From 57bb40c9db408f692ec0a5365a141524b5cd7680 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Mon, 16 Jan 2017 16:40:05 +0800 Subject: [PATCH] memory: hmp: add "-f" for "info mtree" Adding one more option "-f" for "info mtree" to dump the flat views of all the address spaces. This will be useful to debug the memory rendering logic, also it'll be much easier with it to know what memory region is handling what address range. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Peter Xu Message-Id: <1484556005-29701-3-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini --- hmp-commands-info.hx | 6 +++--- include/exec/memory.h | 2 +- memory.c | 41 ++++++++++++++++++++++++++++++++++++++++- monitor.c | 4 +++- 4 files changed, 47 insertions(+), 6 deletions(-) diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx index 55d50c42c6..b0f35e6829 100644 --- a/hmp-commands-info.hx +++ b/hmp-commands-info.hx @@ -249,9 +249,9 @@ ETEXI { .name = "mtree", - .args_type = "", - .params = "", - .help = "show memory tree", + .args_type = "flatview:-f", + .params = "[-f]", + .help = "show memory tree (-f: dump flat view for address spaces)", .cmd = hmp_info_mtree, }, diff --git a/include/exec/memory.h b/include/exec/memory.h index a10044f08f..987f9251c6 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1250,7 +1250,7 @@ void memory_global_dirty_log_start(void); */ void memory_global_dirty_log_stop(void); -void mtree_info(fprintf_function mon_printf, void *f); +void mtree_info(fprintf_function mon_printf, void *f, bool flatview); /** * memory_region_dispatch_read: perform a read directly to the specified diff --git a/memory.c b/memory.c index c42bde4041..6498727552 100644 --- a/memory.c +++ b/memory.c @@ -2564,12 +2564,51 @@ static void mtree_print_mr(fprintf_function mon_printf, void *f, } } -void mtree_info(fprintf_function mon_printf, void *f) +static void mtree_print_flatview(fprintf_function p, void *f, + AddressSpace *as) +{ + FlatView *view = address_space_get_flatview(as); + FlatRange *range = &view->ranges[0]; + MemoryRegion *mr; + int n = view->nr; + + if (n <= 0) { + p(f, MTREE_INDENT "No rendered FlatView for " + "address space '%s'\n", as->name); + flatview_unref(view); + return; + } + + while (n--) { + mr = range->mr; + p(f, MTREE_INDENT TARGET_FMT_plx "-" + TARGET_FMT_plx " (prio %d, %s): %s\n", + int128_get64(range->addr.start), + int128_get64(range->addr.start) + MR_SIZE(range->addr.size), + mr->priority, + memory_region_type(mr), + memory_region_name(mr)); + range++; + } + + flatview_unref(view); +} + +void mtree_info(fprintf_function mon_printf, void *f, bool flatview) { MemoryRegionListHead ml_head; MemoryRegionList *ml, *ml2; AddressSpace *as; + if (flatview) { + QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { + mon_printf(f, "address-space (flat view): %s\n", as->name); + mtree_print_flatview(mon_printf, f, as); + mon_printf(f, "\n"); + } + return; + } + QTAILQ_INIT(&ml_head); QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) { diff --git a/monitor.c b/monitor.c index 8b06b63729..6ac4e95ef7 100644 --- a/monitor.c +++ b/monitor.c @@ -1529,7 +1529,9 @@ static void hmp_boot_set(Monitor *mon, const QDict *qdict) static void hmp_info_mtree(Monitor *mon, const QDict *qdict) { - mtree_info((fprintf_function)monitor_printf, mon); + bool flatview = qdict_get_try_bool(qdict, "flatview", false); + + mtree_info((fprintf_function)monitor_printf, mon, flatview); } static void hmp_info_numa(Monitor *mon, const QDict *qdict)