diff options
| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2019-04-12 16:26:52 +0100 |
|---|---|---|
| committer | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2019-05-01 10:46:59 +0100 |
| commit | 574d96933ceff60b2d13fe97602572fc7e95f7c6 (patch) | |
| tree | ec4a2ca2ebff19f5620c50a147d972562928866e /hmp-commands.hx | |
| parent | b4e492db03a25395087e867f8f944f7b2a2e1cef (diff) | |
hmp: gva2gpa debug command
Add a gva2gpa command purely for debug which performs
address translation on the gva, the existing gpa2hva
command can then also be used to find it in the qemu
userspace; e.g.
(qemu) info registers
.... RSP=ffffffff81c03e98
....
(qemu) gva2gpa 0xffffffff81c03e98
gpa: 0x1c03e98
(qemu) gpa2hva 0x1c03e98
Host virtual address for 0x1c03e98 (pc.ram) is 0x7f0599a03e98
(qemu) x/10x 0xffffffff81c03e98
ffffffff81c03e98: 0x81c03eb8 0xffffffff 0x8101ea3f 0xffffffff
ffffffff81c03ea8: 0x81d27b00 0xffffffff 0x00000000 0x00000000
ffffffff81c03eb8: 0x81c03ec8 0xffffffff
gdb -p ...qemu...
(gdb) x/10x 0x7f0599a03e98
0x7f0599a03e98: 0x81c03eb8 0xffffffff 0x8101ea3f 0xffffffff
0x7f0599a03ea8: 0x81d27b00 0xffffffff 0x00000000 0x00000000
0x7f0599a03eb8: 0x81c03ec8 0xffffffff
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190412152652.827-1-dgilbert@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'hmp-commands.hx')
| -rw-r--r-- | hmp-commands.hx | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx index 9b4035965c..a2c3ffc218 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -588,6 +588,21 @@ is mapped. ETEXI { + .name = "gva2gpa", + .args_type = "addr:l", + .params = "addr", + .help = "print the guest physical address corresponding to a guest virtual address", + .cmd = hmp_gva2gpa, + }, + +STEXI +@item gva2gpa @var{addr} +@findex gva2gpa +Print the guest physical address at which the guest's virtual address @var{addr} +is mapped based on the mapping for the current CPU. +ETEXI + + { .name = "p|print", .args_type = "fmt:/,val:l", .params = "/fmt expr", |