linux-kernel - [PATCH 4.19 066/113] PCI: mobiveil: Use the 1st inbound window for MEM inbound transactions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 29 Jul 2019 21:22:33 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hou Zhiqiang <Zhiqiang.Hou@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Minghuan Lian <Minghuan.Lian@....com>,
        Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 066/113] PCI: mobiveil: Use the 1st inbound window for MEM inbound transactions

[ Upstream commit f7fee1b42fe4f8171a4b1cad05c61907c33c53f6 ]

The inbound and outbound windows have completely separate control
registers sets in the host controller MMIO space. Windows control
register are accessed through an MMIO base address and an offset
that depends on the window index.

Since inbound and outbound windows control registers are completely
separate there is no real need to use different window indexes in the
inbound/outbound windows initialization routines to prevent clashing.

To fix this inconsistency, change the MEM inbound window index to 0,
mirroring the outbound window set-up.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
[lorenzo.pieralisi@....com: update commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Reviewed-by: Minghuan Lian <Minghuan.Lian@....com>
Reviewed-by: Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/pci/controller/pcie-mobiveil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index 2fe7ebdad2d2..a2d1e89d4867 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -553,7 +553,7 @@ static int mobiveil_host_init(struct mobiveil_pcie *pcie)
 			resource_size(pcie->ob_io_res));
 
 	/* memory inbound translation window */
-	program_ib_windows(pcie, WIN_NUM_1, 0, MEM_WINDOW_TYPE, IB_WIN_SIZE);
+	program_ib_windows(pcie, WIN_NUM_0, 0, MEM_WINDOW_TYPE, IB_WIN_SIZE);
 
 	/* Get the I/O and memory ranges from DT */
 	resource_list_for_each_entry_safe(win, tmp, &pcie->resources) {
-- 
2.20.1