Fangyu Yu 8c5fa3764f RISC-V: KVM: Remove automatic I/O mapping for VM_PFNMAP ...

As of commit aac6db75a9 ("vfio/pci: Use unmap_mapping_range()"),
vm_pgoff may no longer guaranteed to hold the PFN for VM_PFNMAP
regions. Using vma->vm_pgoff to derive the HPA here may therefore
produce incorrect mappings.

Instead, I/O mappings for such regions can be established on-demand
during g-stage page faults, making the upfront ioremap in this path
is unnecessary.

Fixes: aac6db75a9 ("vfio/pci: Use unmap_mapping_range()")
Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Tested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20251021142131.78796-1-fangyu.yu@linux.alibaba.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2025-10-24 21:24:36 +05:30

..

aia_aplic.c

RISC-V: KVM: Fix APLIC in_clrip and clripnum write emulation

2024-11-05 13:27:28 +05:30

aia_device.c

RISC-V: KVM: Drop the return value of kvm_riscv_vcpu_aia_init()

2025-07-28 22:27:07 +05:30

aia_imsic.c

RISC-V: KVM: Read HGEIP CSR on the correct cpu

2025-10-17 13:10:01 +05:30

aia.c

RISC-V: KVM: Move HGEI[E|P] CSR access to IMSIC virtualization

2025-07-11 18:33:27 +05:30

gstage.c

RISC-V: KVM: Prevent HGATP_MODE_BARE passed

2025-09-16 10:54:05 +05:30

Kconfig

entry: Rename "kvm" entry code assets to "virt" to genericize APIs

2025-09-30 22:50:18 +00:00

main.c

RISC-V: KVM: Prevent HGATP_MODE_BARE passed

2025-09-16 10:54:05 +05:30

Makefile

RISC-V: KVM: add support for FWFT SBI extension

2025-09-08 09:52:57 +05:30

mmu.c

RISC-V: KVM: Remove automatic I/O mapping for VM_PFNMAP

2025-10-24 21:24:36 +05:30

nacl.c

RISC-V: KVM: Add common nested acceleration support

2024-10-28 16:43:57 +05:30

tlb.c

RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs

2025-07-28 22:27:32 +05:30

trace.h

RISCV: KVM: add tracepoints for entry and exit events

2024-06-26 18:37:36 +05:30

vcpu_exit.c

RISC-V: KVM: Factor-out g-stage page table management

2025-07-28 22:27:30 +05:30

vcpu_fp.c

riscv: Rearrange hwcap.h and cpufeature.h

2023-11-09 10:15:51 -08:00

vcpu_insn.c

riscv: Move all duplicate insn parsing macros into asm/insn.h

2025-09-16 16:29:07 -06:00

vcpu_onereg.c

RISC-V: KVM: Move copy_sbi_ext_reg_indices() to SBI implementation

2025-09-16 10:54:18 +05:30

vcpu_pmu.c

RISC-V: KVM: Implement get event info function

2025-09-16 11:49:31 +05:30

vcpu_sbi_base.c

RISC-V: KVM: Add ONE_REG interface to enable/disable SBI extensions

2023-04-21 17:38:44 +05:30

vcpu_sbi_fwft.c

RISC-V: KVM: Implement ONE_REG interface for SBI FWFT state

2025-09-16 10:54:21 +05:30

vcpu_sbi_hsm.c

KVM: RISC-V: refactor sbi reset request

2025-05-21 09:34:49 +05:30

vcpu_sbi_pmu.c

RISC-V: KVM: Implement get event info function

2025-09-16 11:49:31 +05:30

vcpu_sbi_replace.c

RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs

2025-07-28 22:27:32 +05:30

vcpu_sbi_sta.c

RISC-V: KVM: No need of explicit writable slot check

2025-09-16 11:49:31 +05:30

vcpu_sbi_system.c

KVM: RISC-V: refactor sbi reset request

2025-05-21 09:34:49 +05:30

vcpu_sbi_v01.c

RISC-V: KVM: Pass VMID as parameter to kvm_riscv_hfence_xyz() APIs

2025-07-28 22:27:32 +05:30

vcpu_sbi.c

RISC-V: KVM: Move copy_sbi_ext_reg_indices() to SBI implementation

2025-09-16 10:54:18 +05:30

vcpu_switch.S

RISC-V: KVM: Use SBI sync SRET call when available

2024-10-28 16:44:03 +05:30

vcpu_timer.c

RISC-V: KVM: Disable vstimecmp before exiting to user-space

2025-07-11 18:30:17 +05:30

vcpu_vector.c

RISC-V: KVM: fix stack overrun when loading vlenb

2025-08-25 10:26:20 +05:30

vcpu.c

RISC-V: KVM: Fix check for local interrupts on riscv32

2025-10-16 17:17:29 +05:30

vm.c

RISC-V: KVM: Factor-out g-stage page table management

2025-07-28 22:27:30 +05:30

vmid.c

RISC-V: KVM: Remove unnecessary HGATP csr_read

2025-09-16 10:54:03 +05:30