commit 5e98763c0ef55fbd8fe4fe8614825ab508543d32
author Richard Henderson <richard.henderson@linaro.org> Fri Sep 17 17:49:05 2021 -0700
committer Richard Henderson <richard.henderson@linaro.org> Tue Nov 02 07:00:52 2021 -0400
tree 12c38e52cfa5f4af884f736d4e5a9883e16eead1
parent 90113883af311121e22caf505eab55e2eea1aa8e

target/arm: Use cpu_loop_exit_sigsegv for mte tag lookup

Use the new os interface for raising the exception,
rather than calling arm_cpu_tlb_fill directly.

Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm/mte_helper.c

diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c
index 7241752..e09b7e4 100644
--- a/target/arm/mte_helper.c
+++ b/target/arm/mte_helper.c
@@ -84,10 +84,8 @@
     uintptr_t index;
 
     if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) {
-        /* SIGSEGV */
-        arm_cpu_tlb_fill(env_cpu(env), ptr, ptr_size, ptr_access,
-                         ptr_mmu_idx, false, ra);
-        g_assert_not_reached();
+        cpu_loop_exit_sigsegv(env_cpu(env), ptr, ptr_access,
+                              !(flags & PAGE_VALID), ra);
     }
 
     /* Require both MAP_ANON and PROT_MTE for the page. */