From: Juan Quintela <quintela@redhat.com>
To: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
Cc: aarcange@redhat.com, yamahata@private.email.ne.jp,
liang.z.li@intel.com, qemu-devel@nongnu.org, luis@cs.umu.se,
amit.shah@redhat.com, pbonzini@redhat.com,
david@gibson.dropbear.id.au
Subject: Re: [Qemu-devel] [PATCH v7 36/42] Host page!=target page: Cleanup bitmaps
Date: Tue, 14 Jul 2015 17:01:38 +0200 [thread overview]
Message-ID: <87mvyyg4vh.fsf@neno.neno> (raw)
In-Reply-To: <1434450415-11339-37-git-send-email-dgilbert@redhat.com> (David Alan Gilbert's message of "Tue, 16 Jun 2015 11:26:49 +0100")
"Dr. David Alan Gilbert (git)" <dgilbert@redhat.com> wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
>
> Prior to the start of postcopy, ensure that everything that will
> be transferred later is a whole host-page in size.
>
> This is accomplished by discarding partially transferred host pages
> and marking any that are partially dirty as fully dirty.
>
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> /*
> + * Helper for postcopy_chunk_hostpages where HPS/TPS >= bits-in-long
> + *
> + * !! Untested !!
You continue in the race for best comment ever O:-)
> + */
> +static int hostpage_big_chunk_helper(const char *block_name, void *host_addr,
> + ram_addr_t offset, ram_addr_t length,
> + void *opaque)
> +{
> + MigrationState *ms = opaque;
> + unsigned long long_bits = sizeof(long) * 8;
> + unsigned int host_len = (qemu_host_page_size / TARGET_PAGE_SIZE) /
> + long_bits;
> + unsigned long first_long, last_long, cur_long, current_hp;
> + unsigned long first = offset >> TARGET_PAGE_BITS;
> + unsigned long last = (offset + (length - 1)) >> TARGET_PAGE_BITS;
> +
> + PostcopyDiscardState *pds = postcopy_discard_send_init(ms,
> + first,
> + block_name);
Minor
PostcopyDiscardState *pds =
postcopy_discard_send_init(ms, first, block_name);
??
> + first_long = first / long_bits;
> + last_long = last / long_bits;
> +
> + /*
> + * I'm assuming RAMBlocks must start at the start of host pages,
> + * but I guess they might not use the whole of the host page
> + */
> +
> + /* Work along one host page at a time */
> + for (current_hp = first_long; current_hp <= last_long;
> + current_hp += host_len) {
> + bool discard = 0;
> + bool redirty = 0;
> + bool has_some_dirty = false;
> + bool has_some_undirty = false;
> + bool has_some_sent = false;
> + bool has_some_unsent = false;
> +
> + /*
> + * Check each long of mask for this hp, and see if anything
> + * needs updating.
> + */
> + for (cur_long = current_hp; cur_long < (current_hp + host_len);
> + cur_long++) {
> + /* a chunk of sent pages */
> + unsigned long sdata = ms->sentmap[cur_long];
> + /* a chunk of dirty pages */
> + unsigned long ddata = migration_bitmap[cur_long];
> +
> + if (sdata) {
> + has_some_sent = true;
> + }
> + if (sdata != ~0ul) {
> + has_some_unsent = true;
> + }
> + if (ddata) {
> + has_some_dirty = true;
> + }
> + if (ddata != ~0ul) {
> + has_some_undirty = true;
> + }
> +
> + }
No need for this:
find_first_bit()
find_first_zero_bit()
You are warking all the words when a single search is enough?
> +
> + if (has_some_sent && has_some_unsent) {
> + /* Partially sent host page */
> + discard = true;
> + redirty = true;
> + }
> +
> + if (has_some_dirty && has_some_undirty) {
> + /* Partially dirty host page */
> + redirty = true;
> + }
> +
> + if (!discard && !redirty) {
> + /* All consistent - next host page */
> + continue;
> + }
> +
> +
> + /* Now walk the chunks again, sending discards etc */
> + for (cur_long = current_hp; cur_long < (current_hp + host_len);
> + cur_long++) {
> + unsigned long cur_bits = cur_long * long_bits;
> +
> + /* a chunk of sent pages */
> + unsigned long sdata = ms->sentmap[cur_long];
> + /* a chunk of dirty pages */
> + unsigned long ddata = migration_bitmap[cur_long];
> +
> + if (discard && sdata) {
> + /* Tell the destination to discard these pages */
> + postcopy_discard_send_range(ms, pds, cur_bits,
> + cur_bits + long_bits - 1);
> + /* And clear them in the sent data structure */
> + ms->sentmap[cur_long] = 0;
> + }
> +
> + if (redirty) {
> + migration_bitmap[cur_long] = ~0ul;
> + /* Inc the count of dirty pages */
> + migration_dirty_pages += ctpopl(~ddata);
> + }
> + }
creative use of bitmap_zero(), bitmap_fill() and just doing o whelo
postcopy_discard_send_rand() would not be better?
