From: Wayne Xia <xiawenc@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2] memory: simple memory tree printer
Date: Mon, 26 Sep 2011 16:07:08 +0800 [thread overview]
Message-ID: <4E8032AC.6000001@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAAu8pHtUY5H4y+KDVONfk3mfY7bsk6_9OfXG5U7b0jBjMuEK3Q@mail.gmail.com>
Tried it, good tool to inspect guest memory layout.
It would be more nice if some symbol could be used to show
hierarchies.
0000000000000000-7ffffffffffffffe : pci
|__00000000feba0000-00000000febbffff : e1000-mmio
|__00000000febf0000-00000000febf0fff : cirrus-mmio
|__000000fc000000-00000000fdffffff : cirrus-pci-bar0
|__00000000fc000000-00000000fc7fffff : vga.vram
于 2011-9-26 4:19, Blue Swirl 写道:
> Add a monitor command 'info mtree' to show the memory hierarchy
> much like /proc/iomem in Linux.
>
> Signed-off-by: Blue Swirl<blauwirbel@gmail.com>
> ---
> i386:
> memory
> 0000000000000000-7ffffffffffffffe : system
> 00000000000ec000-00000000000effff : alias pam-ram @pc.ram
> 00000000000ec000-00000000000effff
> 00000000000e8000-00000000000ebfff : alias pam-ram @pc.ram
> 00000000000e8000-00000000000ebfff
> 00000000000e4000-00000000000e7fff : alias pam-ram @pc.ram
> 00000000000e4000-00000000000e7fff
> 00000000000e0000-00000000000e3fff : alias pam-ram @pc.ram
> 00000000000e0000-00000000000e3fff
> 00000000000dc000-00000000000dffff : alias pam-ram @pc.ram
> 00000000000dc000-00000000000dffff
> 00000000000d8000-00000000000dbfff : alias pam-ram @pc.ram
> 00000000000d8000-00000000000dbfff
> 00000000000d4000-00000000000d7fff : alias pam-ram @pc.ram
> 00000000000d4000-00000000000d7fff
> 00000000000d0000-00000000000d3fff : alias pam-ram @pc.ram
> 00000000000d0000-00000000000d3fff
> 00000000000cc000-00000000000cffff : alias pam-ram @pc.ram
> 00000000000cc000-00000000000cffff
> 00000000000c8000-00000000000cbfff : alias pam-rom @pc.ram
> 00000000000c8000-00000000000cbfff
> 00000000000c4000-00000000000c7fff : alias pam-rom @pc.ram
> 00000000000c4000-00000000000c7fff
> 00000000000c0000-00000000000c3fff : alias pam-rom @pc.ram
> 00000000000c0000-00000000000c3fff
> 00000000000f0000-00000000000fffff : alias pam-rom @pc.ram
> 00000000000f0000-00000000000fffff
> 00000000000a0000-00000000000bffff : alias smram-region @pci
> 00000000000a0000-00000000000bffff
> 4000000000000000-7fffffffffffffff : alias pci-hole64 @pci
> 4000000000000000-7fffffffffffffff
> 0000000008000000-00000000ffffffff : alias pci-hole @pci
> 0000000008000000-00000000ffffffff
> 0000000000000000-0000000007ffffff : alias ram-below-4g @pc.ram
> 0000000000000000-0000000007ffffff
> 00000000fee00000-00000000feefffff : apic
> pci
> 0000000000000000-7ffffffffffffffe : pci
> 00000000feba0000-00000000febbffff : e1000-mmio
> 00000000febf0000-00000000febf0fff : cirrus-mmio
> 00000000fc000000-00000000fdffffff : cirrus-pci-bar0
> 00000000fc000000-00000000fc7fffff : vga.vram
> 00000000fd000000-00000000fd3fffff : cirrus-bitblt-mmio
> 00000000fc000000-00000000fc7fffff : cirrus-linear-io
> 00000000000a0000-00000000000bffff : cirrus-lowmem-container
> 00000000000a0000-00000000000bffff : cirrus-low-memory
> 00000000000c0000-00000000000dffff : pc.rom
> 00000000000e0000-00000000000fffff : alias isa-bios @pc.bios
> 00000000fffe0000-00000000ffffffff
> 00000000fffe0000-00000000ffffffff : pc.bios
> pc.ram
> 0000000000000000-0000000007ffffff : pc.ram
> pc.bios
> 00000000fffe0000-00000000ffffffff : pc.bios
> I/O
> 0000000000000000-000000000000ffff : io
> 000000000000c000-000000000000c03f : e1000-io
> 000000000000c040-000000000000c04f : piix-bmdma-container
> 000000000000c04c-000000000000c04f : bmdma
> 000000000000c048-000000000000c04b : piix-bmdma
> 000000000000c044-000000000000c047 : bmdma
