refactoring in regards of
ensure_writable_pages(), similar to s390x, so for example, watchpoints
can be handled reliably later. The actually accessed addresses should
be probed only, not full pages.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/mips/op_helper.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index f88a3ab904..221e8bb1d7 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -4536,16 +4536,14 @@  static inline void ensure_writable_pages(CPUMIPSState *env,
                                          int mmu_idx,
                                          uintptr_t retaddr)
 {
-#if !defined(CONFIG_USER_ONLY)
-    target_ulong page_addr;
+    /* FIXME: Probe the actual accesses (pass and use a size) */
     if (unlikely(MSA_PAGESPAN(addr))) {
         /* first page */
         probe_write(env, addr, 0, mmu_idx, retaddr);
         /* second page */
-        page_addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
-        probe_write(env, page_addr, 0, mmu_idx, retaddr);
+        addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+        probe_write(env, addr, 0, mmu_idx, retaddr);
     }
-#endif
 }
 
 void helper_msa_st_b(CPUMIPSState *env, uint32_t wd,