> + }
> +
> + postcopy_discard_send_finish(ms, pds);
> +
> + return 0;
> +}
> +
> +/*
> + * When working on long chunks of a bitmap where the only valid section
> + * is between start..end (inclusive), generate a mask with only those
> + * valid bits set for the current long word within that bitmask.
> + */
> +static unsigned long make_long_mask(unsigned long start, unsigned long end,
> + unsigned long cur_long)
> +{
> + unsigned long long_bits = sizeof(long) * 8;
> + unsigned long long_bits_mask = long_bits - 1;
> + unsigned long first_long, last_long;
> + unsigned long mask = ~(unsigned long)0;
> + first_long = start / long_bits ;
> + last_long = end / long_bits;
> +
> + if ((cur_long == first_long) && (start & long_bits_mask)) {
> + /* e.g. (start & 31) = 3
> + * 1 << . -> 2^3
> + * . - 1 -> 2^3 - 1 i.e. mask 2..0
> + * ~. -> mask 31..3
> + */
> + mask &= ~((((unsigned long)1) << (start & long_bits_mask)) - 1);
start = start & long_bit_mask;
bitmap_set(&mask, start, long_bits - start);
> + }
> +
> + if ((cur_long == last_long) && ((end & long_bits_mask) != long_bits_mask)) {
> + /* e.g. (end & 31) = 3
> + * . +1 -> 4
> + * 1 << . -> 2^4
> + * . -1 -> 2^4 - 1
> + * = mask set 3..0
> + */
> + mask &= (((unsigned long)1) << ((end & long_bits_mask) + 1)) - 1;
bitmap_set(&mask, 0, end);
Adjust +1/-1 depending on how you do limits?
BTW, when I need inspiration about how to code functions that deal with
bits, I searc for inspiration in bitmap.c. Sometimes function already
exist, and otherwise, things like BITS_PER_LONG, etc, are already
defined there.
> + }
> +
> + return mask;
> +}
> +
> +/*
> + * Utility for the outgoing postcopy code.
> + *
> + * Discard any partially sent host-page size chunks, mark any partially
> + * dirty host-page size chunks as all dirty.
> + *
> + * Returns: 0 on success
> + */
> +static int postcopy_chunk_hostpages(MigrationState *ms)
> +{
> + struct RAMBlock *block;
> + unsigned int host_bits = qemu_host_page_size / TARGET_PAGE_SIZE;
> + unsigned long long_bits = sizeof(long) * 8;
> + unsigned long host_mask;
> +
> + assert(is_power_of_2(host_bits));
> +
> + if (qemu_host_page_size == TARGET_PAGE_SIZE) {
> + /* Easy case - TPS==HPS - nothing to be done */
> + return 0;
> + }
> +
> + /* Easiest way to make sure we don't resume in the middle of a host-page */
> + last_seen_block = NULL;
> + last_sent_block = NULL;
Best names ever. And you have to blame me at least for the second one
to appear :p
> +
> + /*
> + * The currently worst known ratio is ARM that has 1kB target pages, and
> + * can have 64kB host pages, which is thus inconveniently larger than a long
> + * on ARM (32bits), and a long is the underlying element of the migration
> + * bitmaps.
> + */
> + if (host_bits >= long_bits) {
> + /* Deal with the odd case separately */
> + return qemu_ram_foreach_block(hostpage_big_chunk_helper, ms);
> + } else {
> + host_mask = (1ul << host_bits) - 1;
> + }
You can remove the else enterily and just put the code at top level.
So, we have three cases:
- host_bits == target_bits -> NOP
- host_bits >= long_bits
- host_bits < long_bits
Couldn't we merge the last two? they are very similar, and having two
code paths looks too much to me?
