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From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xenproject.org
Cc: Oleksandr_Tyshchenko@epam.com,
	Julien Grall <julien.grall@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Andrii Anisov <andrii_anisov@epam.com>
Subject: [PATCH MM-PART3 v2 02/12] xen/arm: mm: Rename create_xen_entries() to xen_pt_update()
Date: Tue, 14 May 2019 13:31:15 +0100	[thread overview]
Message-ID: <20190514123125.29086-3-julien.grall@arm.com> (raw)
In-Reply-To: <20190514123125.29086-1-julien.grall@arm.com>

create_xen_entries() is doing more than creating entries. It can also
modify and remove entries.

Rename the function to make clear what the function is actually doing.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>

---
    Changes in v2:
        - Add Andrii's reviewed-by
---
 xen/arch/arm/mm.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index b408de7c75..36e22fc9ad 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -970,11 +970,11 @@ enum xenmap_operation {
 
 static DEFINE_SPINLOCK(xen_pt_lock);
 
-static int create_xen_entries(enum xenmap_operation op,
-                              unsigned long virt,
-                              mfn_t mfn,
-                              unsigned long nr_mfns,
-                              unsigned int flags)
+static int xen_pt_update(enum xenmap_operation op,
+                         unsigned long virt,
+                         mfn_t mfn,
+                         unsigned long nr_mfns,
+                         unsigned int flags)
 {
     int rc = 0;
     unsigned long addr = virt, addr_end = addr + nr_mfns * PAGE_SIZE;
@@ -1067,25 +1067,24 @@ int map_pages_to_xen(unsigned long virt,
                      unsigned long nr_mfns,
                      unsigned int flags)
 {
-    return create_xen_entries(INSERT, virt, mfn, nr_mfns, flags);
+    return xen_pt_update(INSERT, virt, mfn, nr_mfns, flags);
 }
 
 int populate_pt_range(unsigned long virt, unsigned long nr_mfns)
 {
-    return create_xen_entries(RESERVE, virt, INVALID_MFN, nr_mfns, 0);
+    return xen_pt_update(RESERVE, virt, INVALID_MFN, nr_mfns, 0);
 }
 
 int destroy_xen_mappings(unsigned long v, unsigned long e)
 {
     ASSERT(v <= e);
-    return create_xen_entries(REMOVE, v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
+    return xen_pt_update(REMOVE, v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
 }
 
 int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int flags)
 {
     ASSERT(s <= e);
-    return create_xen_entries(MODIFY, s, INVALID_MFN, (e - s) >> PAGE_SHIFT,
-                              flags);
+    return xen_pt_update(MODIFY, s, INVALID_MFN, (e - s) >> PAGE_SHIFT, flags);
 }
 
 enum mg { mg_clear, mg_ro, mg_rw, mg_rx };
-- 
2.11.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xenproject.org
Cc: Oleksandr_Tyshchenko@epam.com,
	Julien Grall <julien.grall@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Andrii Anisov <andrii_anisov@epam.com>
Subject: [Xen-devel] [PATCH MM-PART3 v2 02/12] xen/arm: mm: Rename create_xen_entries() to xen_pt_update()
Date: Tue, 14 May 2019 13:31:15 +0100	[thread overview]
Message-ID: <20190514123125.29086-3-julien.grall@arm.com> (raw)
Message-ID: <20190514123115.2VQMX-D9tM4FswHrIH0G1cN2Lya3q__YQjWcDBudXGk@z> (raw)
In-Reply-To: <20190514123125.29086-1-julien.grall@arm.com>

create_xen_entries() is doing more than creating entries. It can also
modify and remove entries.

Rename the function to make clear what the function is actually doing.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>

---
    Changes in v2:
        - Add Andrii's reviewed-by
---
 xen/arch/arm/mm.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index b408de7c75..36e22fc9ad 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -970,11 +970,11 @@ enum xenmap_operation {
 
 static DEFINE_SPINLOCK(xen_pt_lock);
 
-static int create_xen_entries(enum xenmap_operation op,
-                              unsigned long virt,
-                              mfn_t mfn,
-                              unsigned long nr_mfns,
-                              unsigned int flags)
+static int xen_pt_update(enum xenmap_operation op,
+                         unsigned long virt,
+                         mfn_t mfn,
+                         unsigned long nr_mfns,
+                         unsigned int flags)
 {
     int rc = 0;
     unsigned long addr = virt, addr_end = addr + nr_mfns * PAGE_SIZE;
@@ -1067,25 +1067,24 @@ int map_pages_to_xen(unsigned long virt,
                      unsigned long nr_mfns,
                      unsigned int flags)
 {
-    return create_xen_entries(INSERT, virt, mfn, nr_mfns, flags);
+    return xen_pt_update(INSERT, virt, mfn, nr_mfns, flags);
 }
 
