From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: deller@kernel.org, peter.maydell@linaro.org,
alex.bennee@linaro.org, linux-parisc@vger.kernel.org,
qemu-arm@nongnu.org
Subject: [PATCH v2 01/21] accel/tcg: Assert noreturn from write-only page for atomics
Date: Sat, 5 Oct 2024 13:05:40 -0700 [thread overview]
Message-ID: <20241005200600.493604-2-richard.henderson@linaro.org> (raw)
In-Reply-To: <20241005200600.493604-1-richard.henderson@linaro.org>
There should be no "just in case"; the page is already
in the tlb, and known to be not readable.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
accel/tcg/cputlb.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 117b516739..fd6459b695 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/cputlb.c
@@ -1852,10 +1852,9 @@ static void *atomic_mmu_lookup(CPUState *cpu, vaddr addr, MemOpIdx oi,
/*
* Since we don't support reads and writes to different
* addresses, and we do have the proper page loaded for
- * write, this shouldn't ever return. But just in case,
- * handle via stop-the-world.
+ * write, this shouldn't ever return.
*/
- goto stop_the_world;
+ g_assert_not_reached();
}
/* Collect tlb flags for read. */
tlb_addr |= tlbe->addr_read;
--
2.43.0
next prev parent reply other threads:[~2024-10-05 20:08 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-05 20:05 [PATCH v2 00/21] accel/tcg: Introduce tlb_fill_align hook Richard Henderson
2024-10-05 20:05 ` Richard Henderson [this message]
2024-10-07 20:58 ` [PATCH v2 01/21] accel/tcg: Assert noreturn from write-only page for atomics Helge Deller
2024-10-08 14:04 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 02/21] accel/tcg: Expand tlb_fill for 3 callers Richard Henderson
2024-10-07 21:01 ` Helge Deller
2024-10-08 14:04 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 03/21] include/exec/memop: Move get_alignment_bits from tcg.h Richard Henderson
2024-10-07 21:02 ` Helge Deller
2024-10-08 14:04 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 04/21] include/exec/memop: Rename get_alignment_bits Richard Henderson
2024-10-07 21:03 ` Helge Deller
2024-10-08 14:05 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 05/21] include/exec/memop: Introduce memop_atomicity_bits Richard Henderson
2024-10-07 21:04 ` Helge Deller
2024-10-08 14:05 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 06/21] hw/core/tcg-cpu-ops: Introduce tlb_fill_align hook Richard Henderson
2024-10-07 21:09 ` Helge Deller
2024-10-08 14:12 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 07/21] accel/tcg: Use the " Richard Henderson
2024-10-07 21:13 ` Helge Deller
2024-10-08 14:12 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 08/21] target/hppa: Add MemOp argument to hppa_get_physical_address Richard Henderson
2024-10-07 21:14 ` Helge Deller
2024-10-05 20:05 ` [PATCH v2 09/21] target/hppa: Perform access rights before protection id check Richard Henderson
2024-10-07 21:15 ` Helge Deller
2024-10-05 20:05 ` [PATCH v2 10/21] target/hppa: Fix priority of T, D, and B page faults Richard Henderson
2024-10-07 21:16 ` Helge Deller
2024-10-05 20:05 ` [PATCH v2 11/21] target/hppa: Handle alignment faults in hppa_get_physical_address Richard Henderson
2024-10-07 21:18 ` Helge Deller
2024-10-05 20:05 ` [PATCH v2 12/21] target/hppa: Add hppa_cpu_tlb_fill_align Richard Henderson
2024-10-07 21:19 ` Helge Deller
2024-10-05 20:05 ` [PATCH v2 13/21] target/arm: Pass MemOp to get_phys_addr Richard Henderson
2024-10-07 21:20 ` Helge Deller
2024-10-08 14:45 ` Peter Maydell
2024-10-08 17:32 ` Richard Henderson
2024-10-09 13:59 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 14/21] target/arm: Pass MemOp to get_phys_addr_with_space_nogpc Richard Henderson
2024-10-07 21:21 ` Helge Deller
2024-10-08 14:35 ` Peter Maydell
2024-10-08 17:50 ` Richard Henderson
2024-10-05 20:05 ` [PATCH v2 15/21] target/arm: Pass MemOp to get_phys_addr_gpc Richard Henderson
2024-10-07 21:21 ` Helge Deller
2024-10-08 14:26 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 16/21] target/arm: Pass MemOp to get_phys_addr_nogpc Richard Henderson
2024-10-07 21:22 ` Helge Deller
2024-10-08 14:25 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 17/21] target/arm: Pass MemOp through get_phys_addr_twostage Richard Henderson
2024-10-07 21:22 ` Helge Deller
2024-10-08 14:24 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 18/21] target/arm: Pass MemOp to get_phys_addr_lpae Richard Henderson
2024-10-07 21:23 ` Helge Deller
2024-10-08 14:24 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 19/21] target/arm: Move device detection earlier in get_phys_addr_lpae Richard Henderson
2024-10-07 21:25 ` Helge Deller
2024-10-08 14:22 ` Peter Maydell
2024-10-05 20:05 ` [PATCH v2 20/21] target/arm: Add arm_cpu_tlb_fill_align Richard Henderson
2024-10-07 21:26 ` Helge Deller
2024-10-08 14:22 ` Peter Maydell
2024-10-05 20:06 ` [PATCH v2 21/21] target/arm: Fix alignment fault priority in get_phys_addr_lpae Richard Henderson
2024-10-08 14:23 ` Peter Maydell
2024-10-07 20:55 ` [PATCH v2 00/21] accel/tcg: Introduce tlb_fill_align hook Helge Deller
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