> @@ -1405,9 +1664,17 @@ int ram_postcopy_send_discard_bitmap(MigrationState *ms)
> int ret;
>
> rcu_read_lock();
> +
Another not needed.
next prev parent reply other threads:[~2015-07-14 15:01 UTC|newest]
Thread overview: 209+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-16 10:26 [Qemu-devel] [PATCH v7 00/42] Postcopy implementation Dr. David Alan Gilbert (git)
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 01/42] Start documenting how postcopy works Dr. David Alan Gilbert (git)
2015-06-17 11:42 ` Juan Quintela
2015-06-17 12:30 ` Dr. David Alan Gilbert
2015-06-18 7:50 ` Li, Liang Z
2015-06-18 8:10 ` Dr. David Alan Gilbert
2015-06-18 8:28 ` Paolo Bonzini
2015-06-19 17:52 ` Dr. David Alan Gilbert
2015-06-26 6:46 ` Yang Hongyang
2015-06-26 7:53 ` zhanghailiang
2015-06-26 8:00 ` Yang Hongyang
2015-06-26 8:10 ` Dr. David Alan Gilbert
2015-06-26 8:19 ` Yang Hongyang
2015-08-04 5:20 ` Amit Shah
2015-08-05 12:21 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 02/42] Provide runtime Target page information Dr. David Alan Gilbert (git)
2015-06-17 11:43 ` Juan Quintela
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 03/42] Init page sizes in qtest Dr. David Alan Gilbert (git)
2015-06-17 11:49 ` Juan Quintela
2015-07-06 6:14 ` Amit Shah
2015-08-04 5:23 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 04/42] qemu_ram_block_from_host Dr. David Alan Gilbert (git)
2015-06-17 11:54 ` Juan Quintela
2015-07-10 8:36 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 05/42] Add qemu_get_buffer_less_copy to avoid copies some of the time Dr. David Alan Gilbert (git)
2015-06-17 11:57 ` Juan Quintela
2015-06-17 12:33 ` Dr. David Alan Gilbert
2015-07-13 9:08 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 06/42] Add wrapper for setting blocking status on a QEMUFile Dr. David Alan Gilbert (git)
2015-06-17 11:59 ` Juan Quintela
2015-06-17 12:34 ` Dr. David Alan Gilbert
2015-06-17 12:57 ` Juan Quintela
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 07/42] ram_debug_dump_bitmap: Dump a migration bitmap as text Dr. David Alan Gilbert (git)
2015-06-17 12:17 ` Juan Quintela
2015-06-19 17:04 ` Dr. David Alan Gilbert
2015-07-13 10:15 ` Juan Quintela
2015-07-13 9:12 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 08/42] migrate_init: Call from savevm Dr. David Alan Gilbert (git)
2015-06-17 12:18 ` Juan Quintela
2015-07-13 9:13 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 09/42] Rename save_live_complete to save_live_complete_precopy Dr. David Alan Gilbert (git)
2015-06-17 12:20 ` Juan Quintela
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 10/42] Return path: Open a return path on QEMUFile for sockets Dr. David Alan Gilbert (git)
2015-06-17 12:23 ` Juan Quintela
2015-06-17 17:07 ` Dr. David Alan Gilbert
2015-07-13 10:12 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 11/42] Return path: socket_writev_buffer: Block even on non-blocking fd's Dr. David Alan Gilbert (git)
2015-06-17 12:28 ` Juan Quintela
2015-06-19 17:18 ` Dr. David Alan Gilbert
2015-07-13 12:37 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 12/42] Migration commands Dr. David Alan Gilbert (git)
2015-06-17 12:31 ` Juan Quintela
2015-06-19 17:38 ` Dr. David Alan Gilbert
2015-07-13 12:45 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 13/42] Return path: Control commands Dr. David Alan Gilbert (git)
2015-06-17 12:49 ` Juan Quintela
2015-06-23 18:57 ` Dr. David Alan Gilbert
2015-07-13 12:55 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 14/42] Return path: Send responses from destination to source Dr. David Alan Gilbert (git)
2015-06-17 16:30 ` Juan Quintela
2015-06-19 18:42 ` Dr. David Alan Gilbert
2015-07-01 9:29 ` Juan Quintela
2015-08-06 12:18 ` Dr. David Alan Gilbert
