torvalds/linux
torvalds/linux
2
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
Code

RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap()

Browse Source 
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>
This commit is contained in:
Anup Patel 2022-07-29 17:15:12 +05:30 committed by Anup Patel
parent c9d57373fc
commit 659ad6d82c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/riscv/kvm/mmu.c
View File

@ -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);