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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Eduardo Habkost" <ehabkost@redhat.com>,
	kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"David Hildenbrand" <david@redhat.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
	"Peter Xu" <peterx@redhat.com>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Ani Sinha" <ani@anisinha.ca>,
	"Paolo Bonzini" <pbonzini@redhat.com>
Subject: [PATCH RFC 15/15] virtio-mem: Set "max-memslots" to 0 (auto) for the 6.2 machine
Date: Wed, 13 Oct 2021 12:33:30 +0200	[thread overview]
Message-ID: <20211013103330.26869-16-david@redhat.com> (raw)
In-Reply-To: <20211013103330.26869-1-david@redhat.com>

Let's enable automatic detection of memslots to use for the 6.2 machine,
leaving the behavior of compat machines unchanged.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 hw/core/machine.c      | 1 +
 hw/virtio/virtio-mem.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/core/machine.c b/hw/core/machine.c
index b8d95eec32..25aa42cf9f 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -39,6 +39,7 @@
 
 GlobalProperty hw_compat_6_1[] = {
     { "vhost-user-vsock-device", "seqpacket", "off" },
+    { "virtio-mem", "max-memslots", "1" },
 };
 const size_t hw_compat_6_1_len = G_N_ELEMENTS(hw_compat_6_1);
 
diff --git a/hw/virtio/virtio-mem.c b/hw/virtio/virtio-mem.c
index f7e8f1db83..3de8ed94e6 100644
--- a/hw/virtio/virtio-mem.c
+++ b/hw/virtio/virtio-mem.c
@@ -1272,7 +1272,7 @@ static Property virtio_mem_properties[] = {
     DEFINE_PROP_LINK(VIRTIO_MEM_MEMDEV_PROP, VirtIOMEM, memdev,
                      TYPE_MEMORY_BACKEND, HostMemoryBackend *),
     DEFINE_PROP_UINT16(VIRTIO_MEM_MAX_MEMSLOTS_PROP, VirtIOMEM, nb_max_memslots,
-                       1),
+                       0),
     DEFINE_PROP_END_OF_LIST(),
 };
 
-- 
2.31.1



  parent reply	other threads:[~2021-10-13 10:47 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 10:33 [PATCH RFC 00/15] virtio-mem: Expose device memory via separate memslots David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 01/15] memory: Drop mapping check from memory_region_get_ram_discard_manager() David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 02/15] kvm: Return number of free memslots David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 03/15] vhost: " David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 04/15] memory: Allow for marking memory region aliases unmergeable David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 05/15] vhost: Don't merge unmergeable memory sections David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 06/15] memory-device: Move memory_device_check_addable() directly into memory_device_pre_plug() David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 07/15] memory-device: Generalize memory_device_used_region_size() David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 08/15] memory-device: Support memory devices that consume a variable number of memslots David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 09/15] vhost: Respect reserved memslots for memory devices when realizing a vhost device David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 10/15] virtio-mem: Set the RamDiscardManager for the RAM memory region earlier David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 11/15] virtio-mem: Fix typo in virito_mem_intersect_memory_section() function name David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 12/15] virtio-mem: Expose device memory via separate memslots David Hildenbrand
2021-10-14 11:45   ` Dr. David Alan Gilbert
2021-10-14 13:17     ` David Hildenbrand
2021-10-20 12:17       ` David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 13/15] vhost-user: Increase VHOST_USER_MAX_RAM_SLOTS to 496 with CONFIG_VIRTIO_MEM David Hildenbrand
2021-10-13 10:33 ` [PATCH RFC 14/15] libvhost-user: Increase VHOST_USER_MAX_RAM_SLOTS to 4096 David Hildenbrand
2021-10-13 10:33 ` David Hildenbrand [this message]
2021-10-13 19:03 ` [PATCH RFC 00/15] virtio-mem: Expose device memory via separate memslots Dr. David Alan Gilbert
2021-10-14  7:01   ` David Hildenbrand

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