From: Alexander Graf <agraf@suse•de>
To: Gavin Shan <gwshan@linux•vnet.ibm.com>, kvm-ppc@vger•kernel.org
Cc: aik@ozlabs•ru, alex.williamson@redhat•com,
qiudayu@linux•vnet.ibm.com, linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH 7/8] powerpc/powernv: Implement ppc_call_opal()
Date: Mon, 19 May 2014 14:59:47 +0200 [thread overview]
Message-ID: <537A0043.4050906@suse.de> (raw)
In-Reply-To: <1400040722-29608-8-git-send-email-gwshan@linux.vnet.ibm.com>
On 14.05.14 06:12, Gavin Shan wrote:
> If we're running PowerNV platform, ppc_firmware() will be directed
> to ppc_call_opal() where we can call to OPAL API accordingly. In
> ppc_call_opal(), the input argument are parsed out and call to
> appropriate OPAL API to handle that. Each request passed to the
> function is identified with token. As we get to the function either
> from host owned application (e.g. errinjct) or VM, we always have
> the first parameter (so-called "virtual") to differentiate the
> cases.
This sounds like nonsense. A virtual parameter? What is that supposed to be?
I don't think you can use this interface for VM device management, as
the syscall interface is (hopefully!) limited to CAP_ADMIN which you
(hopefully!) don't have as VFIO user.
Alex
next prev parent reply other threads:[~2014-05-19 12:59 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 4:11 [PATCH RFC v3 0/8] EEH Support for VFIO PCI device Gavin Shan
2014-05-14 4:11 ` [PATCH 1/8] drivers/vfio: Introduce CONFIG_VFIO_EEH Gavin Shan
2014-05-14 4:11 ` [PATCH 2/8] powerpc/eeh: Info to trace passed devices Gavin Shan
2014-05-19 12:46 ` Alexander Graf
2014-05-19 22:37 ` Benjamin Herrenschmidt
2014-05-19 23:54 ` Gavin Shan
2014-05-14 4:11 ` [PATCH 3/8] drivers/vfio: New IOCTL command VFIO_EEH_INFO Gavin Shan
2014-05-19 12:51 ` Alexander Graf
2014-05-19 23:57 ` Gavin Shan
2014-05-19 22:33 ` Alex Williamson
2014-05-19 22:51 ` Benjamin Herrenschmidt
2014-05-20 0:22 ` Gavin Shan
2014-05-20 0:37 ` Alex Williamson
2014-05-20 8:28 ` Gavin Shan
2014-05-20 10:02 ` Alexander Graf
2014-05-20 10:23 ` Gavin Shan
2014-05-14 4:11 ` [PATCH 4/8] powerpc/eeh: Avoid event on passed PE Gavin Shan
2014-05-14 4:11 ` [PATCH 5/8] powerpc/powernv: Sync OPAL header file with firmware Gavin Shan
2014-05-14 4:12 ` [PATCH 6/8] powerpc: Extend syscall ppc_rtas() Gavin Shan
2014-05-19 12:55 ` Alexander Graf
2014-05-19 22:38 ` Benjamin Herrenschmidt
2014-05-14 4:12 ` [PATCH 7/8] powerpc/powernv: Implement ppc_call_opal() Gavin Shan
2014-05-19 12:59 ` Alexander Graf [this message]
2014-05-14 4:12 ` [PATCH 8/8] powerpc/powernv: Error injection infrastructure Gavin Shan
2014-05-19 13:04 ` Alexander Graf
2014-05-19 22:40 ` Benjamin Herrenschmidt
2014-05-15 6:34 ` [PATCH RFC v3 0/8] EEH Support for VFIO PCI device Mike Qiu
2014-05-15 7:43 ` Gavin Shan
2014-05-19 10:07 ` Gavin Shan
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