> 000000000000c040-000000000000c043 : piix-bmdma
> 0000000000000cfc-0000000000000cff : pci-conf-data
> 0000000000000cf8-0000000000000cfb : pci-conf-idx
>
> PPC (HEAD)
> memory
> 00000000-fffffffe : system
> 800a0000-800affff : alias vga.chain4 @vga.vram 80000000-8000ffff
> 80880000-808fffff : macio
> 808e0000-808fffff : macio-nvram
> 808a0000-808a0fff : pmac-ide
> 80896000-80895fff : (null)
> 80893000-8089303f : alias escc-bar @escc 80013000-8001303f
> 80888000-80888fff : dbdma
> 80880000-80880fff : heathrow-pic
> 80800000-8080ffff : vga.rom
> 80000000-807fffff : vga.vram
> 800a0000-800bffff : vga-lowmem
> 80013000-8001303f : escc
> fee00000-fee00fff : pci-data-idx
> fec00000-fec00fff : pci-conf-idx
> fe000000-fe1fffff : isa-mmio
> escc
> 80013000-8001303f : escc
> vga.vram
> 80000000-807fffff : vga.vram
>
> PPC with my pci-hole patch:
> memory
> 00000000-fffffffe : system
> 80013000-8001303f : escc
> fee00000-fee00fff : pci-data-idx
> fec00000-fec00fff : pci-conf-idx
> 80000000-fdffffff : alias pci-hole @pci-mmio 80000000-fdffffff
> fe000000-fe1fffff : isa-mmio
> pci-mmio
> 00000000-ffffffff : pci-mmio
> 000a0000-000affff : alias vga.chain4 @vga.vram 80000000-8000ffff
> 80880000-808fffff : macio
> 808e0000-808fffff : macio-nvram
> 808a0000-808a0fff : pmac-ide
> 80896000-80895fff : (null)
> 80893000-8089303f : alias escc-bar @escc 80013000-8001303f
> 80888000-80888fff : dbdma
> 80880000-80880fff : heathrow-pic
> 80800000-8080ffff : vga.rom
> 80000000-807fffff : vga.vram
> 000a0000-000bffff : vga-lowmem
> escc
> 80013000-8001303f : escc
> vga.vram
> 80000000-807fffff : vga.vram
>
> Sparc64:
> 0000000000000000-7ffffffffffffffe : system
> 000001ff00000000-000001ffffffffff : pci-mmio
> 000001ff000a0000-000001ff000affff : alias vga.chain4 @vga.vram
> 0000000000800000-000000000080ffff
> 000001ff03000000-000001ff037fffff : isa-mmio
> 000001ff02000000-000001ff02ffffff : isa-mmio
> 000001ff01000000-000001ff0100ffff : vga.rom
> 000001ff00800000-000001ff00ffffff : vga.vram
> 000001ff00000000-000001ff000fffff : alias pci_bridge_mem
> @pci_pridge_pci 0000000000000000-00000000000fffff
> 000001ff00000000-000001ff000fffff : alias pci_bridge_pref_mem
> @pci_pridge_pci 0000000000000000-00000000000fffff
> 000001ff00000000-000001ff000fffff : alias pci_bridge_mem
> @pci_pridge_pci 0000000000000000-00000000000fffff
> 000001ff00000000-000001ff000fffff : alias pci_bridge_pref_mem
> @pci_pridge_pci 0000000000000000-00000000000fffff
> 000001ff000a0000-000001ff000bffff : vga-lowmem
> 000001fe02000000-000001fe0200ffff : apb-pci-ioport
> 000001fe01000000-000001fe01ffffff : apb-pci-config
> 000001fe00000000-000001fe0000ffff : apb-config
> pci_pridge_pci
> ^
> 0000000000000000-7ffffffffffffffe : pci_pridge_pci
> pci_pridge_pci
> 0000000000000000-7ffffffffffffffe : pci_pridge_pci
> vga.vram
> 0000000000800000-0000000000ffffff : vga.vram
>
> ---
> memory.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> memory.h | 2 +
> monitor.c | 7 ++++
> 3 files changed, 110 insertions(+), 0 deletions(-)
>
> diff --git a/memory.c b/memory.c
> index ba74435..6b33fc4 100644
> --- a/memory.c
> +++ b/memory.c
> @@ -17,6 +17,7 @@
> #include "bitops.h"
> #include "kvm.h"
> #include<assert.h>
> +#include "monitor.h"
>
> unsigned memory_region_transaction_depth = 0;
>
> @@ -1256,3 +1257,103 @@ void set_system_io_map(MemoryRegion *mr)
> address_space_io.root = mr;
> memory_region_update_topology();
> }
> +
> +typedef struct MemoryRegionList MemoryRegionList;
> +typedef struct MemoryRegionListHead MemoryRegionListHead;
> +
> +struct MemoryRegionList {
> + const MemoryRegion *mr;
> + QLIST_ENTRY(MemoryRegionList) queue;
> +};
> +
