From: Boqun Feng <boqun.feng@gmail.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org,
linux-pci@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Rob Herring <robh@kernel.org>, Clint Sbisa <csbisa@amazon.com>,
Boqun Feng <boqun.feng@gmail.com>,
Ard Biesheuvel <ardb@kernel.org>,
Sunil Muthuswamy <sunilmut@microsoft.com>
Subject: [RFC 2/2] PCI: hv: Tell PCI core arch-specific sysdata is used
Date: Sat, 20 Mar 2021 00:19:56 +0800 [thread overview]
Message-ID: <20210319161956.2838291-3-boqun.feng@gmail.com> (raw)
In-Reply-To: <20210319161956.2838291-1-boqun.feng@gmail.com>
Use the newly introduced ->use_arch_sysdata to tell PCI core, we still
use the arch-specific sysdata way to set up root PCI buses on
CONFIG_PCI_DOMAINS_GENERIC=y architectures, this is preparation fo
Hyper-V ARM64 guest virtual PCI support.
Signed-off-by: Boqun Feng (Microsoft) <boqun.feng@gmail.com>
---
drivers/pci/controller/pci-hyperv.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
index 27a17a1e4a7c..7cfa18d8a26e 100644
--- a/drivers/pci/controller/pci-hyperv.c
+++ b/drivers/pci/controller/pci-hyperv.c
@@ -859,6 +859,9 @@ static int hv_pcifront_write_config(struct pci_bus *bus, unsigned int devfn,
static struct pci_ops hv_pcifront_ops = {
.read = hv_pcifront_read_config,
.write = hv_pcifront_write_config,
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+ .use_arch_sysdata = 1,
+#endif
};
/*
--
2.30.2
next prev parent reply other threads:[~2021-03-19 16:21 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 16:19 [RFC 0/2] PCI: Introduce pci_ops::use_arch_sysdata Boqun Feng
2021-03-19 16:19 ` [RFC 1/2] arm64: PCI: Allow use arch-specific pci sysdata Boqun Feng
2021-03-19 21:12 ` Bjorn Helgaas
2021-03-20 12:54 ` Marc Zyngier
2021-03-20 13:03 ` Arnd Bergmann
2021-03-20 13:23 ` Marc Zyngier
2021-03-20 14:24 ` Arnd Bergmann
2021-03-20 17:14 ` Marc Zyngier
2021-03-20 12:54 ` Arnd Bergmann
2021-03-20 16:09 ` Arnd Bergmann
2021-03-29 14:32 ` Boqun Feng
2021-03-29 14:43 ` Arnd Bergmann
2021-03-20 12:52 ` Arnd Bergmann
2021-03-19 16:19 ` Boqun Feng [this message]
2021-03-19 19:04 ` [RFC 0/2] PCI: Introduce pci_ops::use_arch_sysdata Bjorn Helgaas
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