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Date: Thu, 7 Jul 2022 20:22:47 +0530 From: Anup Patel <apatel@...tanamicro.com> To: Paolo Bonzini <pbonzini@...hat.com>, Atish Patra <atishp@...shpatra.org> Cc: Palmer Dabbelt <palmer@...belt.com>, Paul Walmsley <paul.walmsley@...ive.com>, Alistair Francis <Alistair.Francis@....com>, Anup Patel <anup@...infault.org>, kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, Anup Patel <apatel@...tanamicro.com> Subject: [PATCH 4/5] 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@...tanamicro.com> --- arch/riscv/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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); -- 2.34.1
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