From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [PATCH v4 10/23] linux-user: Fix guest_addr_valid vs reserved_va
Date: Thu, 28 Jan 2021 12:41:28 -1000 [thread overview]
Message-ID: <20210128224141.638790-11-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210128224141.638790-1-richard.henderson@linaro.org>
We must always use GUEST_ADDR_MAX, because even 32-bit hosts can
use -R <reserved_va> to restrict the memory address of the guest.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/exec/cpu_ldst.h | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/include/exec/cpu_ldst.h b/include/exec/cpu_ldst.h
index 4e6ef3d542..e62f4fba00 100644
--- a/include/exec/cpu_ldst.h
+++ b/include/exec/cpu_ldst.h
@@ -72,11 +72,10 @@ typedef uint64_t abi_ptr;
/* 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))
-#if HOST_LONG_BITS <= TARGET_VIRT_ADDR_SPACE_BITS
-#define guest_addr_valid(x) (1)
-#else
-#define guest_addr_valid(x) ((x) <= GUEST_ADDR_MAX)
-#endif
+static inline bool guest_addr_valid(abi_ulong x)
+{
+ return x <= GUEST_ADDR_MAX;
+}
static inline bool guest_range_valid(abi_ulong start, abi_ulong len)
{
--
2.25.1
next prev parent reply other threads:[~2021-01-28 22:44 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-28 22:41 [PATCH v4 00/23] target-arm: Implement ARMv8.5-MemTag, user mode Richard Henderson
2021-01-28 22:41 ` [PATCH v4 01/23] tcg: Introduce target-specific page data for user-only Richard Henderson
2021-02-02 14:29 ` Peter Maydell
2021-02-03 2:40 ` Richard Henderson
2021-02-03 5:49 ` Richard Henderson
2021-02-03 15:33 ` Alex Bennée
2021-01-28 22:41 ` [PATCH v4 02/23] linux-user: Introduce PAGE_ANON Richard Henderson
2021-01-28 22:41 ` [PATCH v4 03/23] exec: Use uintptr_t for guest_base Richard Henderson
2021-02-02 14:31 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 04/23] exec: Use uintptr_t in cpu_ldst.h Richard Henderson
2021-02-02 14:32 ` Peter Maydell
2021-02-02 15:30 ` Philippe Mathieu-Daudé
2021-01-28 22:41 ` [PATCH v4 05/23] exec: Improve types for guest_addr_valid Richard Henderson
2021-02-02 14:33 ` Peter Maydell
2021-02-02 15:31 ` Philippe Mathieu-Daudé
2021-01-28 22:41 ` [PATCH v4 06/23] linux-user: Check for overflow in access_ok Richard Henderson
2021-01-28 22:41 ` [PATCH v4 07/23] linux-user: Tidy VERIFY_READ/VERIFY_WRITE Richard Henderson
2021-01-28 22:41 ` [PATCH v4 08/23] bsd-user: " Richard Henderson
2021-01-28 22:41 ` [PATCH v4 09/23] linux-user: Do not use guest_addr_valid for h2g_valid Richard Henderson
2021-02-02 14:34 ` Peter Maydell
2021-01-28 22:41 ` Richard Henderson [this message]
2021-02-02 14:35 ` [PATCH v4 10/23] linux-user: Fix guest_addr_valid vs reserved_va Peter Maydell
2021-01-28 22:41 ` [PATCH v4 11/23] exec: Add support for TARGET_TAGGED_ADDRESSES Richard Henderson
2021-02-02 15:05 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 12/23] linux-user/aarch64: Implement PR_TAGGED_ADDR_ENABLE Richard Henderson
2021-02-02 14:37 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 13/23] target/arm: Improve gen_top_byte_ignore Richard Henderson
2021-02-02 14:40 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 14/23] target/arm: Use the proper TBI settings for linux-user Richard Henderson
2021-02-02 14:41 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 15/23] linux-user/aarch64: Implement PR_MTE_TCF and PR_MTE_TAG Richard Henderson
2021-02-02 14:43 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 16/23] linux-user/aarch64: Implement PROT_MTE Richard Henderson
2021-01-28 22:41 ` [PATCH v4 17/23] target/arm: Split out syndrome.h from internals.h Richard Henderson
2021-02-02 14:44 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 18/23] linux-user/aarch64: Pass syndrome to EXC_*_ABORT Richard Henderson
2021-02-02 14:44 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 19/23] linux-user/aarch64: Signal SEGV_MTESERR for sync tag check fault Richard Henderson
2021-02-02 14:45 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 20/23] linux-user/aarch64: Signal SEGV_MTEAERR for async tag check error Richard Henderson
2021-02-02 14:46 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 21/23] target/arm: Add allocation tag storage for user mode Richard Henderson
2021-02-02 14:46 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 22/23] target/arm: Enable MTE for user-only Richard Henderson
2021-02-02 14:47 ` Peter Maydell
2021-01-28 22:41 ` [PATCH v4 23/23] tests/tcg/aarch64: Add mte smoke tests Richard Henderson
2021-02-02 14:49 ` Peter Maydell
2021-01-28 23:15 ` [PATCH v4 00/23] target-arm: Implement ARMv8.5-MemTag, user mode no-reply
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