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  1. May 28, 2022
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    • Zhenwei Pi's avatar
      qga: Introduce disk smart · 22668881
      Zhenwei Pi authored 
      
After assigning a NVMe/SCSI controller to guest by VFIO, we lose
everything on the host side. A guest uses these devices exclusively,
we usually don't care the actions on these devices. But there is a
low probability that hitting physical hardware warning, we need a
chance to get the basic smart log info.

Introduce disk smart, and implement NVMe smart on linux.

Thanks to Keith and Marc-André.

CC: Keith Busch <kbusch@kernel.org>
Reviewed-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: default avatarzhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20220420022610.418052-3-pizhenwei@bytedance.com>
      22668881
    • Zhenwei Pi's avatar
      qga: Introduce NVMe disk bus type · d48f61c8
      Zhenwei Pi authored 
      
Assigning a NVMe disk by VFIO or emulating a NVMe controller by QEMU,
a NVMe disk get exposed in guest side. Support NVMe disk bus type and
implement posix version.

Test PCI passthrough case:
~#virsh qemu-agent-command buster '{"execute":"guest-get-disks"}' | jq
  ...
    {
      "name": "/dev/nvme0n1",
      "dependencies": [],
      "partition": false,
      "address": {
        "serial": "SAMSUNG MZQL23T8HCLS-00A07_S64HNE0N500076",
        "bus-type": "nvme",
        "bus": 0,
        "unit": 0,
        "pci-controller": {
          "bus": 0,
          "slot": 22,
          "domain": 0,
          "function": 0
        },
        "dev": "/dev/nvme0n1",
        "target": 0
      }
  ...

Reviewed-by: default avatarPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: default avatarzhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20220420022610.418052-2-pizhenwei@bytedance.com>
      d48f61c8
    • Andrew Deason's avatar
      qga/commands-posix: 'guest-shutdown' for Solaris · c8ec041d
      Andrew Deason authored 
      
On Solaris, instead of the -P, -H, and -r flags, we need to provide
the target init state to the 'shutdown' command: state 5 is poweroff,
0 is halt, and 6 is reboot. We also need to pass -g0 to avoid the
default 60-second delay, and -y to avoid a confirmation prompt.

Implement this logic under an #ifdef CONFIG_SOLARIS, so the
'guest-shutdown' command works properly on Solaris.

Signed-off-by: default avatarAndrew Deason <adeason@sinenomine.net>
Reviewed-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220426195526.7699-6-adeason@sinenomine.net>
      c8ec041d
    • Andrew Deason's avatar
      qga/commands-posix: Log all net stats failures · a539dc8a
      Andrew Deason authored 
      
guest_get_network_stats can silently fail in a couple of ways. Add
debug messages to these cases, so we're never completely silent on
failure.

Signed-off-by: default avatarAndrew Deason <adeason@sinenomine.net>
Reviewed-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220426195526.7699-5-adeason@sinenomine.net>
      a539dc8a
    • Andrew Deason's avatar
      qga/commands-posix: Fix listing ifaces for Solaris · 70335c46
      Andrew Deason authored 
      
The code for guest-network-get-interfaces needs a couple of small
adjustments for Solaris:

- The results from SIOCGIFHWADDR are documented as being in ifr_addr,
  not ifr_hwaddr (ifr_hwaddr doesn't exist on Solaris).

- The implementation of guest_get_network_stats is Linux-specific, so
  hide it under #ifdef CONFIG_LINUX. On non-Linux, we just won't
  provide network interface stats.

Signed-off-by: default avatarAndrew Deason <adeason@sinenomine.net>
Reviewed-by: default avatarMichal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-4-adeason@sinenomine.net>
      70335c46
    • Andrew Deason's avatar
      qga/commands-posix: Fix iface hw address detection · aec0730e
      Andrew Deason authored 
      
Since its introduction in commit 3424fc9f ("qemu-ga: add
guest-network-get-interfaces command"), guest-network-get-interfaces
seems to check if a given interface has a hardware address by checking
'ifa->ifa_flags & SIOCGIFHWADDR'. But ifa_flags is a field for IFF_*
flags (IFF_UP, IFF_LOOPBACK, etc), and comparing it to an ioctl like
SIOCGIFHWADDR doesn't make sense.

On Linux, this isn't a big deal, since SIOCGIFHWADDR has so many bits
set (0x8927), 'ifa->ifa_flags & SIOCGIFHWADDR' will usually have a
nonzero result for any 'normal'-looking interfaces: anything with
IFF_UP (0x1) or IFF_BROADCAST (0x2) set, as well as several
less-common flags. This means we'll try to get the hardware address
for most/all interfaces, even those that don't really have one (like
the loopback device). For those interfaces, Linux just returns a
hardware address of all zeroes.

On Solaris, however, trying to get the hardware address for a loopback
device returns an EADDRNOTAVAIL error. This causes us to return an
error and the entire guest-network-get-interfaces call fails.

Change this logic to always try to get the hardware address for each
interface, and don't return an error if we fail to get it. Instead,
just don't include the 'hardware-address' field in the result if we
can't get the hardware address.

Signed-off-by: default avatarAndrew Deason <adeason@sinenomine.net>
Reviewed-by: default avatarMichal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-3-adeason@sinenomine.net>
      aec0730e
    • Andrew Deason's avatar
      qga/commands-posix: Use getifaddrs when available · 59e35c7b
      Andrew Deason authored 
      
Currently, commands-posix.c assumes that getifaddrs() is only
available on Linux, and so the related guest agent command
guest-network-get-interfaces is only implemented for #ifdef __linux__.
This function does exist on other platforms, though, such as Solaris.
So, add a meson check for getifaddrs(), and move the code for
guest-network-get-interfaces to be built whenever getifaddrs() is
available.

The implementation for guest-network-get-interfaces still has some
Linux-specific code, which is not fixed in this commit. This commit
moves the relevant big chunks of code around without changing them, so
a future commit can change the code in place.

Signed-off-by: default avatarAndrew Deason <adeason@sinenomine.net>
Reviewed-by: default avatarMichal Privoznik <mprivozn@redhat.com>
Message-Id: <20220426195526.7699-2-adeason@sinenomine.net>
      59e35c7b
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