From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: Eduardo Habkost <ehabkost@redhat.com>,
Sergio Lopez <slp@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Igor Mammedov <imammedo@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: [PATCH 05/13] microvm: add acpi_dsdt_add_virtio() for x86
Date: Thu, 19 Mar 2020 09:01:09 +0100 [thread overview]
Message-ID: <20200319080117.7725-6-kraxel@redhat.com> (raw)
In-Reply-To: <20200319080117.7725-1-kraxel@redhat.com>
Makes x86 linux kernel find virtio-mmio devices automatically.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/i386/acpi-build.c | 51 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 0e45a646af56..80844db24d6b 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -21,6 +21,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/cutils.h"
#include "qapi/error.h"
#include "qapi/qmp/qnum.h"
#include "acpi-build.h"
@@ -60,6 +61,7 @@
#include "hw/pci-host/q35.h"
#include "hw/i386/x86-iommu.h"
#include "hw/i386/microvm.h"
+#include "hw/virtio/virtio-mmio.h"
#include "hw/acpi/aml-build.h"
#include "hw/acpi/utils.h"
@@ -2750,6 +2752,54 @@ static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg)
return true;
}
+static void acpi_dsdt_add_virtio(Aml *scope)
+{
+ gchar *separator;
+ long int index;
+ BusState *bus;
+ BusChild *kid;
+
+ bus = sysbus_get_default();
+ QTAILQ_FOREACH(kid, &bus->children, sibling) {
+ DeviceState *dev = kid->child;
+ ObjectClass *class = object_get_class(OBJECT(dev));
+
+ if (class == object_class_by_name(TYPE_VIRTIO_MMIO)) {
+ VirtIOMMIOProxy *mmio = VIRTIO_MMIO(OBJECT(dev));
+ VirtioBusState *mmio_virtio_bus = &mmio->bus;
+ BusState *mmio_bus = &mmio_virtio_bus->parent_obj;
+
+ if (QTAILQ_EMPTY(&mmio_bus->children)) {
+ continue;
+ }
+ separator = g_strrstr(mmio_bus->name, ".");
+ if (!separator) {
+ continue;
+ }
+ if (qemu_strtol(separator + 1, NULL, 10, &index) != 0) {
+ continue;
+ }
+
+ uint32_t irq = VIRTIO_IRQ_BASE + index;
+ hwaddr base = VIRTIO_MMIO_BASE + index * 512;
+ hwaddr size = 512;
+
+ Aml *dev = aml_device("VR%02u", (unsigned)index);
+ aml_append(dev, aml_name_decl("_HID", aml_string("LNRO0005")));
+ aml_append(dev, aml_name_decl("_UID", aml_int(index)));
+ aml_append(dev, aml_name_decl("_CCA", aml_int(1)));
+
+ Aml *crs = aml_resource_template();
+ aml_append(crs, aml_memory32_fixed(base, size, AML_READ_WRITE));
+ aml_append(crs,
+ aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH,
+ AML_EXCLUSIVE, &irq, 1));
+ aml_append(dev, aml_name_decl("_CRS", crs));
+ aml_append(scope, dev);
+ }
+ }
+}
+
static void
build_dsdt_microvm(GArray *table_data, BIOSLinker *linker,
MicrovmMachineState *mms)
@@ -2766,6 +2816,7 @@ build_dsdt_microvm(GArray *table_data, BIOSLinker *linker,
sb_scope = aml_scope("_SB");
acpi_dsdt_add_fw_cfg(sb_scope, OBJECT(x86ms->fw_cfg));
+ acpi_dsdt_add_virtio(sb_scope);
aml_append(dsdt, sb_scope);
scope = aml_scope("\\");
--
2.18.2
next prev parent reply other threads:[~2020-03-19 8:11 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 8:01 [PATCH 00/13] microvm: add acpi support Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 01/13] acpi: make build_madt() more generic Gerd Hoffmann
2020-03-19 9:34 ` Philippe Mathieu-Daudé
2020-03-19 8:01 ` [PATCH 02/13] acpi: factor out acpi_dsdt_add_fw_cfg() Gerd Hoffmann
2020-03-19 9:36 ` Philippe Mathieu-Daudé
2020-03-19 12:16 ` Igor Mammedov
2020-03-19 8:01 ` [PATCH 03/13] microvm: add isa-acpi device Gerd Hoffmann
2020-03-19 13:42 ` Igor Mammedov
2020-03-20 8:22 ` Gerd Hoffmann
2020-03-20 14:54 ` Igor Mammedov
2020-03-19 8:01 ` [PATCH 04/13] microvm: add minimal acpi support Gerd Hoffmann
2020-03-19 14:00 ` Igor Mammedov
2020-03-25 9:04 ` Gerd Hoffmann
2020-03-25 18:59 ` Igor Mammedov
2020-03-19 8:01 ` Gerd Hoffmann [this message]
2020-03-19 14:30 ` [PATCH 05/13] microvm: add acpi_dsdt_add_virtio() for x86 Igor Mammedov
2020-03-20 8:19 ` Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 06/13] microvm: disable virtio-mmio cmdline hack Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 07/13] [testing] seabios: update submodule to experimental microvm branch Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 08/13] [testing] seabios: update config & build rules Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 09/13] [testing] seabios: update binaries to experimental microvm branch Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 10/13] microvm/acpi: add rtc Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 11/13] microvm/acpi: add serial Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 12/13] microvm: make virtio irq base runtime configurable Gerd Hoffmann
2020-03-19 8:01 ` [PATCH 13/13] microvm/acpi: use GSI 16-23 for virtio Gerd Hoffmann
2020-03-20 15:30 ` Konrad Rzeszutek Wilk
2020-03-23 10:23 ` Gerd Hoffmann
2020-03-19 8:19 ` [PATCH 00/13] microvm: add acpi support no-reply
2020-03-19 8:23 ` no-reply
2020-03-19 8:24 ` no-reply
2020-03-19 8:49 ` Paolo Bonzini
2020-03-19 9:33 ` Gerd Hoffmann
2020-03-19 9:59 ` Paolo Bonzini
2020-03-19 11:28 ` Gerd Hoffmann
2020-03-19 13:40 ` Gerd Hoffmann
2020-03-19 17:34 ` Paolo Bonzini
2020-03-20 8:32 ` Gerd Hoffmann
2020-03-20 10:41 ` Paolo Bonzini
2020-03-23 10:51 ` Michael S. Tsirkin
2020-03-23 12:09 ` Gerd Hoffmann
2020-03-23 12:16 ` Igor Mammedov
2020-03-25 9:16 ` Gerd Hoffmann
2020-03-25 9:53 ` Igor Mammedov
2020-03-25 18:56 ` Igor Mammedov
2020-03-25 12:32 ` Igor Mammedov
2020-03-25 15:03 ` Gerd Hoffmann
2020-03-25 18:44 ` Igor Mammedov
2020-03-26 7:33 ` Michael S. Tsirkin
2020-03-26 10:59 ` Igor Mammedov
2020-03-27 12:06 ` Gerd Hoffmann
2020-03-27 14:05 ` Igor Mammedov
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=20200319080117.7725-6-kraxel@redhat.com \
--to=kraxel@redhat.com \
--cc=ehabkost@redhat.com \
--cc=imammedo@redhat.com \
--cc=mst@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rth@twiddle.net \
--cc=slp@redhat.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).