|
 |
4a2fec |
From 7802df183a0b1f457c97e6f920e720f6fef36a18 Mon Sep 17 00:00:00 2001
|
|
|
4a2fec |
From: Marcel Apfelbaum <marcel@redhat.com>
|
|
|
4a2fec |
Date: Mon, 13 Nov 2017 19:03:30 +0100
|
|
|
4a2fec |
Subject: [PATCH 04/30] hw/gen_pcie_root_port: make IO RO 0 on IO disabled
|
|
|
4a2fec |
|
|
|
4a2fec |
RH-Author: Marcel Apfelbaum <marcel@redhat.com>
|
|
|
4a2fec |
Message-id: <20171113190330.57188-1-marcel@redhat.com>
|
|
|
4a2fec |
Patchwork-id: 77666
|
|
|
4a2fec |
O-Subject: [RHEL-7.5 qemu-kvm-rhev PATCH] hw/gen_pcie_root_port: make IO RO 0 on IO disabled
|
|
|
4a2fec |
Bugzilla: 1344299
|
|
|
4a2fec |
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
|
|
|
4a2fec |
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
|
|
|
4a2fec |
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
|
|
|
4a2fec |
|
|
|
4a2fec |
IO_LIMIT and IO_BASE registers should not be writable if
|
|
|
4a2fec |
gen_pcie_root_port's io-reserve property is set to 0.
|
|
|
4a2fec |
The COMMAND register should have the IO flag read only.
|
|
|
4a2fec |
|
|
|
4a2fec |
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
|
|
|
4a2fec |
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
|
|
|
4a2fec |
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
|
|
4a2fec |
(cherry picked from commit 8e36c336d943c3bfe0d06f5465cc64d44b306e13)
|
|
|
4a2fec |
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
|
|
|
4a2fec |
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
|
4a2fec |
---
|
|
|
4a2fec |
hw/pci-bridge/gen_pcie_root_port.c | 7 +++++++
|
|
|
4a2fec |
1 file changed, 7 insertions(+)
|
|
|
4a2fec |
|
|
|
4a2fec |
diff --git a/hw/pci-bridge/gen_pcie_root_port.c b/hw/pci-bridge/gen_pcie_root_port.c
|
|
|
4a2fec |
index ed03ffc..ad4e6aa 100644
|
|
|
4a2fec |
--- a/hw/pci-bridge/gen_pcie_root_port.c
|
|
|
4a2fec |
+++ b/hw/pci-bridge/gen_pcie_root_port.c
|
|
|
4a2fec |
@@ -85,6 +85,13 @@ static void gen_rp_realize(DeviceState *dev, Error **errp)
|
|
|
4a2fec |
rpc->parent_class.exit(d);
|
|
|
4a2fec |
return;
|
|
|
4a2fec |
}
|
|
|
4a2fec |
+
|
|
|
4a2fec |
+ if (!grp->io_reserve) {
|
|
|
4a2fec |
+ pci_word_test_and_clear_mask(d->wmask + PCI_COMMAND,
|
|
|
4a2fec |
+ PCI_COMMAND_IO);
|
|
|
4a2fec |
+ d->wmask[PCI_IO_BASE] = 0;
|
|
|
4a2fec |
+ d->wmask[PCI_IO_LIMIT] = 0;
|
|
|
4a2fec |
+ }
|
|
|
4a2fec |
}
|
|
|
4a2fec |
|
|
|
4a2fec |
static const VMStateDescription vmstate_rp_dev = {
|
|
|
4a2fec |
--
|
|
|
4a2fec |
1.8.3.1
|
|
|
4a2fec |
|