2015-07-15 7:31 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 15/42] Return path: Source handling of return path Dr. David Alan Gilbert (git)
2015-07-13 10:29 ` Juan Quintela
2015-08-18 10:23 ` Dr. David Alan Gilbert
2015-07-15 7:50 ` Amit Shah
2015-07-16 11:32 ` Dr. David Alan Gilbert
2015-08-05 8:06 ` zhanghailiang
2015-08-18 10:45 ` Dr. David Alan Gilbert
2015-08-18 11:29 ` zhanghailiang
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 16/42] Rework loadvm path for subloops Dr. David Alan Gilbert (git)
2015-07-13 10:33 ` Juan Quintela
2015-07-15 9:34 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 17/42] Add migration-capability boolean for postcopy-ram Dr. David Alan Gilbert (git)
2015-06-16 15:43 ` Eric Blake
2015-06-16 15:58 ` Dr. David Alan Gilbert
2015-07-15 9:39 ` Amit Shah
2015-07-13 10:35 ` Juan Quintela
2015-07-15 9:40 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 18/42] Add wrappers and handlers for sending/receiving the postcopy-ram migration messages Dr. David Alan Gilbert (git)
2015-07-13 11:02 ` Juan Quintela
2015-07-20 10:13 ` Amit Shah
2015-08-26 14:48 ` Dr. David Alan Gilbert
2015-07-20 10:06 ` Amit Shah
2015-07-27 9:55 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 19/42] MIG_CMD_PACKAGED: Send a packaged chunk of migration stream Dr. David Alan Gilbert (git)
2015-07-13 11:07 ` Juan Quintela
2015-07-21 6:11 ` Amit Shah
2015-07-27 17:28 ` Dr. David Alan Gilbert
2015-08-04 5:27 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 20/42] Modify save_live_pending for postcopy Dr. David Alan Gilbert (git)
2015-07-13 11:12 ` Juan Quintela
2015-07-31 16:13 ` Dr. David Alan Gilbert
2015-07-21 6:17 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 21/42] postcopy: OS support test Dr. David Alan Gilbert (git)
2015-07-13 11:20 ` Juan Quintela
2015-07-13 16:31 ` Dr. David Alan Gilbert
2015-07-21 7:29 ` Amit Shah
2015-07-27 17:38 ` Dr. David Alan Gilbert
2015-08-04 5:28 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 22/42] migrate_start_postcopy: Command to trigger transition to postcopy Dr. David Alan Gilbert (git)
2015-07-13 11:23 ` Juan Quintela
2015-07-13 17:13 ` Dr. David Alan Gilbert
2015-07-13 18:07 ` Juan Quintela
2015-07-21 7:40 ` Amit Shah
2015-09-24 9:59 ` Dr. David Alan Gilbert
2015-09-24 14:20 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 23/42] MIGRATION_STATUS_POSTCOPY_ACTIVE: Add new migration state Dr. David Alan Gilbert (git)
2015-07-13 11:27 ` Juan Quintela
2015-07-13 15:53 ` Dr. David Alan Gilbert
2015-07-13 16:26 ` Juan Quintela
2015-07-13 16:48 ` Dr. David Alan Gilbert
2015-07-13 18:05 ` Juan Quintela
2015-07-21 10:33 ` Amit Shah
2015-09-23 17:04 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 24/42] Add qemu_savevm_state_complete_postcopy Dr. David Alan Gilbert (git)
2015-07-13 11:35 ` Juan Quintela
2015-07-13 15:33 ` Dr. David Alan Gilbert
2015-07-21 10:42 ` Amit Shah
2015-07-27 17:58 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 25/42] Postcopy: Maintain sentmap and calculate discard Dr. David Alan Gilbert (git)
2015-07-13 11:47 ` Juan Quintela
2015-09-15 17:01 ` Dr. David Alan Gilbert
2015-07-21 11:36 ` Amit Shah
2015-07-31 16:51 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 26/42] postcopy: Incoming initialisation Dr. David Alan Gilbert (git)
2015-07-13 12:04 ` Juan Quintela
2015-09-23 19:06 ` Dr. David Alan Gilbert
2015-07-22 6:19 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 27/42] postcopy: ram_enable_notify to switch on userfault Dr. David Alan Gilbert (git)
2015-07-13 12:10 ` Juan Quintela
2015-07-13 17:36 ` Dr. David Alan Gilbert
2015-07-23 5:22 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 28/42] Postcopy: Postcopy startup in migration thread Dr. David Alan Gilbert (git)
2015-07-13 12:56 ` Juan Quintela
