diff options
| author | Anup Patel <anup.patel@wdc.com> | 2021-11-17 10:30:29 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-11-22 10:36:19 +0530 |
| commit | 74c2e97b01846eb237b7819a3e2944455cfdb26a (patch) | |
| tree | ed58b2c2b5742184d495c766a15c4c880e1f03ed /arch | |
| parent | 756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5 (diff) | |
| download | linux-74c2e97b01846eb237b7819a3e2944455cfdb26a.tar.bz2 | |
RISC-V: KVM: Fix incorrect KVM_MAX_VCPUS value
The KVM_MAX_VCPUS value is supposed to be aligned with number of
VMID bits in the hgatp CSR but the current KVM_MAX_VCPUS value
is aligned with number of ASID bits in the satp CSR.
Fixes: 99cdc6c18c2d ("RISC-V: Add initial skeletal KVM support")
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/include/asm/kvm_host.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 25ba21f98504..2639b9ee48f9 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -12,14 +12,12 @@ #include <linux/types.h> #include <linux/kvm.h> #include <linux/kvm_types.h> +#include <asm/csr.h> #include <asm/kvm_vcpu_fp.h> #include <asm/kvm_vcpu_timer.h> -#ifdef CONFIG_64BIT -#define KVM_MAX_VCPUS (1U << 16) -#else -#define KVM_MAX_VCPUS (1U << 9) -#endif +#define KVM_MAX_VCPUS \ + ((HGATP_VMID_MASK >> HGATP_VMID_SHIFT) + 1) #define KVM_HALT_POLL_NS_DEFAULT 500000 |