From: Alexandru Elisei <alexandru.elisei@arm.com>
To: kvm@vger.kernel.org
Cc: will@kernel.org, julien.thierry.kdev@gmail.com,
andre.przywara@arm.com, sami.mujawar@arm.com,
lorenzo.pieralisi@arm.com, maz@kernel.org,
Julien Thierry <julien.thierry@arm.com>
Subject: [PATCH v2 kvmtool 09/30] arm/pci: Fix PCI IO region
Date: Thu, 23 Jan 2020 13:47:44 +0000 [thread overview]
Message-ID: <20200123134805.1993-10-alexandru.elisei@arm.com> (raw)
In-Reply-To: <20200123134805.1993-1-alexandru.elisei@arm.com>
From: Julien Thierry <julien.thierry@arm.com>
Current PCI IO region that is exposed through the DT contains ports that
are reserved by non-PCI devices.
Use the proper PCI IO start so that the region exposed through DT can
actually be used to reassign device BARs.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
---
arm/include/arm-common/pci.h | 1 +
arm/kvm.c | 3 +++
arm/pci.c | 21 ++++++++++++++++++---
3 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/arm/include/arm-common/pci.h b/arm/include/arm-common/pci.h
index 9008a0ed072e..aea42b8895e9 100644
--- a/arm/include/arm-common/pci.h
+++ b/arm/include/arm-common/pci.h
@@ -1,6 +1,7 @@
#ifndef ARM_COMMON__PCI_H
#define ARM_COMMON__PCI_H
+void pci__arm_init(struct kvm *kvm);
void pci__generate_fdt_nodes(void *fdt);
#endif /* ARM_COMMON__PCI_H */
diff --git a/arm/kvm.c b/arm/kvm.c
index 1f85fc60588f..5c30ec1e0515 100644
--- a/arm/kvm.c
+++ b/arm/kvm.c
@@ -6,6 +6,7 @@
#include "kvm/fdt.h"
#include "arm-common/gic.h"
+#include "arm-common/pci.h"
#include <linux/kernel.h>
#include <linux/kvm.h>
@@ -86,6 +87,8 @@ void kvm__arch_init(struct kvm *kvm, const char *hugetlbfs_path, u64 ram_size)
/* Create the virtual GIC. */
if (gic__create(kvm, kvm->cfg.arch.irqchip))
die("Failed to create virtual GIC");
+
+ pci__arm_init(kvm);
}
#define FDT_ALIGN SZ_2M
diff --git a/arm/pci.c b/arm/pci.c
index ed325fa4a811..1c0949a22408 100644
--- a/arm/pci.c
+++ b/arm/pci.c
@@ -1,3 +1,5 @@
+#include "linux/sizes.h"
+
#include "kvm/devices.h"
#include "kvm/fdt.h"
#include "kvm/kvm.h"
@@ -7,6 +9,11 @@
#include "arm-common/pci.h"
+#define ARM_PCI_IO_START ALIGN(PCI_IOPORT_START, SZ_4K)
+
+/* Must be a multiple of 4k */
+#define ARM_PCI_IO_SIZE ((ARM_MMIO_AREA - ARM_PCI_IO_START) & ~(SZ_4K - 1))
+
/*
* An entry in the interrupt-map table looks like:
* <pci unit address> <pci interrupt pin> <gic phandle> <gic interrupt>
@@ -24,6 +31,14 @@ struct of_interrupt_map_entry {
struct of_gic_irq gic_irq;
} __attribute__((packed));
+void pci__arm_init(struct kvm *kvm)
+{
+ u32 align_pad = ARM_PCI_IO_START - PCI_IOPORT_START;
+
+ /* Make PCI port allocation start at a properly aligned address */
+ pci_get_io_port_block(align_pad);
+}
+
void pci__generate_fdt_nodes(void *fdt)
{
struct device_header *dev_hdr;
@@ -40,10 +55,10 @@ void pci__generate_fdt_nodes(void *fdt)
.pci_addr = {
.hi = cpu_to_fdt32(of_pci_b_ss(OF_PCI_SS_IO)),
.mid = 0,
- .lo = 0,
+ .lo = cpu_to_fdt32(ARM_PCI_IO_START),
},
- .cpu_addr = cpu_to_fdt64(KVM_IOPORT_AREA),
- .length = cpu_to_fdt64(ARM_IOPORT_SIZE),
+ .cpu_addr = cpu_to_fdt64(ARM_PCI_IO_START),
+ .length = cpu_to_fdt64(ARM_PCI_IO_SIZE),
},
{
.pci_addr = {
--
2.20.1
next prev parent reply other threads:[~2020-01-23 13:48 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-23 13:47 [PATCH v2 kvmtool 00/30] Add reassignable BARs and PCIE 1.1 support Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 01/30] Makefile: Use correct objcopy binary when cross-compiling for x86_64 Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 02/30] hw/i8042: Compile only for x86 Alexandru Elisei
2020-01-27 18:07 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 03/30] pci: Fix BAR resource sizing arbitration Alexandru Elisei
2020-01-27 18:07 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 04/30] Remove pci-shmem device Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 05/30] Check that a PCI device's memory size is power of two Alexandru Elisei
2020-01-27 18:07 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 06/30] arm/pci: Advertise only PCI bus 0 in the DT Alexandru Elisei
2020-01-27 18:08 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 07/30] ioport: pci: Move port allocations to PCI devices Alexandru Elisei
2020-02-07 17:02 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 08/30] pci: Fix ioport allocation size Alexandru Elisei