> +struct MemoryRegionListHead {
> + QLIST_HEAD(queue, MemoryRegionList) head;
> +};
> +
> +static void mtree_print_mr(Monitor *mon, const MemoryRegion *mr,
> + unsigned int level, target_phys_addr_t base,
> + MemoryRegionListHead *print_queue)
> +{
> + const MemoryRegion *submr;
> + unsigned int i;
> +
> + for (i = 0; i< level; i++) {
> + monitor_printf(mon, " ");
> + }
> +
> + if (mr->alias) {
> + if (print_queue) {
> + MemoryRegionList *ml;
> + bool found = false;
> +
> + /* check if the alias is already in the queue */
> + QLIST_FOREACH(ml,&print_queue->head, queue) {
> + if (ml->mr == mr->alias) {
> + found = true;
> + }
> + }
> +
> + if (!found) {
> + ml = g_malloc(sizeof(*ml));
> + ml->mr = mr->alias;
> + QLIST_INSERT_HEAD(&print_queue->head, ml, queue);
> + }
> + }
> + monitor_printf(mon, TARGET_FMT_plx "-" TARGET_FMT_plx " :
> alias %s @%s "
> + TARGET_FMT_plx "-" TARGET_FMT_plx "\n",
> + base + mr->addr,
> + base + mr->addr + (target_phys_addr_t)mr->size - 1,
> + mr->name,
> + mr->alias->name,
> + mr->alias_offset + mr->alias->addr,
> + mr->alias_offset + mr->alias->addr +
> + (target_phys_addr_t)mr->size - 1);
> +
> + } else {
> + monitor_printf(mon, TARGET_FMT_plx "-" TARGET_FMT_plx " : %s\n",
> + base + mr->addr,
> + base + mr->addr + (target_phys_addr_t)mr->size - 1,
> + mr->name);
> + }
> + QTAILQ_FOREACH(submr,&mr->subregions, subregions_link) {
> + mtree_print_mr(mon, submr, level + 1, base + mr->addr, print_queue);
> + }
> +}
> +
> +void mtree_info(Monitor *mon)
> +{
> + MemoryRegionListHead *ml_head, *ml_head2, *ml_tmp;
> + MemoryRegionList *ml, *ml2;
> +
> + ml_head = g_malloc(sizeof(*ml));
> + QLIST_INIT(&ml_head->head);
> +
> + monitor_printf(mon, "memory\n");
> + mtree_print_mr(mon, address_space_memory.root, 0, 0, ml_head);
> +
> + ml_head2 = g_malloc(sizeof(*ml));
> +
> + /* print aliased regions */
> + for (;;) {
> + QLIST_INIT(&ml_head2->head);
> +
> + QLIST_FOREACH_SAFE(ml,&ml_head->head, queue, ml2) {
> + monitor_printf(mon, "%s\n", ml->mr->name);
> + mtree_print_mr(mon, ml->mr, 0, 0, ml_head2);
> + g_free(ml);
> + }
> + if (QLIST_EMPTY(&ml_head->head)) {
> + break;
> + }
> + ml_tmp = ml_head;
> + ml_head = ml_head2;
> + ml_head2 = ml_tmp;
> + }
> +
> +#ifdef TARGET_I386
> + monitor_printf(mon, "I/O\n");
> + mtree_print_mr(mon, address_space_io.root, 0, 0, ml_head);
> +#endif
> + g_free(ml_head2);
> + g_free(ml_head);
> +}
> diff --git a/memory.h b/memory.h
> index 06b83ae..09d8e29 100644
> --- a/memory.h
> +++ b/memory.h
> @@ -500,6 +500,8 @@ void memory_region_transaction_begin(void);
> */
> void memory_region_transaction_commit(void);
>
> +void mtree_info(Monitor *mon);
> +
> #endif
>
> #endif
> diff --git a/monitor.c b/monitor.c
> index 8ec2c5e..f86fff6 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -2978,6 +2978,13 @@ static const mon_cmd_t info_cmds[] = {
> },
> #endif
> {
> + .name = "mtree",
> + .args_type = "",
> + .params = "",
> + .help = "show memory tree",
> + .mhandler.info = mtree_info,
> + },
> + {
> .name = "jit",
> .args_type = "",
> .params = "",
--
Best Regards
Wayne Xia
mail:xiawenc@linux.vnet.ibm.com
tel:86-010-82450803
next prev parent reply other threads:[~2011-09-26 8:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-25 20:19 [Qemu-devel] [PATCH v2] memory: simple memory tree printer Blue Swirl
2011-09-26 8:07 ` Wayne Xia [this message]
2011-09-26 9:45 ` Avi Kivity
2011-09-26 17:13 ` Blue Swirl
-- strict thread matches above, loose matches on Subject: below --
2011-09-17 19:27 Blue Swirl
2011-09-18 12:57 ` Jan Kiszka
2011-09-18 13:53 ` Avi Kivity
2011-09-18 14:07 ` Blue Swirl
2011-09-18 14:26 ` Avi Kivity
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