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| author | Radim Krčmář <rkrcmar@redhat.com> | 2016-09-29 16:26:52 +0200 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2016-09-29 16:26:52 +0200 |
| commit | d9ab710b85310e4ba9295f2b494eda54cf1a355a (patch) | |
| tree | 439f5b76e1e85e792d6913056c7edf6923ba1b76 /arch/mips/include | |
| parent | 40a6d2208481b1d57c80b33110dbf78f271be5a6 (diff) | |
| parent | bf18db4e7bd99f3a65bcc43225790b16af733321 (diff) | |
Merge tag 'kvm_mips_4.9_1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/kvm-mips into next
MIPS KVM updates for v4.9
- A couple of fixes in preparation for supporting MIPS EVA host kernels.
- MIPS SMP host & TLB invalidation fixes.
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/kvm_host.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index 5f488dc8a7d5..07f58cfc1ab9 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -107,6 +107,20 @@ #define KVM_INVALID_INST 0xdeadbeef #define KVM_INVALID_ADDR 0xdeadbeef +/* + * EVA has overlapping user & kernel address spaces, so user VAs may be > + * PAGE_OFFSET. For this reason we can't use the default KVM_HVA_ERR_BAD of + * PAGE_OFFSET. + */ + +#define KVM_HVA_ERR_BAD (-1UL) +#define KVM_HVA_ERR_RO_BAD (-2UL) + +static inline bool kvm_is_error_hva(unsigned long addr) +{ + return IS_ERR_VALUE(addr); +} + extern atomic_t kvm_mips_instance; struct kvm_vm_stat { @@ -314,6 +328,9 @@ struct kvm_vcpu_arch { u32 guest_kernel_asid[NR_CPUS]; struct mm_struct guest_kernel_mm, guest_user_mm; + /* Guest ASID of last user mode execution */ + unsigned int last_user_gasid; + int last_sched_cpu; /* WAIT executed */ |