2015-07-13 17:56 ` Dr. David Alan Gilbert
2015-07-13 18:09 ` Juan Quintela
2015-09-23 17:56 ` Dr. David Alan Gilbert
2015-07-23 5:53 ` Amit Shah
2015-07-23 5:55 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 29/42] Postcopy end in migration_thread Dr. David Alan Gilbert (git)
2015-07-13 13:15 ` Juan Quintela
2015-07-23 6:41 ` Amit Shah
2015-08-04 11:31 ` Dr. David Alan Gilbert
2015-07-23 6:41 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 30/42] Page request: Add MIG_RP_MSG_REQ_PAGES reverse command Dr. David Alan Gilbert (git)
2015-07-13 13:24 ` Juan Quintela
2015-08-06 14:15 ` Dr. David Alan Gilbert
2015-07-23 6:50 ` Amit Shah
2015-08-06 14:21 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 31/42] Page request: Process incoming page request Dr. David Alan Gilbert (git)
2015-07-14 9:18 ` Juan Quintela
2015-08-06 10:45 ` Dr. David Alan Gilbert
2015-10-20 10:29 ` Juan Quintela
2015-07-23 12:23 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 32/42] Page request: Consume pages off the post-copy queue Dr. David Alan Gilbert (git)
2015-07-14 9:40 ` Juan Quintela
2015-09-16 18:36 ` Dr. David Alan Gilbert
2015-07-27 6:05 ` Amit Shah
2015-09-16 18:48 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 33/42] postcopy_ram.c: place_page and helpers Dr. David Alan Gilbert (git)
2015-07-14 10:05 ` Juan Quintela
2015-07-27 6:11 ` Amit Shah
2015-09-23 16:45 ` Dr. David Alan Gilbert
2015-07-27 6:11 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 34/42] Postcopy: Use helpers to map pages during migration Dr. David Alan Gilbert (git)
2015-07-14 12:34 ` Juan Quintela
2015-07-17 17:31 ` Dr. David Alan Gilbert
2015-07-27 7:39 ` Amit Shah
2015-08-06 11:22 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 35/42] Don't sync dirty bitmaps in postcopy Dr. David Alan Gilbert (git)
2015-07-14 12:36 ` Juan Quintela
2015-07-14 13:13 ` Dr. David Alan Gilbert
2015-07-27 7:43 ` Amit Shah
2015-07-31 9:50 ` Dr. David Alan Gilbert
2015-08-04 5:46 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 36/42] Host page!=target page: Cleanup bitmaps Dr. David Alan Gilbert (git)
2015-07-14 15:01 ` Juan Quintela [this message]
2015-07-31 15:53 ` Dr. David Alan Gilbert
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 37/42] Postcopy; Handle userfault requests Dr. David Alan Gilbert (git)
2015-07-14 15:10 ` Juan Quintela
2015-07-14 15:15 ` Dr. David Alan Gilbert
2015-07-14 15:25 ` Juan Quintela
2015-07-27 14:29 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 38/42] Start up a postcopy/listener thread ready for incoming page data Dr. David Alan Gilbert (git)
2015-07-14 15:12 ` Juan Quintela
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 39/42] postcopy: Wire up loadvm_postcopy_handle_ commands Dr. David Alan Gilbert (git)
2015-07-14 15:14 ` Juan Quintela
2015-07-28 5:53 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 40/42] End of migration for postcopy Dr. David Alan Gilbert (git)
2015-07-14 15:15 ` Juan Quintela
2015-07-28 5:55 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 41/42] Disable mlock around incoming postcopy Dr. David Alan Gilbert (git)
2015-07-14 15:22 ` Juan Quintela
2015-07-28 6:02 ` Amit Shah
2015-07-28 11:32 ` Juan Quintela
2015-08-06 14:55 ` Dr. David Alan Gilbert
2015-08-07 3:05 ` zhanghailiang
2015-09-24 10:36 ` Dr. David Alan Gilbert
2015-07-28 6:02 ` Amit Shah
2015-06-16 10:26 ` [Qemu-devel] [PATCH v7 42/42] Inhibit ballooning during postcopy Dr. David Alan Gilbert (git)
2015-07-14 15:24 ` Juan Quintela
2015-07-28 6:15 ` Amit Shah
2015-07-28 9:08 ` Dr. David Alan Gilbert
2015-07-28 10:01 ` Amit Shah
2015-07-28 11:16 ` Dr. David Alan Gilbert
2015-07-28 6:21 ` [Qemu-devel] [PATCH v7 00/42] Postcopy implementation Amit Shah
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