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| author | James Hogan <james.hogan@imgtec.com> | 2014-05-29 10:16:27 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-05-30 13:00:26 +0200 |
| commit | fb6df0cdf0fe6fcb28fe29b965d9141bceaf00a7 (patch) | |
| tree | 4aff3331e4d4b43dfb8863f2d955de03bd35611f /arch/mips/kvm | |
| parent | b5dfc6c10608fdf0c35a747a0a3bf3f6e40a38e1 (diff) | |
| download | linux-fb6df0cdf0fe6fcb28fe29b965d9141bceaf00a7.tar.gz | |
MIPS: KVM: Add CP0_EPC KVM register access
Contrary to the comment, the guest CP0_EPC register cannot be set via
kvm_regs, since it is distinct from the guest PC. Add the EPC register
to the KVM_{GET,SET}_ONE_REG ioctl interface.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Cc: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/mips/kvm')
| -rw-r--r-- | arch/mips/kvm/kvm_mips.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c index 2a80a906ccc7..6b890ebe0e04 100644 --- a/arch/mips/kvm/kvm_mips.c +++ b/arch/mips/kvm/kvm_mips.c @@ -507,6 +507,7 @@ kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, #define KVM_REG_MIPS_CP0_COMPARE MIPS_CP0_32(11, 0) #define KVM_REG_MIPS_CP0_STATUS MIPS_CP0_32(12, 0) #define KVM_REG_MIPS_CP0_CAUSE MIPS_CP0_32(13, 0) +#define KVM_REG_MIPS_CP0_EPC MIPS_CP0_64(14, 0) #define KVM_REG_MIPS_CP0_EBASE MIPS_CP0_64(15, 1) #define KVM_REG_MIPS_CP0_CONFIG MIPS_CP0_32(16, 0) #define KVM_REG_MIPS_CP0_CONFIG1 MIPS_CP0_32(16, 1) @@ -562,7 +563,7 @@ static u64 kvm_mips_get_one_regs[] = { KVM_REG_MIPS_CP0_ENTRYHI, KVM_REG_MIPS_CP0_STATUS, KVM_REG_MIPS_CP0_CAUSE, - /* EPC set via kvm_regs, et al. */ + KVM_REG_MIPS_CP0_EPC, KVM_REG_MIPS_CP0_CONFIG, KVM_REG_MIPS_CP0_CONFIG1, KVM_REG_MIPS_CP0_CONFIG2, @@ -615,6 +616,9 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu, case KVM_REG_MIPS_CP0_CAUSE: v = (long)kvm_read_c0_guest_cause(cop0); break; + case KVM_REG_MIPS_CP0_EPC: + v = (long)kvm_read_c0_guest_epc(cop0); + break; case KVM_REG_MIPS_CP0_ERROREPC: v = (long)kvm_read_c0_guest_errorepc(cop0); break; @@ -711,6 +715,9 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu, case KVM_REG_MIPS_CP0_CAUSE: kvm_write_c0_guest_cause(cop0, v); break; + case KVM_REG_MIPS_CP0_EPC: + kvm_write_c0_guest_epc(cop0, v); + break; case KVM_REG_MIPS_CP0_ERROREPC: kvm_write_c0_guest_errorepc(cop0, v); break; |