From 754cb9c0ebcf2164107baf39e75517e459887622 Mon Sep 17 00:00:00 2001 From: Yury Kotov Date: Fri, 15 Feb 2019 20:45:44 +0300 Subject: exec: Change RAMBlockIterFunc definition Currently, qemu_ram_foreach_* calls RAMBlockIterFunc with many block-specific arguments. But often iter func needs RAMBlock*. This refactoring is needed for fast access to RAMBlock flags from qemu_ram_foreach_block's callback. The only way to achieve this now is to call qemu_ram_block_from_host (which also enumerates blocks). So, this patch reduces complexity of qemu_ram_foreach_block() -> cb() -> qemu_ram_block_from_host() from O(n^2) to O(n). Fix RAMBlockIterFunc definition and add some functions to read RAMBlock* fields witch were passed. Signed-off-by: Yury Kotov Message-Id: <20190215174548.2630-2-yury-kotov@yandex-team.ru> Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Dr. David Alan Gilbert --- stubs/ram-block.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'stubs/ram-block.c') diff --git a/stubs/ram-block.c b/stubs/ram-block.c index cfa5d8678f..73c0a3ee08 100644 --- a/stubs/ram-block.c +++ b/stubs/ram-block.c @@ -2,6 +2,21 @@ #include "exec/ramlist.h" #include "exec/cpu-common.h" +void *qemu_ram_get_host_addr(RAMBlock *rb) +{ + return 0; +} + +ram_addr_t qemu_ram_get_offset(RAMBlock *rb) +{ + return 0; +} + +ram_addr_t qemu_ram_get_used_length(RAMBlock *rb) +{ + return 0; +} + void ram_block_notifier_add(RAMBlockNotifier *n) { } -- cgit v1.2.3