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[PULL 11/40] exec: Introduce cpu_untagged_addr
From: |
Peter Maydell |
Subject: |
[PULL 11/40] exec: Introduce cpu_untagged_addr |
Date: |
Tue, 16 Feb 2021 16:16:29 +0000 |
From: Richard Henderson <richard.henderson@linaro.org>
Provide an identity fallback for target that do not
use tagged addresses.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210212184902.1251044-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
include/exec/cpu_ldst.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h
index e62f4fba001..d9dc1de414a 100644
--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -69,6 +69,13 @@ typedef uint64_t abi_ptr;
#define TARGET_ABI_FMT_ptr "%"PRIx64
#endif
+#ifndef TARGET_TAGGED_ADDRESSES
+static inline abi_ptr cpu_untagged_addr(CPUState *cs, abi_ptr x)
+{
+ return x;
+}
+#endif
+
/* All direct uses of g2h and h2g need to go away for usermode softmmu. */
#define g2h(x) ((void *)((uintptr_t)(abi_ptr)(x) + guest_base))
--
2.20.1
- [PULL 01/40] tcg: Introduce target-specific page data for user-only, (continued)
- [PULL 01/40] tcg: Introduce target-specific page data for user-only, Peter Maydell, 2021/02/16
- [PULL 03/40] exec: Use uintptr_t for guest_base, Peter Maydell, 2021/02/16
- [PULL 04/40] exec: Use uintptr_t in cpu_ldst.h, Peter Maydell, 2021/02/16
- [PULL 02/40] linux-user: Introduce PAGE_ANON, Peter Maydell, 2021/02/16
- [PULL 08/40] bsd-user: Tidy VERIFY_READ/VERIFY_WRITE, Peter Maydell, 2021/02/16
- [PULL 09/40] linux-user: Do not use guest_addr_valid for h2g_valid, Peter Maydell, 2021/02/16
- [PULL 05/40] exec: Improve types for guest_addr_valid, Peter Maydell, 2021/02/16
- [PULL 06/40] linux-user: Check for overflow in access_ok, Peter Maydell, 2021/02/16
- [PULL 10/40] linux-user: Fix guest_addr_valid vs reserved_va, Peter Maydell, 2021/02/16
- [PULL 07/40] linux-user: Tidy VERIFY_READ/VERIFY_WRITE, Peter Maydell, 2021/02/16
- [PULL 11/40] exec: Introduce cpu_untagged_addr,
Peter Maydell <=
- [PULL 12/40] exec: Use cpu_untagged_addr in g2h; split out g2h_untagged, Peter Maydell, 2021/02/16
- [PULL 13/40] linux-user: Explicitly untag memory management syscalls, Peter Maydell, 2021/02/16
- [PULL 14/40] linux-user: Use guest_range_valid in access_ok, Peter Maydell, 2021/02/16
- [PULL 15/40] exec: Rename guest_{addr,range}_valid to *_untagged, Peter Maydell, 2021/02/16
- [PULL 16/40] linux-user: Use cpu_untagged_addr in access_ok; split out *_untagged, Peter Maydell, 2021/02/16
- [PULL 17/40] linux-user: Move lock_user et al out of line, Peter Maydell, 2021/02/16
- [PULL 18/40] linux-user: Fix types in uaccess.c, Peter Maydell, 2021/02/16
- [PULL 19/40] linux-user: Handle tags in lock_user/unlock_user, Peter Maydell, 2021/02/16
- [PULL 20/40] linux-user/aarch64: Implement PR_TAGGED_ADDR_ENABLE, Peter Maydell, 2021/02/16