 int populate_pt_range(unsigned long virt, unsigned long nr_mfns)
 {
-    return create_xen_entries(RESERVE, virt, INVALID_MFN, nr_mfns, 0);
+    return xen_pt_update(RESERVE, virt, INVALID_MFN, nr_mfns, 0);
 }
 
 int destroy_xen_mappings(unsigned long v, unsigned long e)
 {
     ASSERT(v <= e);
-    return create_xen_entries(REMOVE, v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
+    return xen_pt_update(REMOVE, v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
 }
 
 int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int flags)
 {
     ASSERT(s <= e);
-    return create_xen_entries(MODIFY, s, INVALID_MFN, (e - s) >> PAGE_SHIFT,
-                              flags);
+    return xen_pt_update(MODIFY, s, INVALID_MFN, (e - s) >> PAGE_SHIFT, flags);
 }
 
 enum mg { mg_clear, mg_ro, mg_rw, mg_rx };
-- 
2.11.0


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

  parent reply	other threads:[~2019-05-14 12:31 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-14 12:31 [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Julien Grall
2019-05-14 12:31 ` [Xen-devel] " Julien Grall
2019-05-14 12:31 ` [PATCH MM-PART3 v2 01/12] xen/arm: lpae: Add a macro to generate offsets from an address Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-11 18:21   ` Stefano Stabellini
2019-06-11 18:27     ` Julien Grall
2019-05-14 12:31 ` Julien Grall [this message]
2019-05-14 12:31   ` [Xen-devel] [PATCH MM-PART3 v2 02/12] xen/arm: mm: Rename create_xen_entries() to xen_pt_update() Julien Grall
2019-06-11 18:23   ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 03/12] xen/arm: mm: Move out of xen_pt_update() the logic to update an entry Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-11 18:29   ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 04/12] xen/arm: mm: Only increment mfn when valid in xen_pt_update Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-11 18:37   ` Stefano Stabellini
2019-06-11 19:56     ` [Xen-devel] Checking INVALID_MFN in mfn_add (WAS: Re: [PATCH MM-PART3 v2 04/12] xen/arm: mm: Only increment mfn when valid in xen_pt_update) Julien Grall
2019-06-11 20:24       ` Andrew Cooper
2019-06-12 12:47         ` Julien Grall
2019-06-12 15:57           ` Stefano Stabellini
2019-06-12  7:53       ` Jan Beulich
2019-05-14 12:31 ` [PATCH MM-PART3 v2 05/12] xen/arm: mm: Introduce _PAGE_PRESENT and _PAGE_POPULATE Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-11 22:35   ` Stefano Stabellini
2019-06-12 13:00     ` Julien Grall
2019-05-14 12:31 ` [PATCH MM-PART3 v2 06/12] xen/arm: mm: Sanity check any update of Xen page tables Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12  0:10   ` Stefano Stabellini
2019-06-12 14:48     ` Julien Grall
2019-06-12 15:54       ` Stefano Stabellini
2019-06-12 15:58         ` Julien Grall
2019-05-14 12:31 ` [PATCH MM-PART3 v2 07/12] xen/arm: mm: Rework xen_pt_update_entry to avoid use xenmap_operation Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12 22:22   ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 08/12] xen/arm: mm: Remove enum xenmap_operation Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-11 22:38   ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 09/12] xen/arm: mm: Use {, un}map_domain_page() to map/unmap Xen page-tables Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12 22:25   ` Stefano Stabellini
2019-06-13  8:07     ` Julien Grall
2019-06-13 17:55       ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 10/12] xen/arm: mm: Rework Xen page-tables walk during update Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12 22:52   ` Stefano Stabellini
2019-06-13  8:20     ` Julien Grall
2019-06-13 17:59       ` Stefano Stabellini
2019-06-13 21:32         ` Julien Grall
2019-06-13 22:57           ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 11/12] xen/arm: mm: Don't open-code Xen PT update in {set, clear}_fixmap() Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12 22:33   ` Stefano Stabellini
2019-06-13  8:31     ` Julien Grall
2019-06-13 18:51       ` Stefano Stabellini
2019-06-13 21:21         ` Julien Grall
2019-06-13 22:55           ` Stefano Stabellini
2019-05-14 12:31 ` [PATCH MM-PART3 v2 12/12] xen/arm: mm: Remove set_pte_flags_on_range() Julien Grall
2019-05-14 12:31   ` [Xen-devel] " Julien Grall
2019-06-12 22:41   ` Stefano Stabellini
2019-06-13  8:51     ` Julien Grall
2019-06-13 18:04       ` Stefano Stabellini
2019-06-13 21:22         ` Julien Grall
2019-05-29 17:23 ` [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Julien Grall
2019-05-29 17:23   ` [Xen-devel] " Julien Grall
2019-06-10 10:08   ` Julien Grall

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