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[Qemu-devel] [PATCH v6 27/29] postcopy: Allow shared memory
From: |
Dr. David Alan Gilbert (git) |
Subject: |
[Qemu-devel] [PATCH v6 27/29] postcopy: Allow shared memory |
Date: |
Wed, 14 Mar 2018 11:56:16 +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 9cdee0fed7..188c2ca5c1 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 v6 18/29] vhost+postcopy: Resolve client address, (continued)
- [Qemu-devel] [PATCH v6 18/29] vhost+postcopy: Resolve client address, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 19/29] postcopy: helper for waking shared, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 20/29] postcopy: postcopy_notify_shared_wake, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 22/29] vhost+postcopy: Call wakeups, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 21/29] vhost+postcopy: Add vhost waker, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 23/29] libvhost-user: mprotect & madvises for postcopy, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 25/29] vhost+postcopy: Wire up POSTCOPY_END notify, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 24/29] vhost-user: Add VHOST_USER_POSTCOPY_END message, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 26/29] vhost: Huge page align and merge, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 28/29] libvhost-user: Claim support for postcopy, Dr. David Alan Gilbert (git), 2018/03/14
- [Qemu-devel] [PATCH v6 27/29] postcopy: Allow shared memory,
Dr. David Alan Gilbert (git) <=
- [Qemu-devel] [PATCH v6 29/29] postcopy shared docs, Dr. David Alan Gilbert (git), 2018/03/14