From: Atish Patra <atishp@rivosinc.com>
To: linux-kernel@vger.kernel.org
Cc: Rajnesh Kanwal <rkanwal@rivosinc.com>,
Alexandre Ghiti <alex@ghiti.fr>,
Andrew Jones <ajones@ventanamicro.com>,
Andrew Morton <akpm@linux-foundation.org>,
Anup Patel <anup@brainfault.org>,
Atish Patra <atishp@atishpatra.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Sean Christopherson <seanjc@google.com>,
linux-coco@lists.linux.dev, Dylan Reid <dylan@rivosinc.com>,
abrestic@rivosinc.com, Samuel Ortiz <sameo@rivosinc.com>,
Jiri Slaby <jirislaby@kernel.org>,
kvm-riscv@lists.infradead.org, kvm@vger.kernel.org,
linux-mm@kvack.org, linux-riscv@lists.infradead.org,
Palmer Dabbelt <palmer@dabbelt.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Uladzislau Rezki <urezki@gmail.com>
Subject: [RFC kvmtool 09/10] riscv: Don't emit MMIO devices for CoVE VM.
Date: Wed, 19 Apr 2023 15:23:49 -0700 [thread overview]
Message-ID: <20230419222350.3604274-10-atishp@rivosinc.com> (raw)
In-Reply-To: <20230419222350.3604274-1-atishp@rivosinc.com>
From: Rajnesh Kanwal <rkanwal@rivosinc.com>
The CoVE VMs do not support MMIO devices yet. Do not emit
MMIO device nodes for CoVE VMs.
Signed-off-by: Rajnesh Kanwal <rkanwal@rivosinc.com>
---
riscv/fdt.c | 33 ++++++++++++++++++---------------
1 file changed, 18 insertions(+), 15 deletions(-)
diff --git a/riscv/fdt.c b/riscv/fdt.c
index 07ec336..a7d32b3 100644
--- a/riscv/fdt.c
+++ b/riscv/fdt.c
@@ -210,22 +210,25 @@ static int setup_fdt(struct kvm *kvm)
riscv_irqchip_phandle));
_FDT(fdt_property(fdt, "ranges", NULL, 0));
- /* Virtio MMIO devices */
- dev_hdr = device__first_dev(DEVICE_BUS_MMIO);
- while (dev_hdr) {
- generate_mmio_fdt_nodes = dev_hdr->data;
- generate_mmio_fdt_nodes(fdt, dev_hdr,
- riscv__generate_irq_prop);
- dev_hdr = device__next_dev(dev_hdr);
- }
+ /* CoVE VMs do not support MMIO devices yet */
+ if (!kvm->cfg.arch.cove_vm) {
+ /* Virtio MMIO devices */
+ dev_hdr = device__first_dev(DEVICE_BUS_MMIO);
+ while (dev_hdr) {
+ generate_mmio_fdt_nodes = dev_hdr->data;
+ generate_mmio_fdt_nodes(fdt, dev_hdr,
+ riscv__generate_irq_prop);
+ dev_hdr = device__next_dev(dev_hdr);
+ }
- /* IOPORT devices */
- dev_hdr = device__first_dev(DEVICE_BUS_IOPORT);
- while (dev_hdr) {
- generate_mmio_fdt_nodes = dev_hdr->data;
- generate_mmio_fdt_nodes(fdt, dev_hdr,
- riscv__generate_irq_prop);
- dev_hdr = device__next_dev(dev_hdr);
+ /* IOPORT devices */
+ dev_hdr = device__first_dev(DEVICE_BUS_IOPORT);
+ while (dev_hdr) {
+ generate_mmio_fdt_nodes = dev_hdr->data;
+ generate_mmio_fdt_nodes(fdt, dev_hdr,
+ riscv__generate_irq_prop);
+ dev_hdr = device__next_dev(dev_hdr);
+ }
}
/* PCI host controller */
--
2.25.1
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next prev parent reply other threads:[~2023-04-19 23:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-19 22:23 [RFC kvmtool 00/10] RISC-V CoVE support Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 01/10] riscv: Add a CoVE VM type Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 02/10] riscv: Define a command line option for CoVE VM Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 03/10] riscv: Define a measure region IOCTL Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 04/10] riscv: Invoke measure region for VM images Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 05/10] riscv: Do not create APLIC for TVMs Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 06/10] riscv: Change initrd alignment to a page size Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 07/10] riscv: Define riscv specific vm_type function Atish Patra
2023-04-19 22:23 ` [RFC kvmtool 08/10] riscv: virtio: Enforce VIRTIO_F_ACCESS_PLATFORM feature flag Atish Patra
2023-04-19 22:23 ` Atish Patra [this message]
2023-04-19 22:23 ` [RFC kvmtool 10/10] riscv: cove: Don't emit interrupt_map for pci devices in fdt Atish Patra
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