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| author |   Anup Patel <apatel@ventanamicro.com> | 2022-07-29 17:15:12 +0530 |
|---|---|---|
| committer |   Anup Patel <anup@brainfault.org> | 2022-07-29 17:15:12 +0530 |
| commit | 659ad6d82c3121088daeaa38ba94d182b55bbb22 (patch) | |
| tree | 7496f658bf6ac2b9e30dda2b8e510f0d23109637 | |
| parent | RISC-V: KVM: Add G-stage ioremap() and iounmap() functions (diff) | |
| download | linux-dev-659ad6d82c3121088daeaa38ba94d182b55bbb22.tar.xz linux-dev-659ad6d82c3121088daeaa38ba94d182b55bbb22.zip | |
RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap()
When the host has Svpbmt extension, we should use page based memory
type 2 (i.e. IO) for IO mappings in the G-stage page table.
To achieve this, we replace use of PAGE_KERNEL with PAGE_KERNEL_IO
in the kvm_riscv_gstage_ioremap().
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | arch/riscv/kvm/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index f7862ca4c4c6..bc545aef6034 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -361,7 +361,7 @@ int kvm_riscv_gstage_ioremap(struct kvm *kvm, gpa_t gpa, pfn = __phys_to_pfn(hpa); for (addr = gpa; addr < end; addr += PAGE_SIZE) { - pte = pfn_pte(pfn, PAGE_KERNEL); + pte = pfn_pte(pfn, PAGE_KERNEL_IO); if (!writable) pte = pte_wrprotect(pte); |