From: Eric Auger <eric.auger@linaro.org>
To: eric.auger@st.com, eric.auger@linaro.org,
christoffer.dall@linaro.org, marc.zyngier@arm.com,
andre.przywara@arm.com, p.fedin@samsung.com,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org
Cc: patches@linaro.org
Subject: [RFC 1/6] KVM: api: add kvm_irq_routing_extended_msi
Date: Thu, 18 Jun 2015 19:40:53 +0200 [thread overview]
Message-ID: <1434649258-27065-2-git-send-email-eric.auger@linaro.org> (raw)
In-Reply-To: <1434649258-27065-1-git-send-email-eric.auger@linaro.org>
On ARM, the MSI msg (address and data) comes along with
out-of-band device ID information. The device ID encodes the device
that composes the MSI msg. Let's create a new routing entry structure
that enables to encode that information on top of standard MSI
message
Signed-off-by: Eric Auger <eric.auger@linaro.org>
---
Documentation/virtual/kvm/api.txt | 9 +++++++++
include/uapi/linux/kvm.h | 9 +++++++++
2 files changed, 18 insertions(+)
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index d20fd94..bcec91e 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1419,6 +1419,7 @@ struct kvm_irq_routing_entry {
struct kvm_irq_routing_irqchip irqchip;
struct kvm_irq_routing_msi msi;
struct kvm_irq_routing_s390_adapter adapter;
+ struct kvm_irq_routing_extended_msi ext_msi;
__u32 pad[8];
} u;
};
@@ -1427,6 +1428,7 @@ struct kvm_irq_routing_entry {
#define KVM_IRQ_ROUTING_IRQCHIP 1
#define KVM_IRQ_ROUTING_MSI 2
#define KVM_IRQ_ROUTING_S390_ADAPTER 3
+#define KVM_IRQ_ROUTING_EXTENDED_MSI 4
No flags are specified so far, the corresponding field must be set to zero.
@@ -1442,6 +1444,13 @@ struct kvm_irq_routing_msi {
__u32 pad;
};
+struct kvm_irq_routing_extended_msi {
+ __u32 address_lo;
+ __u32 address_hi;
+ __u32 data;
+ __u32 devid;
+};
+
struct kvm_irq_routing_s390_adapter {
__u64 ind_addr;
__u64 summary_addr;
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 2a23705..e3f65a0 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -829,6 +829,13 @@ struct kvm_irq_routing_msi {
__u32 pad;
};
+struct kvm_irq_routing_extended_msi {
+ __u32 address_lo;
+ __u32 address_hi;
+ __u32 data;
+ __u32 devid;
+};
+
struct kvm_irq_routing_s390_adapter {
__u64 ind_addr;
__u64 summary_addr;
@@ -841,6 +848,7 @@ struct kvm_irq_routing_s390_adapter {
#define KVM_IRQ_ROUTING_IRQCHIP 1
#define KVM_IRQ_ROUTING_MSI 2
#define KVM_IRQ_ROUTING_S390_ADAPTER 3
+#define KVM_IRQ_ROUTING_EXTENDED_MSI 4
struct kvm_irq_routing_entry {
__u32 gsi;
@@ -851,6 +859,7 @@ struct kvm_irq_routing_entry {
struct kvm_irq_routing_irqchip irqchip;
struct kvm_irq_routing_msi msi;
struct kvm_irq_routing_s390_adapter adapter;
+ struct kvm_irq_routing_extended_msi ext_msi;
__u32 pad[8];
} u;
};
--
1.9.1
next prev parent reply other threads:[~2015-06-18 17:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-18 17:40 [RFC 0/6] KVM: arm/arm64: gsi routing support Eric Auger
2015-06-18 17:40 ` Eric Auger [this message]
2015-06-22 16:32 ` [RFC 1/6] KVM: api: add kvm_irq_routing_extended_msi Andre Przywara
2015-06-23 7:36 ` Eric Auger
2015-06-18 17:40 ` [RFC 2/6] KVM: kvm_host: add kvm_extended_msi Eric Auger
2015-06-18 17:40 ` [RFC 3/6] KVM: irqchip: convey devid to kvm_set_msi Eric Auger
2015-06-18 17:40 ` [RFC 4/6] KVM: arm/arm64: enable irqchip routing Eric Auger
2015-06-18 17:53 ` Marc Zyngier
2015-06-18 18:00 ` Eric Auger
2015-06-18 18:07 ` Marc Zyngier
2015-06-18 17:40 ` [RFC 5/6] KVM: arm/arm64: enable MSI routing Eric Auger
2015-06-18 17:40 ` [RFC 6/6] KVM: arm: implement kvm_set_msi by gsi direct mapping Eric Auger
2015-06-19 6:37 ` [RFC 0/6] KVM: arm/arm64: gsi routing support Pavel Fedin
2015-06-22 8:31 ` Eric Auger
2015-06-22 8:40 ` Andre Przywara
2015-06-22 9:21 ` Eric Auger
2015-06-23 7:38 ` Pavel Fedin
2015-06-23 7:50 ` Eric Auger
2015-06-23 8:50 ` Pavel Fedin
2015-06-23 9:44 ` Eric Auger
2015-06-23 9:03 ` Andre Przywara
2015-06-23 9:33 ` Eric Auger
2015-06-23 12:53 ` Eric Auger
2015-06-24 12:20 ` Pavel Fedin
2015-06-24 13:03 ` Eric Auger
2015-06-25 8:46 ` Pavel Fedin
2015-06-26 16:17 ` Eric Auger
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=1434649258-27065-2-git-send-email-eric.auger@linaro.org \
--to=eric.auger@linaro.org \
--cc=andre.przywara@arm.com \
--cc=christoffer.dall@linaro.org \
--cc=eric.auger@st.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=marc.zyngier@arm.com \
--cc=p.fedin@samsung.com \
--cc=patches@linaro.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.