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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 10/20] target/hppa: Fix priority of T, D, and B page faults
Date: Sat,  5 Oct 2024 08:25:41 -0700	[thread overview]
Message-ID: <20241005152551.307923-11-richard.henderson@linaro.org> (raw)
In-Reply-To: <20241005152551.307923-1-richard.henderson@linaro.org>

Drop the 'else' so that ret is overridden with the
highest priority fault.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/hppa/mem_helper.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c
index f027c494e2..f71cedd7a9 100644
--- a/target/hppa/mem_helper.c
+++ b/target/hppa/mem_helper.c
@@ -288,7 +288,7 @@ int hppa_get_physical_address(CPUHPPAState *env, vaddr addr, int mmu_idx,
     }
 
     /*
-     * In priority order, check for conditions which raise faults.
+     * In reverse priority order, check for conditions which raise faults.
      * Remove PROT bits that cover the condition we want to check,
      * so that the resulting PROT will force a re-check of the
      * architectural TLB entry for the next access.
@@ -299,13 +299,15 @@ int hppa_get_physical_address(CPUHPPAState *env, vaddr addr, int mmu_idx,
             /* The T bit is set -- Page Reference Fault.  */
             ret = EXCP_PAGE_REF;
         }
-    } else if (!ent->d) {
+    }
+    if (unlikely(!ent->d)) {
         prot &= PAGE_READ | PAGE_EXEC;
         if (type & PAGE_WRITE) {
             /* The D bit is not set -- TLB Dirty Bit Fault.  */
             ret = EXCP_TLB_DIRTY;
         }
-    } else if (unlikely(ent->b)) {
+    }
+    if (unlikely(ent->b)) {
         prot &= PAGE_READ | PAGE_EXEC;
         if (type & PAGE_WRITE) {
             /*
-- 
2.43.0



  parent reply	other threads:[~2024-10-05 15:30 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 ` [PATCH 01/20] accel/tcg: Assert noreturn from write-only page for atomics Richard Henderson
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 ` Richard Henderson [this message]
2024-10-07 21:25   ` [PATCH 10/20] target/hppa: Fix priority of T, D, and B page faults 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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