From: Markus Armbruster <armbru@redhat.com>
To: qemu-devel@nongnu.org
Cc: claudio.fontana@huawei.com, cam@cs.ualberta.ca,
mlureau@redhat.com, david.marchand@6wind.com,
pbonzini@redhat.com
Subject: [Qemu-devel] [PATCH v3 04/40] qemu-doc: Fix ivshmem huge page example
Date: Tue, 15 Mar 2016 19:34:19 +0100 [thread overview]
Message-ID: <1458066895-20632-5-git-send-email-armbru@redhat.com> (raw)
In-Reply-To: <1458066895-20632-1-git-send-email-armbru@redhat.com>
Option parameter "share" is missing. Without it, you get a *private*
mmap(), which defeats ivshmem's purpose pretty thoroughly ;)
While there, switch to the conventional mountpoint of hugetlbfs
/dev/hugepages.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
---
qemu-doc.texi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/qemu-doc.texi b/qemu-doc.texi
index bc9dd13..65f3b29 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -1311,7 +1311,7 @@ Instead of specifying the <shm size> using POSIX shm, you may specify
a memory backend that has hugepage support:
@example
-qemu-system-i386 -object memory-backend-file,size=1G,mem-path=/mnt/hugepages/my-shmem-file,id=mb1
+qemu-system-i386 -object memory-backend-file,size=1G,mem-path=/dev/hugepages/my-shmem-file,share,id=mb1
-device ivshmem,x-memdev=mb1
@end example
--
2.4.3
next prev parent reply other threads:[~2016-03-15 18:35 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-15 18:34 [Qemu-devel] [PATCH v3 00/40] ivshmem: Fixes, cleanups, device model split Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 01/40] target-ppc: Document TOCTTOU in hugepage support Markus Armbruster
2016-03-18 15:04 ` Marc-André Lureau
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 02/40] ivshmem-server: Fix and clean up command line help Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 03/40] ivshmem-server: Don't overload POSIX shmem and file name Markus Armbruster
2016-03-18 15:04 ` Marc-André Lureau
2016-03-15 18:34 ` Markus Armbruster [this message]
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 05/40] event_notifier: Make event_notifier_init_fd() #ifdef CONFIG_EVENTFD Markus Armbruster
2016-03-21 12:48 ` Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 06/40] tests/libqos/pci-pc: Fix qpci_pc_iomap() to map BARs aligned Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 07/40] ivshmem-test: Improve test case /ivshmem/single Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 08/40] ivshmem-test: Clean up wait for devices to become operational Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 09/40] ivshmem-test: Improve test cases /ivshmem/server-* Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 10/40] ivshmem: Rewrite specification document Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 11/40] ivshmem: Add missing newlines to debug printfs Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 12/40] ivshmem: Compile debug prints unconditionally to prevent bit-rot Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 13/40] ivshmem: Clean up after commit 9940c32 Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 14/40] ivshmem: Drop ivshmem_event() stub Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 15/40] ivshmem: Don't destroy the chardev on version mismatch Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 16/40] ivshmem: Fix harmless misuse of Error Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 17/40] ivshmem: Failed realize() can leave migration blocker behind Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 18/40] ivshmem: Clean up register callbacks Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 19/40] ivshmem: Clean up MSI-X conditions Markus Armbruster
2016-03-18 15:04 ` Marc-André Lureau
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 20/40] ivshmem: Leave INTx alone when using MSI-X Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 21/40] ivshmem: Assert interrupts are set up once Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 22/40] ivshmem: Simplify rejection of invalid peer ID from server Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 23/40] ivshmem: Disentangle ivshmem_read() Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 24/40] ivshmem: Plug leaks on unplug, fix peer disconnect Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 25/40] ivshmem: Receive shared memory synchronously in realize() Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 26/40] ivshmem: Propagate errors through ivshmem_recv_setup() Markus Armbruster
2016-03-18 15:04 ` Marc-André Lureau
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 27/40] ivshmem: Rely on server sending the ID right after the version Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 28/40] ivshmem: Drop the hackish test for UNIX domain chardev Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 29/40] ivshmem: Simplify how we cope with short reads from server Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 30/40] ivshmem: Tighten check of property "size" Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 31/40] ivshmem: Implement shm=... with a memory backend Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 32/40] ivshmem: Simplify memory regions for BAR 2 (shared memory) Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 33/40] ivshmem: Inline check_shm_size() into its only caller Markus Armbruster
2016-03-18 15:04 ` Marc-André Lureau
2016-03-18 16:50 ` Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 34/40] qdev: New DEFINE_PROP_ON_OFF_AUTO Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 35/40] ivshmem: Replace int role_val by OnOffAuto master Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 36/40] ivshmem: Split ivshmem-plain, ivshmem-doorbell off ivshmem Markus Armbruster
2016-03-21 12:32 ` Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 37/40] ivshmem: Clean up after the previous commit Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 38/40] ivshmem: Drop ivshmem property x-memdev Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 39/40] ivshmem: Require master to have ID zero Markus Armbruster
2016-03-15 18:34 ` [Qemu-devel] [PATCH v3 40/40] contrib/ivshmem-server: Print "not for production" warning Markus Armbruster
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