From: Stefan Hajnoczi <stefanha@redhat.com>
To: Elena Afanasova <eafanasova@gmail.com>
Cc: kvm@vger.kernel.org, jag.raman@oracle.com,
elena.ufimtseva@oracle.com, pbonzini@redhat.com,
jasowang@redhat.com, mst@redhat.com, cohuck@redhat.com,
john.levon@nutanix.com
Subject: Re: [RFC v3 1/5] KVM: add initial support for KVM_SET_IOREGION
Date: Wed, 24 Feb 2021 10:06:07 +0000 [thread overview]
Message-ID: <YDYlD3ncm2bq7xSx@stefanha-x1.localdomain> (raw)
In-Reply-To: <f77bbc58289508b5b0633521cf8c03eb0303707a.1613828727.git.eafanasova@gmail.com>
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On Sun, Feb 21, 2021 at 03:04:37PM +0300, Elena Afanasova wrote:
> diff --git a/virt/kvm/ioregion.c b/virt/kvm/ioregion.c
> new file mode 100644
> index 000000000000..e09ef3e2c9d7
> --- /dev/null
> +++ b/virt/kvm/ioregion.c
> @@ -0,0 +1,265 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +#include <linux/kvm_host.h>
> +#include <linux/fs.h>
> +#include <kvm/iodev.h>
> +#include "eventfd.h"
> +
> +void
> +kvm_ioregionfd_init(struct kvm *kvm)
> +{
> + INIT_LIST_HEAD(&kvm->ioregions_fast_mmio);
> + INIT_LIST_HEAD(&kvm->ioregions_mmio);
> + INIT_LIST_HEAD(&kvm->ioregions_pio);
> +}
> +
> +struct ioregion {
> + struct list_head list;
Linux struct list_head gives no clue about which list this belongs to.
You can help readers by adding a comment:
/* struct kvm ioregions_fast_mmio/ioregions_mmio/ioregions_pio */
> + u64 paddr; /* guest physical address */
> + u64 size; /* size in bytes */
> + struct file *rf;
+ struct file *rf; /* responses are read from this */
> + struct file *wf;
+ struct file *wf; /* commands are written to this */
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next prev parent reply other threads:[~2021-02-24 10:07 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-21 12:04 [RFC v3 0/5] Introduce MMIO/PIO dispatch file descriptors (ioregionfd) Elena Afanasova
2021-02-21 12:04 ` [RFC v3 1/5] KVM: add initial support for KVM_SET_IOREGION Elena Afanasova
2021-02-24 10:06 ` Stefan Hajnoczi [this message]
2021-03-05 13:09 ` Cornelia Huck
2021-03-09 5:26 ` Jason Wang
2021-03-22 9:57 ` Stefan Hajnoczi
2021-02-21 12:04 ` [RFC v3 2/5] KVM: x86: add support for ioregionfd signal handling Elena Afanasova
2021-02-24 10:42 ` Stefan Hajnoczi
2021-03-09 5:51 ` Jason Wang
2021-03-17 14:19 ` Elena Afanasova
2021-03-26 6:00 ` Jason Wang
2021-02-21 12:04 ` [RFC v3 3/5] KVM: implement wire protocol Elena Afanasova
2021-02-24 11:02 ` Stefan Hajnoczi
2021-03-09 6:19 ` Jason Wang
2021-03-17 13:08 ` Elena Afanasova
2021-03-26 6:21 ` Jason Wang
2021-03-29 16:17 ` Stefan Hajnoczi
2021-02-21 12:04 ` [RFC v3 4/5] KVM: add ioregionfd context Elena Afanasova
2021-02-24 11:27 ` Stefan Hajnoczi
2021-03-09 7:54 ` Jason Wang
2021-03-09 8:01 ` Paolo Bonzini
2021-03-10 13:20 ` Elena Afanasova
2021-03-10 14:11 ` Paolo Bonzini
2021-03-10 16:41 ` Elena Afanasova
[not found] ` <6ff79d0b-3b6a-73d3-ffbd-e4af9758735f@redhat.com>
2021-03-17 10:46 ` Elena Afanasova
2021-03-26 6:47 ` Jason Wang
2021-02-21 12:04 ` [RFC v3 5/5] KVM: enforce NR_IOBUS_DEVS limit if kmemcg is disabled Elena Afanasova
2021-02-21 17:06 ` [RFC v3 0/5] Introduce MMIO/PIO dispatch file descriptors (ioregionfd) Paolo Bonzini
2021-02-22 16:40 ` Elena Afanasova
2021-02-24 11:34 ` Stefan Hajnoczi
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