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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Juan Quintela" <quintela@redhat.com>,
	"Murilo Opsfelder Araujo" <muriloo@linux.ibm.com>,
	"Cornelia Huck" <cohuck@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Stefan Weil" <sw@weilnetz.de>,
	"David Hildenbrand" <david@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	"Peter Xu" <peterx@redhat.com>, "Greg Kurz" <groug@kaod.org>,
	"Halil Pasic" <pasic@linux.ibm.com>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Thomas Huth" <thuth@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Igor Kotrasinski" <i.kotrasinsk@partner.samsung.com>
Subject: [PATCH v1 1/9] softmmu/physmem: drop "shared" parameter from ram_block_add()
Date: Tue,  9 Feb 2021 14:49:31 +0100	[thread overview]
Message-ID: <20210209134939.13083-2-david@redhat.com> (raw)
In-Reply-To: <20210209134939.13083-1-david@redhat.com>

Properly store it in the flags of the ram block instead (and the flag
even already exists and is used).

E.g., qemu_ram_is_shared() now properly succeeds on all ram blocks that are
actually shared.

Reviewed-by: Igor Kotrasinski <i.kotrasinsk@partner.samsung.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 softmmu/physmem.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/softmmu/physmem.c b/softmmu/physmem.c
index 243c3097d3..6b6c3be605 100644
--- a/softmmu/physmem.c
+++ b/softmmu/physmem.c
@@ -1938,7 +1938,7 @@ static void dirty_memory_extend(ram_addr_t old_ram_size,
     }
 }
 
-static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
+static void ram_block_add(RAMBlock *new_block, Error **errp)
 {
     RAMBlock *block;
     RAMBlock *last_block = NULL;
@@ -1961,7 +1961,8 @@ static void ram_block_add(RAMBlock *new_block, Error **errp, bool shared)
             }
         } else {
             new_block->host = phys_mem_alloc(new_block->max_length,
-                                             &new_block->mr->align, shared);
+                                             &new_block->mr->align,
+                                             qemu_ram_is_shared(new_block));
             if (!new_block->host) {
                 error_setg_errno(errp, errno,
                                  "cannot set up guest memory '%s'",
@@ -2085,7 +2086,7 @@ RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, MemoryRegion *mr,
         return NULL;
     }
 
-    ram_block_add(new_block, &local_err, ram_flags & RAM_SHARED);
+    ram_block_add(new_block, &local_err);
     if (local_err) {
         g_free(new_block);
         error_propagate(errp, local_err);
@@ -2148,10 +2149,13 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
     if (host) {
         new_block->flags |= RAM_PREALLOC;
     }
+    if (share) {
+        new_block->flags |= RAM_SHARED;
+    }
     if (resizeable) {
         new_block->flags |= RAM_RESIZEABLE;
     }
-    ram_block_add(new_block, &local_err, share);
+    ram_block_add(new_block, &local_err);
     if (local_err) {
         g_free(new_block);
         error_propagate(errp, local_err);
-- 
2.29.2



  reply	other threads:[~2021-02-09 13:53 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-09 13:49 [PATCH v1 0/9] RAM_NORESERVE, MAP_NORESERVE and hostmem "reserve" property David Hildenbrand
2021-02-09 13:49 ` David Hildenbrand [this message]
2021-02-09 13:49 ` [PATCH v1 2/9] util/mmap-alloc: factor out calculation of the pagesize for the guard page David Hildenbrand
2021-02-09 13:49 ` [PATCH v1 3/9] util/mmap-alloc: factor out reserving of a memory region to mmap_reserve() David Hildenbrand
2021-02-09 13:49 ` [PATCH v1 4/9] util/mmap-alloc: factor out activating of memory to mmap_activate() David Hildenbrand
2021-02-09 13:49 ` [PATCH v1 5/9] softmmu/memory: pass ram_flags into qemu_ram_alloc_from_fd() David Hildenbrand
2021-03-02 17:17   ` Peter Xu
2021-02-09 13:49 ` [PATCH v1 6/9] softmmu/memory: pass ram_flags into memory_region_init_ram_shared_nomigrate() David Hildenbrand
2021-03-02 17:17   ` Peter Xu
2021-02-09 13:49 ` [PATCH v1 7/9] memory: introduce RAM_NORESERVE and wire it up in qemu_ram_mmap() David Hildenbrand
2021-03-02 17:32   ` Peter Xu
2021-03-02 19:02     ` David Hildenbrand
2021-03-02 20:54       ` Peter Xu
2021-03-02 20:58         ` David Hildenbrand
2021-03-03 11:35       ` Cornelia Huck
2021-03-03 11:37         ` David Hildenbrand
2021-03-03 12:12           ` Thomas Huth
2021-03-03 12:24             ` David Hildenbrand
2021-03-03 11:39         ` Thomas Huth
2021-03-03 11:41           ` David Hildenbrand
2021-02-09 13:49 ` [PATCH v1 8/9] util/mmap-alloc: support RAM_NORESERVE via MAP_NORESERVE David Hildenbrand
2021-03-02 17:51   ` Peter Xu
2021-03-02 19:01     ` David Hildenbrand
2021-03-02 21:44       ` Peter Xu
2021-03-03 10:14         ` David Hildenbrand
2021-03-03 17:05           ` Peter Xu
2021-03-04 16:15             ` David Hildenbrand
2021-02-09 13:49 ` [PATCH v1 9/9] hostmem: wire up RAM_NORESERVE via "reserve" property David Hildenbrand
2021-03-02 17:55   ` Peter Xu
2021-03-02 13:12 ` [PATCH v1 0/9] RAM_NORESERVE, MAP_NORESERVE and hostmem " David Hildenbrand

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