diff mbox series

[v5,11/55] cputlb: document get_page_addr_code

Message ID 20191014104948.4291-12-alex.bennee@linaro.org (mailing list archive)
State New, archived
Headers show
Series Support for TCG plugins | expand

Commit Message

Alex Bennée Oct. 14, 2019, 10:49 a.m. UTC 
From: "Emilio G. Cota" <cota@braap.org>

Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/exec/exec-all.h | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 49db07ba0b..6352316de1 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -487,7 +487,15 @@  void mmap_lock(void);
 void mmap_unlock(void);
 bool have_mmap_lock(void);
 
-static inline tb_page_addr_t get_page_addr_code(CPUArchState *env1, target_ulong addr)
+/**
+ * get_page_addr_code() - user-mode version
+ * @env: CPUArchState
+ * @addr: guest virtual address of guest code
+ *
+ * Returns @addr.
+ */
+static inline tb_page_addr_t get_page_addr_code(CPUArchState *env,
+                                                target_ulong addr)
 {
     return addr;
 }
@@ -495,8 +503,18 @@  static inline tb_page_addr_t get_page_addr_code(CPUArchState *env1, target_ulong
 static inline void mmap_lock(void) {}
 static inline void mmap_unlock(void) {}
 
-/* cputlb.c */
-tb_page_addr_t get_page_addr_code(CPUArchState *env1, target_ulong addr);
+/**
+ * get_page_addr_code() - full-system version
+ * @env: CPUArchState
+ * @addr: guest virtual address of guest code
+ *
+ * If we cannot translate and execute from the entire RAM page, or if
+ * the region is not backed by RAM, returns -1. Otherwise, returns the
+ * ram_addr_t corresponding to the guest code at @addr.
+ *
+ * Note: this function can trigger an exception.
+ */
+tb_page_addr_t get_page_addr_code(CPUArchState *env, target_ulong addr);
 
 void tlb_reset_dirty(CPUState *cpu, ram_addr_t start1, ram_addr_t length);
 void tlb_set_dirty(CPUState *cpu, target_ulong vaddr);