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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4E8032AC.6000001@linux.vnet.ibm.com \
--to=xiawenc@linux.vnet.ibm.com \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.