From 8be4620be237356e22905d9aa2356ced492970c8 Mon Sep 17 00:00:00 2001 From: Alexey Perevalov Date: Thu, 5 Oct 2017 14:13:18 +0300 Subject: [PATCH] migration: postcopy_place_page factoring out Need to mark copied pages as closer as possible to the place where it tracks down. That will be necessary in futher patch. Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Peter Xu Reviewed-by: Juan Quintela Signed-off-by: Alexey Perevalov Signed-off-by: Juan Quintela --- migration/postcopy-ram.c | 13 +++++++------ migration/postcopy-ram.h | 4 ++-- migration/ram.c | 4 ++-- 3 files changed, 11 insertions(+), 10 deletions(-) diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 0de68e8b25..d3073b93b5 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -646,9 +646,10 @@ int postcopy_ram_enable_notify(MigrationIncomingState *mis) * returns 0 on success */ int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, - size_t pagesize) + RAMBlock *rb) { struct uffdio_copy copy_struct; + size_t pagesize = qemu_ram_pagesize(rb); copy_struct.dst = (uint64_t)(uintptr_t)host; copy_struct.src = (uint64_t)(uintptr_t)from; @@ -677,11 +678,11 @@ int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, * returns 0 on success */ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, - size_t pagesize) + RAMBlock *rb) { trace_postcopy_place_page_zero(host); - if (pagesize == getpagesize()) { + if (qemu_ram_pagesize(rb) == getpagesize()) { struct uffdio_zeropage zero_struct; zero_struct.range.start = (uint64_t)(uintptr_t)host; zero_struct.range.len = getpagesize(); @@ -711,7 +712,7 @@ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, memset(mis->postcopy_tmp_zero_page, '\0', mis->largest_page_size); } return postcopy_place_page(mis, host, mis->postcopy_tmp_zero_page, - pagesize); + rb); } return 0; @@ -774,14 +775,14 @@ int postcopy_ram_enable_notify(MigrationIncomingState *mis) } int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, - size_t pagesize) + RAMBlock *rb) { assert(0); return -1; } int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, - size_t pagesize) + RAMBlock *rb) { assert(0); return -1; diff --git a/migration/postcopy-ram.h b/migration/postcopy-ram.h index 587a8b86a7..77ea0fd264 100644 --- a/migration/postcopy-ram.h +++ b/migration/postcopy-ram.h @@ -72,14 +72,14 @@ void postcopy_discard_send_finish(MigrationState *ms, * returns 0 on success */ int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, - size_t pagesize); + RAMBlock *rb); /* * Place a zero page at (host) atomically * returns 0 on success */ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, - size_t pagesize); + RAMBlock *rb); /* The current postcopy state is read/set by postcopy_state_get/set * which update it atomically. diff --git a/migration/ram.c b/migration/ram.c index 1b19a899c9..bd4fc5ceb4 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -2753,10 +2753,10 @@ static int ram_load_postcopy(QEMUFile *f) if (all_zero) { ret = postcopy_place_page_zero(mis, place_dest, - block->page_size); + block); } else { ret = postcopy_place_page(mis, place_dest, - place_source, block->page_size); + place_source, block); } } if (!ret) { -- 2.11.0