2020-01-23 13:47 ` Alexandru Elisei [this message]
2020-01-29 18:16 ` [PATCH v2 kvmtool 09/30] arm/pci: Fix PCI IO region Andre Przywara
2020-03-04 16:20 ` Alexandru Elisei
2020-03-05 13:06 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 10/30] virtio/pci: Make memory and IO BARs independent Alexandru Elisei
2020-01-29 18:16 ` Andre Przywara
2020-03-05 15:41 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 11/30] vfio/pci: Allocate correct size for MSIX table and PBA BARs Alexandru Elisei
2020-01-29 18:16 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 12/30] vfio/pci: Don't assume that only even numbered BARs are 64bit Alexandru Elisei
2020-01-30 14:50 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 13/30] vfio/pci: Ignore expansion ROM BAR writes Alexandru Elisei
2020-01-30 14:50 ` Andre Przywara
2020-01-30 15:52 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 14/30] vfio/pci: Don't access potentially unallocated regions Alexandru Elisei
2020-01-29 18:17 ` Andre Przywara
2020-03-06 10:54 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 15/30] virtio: Don't ignore initialization failures Alexandru Elisei
2020-01-30 14:51 ` Andre Przywara
2020-03-06 11:20 ` Alexandru Elisei
2020-03-30 9:27 ` André Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 16/30] Don't ignore errors registering a device, ioport or mmio emulation Alexandru Elisei
2020-01-30 14:51 ` Andre Przywara
2020-03-06 11:28 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 17/30] hw/vesa: Don't ignore fatal errors Alexandru Elisei
2020-01-30 14:52 ` Andre Przywara
2020-03-06 12:33 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 18/30] hw/vesa: Set the size for BAR 0 Alexandru Elisei
2020-02-03 12:20 ` Andre Przywara
2020-02-03 12:27 ` Alexandru Elisei
2020-02-05 17:00 ` Andre Przywara
2020-03-06 12:40 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 19/30] Use independent read/write locks for ioport and mmio Alexandru Elisei
2020-02-03 12:23 ` Andre Przywara
2020-02-05 11:25 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 20/30] pci: Add helpers for BAR values and memory/IO space access Alexandru Elisei
2020-02-05 17:00 ` Andre Przywara
2020-02-05 17:02 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 21/30] virtio/pci: Get emulated region address from BARs Alexandru Elisei
2020-02-05 17:01 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 22/30] vfio: Destroy memslot when unmapping the associated VAs Alexandru Elisei
2020-02-05 17:01 ` Andre Przywara
2020-03-09 12:38 ` Alexandru Elisei
2020-01-23 13:47 ` [PATCH v2 kvmtool 23/30] vfio: Reserve ioports when configuring the BAR Alexandru Elisei
2020-02-05 18:34 ` Andre Przywara
2020-01-23 13:47 ` [PATCH v2 kvmtool 24/30] vfio/pci: Don't write configuration value twice Alexandru Elisei
2020-02-05 18:35 ` Andre Przywara
2020-03-09 15:21 ` Alexandru Elisei
2020-01-23 13:48 ` [PATCH v2 kvmtool 25/30] pci: Implement callbacks for toggling BAR emulation Alexandru Elisei
2020-02-06 18:21 ` Andre Przywara
2020-02-07 10:12 ` Alexandru Elisei
2020-02-07 15:39 ` Alexandru Elisei
2020-01-23 13:48 ` [PATCH v2 kvmtool 26/30] pci: Toggle BAR I/O and memory space emulation Alexandru Elisei
2020-02-06 18:21 ` Andre Przywara
2020-02-07 11:08 ` Alexandru Elisei
2020-02-07 11:36 ` Andre Przywara
2020-02-07 11:44 ` Alexandru Elisei
2020-03-09 14:54 ` Alexandru Elisei
2020-01-23 13:48 ` [PATCH v2 kvmtool 27/30] pci: Implement reassignable BARs Alexandru Elisei
2020-02-07 16:50 ` Andre Przywara
2020-03-10 14:17 ` Alexandru Elisei
2020-01-23 13:48 ` [PATCH v2 kvmtool 28/30] arm/fdt: Remove 'linux,pci-probe-only' property Alexandru Elisei
2020-02-07 16:51 ` Andre Przywara
2020-02-07 17:38 ` Andre Przywara
2020-03-10 16:04 ` Alexandru Elisei
2020-01-23 13:48 ` [PATCH v2 kvmtool 29/30] vfio: Trap MMIO access to BAR addresses which aren't page aligned Alexandru Elisei
2020-02-07 16:51 ` Andre Przywara
2020-01-23 13:48 ` [PATCH v2 kvmtool 30/30] arm/arm64: Add PCI Express 1.1 support Alexandru Elisei
2020-02-07 16:51 ` Andre Przywara
2020-03-10 16:28 ` Alexandru Elisei
2020-02-07 17:02 ` [PATCH v2 kvmtool 00/30] Add reassignable BARs and PCIE " Andre Przywara
2020-05-13 14:56 ` Marc Zyngier
2020-05-13 15:15 ` Alexandru Elisei
2020-05-13 16:41 ` Alexandru Elisei
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