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From a558699e5f028623c2d5f9bb60d28b8f56b7766a Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Fri, 11 Jul 2014 14:20:36 +0200
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Subject: [PATCH 03/43] uhci: egsm fix
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Message-id: <1405088470-24115-4-git-send-email-kraxel@redhat.com>
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Patchwork-id: 59820
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O-Subject: [RHEL-7.1 qemu-kvm PATCH 03/37] uhci: egsm fix
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Bugzilla: 1046873
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RH-Acked-by: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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When the guest goes suspend the uhci controller while there are
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pending resume requests on the ports go signal global resume
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instantly.
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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(cherry picked from commit 9f0f1a0c096f29a856f2e6903beda45b44ce9cdd)
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---
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hw/usb/hcd-uhci.c | 7 +++++++
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1 file changed, 7 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/usb/hcd-uhci.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
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index 3380107..989c37a 100644
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--- a/hw/usb/hcd-uhci.c
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+++ b/hw/usb/hcd-uhci.c
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@@ -191,6 +191,7 @@ bool ich9_uhci123_irqpin_override;
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static void uhci_async_cancel(UHCIAsync *async);
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static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td);
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+static void uhci_resume(void *opaque);
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static inline int32_t uhci_queue_token(UHCI_TD *td)
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{
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@@ -500,6 +501,12 @@ static void uhci_port_write(void *opaque, hwaddr addr,
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return;
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}
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s->cmd = val;
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+ if (val & UHCI_CMD_EGSM) {
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+ if ((s->ports[0].ctrl & UHCI_PORT_RD) ||
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+ (s->ports[1].ctrl & UHCI_PORT_RD)) {
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+ uhci_resume(s);
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+ }
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+ }
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break;
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case 0x02:
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s->status &= ~val;
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--
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1.8.3.1
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