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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org
Subject: [PATCH v3 03/18] accel/tcg: Add block comment for probe_access
Date: Tue, 21 Apr 2020 21:32:54 -0700	[thread overview]
Message-ID: <20200422043309.18430-4-richard.henderson@linaro.org> (raw)
In-Reply-To: <20200422043309.18430-1-richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/exec/exec-all.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 350c4b451b..d656a1f05c 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -330,6 +330,23 @@ static inline void tlb_flush_by_mmuidx_all_cpus_synced(CPUState *cpu,
 {
 }
 #endif
+/**
+ * probe_access:
+ * @env: CPUArchState
+ * @addr: guest virtual address to look up
+ * @size: size of the access
+ * @access_type: read, write or execute permission
+ * @mmu_idx: MMU index to use for lookup
+ * @retaddr: return address for unwinding
+ *
+ * Look up the guest virtual address @addr.  Raise an exception if the
+ * page does not satisfy @access_type.  Raise an exception if the
+ * access (@addr, @size) hits a watchpoint.  For writes, mark a clean
+ * page as dirty.
+ *
+ * Finally, return the host address for a page that is backed by RAM,
+ * or NULL if the page requires I/O.
+ */
 void *probe_access(CPUArchState *env, target_ulong addr, int size,
                    MMUAccessType access_type, int mmu_idx, uintptr_t retaddr);
 
-- 
2.20.1



  parent reply	other threads:[~2020-04-22  4:36 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-22  4:32 [PATCH v3 00/18] target/arm: sve load/store improvements Richard Henderson
2020-04-22  4:32 ` [PATCH v3 01/18] exec: Add block comments for watchpoint routines Richard Henderson
2020-04-27  9:27   ` Peter Maydell
2020-04-22  4:32 ` [PATCH v3 02/18] exec: Fix cpu_watchpoint_address_matches address length Richard Henderson
2020-04-27  9:28   ` Peter Maydell
2020-04-22  4:32 ` Richard Henderson [this message]
2020-04-22  4:32 ` [PATCH v3 04/18] accel/tcg: Add probe_access_flags Richard Henderson
2020-04-27 10:48   ` Peter Maydell
2020-04-27 16:00     ` Richard Henderson
2020-05-04  9:39       ` Peter Maydell
2020-04-22  4:32 ` [PATCH v3 05/18] accel/tcg: Add endian-specific cpu_{ld, st}* operations Richard Henderson
2020-04-27  9:46   ` Peter Maydell
2020-04-22  4:32 ` [PATCH v3 06/18] target/arm: Use cpu_*_data_ra for sve_ldst_tlb_fn Richard Henderson
2020-04-27 10:51   ` Peter Maydell
2020-04-22  4:32 ` [PATCH v3 07/18] target/arm: Drop manual handling of set/clear_helper_retaddr Richard Henderson
2020-04-22  4:32 ` [PATCH v3 08/18] target/arm: Add sve infrastructure for page lookup Richard Henderson
2020-04-27 11:00   ` Peter Maydell
2020-04-22  4:33 ` [PATCH v3 09/18] target/arm: Adjust interface of sve_ld1_host_fn Richard Henderson
2020-04-22  4:33 ` [PATCH v3 10/18] target/arm: Use SVEContLdSt in sve_ld1_r Richard Henderson
2020-04-22  4:33 ` [PATCH v3 11/18] target/arm: Handle watchpoints " Richard Henderson
2020-04-22  4:33 ` [PATCH v3 12/18] target/arm: Use SVEContLdSt for multi-register contiguous loads Richard Henderson
2020-04-22  4:33 ` [PATCH v3 13/18] target/arm: Update contiguous first-fault and no-fault loads Richard Henderson
2020-04-27 11:03   ` Peter Maydell
2020-04-27 16:16     ` Richard Henderson
2020-04-27 16:32       ` Peter Maydell
2020-04-27 16:45         ` Richard Henderson
2020-04-27 18:38           ` Peter Maydell
2020-04-28 15:02             ` Richard Henderson
2020-04-22  4:33 ` [PATCH v3 14/18] target/arm: Use SVEContLdSt for contiguous stores Richard Henderson
2020-04-22  4:33 ` [PATCH v3 15/18] target/arm: Reuse sve_probe_page for gather first-fault loads Richard Henderson
2020-04-22  4:33 ` [PATCH v3 16/18] target/arm: Reuse sve_probe_page for scatter stores Richard Henderson
2020-04-22  4:33 ` [PATCH v3 17/18] target/arm: Reuse sve_probe_page for gather loads Richard Henderson
2020-04-22  4:33 ` [PATCH v3 18/18] target/arm: Remove sve_memopidx Richard Henderson
2020-04-22  5:37 ` [PATCH v3 00/18] target/arm: sve load/store improvements no-reply

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