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 01/20] accel/tcg: Assert noreturn from write-only page for atomics
Date: Sat, 5 Oct 2024 08:25:32 -0700 [thread overview]
Message-ID: <20241005152551.307923-2-richard.henderson@linaro.org> (raw)
In-Reply-To: <20241005152551.307923-1-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 15:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-05 15:25 [PATCH 00/20] accel/tcg: Introduce tlb_fill_align hook Richard Henderson
2024-10-05 15:25 ` Richard Henderson [this message]
2024-10-05 15:25 ` [PATCH 02/20] accel/tcg: Expand tlb_fill for 3 callers Richard Henderson
2024-10-07 21:16 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 03/20] include/exec/memop: Move get_alignment_bits from tcg.h Richard Henderson
2024-10-07 21:17 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 04/20] include/exec/memop: Rename get_alignment_bits Richard Henderson
2024-10-07 21:18 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 05/20] include/exec/memop: Introduce memop_atomicity_bits Richard Henderson
2024-10-05 15:25 ` [PATCH 06/20] hw/core/tcg-cpu-ops: Introduce tlb_fill_align hook Richard Henderson
2024-10-05 15:25 ` [PATCH 07/20] accel/tcg: Use the " Richard Henderson
2024-10-05 15:25 ` [PATCH 08/20] target/hppa: Add MemOp argument to hppa_get_physical_address Richard Henderson
2024-10-07 21:27 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 09/20] target/hppa: Perform access rights before protection id check Richard Henderson
2024-10-05 15:25 ` [PATCH 10/20] target/hppa: Fix priority of T, D, and B page faults Richard Henderson
2024-10-07 21:25 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 11/20] target/hppa: Handle alignment faults in hppa_get_physical_address Richard Henderson
2024-10-05 15:25 ` [PATCH 12/20] target/hppa: Add hppa_cpu_tlb_fill_align Richard Henderson
2024-10-05 15:25 ` [PATCH 13/20] target/arm: Pass MemOp to get_phys_addr Richard Henderson
2024-10-07 21:21 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 14/20] target/arm: Pass MemOp to get_phys_addr_with_space_nogpc Richard Henderson
2024-10-07 21:21 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 15/20] target/arm: Pass MemOp to get_phys_addr_gpc Richard Henderson
2024-10-07 21:21 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 16/20] target/arm: Pass MemOp to get_phys_addr_nogpc Richard Henderson
2024-10-07 21:22 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 17/20] target/arm: Pass MemOp through get_phys_addr_twostage Richard Henderson
2024-10-07 21:22 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 18/20] target/arm: Pass MemOp to get_phys_addr_lpae Richard Henderson
2024-10-07 21:22 ` Philippe Mathieu-Daudé
2024-10-05 15:25 ` [PATCH 19/20] target/arm: Move device detection earlier in get_phys_addr_lpae Richard Henderson
2024-10-05 15:25 ` [PATCH 20/20] target/arm: Fix alignment fault priority " Richard Henderson
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