[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v3 27/29] postcopy: Allow shared memory
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[Qemu-devel] [PATCH v3 27/29] postcopy: Allow shared memory |
Date: |
Fri, 16 Feb 2018 13:16:23 +0000 |
From: "Dr. David Alan Gilbert" <address@hidden>
Now that we have the mechanisms in here, allow shared memory in a
postcopy.
Note that QEMU can't tell who all the users of shared regions are
and thus can't tell whether all the users of the shared regions
have appropriate support for postcopy. Those devices that explicitly
support shared memory (e.g. vhost-user) must check, but it doesn't
stop weirder configurations causing problems.
Signed-off-by: Dr. David Alan Gilbert <address@hidden>
Reviewed-by: Marc-André Lureau <address@hidden>
---
migration/postcopy-ram.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c
index 14196d0654..b683e24d0e 100644
--- a/migration/postcopy-ram.c
+++ b/migration/postcopy-ram.c
@@ -215,12 +215,6 @@ static int test_ramblock_postcopiable(const char
*block_name, void *host_addr,
RAMBlock *rb = qemu_ram_block_by_name(block_name);
size_t pagesize = qemu_ram_pagesize(rb);
- if (qemu_ram_is_shared(rb)) {
- error_report("Postcopy on shared RAM (%s) is not yet supported",
- block_name);
- return 1;
- }
-
if (length % pagesize) {
error_report("Postcopy requires RAM blocks to be a page size multiple,"
" block %s is 0x" RAM_ADDR_FMT " bytes with a "
--
2.14.3
- [Qemu-devel] [PATCH v3 16/29] vhost+postcopy: Stash RAMBlock and offset, (continued)
- [Qemu-devel] [PATCH v3 16/29] vhost+postcopy: Stash RAMBlock and offset, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 17/29] vhost+postcopy: Send requests to source for shared pages, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 18/29] vhost+postcopy: Resolve client address, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 20/29] postcopy: postcopy_notify_shared_wake, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 21/29] vhost+postcopy: Add vhost waker, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 22/29] vhost+postcopy: Call wakeups, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 19/29] postcopy: wake shared, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 25/29] vhost+postcopy: Wire up POSTCOPY_END notify, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 26/29] vhost: Huge page align and merge, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 27/29] postcopy: Allow shared memory,
Dr. David Alan Gilbert (git) <=
- [Qemu-devel] [PATCH v3 28/29] libvhost-user: Claim support for postcopy, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 23/29] libvhost-user: mprotect & madvises for postcopy, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 24/29] vhost-user: Add VHOST_USER_POSTCOPY_END message, Dr. David Alan Gilbert (git), 2018/02/16
- [Qemu-devel] [PATCH v3 29/29] postcopy shared docs, Dr. David Alan Gilbert (git), 2018/02/16
- Re: [Qemu-devel] [PATCH v3 00/29] postcopy+vhost-user/shared ram, Michael S. Tsirkin, 2018/02/27