qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[PULL 36/60] target/s390x: Use probe_access_flags in s390_probe_access


From: Richard Henderson
Subject: [PULL 36/60] target/s390x: Use probe_access_flags in s390_probe_access
Date: Tue, 2 Nov 2021 07:07:16 -0400

Not sure why the user-only code wasn't rewritten to use
probe_access_flags at the same time that the sysemu code
was converted.  For the purpose of user-only, this is an
exact replacement.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/tcg/mem_helper.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c
index 17e3f83641..362a30d99e 100644
--- a/target/s390x/tcg/mem_helper.c
+++ b/target/s390x/tcg/mem_helper.c
@@ -141,20 +141,12 @@ static int s390_probe_access(CPUArchState *env, 
target_ulong addr, int size,
                              MMUAccessType access_type, int mmu_idx,
                              bool nonfault, void **phost, uintptr_t ra)
 {
+#if defined(CONFIG_USER_ONLY)
+    return probe_access_flags(env, addr, access_type, mmu_idx,
+                              nonfault, phost, ra);
+#else
     int flags;
 
-#if defined(CONFIG_USER_ONLY)
-    flags = page_get_flags(addr);
-    if (!(flags & (access_type == MMU_DATA_LOAD ?  PAGE_READ : 
PAGE_WRITE_ORG))) {
-        env->__excp_addr = addr;
-        flags = (flags & PAGE_VALID) ? PGM_PROTECTION : PGM_ADDRESSING;
-        if (nonfault) {
-            return flags;
-        }
-        tcg_s390_program_interrupt(env, flags, ra);
-    }
-    *phost = g2h(env_cpu(env), addr);
-#else
     /*
      * For !CONFIG_USER_ONLY, we cannot rely on TLB_INVALID_MASK or haddr==NULL
      * to detect if there was an exception during tlb_fill().
@@ -173,8 +165,8 @@ static int s390_probe_access(CPUArchState *env, 
target_ulong addr, int size,
                              (access_type == MMU_DATA_STORE
                               ? BP_MEM_WRITE : BP_MEM_READ), ra);
     }
-#endif
     return 0;
+#endif
 }
 
 static int access_prepare_nf(S390Access *access, CPUS390XState *env,
-- 
2.25.1




reply via email to

[Prev in Thread] Current Thread [Next in Thread]