From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>,
Sergio Lopez <slp@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
qemu-devel@nongnu.org, Igor Mammedov <imammedo@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [PATCH 13/13] microvm/acpi: use GSI 16-23 for virtio
Date: Fri, 20 Mar 2020 11:30:16 -0400 [thread overview]
Message-ID: <20200320153016.GK4541@char.us.oracle.com> (raw)
In-Reply-To: <20200319080117.7725-14-kraxel@redhat.com>
On Thu, Mar 19, 2020 at 09:01:17AM +0100, Gerd Hoffmann wrote:
> With ACPI enabled and IO-APIC being properly declared in the ACPI tables
> we can use interrupt lines 16-23 for virtio and avoid shared interrupts.
7 interrupt lines? Is there a specific requirements of which
ones should be assigned to what device?
Or perhaps - could you include /proc/interrupts in the commit if that is OK?
>
> With acpi disabled we continue to use lines 8-15.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
> hw/i386/microvm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
> index 834b10aee0a2..139181daed06 100644
> --- a/hw/i386/microvm.c
> +++ b/hw/i386/microvm.c
> @@ -122,7 +122,7 @@ static void microvm_devices_init(MicrovmMachineState *mms)
>
> kvmclock_create();
>
> - mms->virtio_irq_base = 8;
> + mms->virtio_irq_base = acpi_enabled ? 16 : 8;
> for (i = 0; i < VIRTIO_NUM_TRANSPORTS; i++) {
> sysbus_create_simple("virtio-mmio",
> VIRTIO_MMIO_BASE + i * 512,
> --
> 2.18.2
>
next prev parent reply other threads:[~2020-03-20 15:38 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 ` [PATCH 05/13] microvm: add acpi_dsdt_add_virtio() for x86 Gerd Hoffmann
2020-03-19 14:30 ` 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 [this message]
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
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